I have two Van Diemen FF’s. An ‘81 and ‘82. Front suspensions are nearly identical rocker arms except for the upright steering arm angles.
’81 has rear conventional A arms, outboard coil overs.
’82 has rear rockers with inboard coil overs.
’81 Ackerman is basically neutral.
’82 stock Ackerman is distinctly negative, anti-Ackerman. The 82 car steering arm has been modified to allow positive, neutral and negative settings. The car has been auto crossed and came to me with positive Ackerman. I assume to allow better low speed turn in.
Question: why is a road race car set up with negative, anti-Ackerman?