how do i set the pinion angle on bmr torque arm?
04-24-2005, 05:08 PM
#1
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Join Date: May 2003
Location: US
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how do i set the pinion angle on bmr torque arm?
i have an bmr adjustable torque arm. it came with a guage to adjust the pinion angle. i want to adjust it negative one degree, do i put it 1 to to the right of the zero or to the left, when it is magneticallly held upside down on the torque arm? thanks
04-25-2005, 10:32 AM
#3
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Location: Birmingham, Al
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Re: how do i set the pinion angle on bmr torque arm?
From BMR's website
Support vehicle under rear axle to load the suspension for pinion angle adjustment. Once suspension is loaded, attach the provided angle finder on the bottom of the rear end torque arm mounting plate and record the reading. Now place the angle finder on the driveshaft and record the reading. Subtract one angle from the other, this is your pinion angle. This angle is considered negative when the pinion points downward. It is best to start with 0 degrees pinion angle and adjust accordingly based on the cars launch characteristics and parts combination. As a rule of thumb, most automatics typically respond best to a -1 to -2 degree pinion angle while manual equipped cars respond best to a -2 to -3 degree pinion angle.
Support vehicle under rear axle to load the suspension for pinion angle adjustment. Once suspension is loaded, attach the provided angle finder on the bottom of the rear end torque arm mounting plate and record the reading. Now place the angle finder on the driveshaft and record the reading. Subtract one angle from the other, this is your pinion angle. This angle is considered negative when the pinion points downward. It is best to start with 0 degrees pinion angle and adjust accordingly based on the cars launch characteristics and parts combination. As a rule of thumb, most automatics typically respond best to a -1 to -2 degree pinion angle while manual equipped cars respond best to a -2 to -3 degree pinion angle.
04-26-2005, 02:17 PM
#6
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Join Date: Dec 2003
Location: NY...what a bad place for a nice car
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Re: how do i set the pinion angle on bmr torque arm?
Originally Posted by Bud M
You just need to have the weight of the car on the rear axle, it doesn't matter if the front end is on the ground.
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