Quote:
Originally Posted by Richbot
I’d think keeping air out from under the car must be an order of magnitude larger than any help you get from venting the hood but just a guess? Certainly once you’ve closed that off with the front aero as well as possible, the cooling air suddenly becomes a bigger contributor to the remaining crappy aero problems we have to deal with when the engine is in the wrong place? My envelope math is way too full of assumptions for me to guess at a number but realistically I think dozens of lb would be the most to hope for. Lift mostly just comes from the plain sad truth that cars do not fly so clean flow in the 3-4”’of space underneath is near impossible to achieve and even worse with a front engine.
The F1 comparisons are uh...not useful for hopefully obvious reasons  But one useful takeaway... they don’t dump their radiators under the car |
If it was dozens of pounds, that would be great. More than I thought it would be.
As a novice to this topic, I'm working under the assumption that the 5" splitter is doing all the heavy work, and that everything else is extra bits of flavor by comparison.
My splitter may not sit super low when the car is at rest, but when I'm pressed into a turn, it's quite close to the ground. In a bowl type of turn, it's almost rubbing the ground. (I don't run super stiff springs.)
Anyway, the main goal of this hood vent project was to flow more air through the engine bay and perhaps cool it down a bit in there. If there's any negative lift/downforce to be had, I will consider it a gift from the gods of grip.