Pinion Angle - UMI torque arm HELP
04-13-2007, 09:46 PM
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Pinion Angle - UMI torque arm HELP Ok guys, I took my torque arm off today to change a few things and ended up messing up my pinion angle. I tried to set it back but it doesn't feel right driving, lots of vibrations. It felt perfect before and I set it to -3.5 as per UMI's instructions over the phone. But for the life of me I can't remember how to do it. I thought I had it set right but here, I drew some rough sketchs in MSPAINT. Do I have this right if I want it at -3.5 or am I way off? I need to get this fixed tomorrow if it's off because the track is open tomorrow night and I don't want to screw up my new $400 driveshaft. This is an M6.
I took my measurements on the crank pulley and then on the torque arm mount on the rear end. I have the UMI tunnel mounted adjustable torque arm, and a moser 9" rear end.
Those are the current settings that don't really feel right. Is this -3.5 or +3.5? The pinion angle finder doesn't indicate negative or positive on either side
I took my measurements on the crank pulley and then on the torque arm mount on the rear end. I have the UMI tunnel mounted adjustable torque arm, and a moser 9" rear end.
Those are the current settings that don't really feel right. Is this -3.5 or +3.5? The pinion angle finder doesn't indicate negative or positive on either side
04-13-2007, 10:37 PM
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Ok after some searchin I found this on carcraft which is exactly what I wanted. So I do have it at -3.5 so I need to change my angle a bit so it is less harsh. I'll post this up just in case anyone else has this issue.
04-14-2007, 02:04 PM
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Originally Posted by WS6.Jay
Ok guys, I took my torque arm off today to change a few things and ended up messing up my pinion angle. I tried to set it back but it doesn't feel right driving, lots of vibrations. It felt perfect before and I set it to -3.5 as per UMI's instructions over the phone. But for the life of me I can't remember how to do it. I thought I had it set right but here, I drew some rough sketchs in MSPAINT. Do I have this right if I want it at -3.5 or am I way off? I need to get this fixed tomorrow if it's off because the track is open tomorrow night and I don't want to screw up my new $400 driveshaft. This is an M6.
I took my measurements on the crank pulley and then on the torque arm mount on the rear end. I have the UMI tunnel mounted adjustable torque arm, and a moser 9" rear end.
Those are the current settings that don't really feel right. Is this -3.5 or +3.5? The pinion angle finder doesn't indicate negative or positive on either side
I took my measurements on the crank pulley and then on the torque arm mount on the rear end. I have the UMI tunnel mounted adjustable torque arm, and a moser 9" rear end.
Those are the current settings that don't really feel right. Is this -3.5 or +3.5? The pinion angle finder doesn't indicate negative or positive on either side
