Tunnel Mounted Torque Arms
01-31-2006, 04:35 PM
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Tunnel Mounted Torque Arms I recently installed the UMI Performance tunnel mounted torque arm with the drive shaft loop. I have Jet-Hot longtubes, Hooker ORY, Moser 12 rear. I love the feel of the torque arm, but cannot stand the bad vibrations I get from about 80 mph on up. Also, the clunking noise from just normal driving. The clunking is not there if i ride the clutch a little when I shift. For the vibration, the car feels like it is going to blow up. I have not gone to the track yet, but the way it feels on the street under WOT, I think it's going to rattle my teeth out at the track. Oh yeah I also am running -3 on the pinion angle. Anyone else have this issue with theirs?
Dave
Dave
01-31-2006, 07:06 PM
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i basically had all the same issues as you with the spohn unit... then about after a month of driving they all went away 
. thank god cuz those noises were rough but within a few weeks you get used to it. anyways hope you have the same luck. (oh and i hear you should have it at -2 instead of -3 but i suppose it all depends of amount of driving)
. thank god cuz those noises were rough but within a few weeks you get used to it. anyways hope you have the same luck. (oh and i hear you should have it at -2 instead of -3 but i suppose it all depends of amount of driving)
01-31-2006, 07:12 PM
#3
Dave, I get the same vibrations at around the same MPH with that set-up. I noticed more in 5th gear (M6) then any other gear, I also run mine most of the time at -2.5 to -3. We found after taking some time with adjusting that for the street this item needs to be operated around 0 to -1 degrees. We have found this setting the reduce and eliminate the vibrations. Also for the clunking, torque the front pivot points just a little bit more that should clear it up. After tuning these torque arms in we have been able to make them as streetable as the stock arm.
Hope that helps!
Ryan
Hope that helps!
Ryan
01-31-2006, 07:24 PM
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Originally Posted by UMI Performance
Dave, I get the same vibrations at around the same MPH with that set-up. I noticed more in 5th gear (M6) then any other gear, I also run mine most of the time at -2.5 to -3. We found after taking some time with adjusting that for the street this item needs to be operated around 0 to -1 degrees. We have found this setting the reduce and eliminate the vibrations. Also for the clunking, torque the front pivot points just a little bit more that should clear it up. After tuning these torque arms in we have been able to make them as streetable as the stock arm.
Hope that helps!
Ryan
Hope that helps!
Ryan
01-31-2006, 11:07 PM
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Originally Posted by UMI Performance
Dave, I get the same vibrations at around the same MPH with that set-up. I noticed more in 5th gear (M6) then any other gear, I also run mine most of the time at -2.5 to -3. We found after taking some time with adjusting that for the street this item needs to be operated around 0 to -1 degrees. We have found this setting the reduce and eliminate the vibrations. Also for the clunking, torque the front pivot points just a little bit more that should clear it up. After tuning these torque arms in we have been able to make them as streetable as the stock arm.
Hope that helps!
Ryan
Hope that helps!
Ryan
02-01-2006, 06:38 AM
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Ryan, thanks for the input. As CW00BlackTA stated, are you using the method as stated in your directions? I used the measurement from the bottom of the tranny and then from the bottom of the rear/torque arm bracket. My tranny is zero so I then ste my rear at -3. I am going with Ryans advice and try -1 and retighten the bolts at the tunnel brace more.
Dave
Dave
02-01-2006, 06:29 PM
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i currently have a tunnel mounted t/a from spohn and i also have vibration proplems when i hit 5th & 6th gear, my pinion angle is set -4 for track use and i have a spherical rod end mount which makes the feeling of the vibration even worse, but when under high rpms at the track the vibration gose away.
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02-20-2006, 09:23 PM
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I didn't loose any ground clearance. I'm running a standard (straight) cross member
with Pacesetters and 3 point SFCs. I was worried about everything clearing but it did.
My SFCs hang lower then the TA. UMI has designed an EXCELLENT product.
Hawk
with Pacesetters and 3 point SFCs. I was worried about everything clearing but it did.
My SFCs hang lower then the TA. UMI has designed an EXCELLENT product.
Hawk
Last edited by 227Hawk; 02-21-2006 at 07:51 AM.