Turbo whine.......question
Turbo whine.......question I just set up a 427ci twin turbo 67mm. Why is it that I cannot here the turbos whining?
I have even had the rpms to 4000...no whine........not even reading boost on my Eboost2
Please help
Tom Ulrich
I have even had the rpms to 4000...no whine........not even reading boost on my Eboost2
Please help
Tom Ulrich
Are you just reving the engine or actually putting it under load? Just reving it up with no load, you're not gonna hear the turbos spinning up, but you should be able to feel air come out of the BOVs.
Ryan
Ryan
FormerVendor
Joined: Dec 2001
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From: WWW.SPEEDINC.COM
Well the layout of the setup and the specs on the exhaust and all other components (and driving condition) have influence on how pronounced turbo noise will be.
Was the 4000 rpm under load? You may allready know this but you could be at a sustained 7000rpm and the turbos will build no boost unless the engine is under a load.
Was the 4000 rpm under load? You may allready know this but you could be at a sustained 7000rpm and the turbos will build no boost unless the engine is under a load.
Originally Posted by Ryan K
Are you just reving the engine or actually putting it under load? Just reving it up with no load, you're not gonna hear the turbos spinning up, but you should be able to feel air come out of the BOVs.
Ryan
Ryan
But I would guess that under load they will make a lot more noise, it also helps if you have full exhaust on the car instead of open DPs
you can hear mine at idle and you can really hear them going down the road. but, I have no muffs. muffs kill 95% of the turbine sound. some hear the compressor whine, but mine is all turbine. 
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Originally Posted by sr71
you can hear mine at idle and you can really hear them going down the road. but, I have no muffs. muffs kill 95% of the turbine sound. some hear the compressor whine, but mine is all turbine.
Originally Posted by bboyferal
Very true... I run a Loudmouth, so that's almost like no mufflers... It's cool to hear them out the back and not have to floor your car.
I know exactly what you're talking about when turbo whine comes out the exhaust and reflects off of walls... But you have sidepipes facing the walls? Holy S*** that must sound AWESOME. 
TECH Fanatic
Joined: Jul 2002
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From: MI
Originally Posted by bboyferal
Very true... I run a Loudmouth, so that's almost like no mufflers... It's cool to hear them out the back and not have to floor your car.
Now when the cutouts are open (pointed out to the sides), you can really hear the whistle!
