That was funny.. 
Backpressure
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Race Director
Joined: Apr 2007
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From: long Island NY
Backpressure
Got into a conversation today with a friend on backpressure since he is having work done on his brand new 911 turbo S. He got me thinking, Is there enough backpressure on my car I have a Novi set up, headers, hi-flows into Borla straight pipes.
Team Owner
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From: cookeville tennessee
With the high flow cats you have to have, dont see any way you dont. I just cut my high flow cats out and sold them. Robert
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From: long Island NY
Tech Contributor
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From: Forney Texas
Just being facetious. My way of saying the better our cars breathe with F/I, the better off you are. Not sure if you recall my 2" header and intake upgrade thread, but I picked up tons of power from 4500 up. I don't recall your entire setup, but I'm sure if the race is long enough you will have a good race on your hands.
Melting Slicks
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From: Northern Ireland
Why on earth would you want backpressure ? That's just stupid.
Melting Slicks
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From: Bardstown Kentucky
I guess technically you have "backpressure" when you are in boost. The pressure in the intake is due to air being forced into the engine that it cannot immediately digest and release through the exhaust. With a supercharger you are going to see backpressure no matter what. Most times when you start opening things up its going to relieve some of the pressure (boost levels go down) and the power level rises, its because you have increased the efficiency of the engine.
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From: long Island NY
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From: Cleveland Ohio
Carl
Edit- I'm referring to backpressure created by the turbos. A turbo with a large turbine housing and/or large turbine wheel can dramatically change the powerband. It has more to do with properly sized turbos but its also back pressure and its probably what he was trying to say.
Carl
Last edited by Carlmc1; Jun 24, 2011 at 07:52 PM.
Melting Slicks
Joined: Jul 2004
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From: Northern Ireland
An engine is little different to us. they both consume air and expel it.
Strangling an engines breathing is little different than strangling yourself