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Thread: Fluttering?
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Old 07-29-2016, 07:03 AM   #10
Join Date: Nov 2005
Location: MI
Posts: 10,075
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Originally Posted by turbojohnny View Post
well?? how'd it go?
I found kind of thin fender washers, put in two, it made the car laggy and I still had flutter.

I went and bought a gold 15-23 psi spring and will give that a try.

I did some boost logs and make a healthy 17.2psi in 2-3rd and 17.8 psi in 4th. It tapers a bit as expected at 6k, its more like 15ish.

Originally Posted by g96nt View Post
You're fighting an up-hill battle if you have it installed incorrectly.
do you have it so the pressure from the vacuum hose is pushing the piston against the pressure of the charge-pipe?

(also, you won't need a heavy spring)
It's installed correctly. Again, I have had 0-issues, this flutter popped up after the added boost of the 18T install.

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