Subaru Impreza WRC 1999 Richard Burns on board Tour de Corse
April 28, 2008
Basics of Subaru WRX Maintenance
Basics of Subaru WRX Maintenance
By Colin Hogue
Basic WRX Performance Tricks
Here are a few WRX performance tricks that I have come across that may give you that extra punch next time you pull up next to a Corvette at a stoplight. Please keep in mind that oftentimes increasing horsepower comes down to some common sense.
Oil Changes
Let's start off with an easy one. How about changing your oil? I can still hear my dad saying, "Make sure to change that oil every 3000 miles!" Nowadays, most cars don't require that oil be changed quite that often, but if you drive hard, it never hurts to put some fresh synthetic oil in there to help things run a little smoother. The Subaru WRX manual says to change the oil every 7,500 miles under normal driving conditions or every 3,750 if you drive hard. I suggest the latter.
Fresh, Properly Gapped Spark Plugs
Keeping your spark plugs inspected, cleaned, and gapped properly are also easy ways to keep your WRX running at its best. The proper spacing for a 2002 or 2003 WRX is 0.028"-0.031" (0.7-0.8 mm).
Fresh Air Filter
Some of these things are so basic that I hesitate to mention them, but a lot of the time, the things that we forget to do are the simple things. So, when was the last time you checked your air filter? Imagine trying to breath through a dirty pillow. Sounds difficult, right? That is what your car is doing every day unless you make sure to clean your air filter. Better yet, upgrade your intake system to some type of Ram Air kit to allow your WRX to inhale as much air as possible.
Premium Gasoline
With gas prices at an all-time high, this is one tip that is hard to swallow. Saving those extra pennies at the pump seems a good way to pinch pennies, but don't do it. Save money elsewhere. Pump the premium. Why? The higher the octane, the more power for the engine of your Subaru WRX. There is a reason that race cars run on high octane fuel. MORE POWER!
Check out my blog Everything WRX for more info.
April 27, 2008
Subaru World Rally Team Finland 1999
Subaru World Rally Team Finland 1999. Richard Burns and Juha Kankkunen in Action.
2008 Subaru Impreza WRX STI
2008 Subaru Impreza WRX STI by Billy
The new Subaru Impreza WRX STI, with a heavily-revised new 296 bhp turbocharged 2.5 liter ‘boxer’ engine, totally new platform and suspension plus even more advanced symmetrical all-wheel drive system, the World Rally Championship look-alike is sure to satisfy Subaru traditionalists.
At the rear, four exhaust pipes twinned in pairs at either side of the body not only give a distinctive look but reduce exhaust air-flow resistance by 38 per cent, increasing power and reducing noise.
The new Impreza WRX STI boasts a much plusher interior than before, offering leather/Alcantara-covered sports seats as standard with Recaro seats as an option. Curtain airbags are standard and the audio system has been upgraded.
The braking system has been developed in conjunction with Italian specialist, Brembo, and features four-pot calipers at the front and twin-pot at the rear ��" both ventilated discs.
A multi-mode Vehicle Dynamics Control System allows the driver to select the best setting for the prevalent road conditions. For example, it can be turned off altogether or set to ‘Traction’ which delays artificial interference.
More Power, More Driver Involvement
The award-winning 2.5 liter horizontally-opposed ‘boxer’ engine benefits from a thorough revision which includes a larger and more efficient intercooler which increases power.
The new STI also boasts stronger low to mid-speed torque thanks to variable-valve timing for the intake and exhaust system and a fast-warm catalytic converter for reduced emissions.
Power is now 296 bhp at 6,000 rpm with torque of 300 lb-ft at 4,000 rpm.
The much-praised six-speed manual transmission has been revised, with a shorter-throw gear-change and lighter movements, especially from neutral to 1st and 1st to 2nd gear thanks to a revised synchromesh.
A firm favorite with existing STI owners, the Driver’s Control Centre Differential has been improved, giving even more choice of handling characteristics.
The DCCD is operated via a switch in the centre console, allowing the driver to manually select the torque distribution front to rear, reverting to automatic mode every time the ignition is switched off....
Continued on: http://www.voguerides.com/?p=21
About the Author
VogueRides.com - only cool rides allowed
April 25, 2008
Mitsubishi Evo 8 vs Subaru Impreza
Mitsubishi Evo 8 vs Subaru Impreza
By Tom Clayson
In the world of rally there have always been the two big names. Mitsubishi and Subaru. Sure Ford is doing well this season, and Peugeot and Citroën were fairly dominant for the past couple of years, but they aren’t the pin ups of the bedroom walls. Those are reserved for Subaru’s making a splash, Burn’s 2001 championship pose on top of the car, or a Mitsubishi on ice in Sweden, they are the shots that capture the essence of rallying.
What we want to find out is which is better. The Impreza or the Evolution.
We’ll go straight to the (nearly) top of the tree for the Impreza with the 2.5 WRX STi (AWD) 4 door, starting at £26, 995. For this you get drilled aluminium pedals, some fairly tacky plastic on the centre console, and a single CD radio, with a couple of tweeters, and 4 speakers. Standard items include the bonnet scoop, gold alloys, two spoilers, and plenty of pink STi badges, inside and out.
With the Mitsubishi we start at what is essentially the base model, the FQ 300. You get a 2 litre engine and lots of sporty exterior features, including a spoiler, silver split rim alloys, slatted aluminium pedals, and an even worse interior than the Impreza, all for £27,999. The stereo is fiddly, and you will need a PHD, or a teenager, to get it working at all, but you do get deep Ricaro sports seats.
What you will really want to know, is which will get you the bragging rights down the pub. The Evo’s 0-62 is 0.2 seconds quicker than the Impreza at 4.8 seconds, but whilst having 305 bhp, over the Scooby’s 277, it’s top speed is actually slower. For anyone wanting either of these on a company car scheme then you’ll be interested to know that the extra 28bhp you get with the Evo equates to 334g/km of CO2 compared to 257g/km from the Impreza.
Read the conclusion, and get all the stats of these two amazing vehcles at RoadBusters - Mitsubishi Evo 8 vs Subaru Impreza.
For more information and a friendly and knowledable online community visit RoadBusters.com!
Fully Re-Designed 2008 Subaru Impreza - No More Secrets!
Fully Re-Designed 2008 Subaru Impreza - No More Secrets!
By Eric Hy Wong
Subaru's revolutionary ways began in the early 1970s. When other automobile manufacturers were shifting their focus from rear-wheel drive to front-wheel drive technology, Subaru's engineers discovered that distributing power to four wheels instead of two would create more traction and handling in any weather conditions. Sadly it would take the industry more than 30 years to reach the same conclusion. Subaru's innovative Symmetrical All Wheel Drive technology consists of a drivetrain that uses a horizontally opposed engine in front, connected to a front differential, then a transmission, a transfer case and a rear differential, all evenly distributed. After 35 years of continuous improvements and refinement, Subaru now has an AWD system that suits every driver's need.
