Suspension and Chassis Questions about your suspension? Need chassis advice?

BMR Torque Arm

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Old Apr 29, 2012 | 10:50 AM
  #1  
yaj15's Avatar
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From: Northern California - Bay Area
Car: 1988 IROC-Z
Engine: L98 - full intake & exhaust boltons
Transmission: Bowtie 700r4, 2400 rpm stall
Axle/Gears: Borg-Warner 9bolt, 3.45 gears, posi
BMR Torque Arm

http://www.bmrsuspension.com/?page=p...&productid=398

Hey guys,

I'm thinking of getting this torque arm from BMR for my car. My suspension is all stock. I am going to rebuilt the suspension over the summer with all new bushings and shocks.

The only other suspension mods I have made to my car are hotchkiss sub-frame connectors, lower control arms, and panhard bar.

What kind of difference does the torque are make in terms of performance?
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Old Apr 29, 2012 | 11:29 AM
  #2  
//<86TA>\\'s Avatar
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From: Central NJ
Car: 86 Trans Am
Engine: 408 stroker sbc
Transmission: TKO600
Axle/Gears: Moser full floater m9, 3:70 trutrac
Re: BMR Torque Arm

It will.eliminate any deflection in the arm itself and the poly.bushing will do the same. The major benifit to the aftermarket arms is being able to.set the proper.pinion angle, which requires the arm to be adjustable. Honestly I see no worthwile benifit in an arm with not available adjusmnet. Get an adjustable one, or leave it stock. Make sure the steering, shocks struts.and.tires are in good working order before anything else, you will see the most benifit there.
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Old Apr 29, 2012 | 11:32 AM
  #3  
yaj15's Avatar
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From: Northern California - Bay Area
Car: 1988 IROC-Z
Engine: L98 - full intake & exhaust boltons
Transmission: Bowtie 700r4, 2400 rpm stall
Axle/Gears: Borg-Warner 9bolt, 3.45 gears, posi
Re: BMR Torque Arm

Thanks for the advise. Yeah I'll plan to upgrade the bushings and stocks first. Thank for clearing that up. I was concerned about the not-adjustable torque arm with setting the pinion angle correctly.
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Old May 8, 2012 | 12:53 PM
  #4  
Tony V's Avatar
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From: California, MD
Car: 88 Camaro
Engine: 383
Transmission: T5
Axle/Gears: Moser 9 inch/4.11 TruTrac
Re: BMR Torque Arm

Just a heads up. I have the adjustable BMR torque arm on my 88. It's mounted to a Moser 9 inch and it hits the floor. With a factory 10 bolt you may or may not have this issue.

Might have to get your BFH ready...
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Old May 8, 2012 | 07:43 PM
  #5  
yaj15's Avatar
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From: Northern California - Bay Area
Car: 1988 IROC-Z
Engine: L98 - full intake & exhaust boltons
Transmission: Bowtie 700r4, 2400 rpm stall
Axle/Gears: Borg-Warner 9bolt, 3.45 gears, posi
Re: BMR Torque Arm

Thanks for the heads up. I am running the stock borg warner 9-bolt rear in my car. I've looked around at other companies and many of them have special notes about what to do with their set up.

I haven't decided which torque arm to get just yet. I still plan to upgrade my suspension with just all new bushings and bilstein shocks & struts. Maybe I should keep my stock torque arm and upgrade the bushing from rubber to poly.

Originally Posted by Tony V
Just a heads up. I have the adjustable BMR torque arm on my 88. It's mounted to a Moser 9 inch and it hits the floor. With a factory 10 bolt you may or may not have this issue.

Might have to get your BFH ready...
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Old May 8, 2012 | 08:28 PM
  #6  
//<86TA>\\'s Avatar
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From: Central NJ
Car: 86 Trans Am
Engine: 408 stroker sbc
Transmission: TKO600
Axle/Gears: Moser full floater m9, 3:70 trutrac
Re: BMR Torque Arm

Originally Posted by Tony V
Just a heads up. I have the adjustable BMR torque arm on my 88. It's mounted to a Moser 9 inch and it hits the floor. With a factory 10 bolt you may or may not have this issue.

Might have to get your BFH ready...
The aftermarket axle causes this problem. With stock axles, most if not all aftermarket torque arms should clear the floor.

No need for a BFH, things wil clearance themselves if needed
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Old May 9, 2012 | 09:22 AM
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From: Shakopee, Mn
Car: 89 Iroc
Engine: 305TPI
Transmission: T5
Re: BMR Torque Arm

Depending on what you are doing with your car, I would recommend getting a torque arm that does not mount to your tail shaft.
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Old May 9, 2012 | 10:34 AM
  #8  
yaj15's Avatar
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From: Northern California - Bay Area
Car: 1988 IROC-Z
Engine: L98 - full intake & exhaust boltons
Transmission: Bowtie 700r4, 2400 rpm stall
Axle/Gears: Borg-Warner 9bolt, 3.45 gears, posi
Re: BMR Torque Arm

Originally Posted by Drkhrse89
Depending on what you are doing with your car, I would recommend getting a torque arm that does not mount to your tail shaft.
When will that become a problem? My car is all stock with the L98 and full exhaust. Even though I have a stock car the L98 still produces a good amount of torque.

If I had a car that had head, intake, and cam upgrades would that be an issue? At some point I want to do those mods but I want to set up my car to be able to take that abuse.
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Old May 9, 2012 | 01:31 PM
  #9  
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Re: BMR Torque Arm

We just installed a UMI in our SuperCamaro. It works nicely.

http://www.umiperformance.com/catalo...dex&cPath=6_93
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