will the way it is adjusted affect your 60ft ?

 

it should , by changing the pinion angle you should be able to gain some traction and get rid of any unwanted vibration that you may or may not have.

I bought a BMR adjustable Torque arm but I havent installed it yet

 

No. Your adjustable BMR torque arm has nothing to do with my 60ft time.

Sorry, I couldn't help myself.

 

Under hard acceleration your pinion gear wants to "climb up" the ring gear, thus changing the angle of the rear end. This can promote wheel hop, not planting your tires firmly on the ground for the best traction. This change of angle also causes increased drivetrain losses, as it increases the angle between the pinion gear and the driveshaft (U-joint angle). An adjustable torque arm allows you to preset a negative pinion angle (front of the different points slightly down) so that when the drivetrain is loaded under hard acceleration, the differential rises to the optimum angle for traction and power.