Introducing the new 2008 Subaru Impreza, a fully re-designed European-inspired masterpiece. Do you like to be sporty? Look no further than the 5-door trim. It's dressed to impress with ground effect side skirts, rear diffuser and a beastly looking front grill and lip. Add these to the single curve that flows across the roof line to the rear spoiler and you've got the one of the sharpest looking cars on the road. Nonetheless, you may want to check out a more subtle four-door trim, only available for the North American market.
The Impreza is powered by Subaru's famous and surprisingly powerful boxer engine. The boxer's pistons move left and right instead of up and down, so that the engine does not have to strain against the natural forces of gravity. Because it works less than vertically opposed engines, the boxer burns fuel more efficiently, creating less harmful emissions and increasing fuel economy. The new 2008 Subaru Impreza has also tweaked the performance of the boxer engine, with improved low and mid-range torque to match the boxer's 170 horsepower. The evenly distributed power of the Impreza gives you almost flawless acceleration and creates an unmatched driving experience.
While enjoying the drive, you can listen to your favourite songs in the Impreza's premium, surround-sound audio system which reduces noise for better music enjoyment and offers an auxiliary input jack so you can plug in virtually any kind of audio device.
The new chassis and its double wishbone rear suspension has allowed the 2008 Impreza to offer significant improvements to leg, head and shoulder room, making longer drives even more comfortable. Those long drives are safer now as well since the new 2008 Impreza comes standard with six total air bags, two of which are newly inserted side curtain airbags, a first for the Impreza line.
These are the types of features that usually add thousands of dollars to the retail price of a car. But they are all standard on the new 2008 Subaru Impreza, making it one of the most cost effective vehicles on the market.
The new 2008 Subaru Impreza is more than just a car, it is a bold statement that will put Subaru on the map for years to come!
New Impreza WRX STI comes out of the shadows
Subaru has finally released detailed pictures of its range-topping new Impreza WRX STI which debuts at the 40th Tokyo Motor Show at the end of October.
This follows the recent release of a moody studio shot which gave very little away apart from highlighting the turbocharged car’s substantially wider body.
Developed by a dedicated team of performance-loving engineers, the new WRX STI features big blistered wheelarches for a ground-hugging stance.
Technical details will remain under wraps until Subaru’s press conference on Wednesday, October 24 at 11.50 am at the Subaru Booth where President Ikuo Mori will make a presentation.
The eagerly-awaited new Impreza WRX STI will go on sale in the UK next March, complementing an extensive range which includes the turbocharged WRX 2.5 and naturally-aspirated 1.5 and 2.0 litre models which appeal to a wider, mainstream audience.
Meanwhile, other Subaru highlights at the Tokyo Motor Show include a stylish seven-seater ‘Exiga Concept’ car which resembles a larger Legacy estate.
The ‘Exiga Concept’ not only comfortably accommodates seven adults thanks to compact engine/transmission packaging but also offers exhilarating performance from its 2.0 litre turbocharged ‘boxer’ engine mated to a 5-speed automatic gearbox and all-wheel drive transmission.
Also new is an environmentally-friendly electric car which is unusual in being a full five-seater despite compact dimensions.
Called ‘G4e Concept’, it is fitted with the next generation lithium-ion batteries stored underneath the floor.
Its triangle-shaped body is exceptionally attractive and Subaru’s owners, Fuji Heavy Industries, expects the car to have a 200 kilometre range per charge thanks to its light weight and high-performance, next-generation batteries
Gallery : http://www.subarunews.net/ngallery.php?gallery=gallery/51
From : http://www.subarunews.net
This follows the recent release of a moody studio shot which gave very little away apart from highlighting the turbocharged car’s substantially wider body.
Developed by a dedicated team of performance-loving engineers, the new WRX STI features big blistered wheelarches for a ground-hugging stance.
Technical details will remain under wraps until Subaru’s press conference on Wednesday, October 24 at 11.50 am at the Subaru Booth where President Ikuo Mori will make a presentation.
The eagerly-awaited new Impreza WRX STI will go on sale in the UK next March, complementing an extensive range which includes the turbocharged WRX 2.5 and naturally-aspirated 1.5 and 2.0 litre models which appeal to a wider, mainstream audience.
Meanwhile, other Subaru highlights at the Tokyo Motor Show include a stylish seven-seater ‘Exiga Concept’ car which resembles a larger Legacy estate.
The ‘Exiga Concept’ not only comfortably accommodates seven adults thanks to compact engine/transmission packaging but also offers exhilarating performance from its 2.0 litre turbocharged ‘boxer’ engine mated to a 5-speed automatic gearbox and all-wheel drive transmission.
Also new is an environmentally-friendly electric car which is unusual in being a full five-seater despite compact dimensions.
Called ‘G4e Concept’, it is fitted with the next generation lithium-ion batteries stored underneath the floor.
Its triangle-shaped body is exceptionally attractive and Subaru’s owners, Fuji Heavy Industries, expects the car to have a 200 kilometre range per charge thanks to its light weight and high-performance, next-generation batteries
Gallery : http://www.subarunews.net/ngallery.php?gallery=gallery/51
From : http://www.subarunews.net
Diesel debut early 2008
Subaru’s ground breaking Boxer Turbo Diesel motor will go on sale in Europe early next year.
The engine is the first production Boxer Turbo Diesel engine in the history of the car industry. Details of the motor were released at the Frankfurt Motor Show, which runs until later this month.
The compact diesel has similar dimensions to Subaru's equivalent petrol engines and is designed to fit into the engine bay of all of Subaru’s current and future models, linked to a symmetrical All-Wheel Drive transmission.
The horizontally opposed layout offers a sporty and compact engine. The power train retains Subaru's low centre of gravity to provide good handling and road holding. With its compact and rigid construction, there is no need for a balancer shaft to reduce vibrations.
The Boxer Turbo diesel is a two litre engine producing 110 kWs with good high revs throttle response. But more importantly it has a stump pulling 350 Nm of torque at low revs for strong pulling power. The Boxer Turbo Diesel has very low noise levels.
And to meet current and future environment regulations it has a CO2 emissions level of 150 g/km.
All initial production of the Boxer Turbo Diesel will go to Europe where, diesel powered cars make up 50 percent of the total market.
Subaru is looking to the Boxer Turbo Diesel to boost its sales in the northern hemisphere.
Subaru New Zealand plans to introduce diesel powered models to the local market in a couple of year’s time.
Gallery : http://www.subarunews.net/ngallery.php?gallery=gallery/49
From : http://www.subarunews.net
The engine is the first production Boxer Turbo Diesel engine in the history of the car industry. Details of the motor were released at the Frankfurt Motor Show, which runs until later this month.
The compact diesel has similar dimensions to Subaru's equivalent petrol engines and is designed to fit into the engine bay of all of Subaru’s current and future models, linked to a symmetrical All-Wheel Drive transmission.
The horizontally opposed layout offers a sporty and compact engine. The power train retains Subaru's low centre of gravity to provide good handling and road holding. With its compact and rigid construction, there is no need for a balancer shaft to reduce vibrations.
