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Exhaust butterfly valve..

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Old Feb 10, 2007, 11:37 AM
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Exhaust butterfly valve..
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Old Feb 10, 2007, 12:10 PM
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exhaust dump?
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Old Feb 10, 2007, 12:41 PM
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Loud... ER ?
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Old Feb 10, 2007, 12:46 PM
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Old Feb 10, 2007, 12:49 PM
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Um...where's the dump pipe?
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Old Feb 10, 2007, 12:50 PM
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Maybe I'm just crazy but there is no dump, its literally a buttefly valve like the one infront of our throttle cable, what the heck is it used for?

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Old Feb 10, 2007, 01:03 PM
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Originally Posted by thaigleshmk
Loud... ER ?
No quite the opposite far as I've been told.

Its noise dampening up to 3k rpms then they should open up fully.
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Old Feb 10, 2007, 01:48 PM
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interesting...
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Old Feb 10, 2007, 02:50 PM
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I've seen them. They are supposed to keep the exhaust quiet with the valve closed if you live in a area where cops will harrass you for it. Then you can open it up when you need/want the power.
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Old Feb 10, 2007, 02:51 PM
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thats a bad idea... if you close it too much then youll have no exhaust flow... and somethings gonna give...
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Old Feb 10, 2007, 03:00 PM
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if i go wot with my dump closed a get a little knock. especially on meth.. it must be open or somethigns going to screw up...

i think this is a big gamble...


is that the race ready unit from jegs? i remember reccomending it. but i havent seen mine in a loooooooong time.. since i installed lol

cheers!
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Old Feb 10, 2007, 04:31 PM
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very stupid idea
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Old Feb 10, 2007, 04:43 PM
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dont some of the super cars have this??
like lambos and farries
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Old Feb 10, 2007, 04:51 PM
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Probably not too stupid if the inner flow diameter is at least 2.25" while closed. Will provide a pretty good reduction in sound without causing severe consequences. Hey, if super cars have them, then why not. I just wouldnt go full throttle with it closed.
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Old Feb 10, 2007, 05:33 PM
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Ferrari's and Lambo's don't have turbos......... How would a butterfly valve still provide 2.25 inches of exhaust when closed????/

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