exhaust pipe size

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Jan 13, 2007 | 10:27 AM

alx

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From: Astrakhan city no

exhaust pipe size

Hello.What minimum exhaust pipe diameter is o kay for 377 supercharged LT-1 550 hp ?

Jan 13, 2007 | 11:48 AM

AKS Racing

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From: Houston TX

1 3/4" primary size should be fine.

Jan 13, 2007 | 02:20 PM

alx

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From: Astrakhan city no

You meen exhaust pipe which is going to the muffler ?But my headers have 3" diameter.You meen that I can reuse stock exhaust system?

Jan 13, 2007 | 04:59 PM

BAM92

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From: Houston Texas

I would atleast replace center resonator with a x pipe. You could also replace rear mufflers with higher flowing ones. Just my opinion as others here know alot more than me.

Jan 14, 2007 | 02:20 AM

alx

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From: Astrakhan city no

You meen that pipes are o kay? What shall I do with resonator?I need to weld two pipes in this place?

Jan 14, 2007 | 03:06 AM

street brawler

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Quote:

Originally Posted by alx

Hello.What minimum exhaust pipe diameter is o kay for 377 supercharged LT-1 550 hp ?

that much power the stock exhaust pipe size is to small ,you need a duel 3 inch exhaust with hi flow cats if you got to have them ,i run my car with duel 3 inch and no cats just flowmasters 3 chamber delta flows and i just got the custom exhaust made with mandrel bends it sounds sweet ,and i think aks was talking about header tubing size

Jan 15, 2007 | 02:36 AM

gcrouse

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From: Chandler AZ

Yes, you definitely want a true dual exhaust! Biggest restriction is the cats; bolt up a couple 3" Random or Carsound parts directly to the3" header collector. Then a nice X-pipe right after the cats- make a great place for a forward hanger too.

Next most restrictive is the muffler; you do not want chambered or anything else that makes exhaust gasses do 180 degree acrobatics. I personally used 2-3/4" pipes- as they were easier to fit and still completely outflow the 3" cats. If you get too big, velocity goes away and can hurt low end torque- especially as the gases cool travelling down a long pipe.

If you're interested or need ideas, check out the "Exhaust" pictures on my CorvetteForum homepage...
-George