The Boxer Turbo diesel is a two litre engine producing 110 kWs with good high revs throttle response. But more importantly it has a stump pulling 350 Nm of torque at low revs for strong pulling power. The Boxer Turbo Diesel has very low noise levels.
And to meet current and future environment regulations it has a CO2 emissions level of 150 g/km.
All initial production of the Boxer Turbo Diesel will go to Europe where, diesel powered cars make up 50 percent of the total market.
Subaru is looking to the Boxer Turbo Diesel to boost its sales in the northern hemisphere.
Subaru New Zealand plans to introduce diesel powered models to the local market in a couple of year’s time.
Gallery : http://www.subarunews.net/ngallery.php?gallery=gallery/49
From : http://www.subarunews.net
FHI Introduces All-New Subaru Impreza WRX STi
Tokyo, October 24, 2007 – Fuji Heavy Industries Ltd. (FHI), the maker of Subaru automobiles, has announced the introduction of its all-new Subaru Impreza WRX STI in Japan. The new WRX STI went on sale nationwide through Subaru dealerships today.
Advancing FHI’s theme of producing the complete driver’s car and embodying the essence of total driving control, the third-generation Impreza WRX STI has debuted with complete makeovers in its design, engine, chassis and features. Benefiting from Subaru’s signature Symmetrical AWD and the Horizontally-Opposed Boxer engine, the new WRX STI is an innovative AWD sports model that delivers a combination of joy of driving and pride of ownership.
The new five-door model features not only a greatly refined engine and suspension but new mechanisms such as the multi-mode Driver’s Control Center Differential (DCCD) and multi-mode Vehicle Dynamics Control (VDC). Also, the Subaru Dynamic Chassis Control Concept (Subaru DC3) has been further developed for the WRX STI in order to maximize performance and driving pleasure and to ensure high levels of driver satisfaction through total control of the vehicle.
The vehicle’s interior and exterior design expresses sophistication and refined functionality. The widened body flares give an irresistible presence, integrating function and beauty, while the interior design stresses high quality and a sporty image. In addition, the Impreza WRX STI features advancements in the areas of environment, safety, and comfort, all of which match FHI’s goal of delivering exceptional performance and enjoyable and dependable drivability with environmental considerations in all Subarus.
The first-generation WRX STI model was based on the first Impreza WRX and was developed by Subaru Tecnica International (STI), an FHI subsidiary specialized in motorsports activities. Since its introduction in 1994, the WRX STI has established a solid reputation as a high-performance sports model. In the FIA World Rally Championship (WRC) that requires participants to compete with production-based models, Subaru WRX STI models have proven their credentials by bringing Subaru three consecutive Manufacturers’ championship titles from 1995 to 1997. In this context, FHI plans to submit a Group N homologation application effective as of January 1, 2008 for the new WRX STI to FIA.
The introduction of the new WRX STI has completed the full lineup of the Impreza series in Japan. The Impreza 15S, 20S and S-GT models have been available since June 2007, each offering individual strengths in performance and comfort.
Major Features
1. Design
[Exterior design]
Styled around the concept of “Pure Form for Driving”, the widened body flares accentuate the 5-door body taken from the new Impreza. A deep-set character line, running along the side from the front bumper to the rear end, and a pronounced edge shape reflects light and shadows and gives the car a different look depending on the time of day. While retaining a consistent flow from front to rear bumper, the front and back fenders are prominently projected, creating a distinctive identity and gives the WRX a unique road presence.
Aerodynamically improved body styling with a large rear spoiler optimizes the balance between the front and the rear quarter panels by reducing wind resistance. An aerodynamically curved form from the front bumper to the front fenders helps minimize lift forces and contributes to maintaining vehicle stability at high speeds. Engine compartment ventilation is provided on both sides of the front bumper and along the rear edges of the fenders.
The strong front grille employs a sharp wing shape with metallic mesh, suggesting the car’s inherent sportiness. The rear garnish is painted in the body color, enhancing the widened body shape. The rear edges of the front fenders are embellished with STI logo plated in cherry red.
The muffler comes with twin dual-tail pipes. Eye-catching 18-inch aluminum-cast wheels, distinguished by their five spokes and highlighted by dark-tone high-luster paint, are standard. These wheels enhance the vehicle’s bold and commanding presence while expressing high quality and streamlined beauty. BBS-brand cast wheels with spokes and sharp lines are also available as an option.
Seven exterior colors are available: Obsidian black pearl; pure white; spark sliver metallic; dark gray metallic; lightning red; midnight blue pearl (only for the WRX STI); WR blue mica.
[Interior design]
The interior is finished in black and silver to highlight its streamlined design, as well as to create an impression of elegance and sportiness. Dynamic designs with decorative insets in the center panels and door trim express roominess in the cabin. The vehicle information display, which constantly shows outside temperature, average mileage and time, as well as a navigation screen and audio display, are placed nearer the top of the dashboard for improved visibility and functionality.
The front bucket seats use a combination of Alcantara fabric and leather and are designed to offer easy access into and out of the vehicle and to hold the driver and passenger in comfortably and securely. Jointly developed by RECARO, custom bucket seats are also available as a manufacturer’s option. The RECARO seats offer fuller side support and excel in maintaining a comfortable position for sporty driving. Their height adjustment enables the further lowering of the hip point setting in the seats.
Power tilt and telescopic steering comes with a three-spoke genuine leather wheel embossed with the STI logo in its center. The instrument panel combines three meters, a tachometer between a speedometer and fuel gauge, in a single module illuminated in red. Each meter’s dial is colored cherry red, the STI brand color, emphasizing a quality feel and sportiness. When the ignition key is turned on, the needles of the three meters swing up to their maximums and quickly fall back to their original positions, imparting a boost of excitement for the driver. The meter module also comes with a REV Indicator, DCCD Torque Indicator, and Shift-up Indicator. In addition, red LED lights are used for interior door step lights, and they are also provided for the console tray. The center console is embellished with the STI logo, which illuminates when the car’s headlights are on.
2. Packaging
An extended wheelbase and widened track provide optimal dimensions for the new model to ensure its outstanding driving stability and straight-line maneuverability. (The wheelbase is wider by 85 mm, the front track is 40 mm wider, and the rear track is 45 mm wider, than the previous model.) The 5-door body style excels in balancing lift forces in the front and desirable downward forces in the rear, achieving optimal aerodynamic characteristics.
Shortening of the front and rear overhangs has reduced yaw moments of inertia, and enabled highly stable handling, while interior roominess has been preserved. The body structure has been enhanced for improved performance and upgraded specifications. However, the gross weight has remained nearly the same as in the previous model through streamlined body construction.
