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RSA in BBS “track shoes” |
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Resting at Watkins Glen |
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PCA Autocross |
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On track at Summit point Raceway West Virginia |
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At PCA BMWCC Autocross in Rochester NY |
Over time changes have been made that have enhanced the performance of the
car.
I will deal with suspension first as that should be priority #1 but most of
us start mistakenly with the engine.
Car has been lowered and has special Eibach sport springs with 350# rate
front and 500 rear. However, to make this more acceptable for street use there are lower rate small
helper springs above. These work in conjunction with sport Bilstein shocks matched to the springs.
Porsche Carrera Cup adjustable sway bars blend with this set up to give a flat ride and ability to modify the setup.
Front brakes have been upgraded to twin turbo Brembo calipers with slotted floating rotors and aluminum hats. For track use three piece BBS race wheels are used with Kumho Victor Racer tires
- 225 45 17 in front and 275 40 17 in the rear. Original wheels and Toyo tires for the street or a
wet track.
Engine has K&N cone filter, Autothority mass airflow meter, bored out throttle body and at the other end. New GHL headers and cats and muffler replacing B&B which induced a harmonic between 2 and 3000 RPM that became hard to tolerate on the street. I hope it will produce more horsepower too.
Of course there is the obligatory strut tower brace, Dougherty removable roll bar, Simpson 6 point harness, (Performance Products cup holder- blush) and Flight Engineering accelerator pedal which helps enormously with heel and toe shifting. I'm sure I have forgotten something.
It is still a nice street car but on the limits! Peter S.
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