Thread: Stijn!!
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RKDinOKC
RKDinOKC is offline
The Stick
 
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Join Date: Dec 2007
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I just wondered if those chipped up fancy cams would make any class difference.

I learned a LOT about suspension setup on the 88 944 Turbo S I had. Did a lot of research and found that you only need the suspension to be stiff enough to keep the travel from bottoming out or hitting the stoops. Any stiffer and you are just harshing the ride. Same thing with sway bars and dampners. The most important part is for the suspension to be balanced. AND tires will make the biggest difference on ride harshness. Poly bushings are way too harsh for a street car.

Brakes…When top gear did the thing when they took a hatch and spent money to try to get a faster lap time and they upgraded the brakes. They seemed astounded that upgrading the brakes did not improve the lap time. You don't upgrade brakes for a quicker lap. You upgrade brakes because they overheat lap after lap, and fade/fail. I am the only one I know of that overheats stock brakes at an autocross. Maybe it's because I trail brake on turn-in to setup a four wheel drift.

As far as lightening up the car…In my 944 Turbo at the autocross weight did not make much difference. What I lost in acceleration and braking I gained in corner speed. I noticed this one time when I had set FTD at an autocross then gave a ride to a large person on the fun runs and someone had left the timing gear on. My time with a passenger was exactly the same as my FTD. I also notice my speed at the end of the long straight when I had to start braking was 10 mph slower. After getting the Boxster I did a fast lap with an empty tank and 80 lbs removed from the car. Went and gassed up and put everything back in the car. Same lap times. That is hen I quit removing the spare tire, tool kit, and all that stuff from my car to autocross. I'm not saying weight reduction doesn't help, but a couple of hundred pounds doesn't make much difference to me.

On the 944 Turbo having the A/C on actually put enough load on the motor to keep the turbo spooled up for gear changes and made lap times faster because you could get back in the power quicker. Considered putting a fuel injector in the exhaust manifold that sprayed when lifting the throttle turned the fuel off to keep the turbo spinning. That's what is done on race turbos, you can tell because flames shoot out the exhaust when they are decelerating.

Man I gotta get my foot rehabbed so I can drive in anger again. Just can't seem to blip the throttle on downshifts or threshold brake or even right foot traction control, basically anything one might consider finesse with the right foot, since the nail.
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Richard aka "The Stick"
06 Cayenne S Titanium Edition

Last edited by RKDinOKC; 12-18-2013 at 09:08 AM..
Old 12-18-2013, 08:04 AM
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