3. Powertrain
[2.0-litre turbo Boxer engine]
An electronically controlled throttle enables finely adjusted control of the 2.0-litre turbo Boxer engine and ensures acceleration that is linearly responsive to pedal movement. The Dual Active Valve Control System (Dual AVCS) hydraulically controls timing in both the intake and exhaust valves, which helps improve low-end torque while providing a strong power boost at high rotations. Dual AVCS also increases combustion efficiency, thereby reducing exhaust emissions. Changes made in the intake and exhaust ports promote smoother air in- and outflow, contribute to enhancing power output, and improve combustion efficiency, which reduces emissions and improves fuel mileage. In addition, changes in the shape of the turbocharger compressor have increased the efficiency of the air intake and enabled more responsive and smoother acceleration.
Also, the layout of the exhaust pipes greatly facilitate overall air outflow by canceling interference and increasing airflow between the exhaust port and the turbo charger to deliver optimal torque and engine response at various speeds.
A tumble generated valve (TGV) has been installed in the intake manifold, boosting combustion efficiency by controlling the intake flow. It improves efficiency particularly at the time of engine ignition. Also adopted is a secondary air system that forces air into the exhaust port to burn out any gasoline remaining in it. The system helps eliminate harmful substances when the powertrain is still cool, and it promotes early activation of a catalytic converter.
The muffler is placed horizontally, which lowers resistance in the exhaust flow, results in improved noise cancellation, and contributes to smooth power output.
[Transmission]
A 6-speed manual transmission, Subaru’s own development, has been further perfected for faster, more accurate and responsive shifts. Friction is substantially reduced through the adoption of a triple-cone synchromesh in the first gear and design changes in the shift sleeves.
4. Drivetrain
The front differential gear adopts a torque-sensitive LSD (limited slip differential) that excels in response to input torque; the rear differential employs the Torsen LSD that supports distribution of torque. The SI (SUBARU Intelligent)-Drive system offers three different modes of driving for the driver to enjoy: Intelligent; Sport; and Sport Sharp. For example, when a driver continues to heavily depress the accelerator pedal in the Intelligent mode, engine output is automatically boosted to the level of maximum torque.
The multi-mode Driver’s Control Center Differential (DCCD) enables the driver to choose from different modes of control for the center differential. This feature allows the driver to enjoy handling and maneuvering as he desires, and it provides high levels of vehicle straight-line stability unique to the AWD configuration. The multi-mode Vehicle Dynamics Control (VDC) also provides three different modes that the driver can choose from to experience a wider range of driving enjoyment, while always maintaining the safety features of VDC.
[Multi-mode DCCD]
AUTO mode: The standard mode automatically controls the differentials under all kinds of driving conditions.
AUTO [+] mode: This mode is suited for driving on slippery or icy roads, which requires higher levels of road traction, achieved by elevating differential control.
AUTO [-] mode: This mode enables agile driving whereby the vehicle responds swiftly to steering by the driver.
MANUAL mode: This mode allows the driver to control the center differential manually.
[Multi-mode VDC]
NORMAL mode: The standard mode controls ABS, TCS and VDC.
TRACTION mode: Adjusting both TCS and VDC, this mode extends the time period until the VDC kicks in. This mode is suited for sporty driving as it does not control torque-lowering in the engine.
OFF mode: This mode only controls ABS. It is used in emergencies like getting the vehicle out of deep snow or mud.
*Though the multi-mode VDC is the vehicle stability control device that offers a superior function, it is a driving assist system.
5. Chassis
The WRX STI boasts a state-of-the-art chassis design that reflects the Subaru DC3. Equipped with a strut-type front suspension and the newly designed double-wishbone rear suspension, and combined with its widened track, this model achieves outstanding cornering stability. Optimized suspension geometry settings with adjusted camber angles have made substantial improvements in road-hugging traction and riding comfort. Aluminum cast lower arms and a stabilizer bar in the front suspension help raise torsional and rolling rigidity, providing accurate response in steering. In the rear suspension, suspension links are attached to the body through the sub-frame, which enhances riding comfort and further lowers noise levels.
The Boxer engine is mounted lower on the chassis, further advancing vehicle stability already ensured by its low center of gravity: 22 mm lower at the front end of the engine, compared to the previous model.
The Brembo-made ventilated disk brake system employs an ultra-low expansion brake hose and tie rods for the brake booster. The brake system, coupled with the SuperSports ABS (antilock brake system) with EBD (electronic brake distribution), processes information fed from the G sensor, steering angle sensor, yaw rate sensor, and pressure sensor to deliver steady braking and control. It also works with the DCCD to ensure accurate braking on all four wheels independently, while minimizing deviations from the driver’s intended path. Bridgestone RE050A (245/40R18) tires are standard.
The hill-start assist function maintains the braking function one second after the brake pedal is released in case of starting a car on a hilly road.
6. Body construction
The WRX STI uses an advanced form of Subaru’s legendary and proprietary Ring-Shaped Reinforcement Frame Body Structure, reinforcing each pillar with frames that circle around the body in a ring shape. Reinforcements are now provided to connect firmly between the lower part of the front pillar and upper frames, increasing the strength of the strut attachment onto the body frame. Reinforcements are also added to the upper part of the opening of the rear gate.
Through streamlined body construction and the extensive use of high-tensile steel, including 590 MPa–level steel for major body frames, the new model has achieved both high body rigidity and a weight reduction of 11 kg.
7. Safety
Advancing the Ring-Shaped Reinforcement Frame Body Structure, the new WRX STI has realized high levels of safety and crash worthiness through effectively absorbing and dispersing crash impact in frontal, side, or rear impact crashes. The hood, for example, is specifically designed to disperse frontal impact. The new model boasts low-impact features for pedestrians and other vehicles in collisions.
All models are equipped with dual SRS airbags, side SRS airbags and curtain airbags, as well as 3-point seat belts in the rear seats. A collapsible brake pedal is available on all models to reduce the risk of foot injuries in accidents.
8. Environmental friendly features
The new model achieved an additional 50% reduction in emissions from the levels of the 2005 exhaust emission regulations set forth by Japan’s Ministry of Land, Infrastructure and Transport. This was accomplished primarily owing to reduced weight and performance improvements.
9. Utilities
The all-new double-wishbone rear suspension makes room for a wider and deeper luggage compartment, improving the utility of the car. The wide and flat load floor can accommodate two Tour-size golf bags or five carry-on bags. Larger door openings afford improved ingress and egress, and the rear doors open 75 degrees to allow for better rear seat access. The door pocket serves also as a beverage holder that can hold a 500-mL PET bottle. In addition, the center console box accommodates 8 CDs, while the console tray provides space for placing small items.
10. Others
Standard features on the WRX STI include retractable headlight washers; an anti-theft alarm system and immobilizer; a hood damper; and a keyless entry system with a push-bottom starter.
An HDD navigation system with audio capability (compatible with Subaru G-Book Alpha telematics service) is offered as a manufacturer’s option.
