I've got a strange 12-bolt coming in tomorrow, and my BMR adjustable torque arm and tranny crossmember with the torque arm mount are already here. I have two questions that would really help me set this up this weekend.

What is an ideal pinion ange for a street/strip car? (i've already got BMR control arms, relo brackets, and panhard bar)

What torque arm mounting holes do you recommend using on the crossmember? With both being adjustable i have the option of adjusting the pinion ange with either the mounting holes or the adjustment in the torque arm itself.

BTW my car is lowered 1.5 inches

thanks for any help

kevin

 

I would set the angle with the adjustment in the arm itself, the other way would be very difficult to dial in correctly. I just tightended the crossmember joints as tight as possible to avoid movement and then used the rod end adjustments to change the angle. I have mine at about 2 degrees and doesn't vibrate too bad, although you do get a good bit of vibration on the highway, which i expected switching to poly urethane bushings.

 

adjusting with the TA is the plan, but i need some where to start as far as what hole out of the 8 or so to mount the front of the torque arm. I'm gonna email BMR but i was hoping someone had personal experience with mounting holes and its relation to pinion angle. thanks

kevin