XRAY - Model racing cars

what is the effect of raising the rear suspension arms

do you mean changing the roll center position?

if the arm is in lower position - car gets overally more traction but push more on power (recommended for low traction)

if the arm is in upper position - car has very high cornering speed but has less traction (recommended for high traction)

Hi MArtin

Thanks for the advice

I think I'll raise my rear roll centre by lifting up the wishbones from 0.0 to +0.75

The reason is that my car has overall understeer on an indoor carpet track that has very high traction.

Thanks for your kind advice

Lohan