Loud whistle with new exhaust

Submitted: Saturday, Nov 26, 2005 at 14:38

ThreadID: 28393 Views:3924 Replies:4 FollowUps:0

This Thread has been Archived

SteveA

Hi every one,
hoping that some of you might be able to help with my problem, I have just put a 3" mandrel bent exhaust on my 91 80 series turbo(my god does it make a difference, should have done it 3 yrs ago) but have a loud whistle when putting petal to metal. The guys at Beaudesert exhaust were great and pulled the front pipe off and fired up the engine and revved the engine and there it was coming straight out from the manifold. The noise was there prior

Any body out there got any suggestions!

Thanks
Steve

Back Expand Un-Read 0 Moderator Share

Reply By: Member - Ed. C.- Saturday, Nov 26, 2005 at 15:41

Saturday, Nov 26, 2005 at 15:41

Sounds like your typical "turbo whistle".... (some are more noticeable than others)..
Obviously the bigger exhaust has allowed the turbo to spin up more freely, and now ya got yerself a whistle:-))

Take the muffler off.....

(then ya won't hear the whistle;-))

Confucius say.....
"He who lie underneath automobile with tool in hand,
....Not necessarily mechanic!!"

Member
My Profile Send Message

AnswerID: 141119

Reply By: snow - Saturday, Nov 26, 2005 at 22:22

Saturday, Nov 26, 2005 at 22:22

Yah, the whistle in my 2.4 is very noticeable with similar set up

AnswerID: 141162

Reply By: Member - Trevor R (QLD) - Sunday, Nov 27, 2005 at 22:21

Sunday, Nov 27, 2005 at 22:21

Steve,

I recently developed a loud turbo whistle after refitting my intercooler pipes. Upon investigation via some turbo specialists, it was explained to me that my pipes were acting like organ pipes. Different lengths and diameters will cause different noise emissions, maybe this is something similar to what is happening in your case but only in the exhaust ???

Regards Trevor.

AnswerID: 141247

Reply By: SteveA - Sunday, Nov 27, 2005 at 22:37

Sunday, Nov 27, 2005 at 22:37

I've just read my question asked of you all and I stuffed up when I said that the noise was there prior sorry it wasn't there prior to the new exhaust fitted but the whistle doesn't sound lilke the turbo spinning up.
I think I will turn the radio up a little louder!!!!
thanks
Steve

AnswerID: 141249