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Old 08-20-2013, 01:52 PM   #41 (permalink)
phunk
A True Z Fanatic
 
Join Date: Mar 2009
Location: Chicago
Posts: 3,668
Drives: 370
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Quote:
Originally Posted by Chuck33079 View Post
I'm convinced this is my issue, and it probably occurs at higher rpm as well but the exhaust drowns it out. It is more noticable when the car is warm, and my wild *** guess is that the lube in the tranny is thick enough when the car's cold to quiet it down.
youre absolutely correct, the warmer/thinner the fluid, the more prominent the sound is. when cold starting, you usually dont even hear it.

i dont know the cause of the sound since i have never gone inside these transmissions. since it gets real bad when the dual-mass OEM flywheel is removed, I feel like its a something related to some slack in the trans, perhaps something they leave looser in high performance oriented transmissions to leave room for greater heat expansion or something. lol i have no idea what I am talking about though, I will ask my buddy who builds transmissions. i honestly never focused much attention to them.
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