Grave dig
So what do people want from their GT4/Alltracs in terms of handling?
For my car i have always been chasing front end grip on the track, the understeer has always been horrendous.
I kept changing little bits at a time to remove it, and thus far everything has worked, it was progressively getting rid of the understeer.
However at my last track day i got the shock of HUGE oversteer on corner entry and mid corner, once the power was on the AWD did its work and settled it right down.
My setup (as best i know)
Front:
7kg/mm front spring (390lb/in)
-1*45" camber
1*56" caster (yes more)
0mm toe
poly bushes on the front end (minus swaybar oddly enough)
235/40/17 tyres on 17x8+35 wheels
Rear:
4.5kg/mm springs (250lb/in)
-0*45" camber
2mm toe in
Whiteline swaybar on full stiff (too much, have since put it to the middle)
poly bushes on the inner end of the control arms
stock diff mount
stock bushes for control arms (not for lack of trying, couldn't get them undone!)
235/40/17 tyres on 17x8+10 wheels (effectively, 25mm spacer each side)
Additional info:
No meaningful weight reduction at all, battery still in stock location.
I have a custom undertray on the front of the car, extremely doubt it makes a difference to lift/downforce on the front however.
The caster was achieved by rotating camber adjustable strut tops.
I have camber bolts on all 4 corners to get the camber spot on.
The oversteer was insane, it was waaayyyy too much, hence i have softened the rear swaybar.
My apex speeds were some 5-10km/h quicker than the previous setup, could get on the throttle harder and earlier.
I finally managed to get oversteer, so now i am going the opposite way and trying to gain some rear end grip.
After that, i need more power!