Specifications:
Body Size
(length/width/height) 4,415 X 1,795 X 1,475 mm
Wheel Base 2,625 mm
Track (front/rear) 1,530/1,540 mm
Kerb Weight 1,480 kg
Engine Type Horizontally-Opposed, 4-cylinder Dual AVCS*** 16Valve DOHC Intercooled twin scroll Turbo Engine
***AVCS:Active valve control system
Bore/Stroke 92.0 X 75.0 mm
Displacement 1,994 cc
Max. Output 227kW(308PS)/6,400 rpm
Max. Torque 422Nm(43.0kgfm)/4,400rpm
Fuel System EGI(Multi point sequential injection)
Fuel tank capacity 60 litre
Transmission Type 6MT:Forward 6-speed/Reverse 1-speed
Gear Ratio 3.636 (1st) 2,375 (2nd) 1.761 (3rd) 1.346 (4th) 1.062 (5th) 0.842 (6th) 3.545 (Reverse)
Final drive axle ratio 3.900
Suspension(front/rear) Independent, MacPherson strut type/Double wishbone type
Tyres 245/40R18
Gallery : http://www.subarunews.net/ngallery.php?gallery=gallery/53
From : http://www.subarunews.net
Advancing FHI’s theme of producing the complete driver’s car and embodying the essence of total driving control, the third-generation Impreza WRX STI has debuted with complete makeovers in its design, engine, chassis and features. Benefiting from Subaru’s signature Symmetrical AWD and the Horizontally-Opposed Boxer engine, the new WRX STI is an innovative AWD sports model that delivers a combination of joy of driving and pride of ownership.
The new five-door model features not only a greatly refined engine and suspension but new mechanisms such as the multi-mode Driver’s Control Center Differential (DCCD) and multi-mode Vehicle Dynamics Control (VDC). Also, the Subaru Dynamic Chassis Control Concept (Subaru DC3) has been further developed for the WRX STI in order to maximize performance and driving pleasure and to ensure high levels of driver satisfaction through total control of the vehicle.
The vehicle’s interior and exterior design expresses sophistication and refined functionality. The widened body flares give an irresistible presence, integrating function and beauty, while the interior design stresses high quality and a sporty image. In addition, the Impreza WRX STI features advancements in the areas of environment, safety, and comfort, all of which match FHI’s goal of delivering exceptional performance and enjoyable and dependable drivability with environmental considerations in all Subarus.
The first-generation WRX STI model was based on the first Impreza WRX and was developed by Subaru Tecnica International (STI), an FHI subsidiary specialized in motorsports activities. Since its introduction in 1994, the WRX STI has established a solid reputation as a high-performance sports model. In the FIA World Rally Championship (WRC) that requires participants to compete with production-based models, Subaru WRX STI models have proven their credentials by bringing Subaru three consecutive Manufacturers’ championship titles from 1995 to 1997. In this context, FHI plans to submit a Group N homologation application effective as of January 1, 2008 for the new WRX STI to FIA.
The introduction of the new WRX STI has completed the full lineup of the Impreza series in Japan. The Impreza 15S, 20S and S-GT models have been available since June 2007, each offering individual strengths in performance and comfort.
Major Features
1. Design
[Exterior design]
Styled around the concept of “Pure Form for Driving”, the widened body flares accentuate the 5-door body taken from the new Impreza. A deep-set character line, running along the side from the front bumper to the rear end, and a pronounced edge shape reflects light and shadows and gives the car a different look depending on the time of day. While retaining a consistent flow from front to rear bumper, the front and back fenders are prominently projected, creating a distinctive identity and gives the WRX a unique road presence.
Aerodynamically improved body styling with a large rear spoiler optimizes the balance between the front and the rear quarter panels by reducing wind resistance. An aerodynamically curved form from the front bumper to the front fenders helps minimize lift forces and contributes to maintaining vehicle stability at high speeds. Engine compartment ventilation is provided on both sides of the front bumper and along the rear edges of the fenders.
The strong front grille employs a sharp wing shape with metallic mesh, suggesting the car’s inherent sportiness. The rear garnish is painted in the body color, enhancing the widened body shape. The rear edges of the front fenders are embellished with STI logo plated in cherry red.
The muffler comes with twin dual-tail pipes. Eye-catching 18-inch aluminum-cast wheels, distinguished by their five spokes and highlighted by dark-tone high-luster paint, are standard. These wheels enhance the vehicle’s bold and commanding presence while expressing high quality and streamlined beauty. BBS-brand cast wheels with spokes and sharp lines are also available as an option.
Seven exterior colors are available: Obsidian black pearl; pure white; spark sliver metallic; dark gray metallic; lightning red; midnight blue pearl (only for the WRX STI); WR blue mica.
[Interior design]
The interior is finished in black and silver to highlight its streamlined design, as well as to create an impression of elegance and sportiness. Dynamic designs with decorative insets in the center panels and door trim express roominess in the cabin. The vehicle information display, which constantly shows outside temperature, average mileage and time, as well as a navigation screen and audio display, are placed nearer the top of the dashboard for improved visibility and functionality.
The front bucket seats use a combination of Alcantara fabric and leather and are designed to offer easy access into and out of the vehicle and to hold the driver and passenger in comfortably and securely. Jointly developed by RECARO, custom bucket seats are also available as a manufacturer’s option. The RECARO seats offer fuller side support and excel in maintaining a comfortable position for sporty driving. Their height adjustment enables the further lowering of the hip point setting in the seats.
Power tilt and telescopic steering comes with a three-spoke genuine leather wheel embossed with the STI logo in its center. The instrument panel combines three meters, a tachometer between a speedometer and fuel gauge, in a single module illuminated in red. Each meter’s dial is colored cherry red, the STI brand color, emphasizing a quality feel and sportiness. When the ignition key is turned on, the needles of the three meters swing up to their maximums and quickly fall back to their original positions, imparting a boost of excitement for the driver. The meter module also comes with a REV Indicator, DCCD Torque Indicator, and Shift-up Indicator. In addition, red LED lights are used for interior door step lights, and they are also provided for the console tray. The center console is embellished with the STI logo, which illuminates when the car’s headlights are on.
2. Packaging
An extended wheelbase and widened track provide optimal dimensions for the new model to ensure its outstanding driving stability and straight-line maneuverability. (The wheelbase is wider by 85 mm, the front track is 40 mm wider, and the rear track is 45 mm wider, than the previous model.) The 5-door body style excels in balancing lift forces in the front and desirable downward forces in the rear, achieving optimal aerodynamic characteristics.
Shortening of the front and rear overhangs has reduced yaw moments of inertia, and enabled highly stable handling, while interior roominess has been preserved. The body structure has been enhanced for improved performance and upgraded specifications. However, the gross weight has remained nearly the same as in the previous model through streamlined body construction.
3. Powertrain
[2.0-litre turbo Boxer engine]
An electronically controlled throttle enables finely adjusted control of the 2.0-litre turbo Boxer engine and ensures acceleration that is linearly responsive to pedal movement. The Dual Active Valve Control System (Dual AVCS) hydraulically controls timing in both the intake and exhaust valves, which helps improve low-end torque while providing a strong power boost at high rotations. Dual AVCS also increases combustion efficiency, thereby reducing exhaust emissions. Changes made in the intake and exhaust ports promote smoother air in- and outflow, contribute to enhancing power output, and improve combustion efficiency, which reduces emissions and improves fuel mileage. In addition, changes in the shape of the turbocharger compressor have increased the efficiency of the air intake and enabled more responsive and smoother acceleration.
