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Old 10-30-2013, 09:07 PM   #29
grocerygetter
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So U telling me I need to try headers and a full 3"? Lol . Killin me smalls.
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Old 10-30-2013, 09:40 PM   #30
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So U telling me I need to try headers and a full 3"? Lol . Killin me smalls.
Hell yeah! If you're doing headers for 10 hp and sound, then you might as well throw a 3" on there too!
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Old 10-30-2013, 10:57 PM   #31
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I think headers are a stretch enough. I like my no drone 2.5" set up.
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2014 GMC CC Z71, 2009 C6 vette (672/639 at the wheel and less than 3300lbs)
2010 Camaro 2ss/rs---SOLD 4/15/14
-654whp with a few cosmetic things, Pfadt suspension, Vortech, CircleD, GPI ss3 vvt bump stick, gears, stuff in between,18" TSW N'rings for drag duty, 20" Forgestar F14s for street.

Thanks to:
Tony@ dv8motoring
rhino@ Gwatney Chevrolet/GPI Jacksonville AR
TCAudio in Benton AR
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Old 10-30-2013, 11:18 PM   #32
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Yeah mine drones horrible.
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Old 10-31-2013, 03:58 PM   #33
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So U telling me I need to try headers and a full 3"? Lol . Killin me smalls.
YES YOU DO.

I know a certain african land animal that thinks so too.
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Old 10-31-2013, 09:00 PM   #34
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Geez. Gonna have to have Fields build me something though ... These catback prices are outrageous.
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2014 GMC CC Z71, 2009 C6 vette (672/639 at the wheel and less than 3300lbs)
2010 Camaro 2ss/rs---SOLD 4/15/14
-654whp with a few cosmetic things, Pfadt suspension, Vortech, CircleD, GPI ss3 vvt bump stick, gears, stuff in between,18" TSW N'rings for drag duty, 20" Forgestar F14s for street.

Thanks to:
Tony@ dv8motoring
rhino@ Gwatney Chevrolet/GPI Jacksonville AR
TCAudio in Benton AR
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Old 10-31-2013, 10:16 PM   #35
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Jba
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Old 11-01-2013, 04:58 PM   #36
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Originally Posted by jcmG8 View Post
the magic number is 2.2cfm /HP. Any more flow is a waste of money.

Here is a decent unbiased article with science behind exhaust system design
Good link...thing for others to keep in mind on a street car that runs full exhaust is that the gasses are cooling/shrinking as they travel farther away from the engine, so it can maintain velocity in a necked down exhaust as long as the mufflers aren't becoming a restriction creating back pressure which would rob power potential.
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Old 11-01-2013, 05:13 PM   #37
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I just ordered a full 3" catback for my car
Can't wait for it to arrive
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Old 11-01-2013, 06:45 PM   #38
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I just ordered a full 3" catback for my car
Can't wait for it to arrive
Thanks for the order! You'll have to post up a sound clip and let us know how you like it!

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Tyler
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Old 11-01-2013, 09:34 PM   #39
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Geez. Gonna have to have Fields build me something though ... These catback prices are outrageous.
Dynomax makes a 3in version of their VT muffler.
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Old 11-01-2013, 10:01 PM   #40
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I made 483rwhp with my mods and have long tube headers into high flow cats and Borla 2.5" S-type exhaust. I posted the details on my thread "My Night Fury cam install". (I would link to it but don't know how). If you want to make power on an NA motor, you have to at least put headers on, the stock cats (2 on each side) are a fine mesh and will definitely cost you power.
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Old 11-01-2013, 10:39 PM   #41
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Originally Posted by Steve@SNLPerformance View Post
Good link...thing for others to keep in mind on a street car that runs full exhaust is that the gasses are cooling/shrinking as they travel farther away from the engine, so it can maintain velocity in a necked down exhaust as long as the mufflers aren't becoming a restriction creating back pressure which would rob power potential.
our stock mufflers are not a restriction are they? Just the cats correct?
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Old 11-02-2013, 06:49 AM   #42
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our stock mufflers are not a restriction are they? Just the cats correct?
That is correct sir.
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