Quote:
Originally Posted by FireSale
Pinion angle and Caltracs has always confused me. A negative pinion angle is meant to negate axle/spring wrap under hard load, but the purpose of Caltracs is to prevent that. If you have a negative 4 degree pinion angle with Caltracs, it will remain negative 4 under load with the exception of the dime thickness racers leave as slack up front.
If I'm right, pinion angle is the relationship between the centerline of the crankshaft and the centerline of the pinion gear. It should be 0 (parallel) under load. A "nose down" pinion could wrap up to parallel with stock suspension but not with Caltracks.
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Deflection at the drop is being accounted for. Down, with the damper fixed to the back side of the rearend gets the shaft of the damper exiting the main body of the shock/damper, which is correct also.