Also, the layout of the exhaust pipes greatly facilitate overall air outflow by canceling interference and increasing airflow between the exhaust port and the turbo charger to deliver optimal torque and engine response at various speeds.
A tumble generated valve (TGV) has been installed in the intake manifold, boosting combustion efficiency by controlling the intake flow. It improves efficiency particularly at the time of engine ignition. Also adopted is a secondary air system that forces air into the exhaust port to burn out any gasoline remaining in it. The system helps eliminate harmful substances when the powertrain is still cool, and it promotes early activation of a catalytic converter.
The muffler is placed horizontally, which lowers resistance in the exhaust flow, results in improved noise cancellation, and contributes to smooth power output.
[Transmission]
A 6-speed manual transmission, Subaru’s own development, has been further perfected for faster, more accurate and responsive shifts. Friction is substantially reduced through the adoption of a triple-cone synchromesh in the first gear and design changes in the shift sleeves.
4. Drivetrain
The front differential gear adopts a torque-sensitive LSD (limited slip differential) that excels in response to input torque; the rear differential employs the Torsen LSD that supports distribution of torque. The SI (SUBARU Intelligent)-Drive system offers three different modes of driving for the driver to enjoy: Intelligent; Sport; and Sport Sharp. For example, when a driver continues to heavily depress the accelerator pedal in the Intelligent mode, engine output is automatically boosted to the level of maximum torque.
The multi-mode Driver’s Control Center Differential (DCCD) enables the driver to choose from different modes of control for the center differential. This feature allows the driver to enjoy handling and maneuvering as he desires, and it provides high levels of vehicle straight-line stability unique to the AWD configuration. The multi-mode Vehicle Dynamics Control (VDC) also provides three different modes that the driver can choose from to experience a wider range of driving enjoyment, while always maintaining the safety features of VDC.
[Multi-mode DCCD]
AUTO mode: The standard mode automatically controls the differentials under all kinds of driving conditions.
AUTO [+] mode: This mode is suited for driving on slippery or icy roads, which requires higher levels of road traction, achieved by elevating differential control.
AUTO [-] mode: This mode enables agile driving whereby the vehicle responds swiftly to steering by the driver.
MANUAL mode: This mode allows the driver to control the center differential manually.
[Multi-mode VDC]
NORMAL mode: The standard mode controls ABS, TCS and VDC.
TRACTION mode: Adjusting both TCS and VDC, this mode extends the time period until the VDC kicks in. This mode is suited for sporty driving as it does not control torque-lowering in the engine.
OFF mode: This mode only controls ABS. It is used in emergencies like getting the vehicle out of deep snow or mud.
*Though the multi-mode VDC is the vehicle stability control device that offers a superior function, it is a driving assist system.
5. Chassis
The WRX STI boasts a state-of-the-art chassis design that reflects the Subaru DC3. Equipped with a strut-type front suspension and the newly designed double-wishbone rear suspension, and combined with its widened track, this model achieves outstanding cornering stability. Optimized suspension geometry settings with adjusted camber angles have made substantial improvements in road-hugging traction and riding comfort. Aluminum cast lower arms and a stabilizer bar in the front suspension help raise torsional and rolling rigidity, providing accurate response in steering. In the rear suspension, suspension links are attached to the body through the sub-frame, which enhances riding comfort and further lowers noise levels.
The Boxer engine is mounted lower on the chassis, further advancing vehicle stability already ensured by its low center of gravity: 22 mm lower at the front end of the engine, compared to the previous model.
The Brembo-made ventilated disk brake system employs an ultra-low expansion brake hose and tie rods for the brake booster. The brake system, coupled with the SuperSports ABS (antilock brake system) with EBD (electronic brake distribution), processes information fed from the G sensor, steering angle sensor, yaw rate sensor, and pressure sensor to deliver steady braking and control. It also works with the DCCD to ensure accurate braking on all four wheels independently, while minimizing deviations from the driver’s intended path. Bridgestone RE050A (245/40R18) tires are standard.
The hill-start assist function maintains the braking function one second after the brake pedal is released in case of starting a car on a hilly road.
6. Body construction
The WRX STI uses an advanced form of Subaru’s legendary and proprietary Ring-Shaped Reinforcement Frame Body Structure, reinforcing each pillar with frames that circle around the body in a ring shape. Reinforcements are now provided to connect firmly between the lower part of the front pillar and upper frames, increasing the strength of the strut attachment onto the body frame. Reinforcements are also added to the upper part of the opening of the rear gate.
Through streamlined body construction and the extensive use of high-tensile steel, including 590 MPa–level steel for major body frames, the new model has achieved both high body rigidity and a weight reduction of 11 kg.
7. Safety
Advancing the Ring-Shaped Reinforcement Frame Body Structure, the new WRX STI has realized high levels of safety and crash worthiness through effectively absorbing and dispersing crash impact in frontal, side, or rear impact crashes. The hood, for example, is specifically designed to disperse frontal impact. The new model boasts low-impact features for pedestrians and other vehicles in collisions.
All models are equipped with dual SRS airbags, side SRS airbags and curtain airbags, as well as 3-point seat belts in the rear seats. A collapsible brake pedal is available on all models to reduce the risk of foot injuries in accidents.
8. Environmental friendly features
The new model achieved an additional 50% reduction in emissions from the levels of the 2005 exhaust emission regulations set forth by Japan’s Ministry of Land, Infrastructure and Transport. This was accomplished primarily owing to reduced weight and performance improvements.
9. Utilities
The all-new double-wishbone rear suspension makes room for a wider and deeper luggage compartment, improving the utility of the car. The wide and flat load floor can accommodate two Tour-size golf bags or five carry-on bags. Larger door openings afford improved ingress and egress, and the rear doors open 75 degrees to allow for better rear seat access. The door pocket serves also as a beverage holder that can hold a 500-mL PET bottle. In addition, the center console box accommodates 8 CDs, while the console tray provides space for placing small items.
10. Others
Standard features on the WRX STI include retractable headlight washers; an anti-theft alarm system and immobilizer; a hood damper; and a keyless entry system with a push-bottom starter.
An HDD navigation system with audio capability (compatible with Subaru G-Book Alpha telematics service) is offered as a manufacturer’s option.
