header noise
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Postmaster
Joined: Dec 2003
Posts: 3,130
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From: Massachusetts
header noise
I installed the banks power pack this past weekend. I hear a wooshing sound under acceleration. It is not the intake and seems to be coming from the headers. Almost positive there is no leak. I am guessing that it is the exhaust gas moving through the headers. Going from heavy cast iron manifolds to thinner stainless steel most likely making the wooshing sound. It does not do it al idle or reving the engine while in park. Just under load. Anybody have this sound coming from thier headers?
Mountain Pass
Joined: Jan 2003
Posts: 161
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Originally Posted by boxcar1974
Anybody have this sound coming from thier headers?
I would expect yours to sound different with the headers. I've done it a few times in the past with V8s, and they do change the tone. I can't put the difference into words, but "swooshing" is not a word I would use to describe it. Maybe, I don't know.
You would probably recognize a leak, though, and it should do it all the time (even at idle) if it's leaking. I've heard header leaks at the head that sounded a lot like a rod knocking, but most of the time it's just pulsating escaping air.
Did you <I>feel</I> a difference with the headers?
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Postmaster
Joined: Dec 2003
Posts: 3,130
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From: Massachusetts
I do feel a difference with headers. The engine is much free-er. At high way speeds it is very noticible. Going from 50 to 70 quickly with out downshifting is great.
I have had three mechanics listen to the headers and they all so no leak. So I will have to just listen to it. It is not raelly annoying, but you can hear it and it is different.
I have had three mechanics listen to the headers and they all so no leak. So I will have to just listen to it. It is not raelly annoying, but you can hear it and it is different.
Elder User
Joined: Dec 2003
Posts: 807
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From: Idaho
My Borla headers make the engine sound 'weird'. I think it's from the v-10 being different than a v-8. The 10 sounded different stock. The extra cylinders make the exhaust pulses sound almost like an electric motor. I can't knock the power, though.
