Intermittant shutter/shake

[slowAWDTSi]

Ive got a 90 AWD eagle talon with 138k on the clock and it recently started to shake around 2-3k when accelerating or decelerating with the clutch engaged(downshifting) it seems to come and go . I got a custom 2.5" exhaust fromt he turbo to just infront of the rear diff and it dumps down (yea i know gonna sufficate) I started to realize it when I put my backseats back in (helps kill the noise) I was thinking it might have been doing it all along but i didnt hear or nitice it because of the loud exhaust.
On a side note Mods that may be causing the prob:
Built motor wiseco 9:1, eagle rods, no balance shafts, custom supa 20g , 2g mas, greddy e-manage, old ragged stock trans (5sp), tires might be more worn in the back than in the front, stock flywheel , Euro-Drive clutch system,
thanks
Dru

 

[luv2rallye]

Just a wild guess but did you replace the braided strap on the exhaust? It is a ground for the O2 sensor which the ecu needs to control mixture.

 

[flinguist]

What's a Euro-drive clutch system?

 

[flinguist]

Originally posted by flinguist
What's a Euro-drive clutch system?

Nevermind, I found there website: http://www.euro-drive.com/performance.htm. What exact clutch set up of theirs do you have?

 

[slowAWDTSi]

Ground strap? never had one but thats not the problem.
The Euro Drive I got is the 4 puck disc with spring center and one side of it is ceramic and the other side is Fiber Tuff , (fiber tuff is their own material that is not as sticky as ceramic) i put half and half to give it a little slip if i launch hard. I also have the increased clamping force pressure plate. Its not the best thing in the world but it dosen slip at all the press plate is like 100 bux and the disc ranges from 100-150 depending on what material u want, im gonna go kevlar next
dru

 

[slowAWDTSi]

Im such a dope. I found out the shutter at 2-3k while clutch is ingaged. Three of the tranny bolts had backed out and only one of the bolts were holding it on doh!
So i tightened them up and its all good now.
Thanks 4 the help
Dru