Specifications:
Body Size
(length/width/height) 4,415 X 1,795 X 1,475 mm
Wheel Base 2,625 mm
Track (front/rear) 1,530/1,540 mm
Kerb Weight 1,480 kg
Engine Type Horizontally-Opposed, 4-cylinder Dual AVCS*** 16Valve DOHC Intercooled twin scroll Turbo Engine
***AVCS:Active valve control system
Bore/Stroke 92.0 X 75.0 mm
Displacement 1,994 cc
Max. Output 227kW(308PS)/6,400 rpm
Max. Torque 422Nm(43.0kgfm)/4,400rpm
Fuel System EGI(Multi point sequential injection)
Fuel tank capacity 60 litre
Transmission Type 6MT:Forward 6-speed/Reverse 1-speed
Gear Ratio 3.636 (1st) 2,375 (2nd) 1.761 (3rd) 1.346 (4th) 1.062 (5th) 0.842 (6th) 3.545 (Reverse)
Final drive axle ratio 3.900
Suspension(front/rear) Independent, MacPherson strut type/Double wishbone type
Tyres 245/40R18
Gallery : http://www.subarunews.net/ngallery.php?gallery=gallery/53
From : http://www.subarunews.net
2008 Subaru Impreza WRX STI at Tokyo Motor Show
Debuting at the 2007 Tokyo Auto Show on October 24, the long-awaited 2008 Subaru Impreza WRX STI stands at the very top of Subaru's performance lineup.
Subaru Impreza WRX STi Press Release
Press Release:
Subaru offers the new AWD performance icon
Concept
The new WRX STI was developed with the eternal theme and essence of the driverʼs car, the "total driving control," that the preceding WRX STI models also pursued. This AWD sports model gives maximum driving pleasure through its combination of power, performance, handling and ride capabilities thanks to engineering exclusively designed for the WRX STI and its five-door package. It also balances excellent safety and environmental aspects at a high level.
Styling
Using a new five-door body style developed from the Impreza model, the new Impreza WRX STI displays a powerful design language that speaks directly to its performance credentials, integrating function and beauty. Adopting shortened front and rear overhangs, a longer wheelbase and widened body flares, the Impreza WRX STI clearly embodies driving performance in dynamic exterior design that delivers as overwhelming presence and beauty.
Performance
The new Horizontally-Opposed 2.0-liter four-cylinder turbocharged engine was developed exclusively for the new WRX STI. By further improving the basic performance of the engine, and mating it to SI-DRIVE (SUBARU Intelligent Drive), the WRX STI offers not only outright performance as might be expected, but also delivers excellent handling under extreme as well as normal driving conditions. Featuring Subaru's unique Symmetrical AWD and specially developed in-house 6-speed manual transmission as its base technologies, multi mode DCCD* and VDC**, which control traction and stability more precisely, have also been added to WRX STI. To complete its performance credentials, the evolved chassis by "Subaru Dynamic Chassis Control Concept" has dramatically improved road-hugging capability and will provide exhilaration and confidence in every driving situation.
*DCCD: Driver's Control Center Differential
**VDC: Vehicle Dynamics Control
Body size
(length×width×height) 4415×1795×1475mm
Wheel-base
2625mm
Track(front/rear)
1530/1540mm
EngineType
Dual AVCS 16Valve DOHC
Horizontally-Opposed 4-cylinder
twin scroll Turbo
Capacity
1994cc
Suspension
(front / rear)
Reverse type strut/Double wishbone
Equipment
6MT/SI-DRIVE(SUBARU Intelligent Drive)/*DCCD/*VDC
Tire Size
245/40R18
Which Is The Better Buy, Subaru Wrx Sti Or The Mitsubishi Lancer Evolution?
Which Is The Better Buy, Subaru Wrx Sti Or The Mitsubishi Lancer Evolution?
By Taylor Bamber
One of the hardest decisions is deciding to buy a WRX STI or a Lancer Evolution. Both of the cars are very similar and are fantastic. The new MR edition (Mitsubishi Racing) has created a more competition for the WRX this year. The MR edition is not as quite as nice as the British version that sports 342 HP and a 60 thousand dollar price tag but it is better than last years Evolution. The new Lancer has 5 more ponies than last years model and has many more features that give the STI a run for its money.
We will start out with the Lancer Evolution MR edition. The lancer starts slightly under $35,000 and has many added benefits from last years Evolution. For starters it has more power because of redesigned airflow to the turbo, something that I believe should have happened a long time ago. Some say the biggest change is the new BBS wheels, the wheel way almost 3 pounds lighter than last years model. Also the true auto enthusiasts will spot the MR edition different with the cool new badging, and around the rear window the impressive “shark teeth” which are vortex generators with the ability to create 35% less lift at 110 mph and helps the wing create more down force by reducing turbulence.
Now for the 2005 Subaru WRX STI, the car just goes to show that Subaru is one tough competitor. When you sit down in the car the first thing you notice is the smaller diameter steering wheel, a smaller wheel creates more of a rally sport feel to the auto. Next is the redesigned helical type front limited slip differential. It does a much better job transferring power to those front wheels for added handling. Next is the braking, the brakes on the WRX have been upgraded via adjustable ABS controller that allows more feedback from the brakes to the driver.
In conclusion both of the cars have almost identical performance numbers with the Mitsubishi coming out slightly I mean slightly ahead. But having only 1000 MR Mitsubishis built will put a dampener on sales. I think this is and will continue to be one of the best rivalries in the import community. So I say let the battle for rally bred street supremacy go, all it will bring is better and better cars by both manufacturers.
About The Author:
Taylor Bamber is a proud owner of a 300zx turbo and belongs to many 300zx clubs in Northern Colorado. Being waist deep in the import world, he knows where to find all the best online JDM engines deals. He has scoured the web and has found the best sites for your import car needs. Check out his site at JDM-4U.com
The 2006 Subaru STI - Specs and Improvements
The 2006 Subaru STI - Specs and Improvements
By Marvyn H
The 2006 Subaru WRX STI - there have been a few changes, mostly for the better. Looks have been changed, especially from the front of the car, giving it a more general appeal.
As all enthusiasts will know they've upped the engince capacity from 2.0 to 2.5 litres and according to Subaru this was not only to increase performance but the torque makes the overall driveability in most conditions that much better.
For the pictures and full article click here.
For the un-initiated: STI stands for Subaru Technica International, which is the high-performance and motorsports division of Fuji Heavy Industries. What this ultimately means is that when driving an STI you are driving a car bred for racing, in rallies. The WRX STI receives it's motorsports technology straight from the Subaru World Rally Championship.
The 206 kW converts to about 300 horsepower and the 392 Nm of torque to 300 lb-ft; that added to the Subaru Symmetrical all-wheel-drive means some serious power and stability. You can really throw this car into corners and it sticks to the road. It also means that you can get from 0 to 100 km/h in around 5.0 seconds.
Specs:
Engine Capacity: 2.5 litre
Gearbox: 6-speed Manual
Power: 206kW
Torque: 392 Nm
Written by the Webmaster of All About All Sport.
Fast Subie Guide to Subaru WRX STi
Fast Subie Guide to Subaru WRX STi
By Alan Dang
The Best Uppipe
Best Uppipe: COBB Tuning inconel uppipe.
Reasoning: Inconel is twice as strong and insulates twice as well as stainless steel.
Honorable Mention:
a. Crucial Racing uppipe. Comes coated inside and out for good heat retention.
b. TurboXS cast iron uppipe. Cast iron piping for good heat retention.
c. APS uppipe. Cast iron piping for good heat retention.
