Briscoe

I've noticed a vibration during acceleration around 3 to5 thousand rpm. I have the saleen supercharger and I love it, but this little vibration is kind of annoying. Also I don't really notice it as bad if I accelerate at a slower pace, but it is still there. sometimes seems worse than others (less noticeable when cold).

hammeron

could one of the pulleys be
slightly misaligned

maybe one of the pulleys has some extra
play, that shouldn't be there

moosestang

Are you sure it's not the blower hitting the firewall?

AmericanMuscle4.6GT

or the hoodliner?

MustangGT0405

Are you sure it is the S/C?

What about driveshaft, rear end, balancer, etc. Many things can cause vibration. Try and narrow it down first.

drbobvs

+1!

AmericanMuscle4.6GT

i think if it was a problem with a pulley, you'd get slippage under WOT (of the pulley)........any issues with that?

Briscoe

I checked the blower hitting the firewall and it is close, but no sighn that thier touching. blower does touch the hood liner, evident by rubbed off paint on blower. I'm sure the noise is from under the hood. Also I checked the exhaust and it seems to be tight. Thanks for the help