Advantages of Over/Understeer

[timbo]

It is DF that has ruined the finer points of O/S U/S in F1.
I liked the comparison with a stock car on a loose surface half sideways through the apex.

Picture taken @ 1981 -- ground effect at it's peak

[autogyro]

Good catch by a brilliant driver but not what I am saying at all.

[flynfrog]

maybe something more from your child hood autogyro?

Its bio fueled has no wings no gearbox losses and a spec set of engines

[RacingManiac]

nah the engine is not spec....you can have some wildly varying standard for "1 horsepower"...lol

[autogyro]

Certainly a drivers sport.
I would not suggest you try to put one in a wind tunnel.

[flynfrog]

Certainly a drivers sport.
I would not suggest you try to put one in a wind tunnel.

I do believe that gentlemen has a redbull shark fin on his head.

[raymondu999]

Don't forget the engine's "exhaust"

[mx_tifoso]

Hey guys,

I'm a little confused with the physics behind the rule: Reaerward weight bias = oversteer, and front weight bias=understeer.

The way I see it, the momentum of the car is the same regardless, and by shifting wiehgt forward the normal force on the front tyres is larger, causing more grip and hence oversteer.

When I heard I was wrong, I thought about it another way: The centripetal force required to keep the rear end in line is larger if the rear end has more mass, hence moving the balance rearwards will cause oversteer as is the rule. Problem is though, wouldn't this increase in centripetal force required by fullfilled by the extra reaer grip due to increased normal force?

Thanks guys

[Jersey Tom]

Tires work more 'efficiently' (higher coefficient of friction) with less load. So while yes, as you put more mass on the front axle the tires WILL produce more total lateral FORCE capacity.. it is at a decreasing rate relative to how much load you've added.

Peak coefficient of friction is what matters in this case, for limit trim.

However, if you have forward 'load' transfer from acceleration, it is the opposite scenario. You've added normal force to the front axle without increasing the mass.. opposite in the rear axle.. so forward load transfer will (all things being equal) tend to shift the car balance more toward oversteer.