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Old 02-13-2014, 08:55 PM
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Richard Hudgins Richard Hudgins is offline
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Join Date: Jun 1999
Location: Fallbrook, CA USA, CA
Cobra Make, Engine: Porsche 928 S4
Posts: 739
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Quote:
Originally Posted by Cobra #3170 View Post
I have a PI System 2 in my Cobra and have seen 1.3 average cornering and peak of 1.5 with Hoosier A6's it is very hard to get over 1.5 without aero down load.
Absolutely on the money. The JBL Comp chassis pulls close to those numbers with the Hoosier DOT R6 compound tires. Note: this is on 245/45/17 front and 315/35/17 rear at Willow during the week (green track).

During a race weekend these numbers will go up a bit to 1.3>5 steady state as the track becomes much stickier.

I have never seen any non-aero car do much better than these numbers on a flat track/corner.

And transient lateral G spikes are just for bragging.
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Richard Hudgins
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