502x on carpet - Rear end to loose

[Netmav]

Can anyone help me figure out how to get more traction on the rear end, when running a 502x on carpet?
First of all, I'm new to racing, so I don't have very much experience with this. But I think it must be possible, because I see the B44.1's going around our track with a lot more traction on the rear end..

Here's my setup (at least what I remember now, as I'm at work ):
Ride height at 21mm
Schumacher Mini Spike tyres (with the spikes cut off)
Losi 40wt shock oil and 1.3x2 pistons. Tamiya Blue springs (Front)
Losi 30wt shock oil and 1.4x2 pistons. Tamiya Yellow springs (Rear)
Front toe-out at approx. 1
Rear toe-in at 2
Front camber at -1.5
Rear camber at -1.5
The diffs are both at "medium" tightness

I have the "gold" HL aeration dampers, alu front castor hubs (12 deg) and the rear alu 1 deg uprights on the car as well.

If theres any more info needed, just let me know.

Any help/tips/tircks/suggestions are greatly appreciated.
Thanks.


\Martin