Best Uppipe on a budget: Gutted stock uppipe.
Reasoning: Gutting your stock uppipe can have the same benefits as using a more expensive aftermarket uppipe. Dyno Proof.
Honorable Mention:
a. GT Spec uppipe. Cheapest aftermarket uppipe.
b. Used uppipe by any manufacturer. Some don't want used components on their car, but for those that don't mind, you can get an expensive aftermarket uppipe for 25-50% off its retail value. Keep in mind that many warranties are not transferable though.
Further research: Uppipe FAQ
The Best Downpipe
Best Downpipe: COBB Tuning Downpipe.
Reasoning: Cast design is better for heat retention than the other downpipe offerings on the market. More heat retention = quicker exhaust velocity.
Honorable Mention:
a. APS Downpipe. Cast iron design is better for heat retention than the other downpipe offerings on the market.
b. Helix Downpipe. Cast design is better for heat retention than the other downpipe offerings on the market.
c. Crucial Racing downpipe. Comes coated inside and out for good heat retention.
Best Downpipe on a budget: Gutted OEM downpipe.
Reasoning: Stock appearance and good heat retention. Probably for the more mechanically inclined considering the work required, but even with professional welding, it will be under $100 for a catless downpipe.
Honorable Mention:
a. Stromung, HKS, and Oakos offer flat plate downpipes for around $175.
b. Bosal and Stromung offer twin dump downpipes for between $200-$250.
c. Used downpipe by any manufacturer. Some don't want used components on their car, but for those that don't mind, you can get an expensive aftermarket downpipe for 25-50% off its retail value. Keep in mind that many warranties are not transferable though.
Further research: Downpipe FAQ
The Best Exhaust
Best Exhaust: There is no best exhaust.
Reasoning: Exhausts are broken down into many catagories, the most popular of which are cost and sound.
Loudest Exhaust:
a. TurboXS RFL
b. Blitz NUR Spec R
c. Kakimoto
d. BPM Twister MKIII
e. Helix
Reasoning: These are the commonly known "loudest" exhausts on the market. No dB information exists, but to quote a famous saying, "If you have to ask, it's too loud".
Best Sounding Exhaust:
a. Prodrive
b. ScoobySport
c. Stromung
Reasoning: These are commonly known as the "best sounding" exhausts on the market. This is probably the most subjective catagory, but these are the three most commonly thought of exhausts.
Quietest Exhaust:
a. Prodrive
b. M2
c. MRT Twin Tip
d. Borla Hush
e. STi
f. GReddy Evolution
Reasoning: The comparative and subjective data on these quietest exhuasts is listed:
a. M2 Performance 94db @ idle, 94 @ 3000 RPM
b. GReddy Evolution 94db @ idle, 92 @ 3000 RPM
c. MRT Twin Tip: No data, but commonly known as quiet.
d. Prodrive: 94dB @ idle
e. STi Muffler: No data, but commonly known as quiet.
f. Borla Hush: New exhaust with few reviews, but all of them seem to point to quiet.
Best Exhaust on a budget: The most inexpensive exhaust is a custom exhaust using a skilled local exhaust shop and a few ordered components. Custom units can be fabricated for as little as $450. MattSpec Exhaust is one example of how to craft a quality, inexpensive exhaust.
Reasoning: Though not a name brand, a custom exhaust skillfully fabricated using quality components will be far cheaper and just as powerful as a Vendor purchased unit.
Honorable Mention:
Used exhaust by any manufacturer. Some don't want used components on their car, but for those that don't mind, you can get an expensive aftermarket exhaust for 25-50% off of its retail value. Keep in mind that many warranties are not transferable though.
Further research: Exhaust FAQ
The Best Intercooler Hoses
Best Intercooler Hoses: Whichever ones are on sale.
Reasoning: Functionally, they are all the same. Unless you have a color preference, the cheapest ones will suit you fine.
Honorable Mention:
Used intercooler hoses by any manufacturer. Some don't want used components on their car, but for those that don't mind, you can get an expensive aftermarket intercooler hoses for 25-50% off of their retail value. Keep in mind that many warranties are not transferable though.
Further research: Intercooler Hose FAQ
The Best Pulley
Best Pulley: Perrin
Reasoning: Perrin is the only major manufacturer of lightweight stock diameter pulleys. Though under-driven pulleys aren't a major concern, most people don't want to mess with any possible electrical issues they may cause.
Best Pulley on a budget: Mr Josh's.
Reasoning: Nearly identical to the Perrin unit with a greatly reduced price.
Honorable Mention:
Used pulley by any manufacturer. Some don't want used components on their car, but for those that don't mind, you can get an expensive aftermarket pulley for 25-50% off of its retail value. Keep in mind that many warranties are not transferable though.
Further research: Pulley FAQ
The Best Header
Best Header: Borla
Reasoning: Borla headers have the industry's best warranty, are extremely affordable, and are the only headers that come ceramic coated.
Best Headers on a budget: eBay headers.
Reasoning: These are so cheap, why not? There are several brands available on eBay through a couple different manufacturers.
Honorable Mention:
Used header by any manufacturer. Some don't want used components on their car, but for those that don't mind, you can get an expensive aftermarket header for 25-50% off of its retail value. Keep in mind that many warranties are not transferable though.
Further research:
Header FAQ
The Best Gears
Best Gears for 300WHP or below and non hard core drag racers: 2004+ OEM WRX gears that have been shot peened. 2003+ OEM WRX 1st, 2nd, & 3rd gears (AKA the ones that break the most) were increased to STi RA width, though no one knows the cut-off date in 2003, so the best bet is to go with 04+ gears. Shot peening increases their strength quantitatively by 20%. Some may also be interested in additional cryo treatment. A complete OEM gearset can be had for ~$850, shot peening is ~$150, & cryo treatment is ~$150. Any of these options are cheaper, stronger, and more readily availble than RA gearsets available through Vendors.
Reasoning: While going this route requires a lot of work via the end user, the benefits of additional treatment will make them stronger than their pure RA cousins and at the same time cost less.
Honorable Mention: RA gears available through Vendors (~$1300) or PPG 1/2 + OEM 3/4/5 (~$1600).
Best Gears for 300WHP and up and hard core drag racers: PPG gears. While not much data is available for the "better" gear sets, PPG stands alone as the only gear set that doesn't have any reports of broken gears. That isn't to say that users will have great success with PAR, Kaaz, etc., but they have all had their share of broken gears.
Reasoning: Based on tremendous amounts of research here and the MRT tranny forums (probably the best transmission resource available), PPG seems to be the king of gears that someone might be able to afford.
Further research:
Transmission FAQ
And when it comes to a Blow Off Valve, Manual Boost Controller, or Cold Air Intake.....just say no unless you realize the risk factors involved with them. I don't care who makes them or how "good" they are, I wouldn't recommend these to anyone for any reason. Refer to the BOV FAQ and Intake FAQ for more info.
- Unabomber of Nasioc
Fast Subie
http://www.fastsubie.com
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