Setup
Front
shocks, 35wt oil, pro4 2005 spec shock piston (3 hole piston), gold spring
0.5mm spacers under pivot blocks, 0 degree toe block, 0.5 degree total toe out.
4 degree castor
5mm ride height
standard shock position on lower arm, second hole from bottom on shock tower.(for shock mounting position)
3mm spacer under inner camber link in standard position.
Ackermann, all standard
6mm droop
standard wheelbase
2005 spec wheel hexes (narrower)
Rear
shocks, 35wt oil, pro4 2005 spec shock piston (3 hole piston), silver spring
1mm spacers under pivot blocks, 2 degree toe block, 3 degrees total toe in with alloy "inbuilt 1 degree toe in" hubs.
5.5mm ride height
3rd hole from bottom on shock tower, standard position on lower arm (shock mounting positions)
5mm droop
2mm spacer under inner camberlink, standard position
standard wheelbase
2005 spec wheel hexes (narrower)
This setup was reccommended to me by HPI.
I tried it with brand new tyres and it still understeered. I put a 2.5 degree toe block on the front along with silver springs on the front shocks and my laptimes changed less than a 1/10 of a second and it still understeer.
Any suggestions? I think it may be to do with something else with car. How are other people setting the built in servo saver? I tightened mine up some more past the instruction manuals settings and have installed a 2005 Spec pro4 diff to see if that helps.