GT40s.com - View Single Post - CdA of a GT40

Arnie · 03-19-08, 08:29 PM

I'd like to assume a Mk1 for this, but I was a little surprised to read on Chris's ZFQ thread that he thought most GT40 replicas would strugggle to exceed 165mph, and that a taller final drive to allow greater speeds is unnecessary.

I'm after the CdA figures (The CDA figure is [drag coefficient x frontal area] so I may calculate the top speed of the car, and work out the optimal gear ratios.

Anyone got the figures or had their car in a wind tunnel?

Thanks

03-19-08, 08:29 PM	#1 (permalink)
Arnie ADW UK Rookie Join Date: May 2007 Location: UK Posts: 23 Rep Power: 2	CdA of a GT40 - Calculate your optimal gearing... I'd like to assume a Mk1 for this, but I was a little surprised to read on Chris's ZFQ thread that he thought most GT40 replicas would strugggle to exceed 165mph, and that a taller final drive to allow greater speeds is unnecessary. I'm after the CdA figures (The CDA figure is [drag coefficient x frontal area] so I may calculate the top speed of the car, and work out the optimal gear ratios. Anyone got the figures or had their car in a wind tunnel? Thanks