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Will the N/A catback bolt up to the turbo exhaust, or vice versa?

I'm trying to find out if I can use my car to make and fit a turbo catback...
Old 08-25-2004, 11:02 AM
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If you mean bolt on with the stock flanges etc .......... no

If you mean hack and weld it on and make it fit ..... sure
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Old 08-25-2004, 01:51 PM
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does it run the same routing?
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Old 08-25-2004, 02:39 PM
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I think so. But why put a NA exhaust on a turbo?? From what I have read the bigger exhaust on a turbo car the better. Turbo cars dont need the back pressure there for gain from bigger exhaust, quick spool more flow all around better. NA cars need the back pressure, So you can only go so big.
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Old 08-25-2004, 08:43 PM
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Quote:
Originally posted by Makenzie71
does it run the same routing?
Pretty much the same routing..... but not a bolt on.
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Old 08-25-2004, 08:46 PM
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I know it's not going to bolt on directly due to tubing size differences (something figered out today) but I can make something that'll fit "close enough" with a slip-flange to bolt it up. And I can use my car to test fit it.
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Old 08-25-2004, 08:50 PM
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N/A cars dont NEED backpressure..heck any kind of backpressure is bad...thats an old hot rodders myth from way back..i forget what book proved it wrong though. What you need is a free flowing exhaust, with minimum pipe diameter..a 2.25 inch exhaust would do well on a 2.5L, provided that you had the right smooth bends and uniform piping and straight through, free flowing mufflers.
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Old 08-25-2004, 09:46 PM
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Quote:
Originally posted by bluebullet
N/A cars dont NEED backpressure..heck any kind of backpressure is bad...thats an old hot rodders myth from way back..i forget what book proved it wrong though. What you need is a free flowing exhaust, with minimum pipe diameter..a 2.25 inch exhaust would do well on a 2.5L, provided that you had the right smooth bends and uniform piping and straight through, free flowing mufflers.

yes...and no. The biggest thing to think about here is how exactly you define "backpressure". By it's original definition, it's needed to aid in scavenging, which is what a tuned exhaust does...by it's popularly believed definition, it's not needed and should be dealt away with. The whole backpressure think is moot anyways...merely a tunnig factor...what people should concern themselves with is "velocity" and "volume"...you want to move a high volume of gas in a minimal amount of time, which needs velocity. Velocity is ma...

ummm...I'm starting a new thread...
Old 08-25-2004, 09:54 PM
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