Quote Originally Posted by sambb View Post
When my car was at pedders, I was able to pull down on the rear toe hook with the car on the lasers and you could see it toe in more as I swung off the back of the car - so Gary is right, more compression or more lowering exaggerates the toe in.
Just quickly, this isn't an accident it is deliberate, engineered into the car so that when pressing on the rear toes in more. Toe in is a "stabilising" alignment setting, so the idea is to calm the rear end. Make sure it doesn't oversteer, ever. This is because all of the accident protection, seat belts, airbags, crumple zone etc are designed for hitting things with the front of the car. Hence they want it to understeer always, rather than oversteering and hitting stuff with the side of the car where there is substantially less occupant protection.

What we (racers) want is toe out when the chassis is at normal rake or nose down (as when braking for a corner), to destabilise the rear, so that it turns in appropriately. Then, as we power on (lift the nose, squat the rear), a lessening of the toe out is not a bad thing.

Cheers
Gary