ronnycage

I get questions about over and understeer alot at the track and people asking quick solutions to either, heres a quick guide to over and understeer. I didnt see anything posted for it so I thought id contribute.

decrease oversteer or increase understeer
air pressure: decrease front psi/ increase rear psi
wheels: narrower front/ wider rear rim.
tires: narrower front/ wider rear tire
shocks/struts: stiffen front/ soften rear
springs: stiffen front/ soften rear
anti roll bars: stiffen front/ soften rear
camber: incrase positive front camber
toe: increase toe in

Increase oversteer or decrease understeer
air pressure: increase front / decrease rear psi
wheels: wider front/ narrower rear rim
tires: wider front/ narrower rear
shocks/struts: soften front/ stiffen rear
springs: soften front/ stiffen rear
anti roll bars: soften front/ stiffen rear
camber: increase negative front camber
toe: increase toe out

Integra21

*mods this should be a sticky!

simple stuff but good information! thanks for sharing

Antonov

I like the over steer control pedal personally

edit: I think you got the pressures wrong

PedalFaster

It shouldn't be a sticky because it's oversimplified to the point where it's not completely true. For example, if you need more front grip, you should decrease front tire pressures... unless the reason you need more front grip is that your front tire pressures are too low, in which case you should increase front tire pressures.

ronnycage

like i said... its only a quick guide. I have a insane major writeup I could bring to this site that would blow all your minds... just gotta find the time.

PedalFaster

Just to be clear, I'm not criticizing you or your write-up -- it's great that you're contributing to the forum. I'm just saying that it's not yet in a sticky-worthy state.

Orthonormal

I disagree with the tire pressure recommendations, too. If you have the pressures set correctly to begin with, then either increasing or decreasing pressure will reduce grip.

FF2Skip

Considering the initial post has been in print before elsewhere, I would like to be blown. Please indulge us. Share your write-up.

Vanishing Point

Understeer vs. Oversteer for dummies:

When you hit the wall with the front of your car that's understeer, when you hit the wall with the rear of the car that's oversteer.

mzk784

I got this table from a Yokohama Advan brochure, it pretty much on the same subject and summarizes a lot of things in a simple way: