"Demon-Xanth knows how to operate a street." (demon-xanth) 01/17/2015 at 18:16 • Filed to: None

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aberson Bresident of the FullyAssed Committe > Demon-Xanth knows how to operate a street. 01/17/2015 at 18:27

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mfw YOU SEE DA BOOTY

MasterMario - Keeper of the V8s > Demon-Xanth knows how to operate a street. 01/17/2015 at 18:59

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At least the Orange one has it over the drive wheels...he was kind of thinking

tromoly > Demon-Xanth knows how to operate a street. 01/17/2015 at 19:15

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This isn't a spoiler, but it's still big.

wabbalosthiskey > MasterMario - Keeper of the V8s 01/17/2015 at 19:30

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A wing has nothing to do with the drive wheels, it's to create downforce on the chassis to keep the car stable :P

e36Jeff now drives a ZHP > wabbalosthiskey 01/17/2015 at 19:39

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Yes, but a trunk-mounted spoiler will apply force behind the rear axle, causing the car to pivot around the rear axle creating lift on the front axle, thus removing weight(and traction) from the front axle. In order to avoid this, the vehicle needs a spoiler in front of the front axle applying equal forces. Or you need to move the mounting point of the spoiler to between the front and rear axles.

MasterMario - Keeper of the V8s > wabbalosthiskey 01/17/2015 at 20:13

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Yea but the more down force on the drive wheels the more power you can put down with out spinning wheels...i know it's more about stability though...thus the "kind of thinking"

wabbalosthiskey > e36Jeff now drives a ZHP 01/17/2015 at 20:17

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No it doesn't - If the rear axle was solid mounted, the car very lightweight and the axle located fairly far forward, perhaps that could happen on a regular car if lots of other variables came into alignment. I can see how it's easy to think that is true, but in reality with the vehicle weight grossly exceeding the added downforce, particularly the ratio of weight behind/in front of the rear axle, and the "pivot points" so to speak held in suspension, it distributes the force over the entire car before reaching the point that it actually will begin to pivot on the axle. If you have spent time in wind tunnels tuning wings on race cars with calibrated scales and stress gauges like I have, and you've witnessed weight transferring off of the front axle with any sort of normal amount of rear wing, then it would be on completely different setups then I have :)

And if we were talking about spoilers, which are something completely different, I can't speak to much technical knowledge there but my assumption would be that the same would hold true.

wabbalosthiskey > MasterMario - Keeper of the V8s 01/17/2015 at 20:25

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Well the idea is logical, but in reality at the speeds a wing starts generating downforce it's a non-issue.. On just about any race car the tires alone have plenty of grip for the power/weight. Accidental high speed burnouts aren't really the problem :P

Wings are purely there for two reasons; to increase vertical grip so the car will corner faster and be more predictable, and to straighten the airflow as it leaves the car to prevent turbulence and drag. It's interesting stuff that's not really understood unless you've got hands on experience with it.