Pinion angle?
01-16-2004, 04:22 PM
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Pinion angle? What pinion angle should I go with on a street driven M6. I don't run at the track so I really don't want it too extreme. I was thinking about -1. Does that sound right with my setup. I also have the LCA relocation brackets, Spohn TQ arm, BMR springs (1" lowered), and Bilstein shocks on the way and will be installing all at once. 
01-17-2004, 03:51 PM
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The pinion angle wants to match the transmission tail angle.
On a torque arm (and any non-parallelogram link setup) the
pinion angle changes with ride height / compression /rebound.
You would like zero angle difference at normal cruise. Need
to measure the trans angle with the vehicle on the wheels,
and then adjust pinion angle to {whatever that is}.
Most angle gauges are gravity gauges so vehicle rake, springs
etc. will affect absolute angles. Go by relative angle difference.
On a torque arm (and any non-parallelogram link setup) the
pinion angle changes with ride height / compression /rebound.
You would like zero angle difference at normal cruise. Need
to measure the trans angle with the vehicle on the wheels,
and then adjust pinion angle to {whatever that is}.
Most angle gauges are gravity gauges so vehicle rake, springs
etc. will affect absolute angles. Go by relative angle difference.
