jut installed my adjustable BMR torque arm and i would like some instructions on finding pinion angle?
also the car has to be on teh ground to do this or even with teh rear end loaded?

i have two sets of holes on teh torque arm where it hooks to the rear....which should i use for teh stock 10 bolt or does it matter?

i used teh ones that are on the inide towards teh differential
thanks bobby

 

You need an angle finder. With the weight of the car on the rear tires or axle, measure the angle of the driveshaft. Then measure the angle of the torque arm's mounting plate on the rear axle. If they are the same angle, the pinion angle is 0 degrees. From 0 as you turn the torque arm adjusters to lower the pinion you are going into negative pinion angle. Spohn recommends -1 for stock or lightly modified cars and -2 for highly modified cars.

 

ok ill make sure i go recheck my pinion angle tomarrow after work.

as for where the pinion bracket and the rear end connect should i have used the inner or outter holes??

 

For drag racing, yes. On the street or track, a pinion angle of zero always worked better for me, and you typically aren't launching the car in those environments where you'd expect the pinion to bend upward.

Dave

 

I have to move mine like 5 degrees to get it to where it should be. But i can't turn the adjuster enough to do it. Should i jsut take it off and adjust it more before i put it back up or what?

Also, what will happen if i do a weeks worth of driving with it in the wrong position? The rear end is slanted upwards. is this bad? Or will it just effect my launching and what not.