Quote:
Originally Posted by atledreier
Old thread, but i'm interested in actual figures for how much lift I'm getting at certain speeds with a stock, or close to stock setups? I've read through this thread but could only find a CL value that doesn't give me actual numbers in Newtons for a certain speed. (I think, I'm a novice at aero).
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Typically, the lift is related to the velocity^2 and your frontal cross-section area.
where
L = lift force
rho = density of the fluid (air)
v = free-stream velocity (vehicle speed or localized speed over a wing, etc)
S = frontal cross-section area
In reality, you're looking at a dynamic density and localized velocities... but let's keep it simple.
If you needed a ballpark number, here's a horribly inaccurate estimate:
S = body + tires + side mirrors
= ( (51" - 5") x 70") + (2 x 9" x 5") + (2 x 7" x 5")
= 3390 sq in = 23.5 sq ft