GR Yaris Geo fast road help and track set up

[Michael Knight]

after two days on track would like to increase front camber to 3'25. any problems with tire wear on street with such setup for front axle? Rear axle appears to be fine. Could test setting rear toe to zero but car is quite active in braking (espec when brakes get hotter) so not maybe want to go that route if car is used on road.

 

[micsub]

after two days on track would like to increase front camber to 3'25. any problems with tire wear on street with such setup for front axle? Rear axle appears to be fine. Could test setting rear toe to zero but car is quite active in braking (espec when brakes get hotter) so not maybe want to go that route if car is used on road.

Do you mean -3.25° (-3° and 1/4) or -3°25' (nearly 3° and 1/2) ? For track OK, but maaaybe a bit too much for road use.
I would say for road & track (if you track often) -3° camber on the fronts is the max. If more road and seldon track, then increase camber to -2.7°. If mainly road, -2.5° camber is the sweet spot I think. (Tyres permitting).
Stock caster and toe zero. Rear : camber -2° and toe in 0.05° (3') on each side. She get's very lively with those toe settings in the rear.
She rolls into the tight curves progressively, much less understeer, (which is still there if you brake too late and hard and turn in at the same time however). In that case it's necessary to increase rear tyre pressures starting equal to fronts, then increase a little above fronts. Toe zero in the rear I have never tried, I have the feeling she will be quite unstable at high speeds with bumpy roads... Maybe for track it can be OK ?