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Old 9th February 2007, 05:59 PM  
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Canuk40
9 Tenths
Canada
 
Join Date: Mar 2003
Location: Canada
GT40: CAV GT
Posts: 960
Re: Aerodynamic Data for GT40s

Hi J.

I've always recommended a .250 wedge in the car (nose down) when setting ride height. The last CAV we had on the scales for setup had 1172 lbs on the front wheels and 1527 lbs on the rear, full up - driver passenger and gas.

So 120kg or 265lbs would lift the front end by less than a quarter inch. However if you started out nose up or got light over a crest and caught air under the nose at those speeds, you'd get a ton of lift.

Anyways, the more information out there the better. Seems like the later single outlet nose (68'69) worked well enough at Le Mans that the side chin spoilers weren't used (too much drag) where close to 330kph was acheived.

Cheers
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