5 replies to this topic

[Kalmake]

I am looking for data on how much lift an open wheel produces. Measured forces or just theoretical coefficients... any car... anything?

[Greg Locock]

DragCdA DownforceCdA
Front 0.225 -0.057
Rear 0.2805 -0.0915

[NRoshier]

I wonder how different, if at all, it is for different wheel rpm/tyre surface speed? any known effect?
Actually forget this, on reflection it seems a silly question.

[phantom II]

From Peter Wright's Ferrari F1

Originally posted by Kalmake
I am looking for data on how much lift an open wheel produces. Measured forces or just theoretical coefficients... any car... anything?

[Kalmake]

Thanks.

If we give the ferrari L/D ratio of 3, the wheel L/D ratios match very close to those given by Greg Lecock. Maybe they are from an F1 car too?

Originally posted by NRoshier I wonder how different, if at all, it is for different wheel rpm/tyre surface speed? any known effect? Actually forget this, on reflection it seems a silly question.

Rotating wheel has lower drag and lift than a stationary one. I don't know how much, but it's significant.

[Greg Locock]

Nice piece of reverse enginneering. Yes, I used the figures from PW's book, and get an L/D for the Ferrari of 2.8, at a top speed of 320