 Help me set up my formula for the Nurbrurgring |
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 Jun 9 2012, 01:02 PM
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newbie Group: Members Posts: 16 Joined: 8-June 12 Member No.: 142,238  |
http://ls1tech.com/forums/suspension-brake...ml#post16397439
Long story of my experience so far. Right now I'm leaning toward stock brakes or possibly putting the C5 brackets back on with 17in wheels and 315/35 tires. I'm also tempted to stay with the 16in wheels, and get some 255 slicks, just cause the car steers/tracks/rides so well with the lighter 16in wheels. Any thoughts? Is there a calculator some where that lets you compare grip with 255 vs 315 tires? Also any suggestions on seats or steering wheels would be appreciated. |
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Jun 11 2012, 05:38 AM
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newbie Group: Members Posts: 16 Joined: 8-June 12 Member No.: 142,238 |
QUOTE (Blainefab @ Jun 10 2012, 07:42 AM)  No, for general autox and track duty 315's all around are great, once the proper fitment techniques are used. That was a caution specific to the OP's usage, for the reason stated. Running at top speed on the Ring is different than any of our tracks, From his excellent description of how the car is working (ie not working), he has a setup issue that needs to be fixed, and I sense that he is new to the Fbody or car setup in general, and has not done the typical suspension improvements that are prerequisites to using fatties. Just putting 315's on an otherwise stock car could be disastrous. Cutting a tire or grounding the rim to the frame at top speed carries a big penalty. This is a major concern of mine. Until you've run it, you can imagine the amount of vertical load that a car experiences on the ring. I was getting airborne at 3 different points on the track, you get probably 2-3+vertical G's, at which point the car weighs in the range of 6-9,000lbs, and the suspension is still having to absorb massive bumps,and cornering forces. Not to mention the Carousel that loads up the suspension then beats the hell out of the car. So what are some possible solutions for getting the rear planted under trail braking, or curing the lift-off over-steer? |
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Jun 11 2012, 09:02 AM
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I build race cars  Group: Advanced Members Posts: 4,748 Joined: 31-August 05 From: Central coast, CA Member No.: 874 |
QUOTE (phoenix64 @ Jun 10 2012, 10:38 PM) So what are some possible solutions for getting the rear planted under trail braking, or curing the lift-off over-steer? Check the stuff I mentioned, and let us know here what non stock parts you have on the car now. |
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Posts in this topic
phoenix64 Help me set up my formula for the Nurbrurgring Jun 9 2012, 01:02 PM
Blainefab Nice read - Thanks for the all the detail, it help... Jun 9 2012, 08:15 PM
pharmd QUOTE (Blainefab @ Jun 9 2012, 03:15 PM) ... Jun 10 2012, 02:54 AM Blainefab QUOTE (pharmd @ Jun 9 2012, 07:54 PM) QUO... Jun 10 2012, 07:42 AM phoenix64 I also wonder if its a weight balance issue?
When... Jun 11 2012, 05:47 AM Jeff94TA Everything Alan mentions is spot on as always. I ... Jun 11 2012, 11:02 AM dailydriver Hasen't roy run the Nordschleife??
Maybe he c... Jun 11 2012, 06:56 PM |
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