Understeer Oversteer - one for the setup theory gurus

[chrispattinson]

Ooplers, I have a really strange handling problem to resolve. I am running a TRF501X. On a low grip surface (gym hall floor), I need to resolve the following problem:

Off power understeer, on power (breaking traction) oversteer.

When I drive the car into a corner, it will understeer, and I find myself getting on the throttle to kick the back end round. I've been having a think about this, and can't think of any setup theory that will resolve this (my one idea is it being an antisquat issue as it seems the steering is throttle sensitive, however maybe the oversteer is only occuring due to breaking rear traction, - but why doesn't it break frint traction?).

Hopefully some more knowledgable ooplers will have a better idea.

This problem occurs whether running a diff or one way, with different ackerman angles. I am currently running long wheelbase (to try and counter the understeer) and 1deg antisquat.

Thanks in advance for any ideas. Chris P.