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Sti Shift Brake
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If you're into fast cars and racing, you'll know that there are a lot of things you can tweak on your car to make it perform better; engine, suspension, wheel and tire modifications can all make a big difference, but one key thing that many people overlook is the brakes. I started autocrossing two years ago in my Subaru WRX. It's a great car to learn on; the turbocharged 4-cylinder boxer engine packs enough punch to accelerate quickly and the AWD not only helps you get the car up to speed quickly, but it helps you carry the speed through the corners too. But the biggest drawback to a WRX is its brakes. It doesn't have the same 4-piston Brembo brakes that it's bigger brother, the STi, has. So after my first few autocrosses on my stock brakes, I realized they needed some love if they were going to stand up to the abuse I was giving them.
Since I was only racing every other weekend, I didn't want to get anything too extreme; I needed a brake setup that was tough enough to not develop brake fade after a few hot laps, but easy enough to live with in my daily commute. So after doing some research on the internet, I found that my stock brake lines at the caliper were actually made of rubber! Rubber brake lines flex, which can add a squishy feeling to the brake pedal. So I decided to add a set of stainless steel brake lines and upgrade my brake fluid to a DOT5 racing fluid while I was at it. I also wanted the brake pads to have more initial bite after I hit the pedal, so I upgraded to a set of Hawk HP brake pads. They seemed like a good compromise to me as they are marketed as a performance street pad and I had read a lot of good reviews on them.
After getting these parts installed, I went for a quick drive and I could immediately tell the difference. The brake pedal was much firmer and the brakes were much more responsive to my pedal inputs. At my next autocross, the improvements in my lap times proved to me that improving your braking system really can make you faster! The better pedal feedback and higher friction pads allowed me to brake later, producing a higher average lap speed and slightly faster lap times. Plus I was able to do all three laps without experiencing any brake fade, which meant my brakes still performed well when my tires were hot and sticky. I certainly wasn't the fastest person out there, but I could tell that upgrading the brakes had made a big improvement to the way it performed on the track.
In case you have questions or need even more specific information, here are a few additional resources about brakes and auto parts like brake rotors.
New Subaru Impreza Wrx Goes on Sale in Japan
Subaru’s new Impreza WRX goes on sale in Japan this week as a late 2007 model, and with it come greater anticipation for the high-performance STI version, which won't be officially revealed until the Tokyo auto show in October later this year.
The Subaru Impreza WRX five-door hatchback (known as the Impreza S-GT in Japan) features a turbocharged 2.0-liter version of the Subaru boxer-4, and it produces 248 horsepower at 6,000 rpm. When this car hits U.S. shores this fall as a 2008 model, it will have a 2.5-liter iteration of this engine that produces about 225 hp and 226 pound-feet of torque. In the UK, tight European emissions laws mean buyers won't be offered the WRX model when the hatch arrives there later this year.
Meanwhile, the “wilder”, high-performance 2008 Subaru WRX STI expected to remain under cover until the Tokyo auto show already has a few key facts leaked.
The WRX STI draws motorsports technology directly from Subaru expertise in World Rally Championship (WRC) competition and is designed to appeal to the most serious driving enthusiasts. STI stands for Subaru Tecnica International -- the high-performance and motorsports subsidiary of Fuji Heavy Industries Ltd.
The highly anticipated STI is set to be powered by a tuned version of the 2.5-litre boxer engine turbocharged to produce more than 300hp and around 400Nm of torque, be mated to Subaru's existing six-speed manual box. A new automated manual, sourced from specialist firm Aisin, is expected to join the line-up when the latest Impreza is facelifted in 2009.
Subaru is making sure that the new Impreza can and will give its archrival, the 2008 Mitsubishi Evo X - which will feature an optional twin-clutch sequential-manual gearbox with steering-wheel-mounted shift paddles – a run for its money.
The top Impreza will offer a range of unique styling additions, including a specially developed bonnet, grille and a wide front bumper with big air intakes.
Flared wheelarches house smart 18-inch alloys, which will hide the existing STI's Brembo brake system. Buyers can expect to see minor tweaks to the all-wheel-drive system, and engineers have also taken the opportunity to tune the handling, thanks to a more compact double wishbone rear suspension set-up.
Inside, the new Impreza range boasts higher-quality trim, with the STI getting a pair of supportive bucket seats up front to boost its sporty appeal.
Subaru (maker of top of the line Subaru oxygen sensor), has also told Inside Line that a turbocharged boxer-4 diesel for the WRX is in the works and should be out by early 2009. The company is reportedly eager to drop a high-mpg diesel into the Forester and Impreza soon after the Legacy gets Subaru's first diesel next summer, so the WRX is part of the program. Sources from Subaru have also reportedly confirmed that the company is working on a five-speed automatic and a continuously variable transmission, and both these options could be offered as early as mid-2009.
Subaru is a Japanese car company and is the automotive division of Fuji Heavy Industries Co., Ltd. (FHI). It is currently an affiliate of Toyota Motor Corporation, with it owning 8.7% of FHI. They acquired that stake from General Motors, who bought 20% of FHI in 1999 to have an extended presence in international markets, and collaborate technologically with FHI.
FHI has recently set a new theme for Subaru cars that emphasizes Subaru’s goal: Subaru offers a comfortable, pleasant drive for the driver and passengers; provides peace of mind and reliability; and extends convenience, utility and functionality.
About the Author
Zeke Gervis has a degree in Human Resource Management. He is an F1 fanatic and is a collector of racing memorabilias. At present, he enjoys working at a consulting firm in Iowa.
Shimano Road Cycle shifters?
I was wondering whether the new 9 speed shimano STI Sora shifter could have a straight swap with Tiagra 9 speed shifters (http://www.evanscycles.com/products/shimano/tiagra-4500-sti-shift-brake-lever-9-speed-ec008101)
Thanks.
The spacings on the cassette are the same for all Shimano's nine speeds. As long as it is the "nine speed version" Sora Tiagra 105 Ultegra and Dura ace are interchangeable.
It has been a few years since Ultegra and Dura ace were 9 speed. but there is still plenty of shifters about. You can get them new (old stock) or lightly used for not much at all. But if you want the "thumb switch" that only comes on Sora
http://www.shimano.com.au/publish/content/global_cycle/en/au/index/products/road/sora.html
DRIVE TIME: BMW 135i delivers high performance on a budget
The 1 Series may be the smallest and least expensive Bimmer in the lineup, but don’t be fooled by its “entry level” position. BMW has long enjoyed a reputation for building “driver’s cars” and in the 1 Series they haven’t strayed from that mandate.
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