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Topic Review (Newest First)
07-14-2008 07:26 PM
jimfulco http://www.pirate4x4.com/tech/billav...urbo_specs.pdf is a listing of Dynomax Super Turbo mufflers with horsepower capability data listed for single/dual systems.

Relative loudness is also listed with sport being louder than street.
07-14-2008 09:04 AM
Chevrolet4x4s I have x pipe and thrush glasspacks on my truck, sounds great but not obnoxiously loud ,glasspacks arent broke in yet. Th x pipe gives it a verry good sound.

Shane
07-14-2008 08:22 AM
65 Imp SS Well if you need some more reading material this might help, take a look here http://www.pontiacstreetperformance....p/exhaust.html
07-13-2008 11:15 AM
leejoy wow, my head is spinning now.

thanks for all the tips guys. A lot more information than I expected. Great Job.

It sounds like most of you guys are suggesting an H or X pipe setup. That's fine. I'll educate myself more about it.

Lee
07-13-2008 07:13 AM
454C10 I would run 3" pipe (even though 2.5 would be enough). If you decide on 2.5" (for more ground clearance) then use mandrel bends. A 2.5" system built with mandrel bends will flow like a 3 inch system using crushed pipe.

Make a H or X pipe right after the transmission the use a pair of hooker aero-chambers. If it is too loud, install a pair of 12"x 4" dynomax bullets in line (before the mufflers would be best but after also works).

If you decide you want to quiet and good flow, then install a set of dynomax super turbos.
07-13-2008 12:56 AM
65 Imp SS Here is a site for h.p/c.i. to pipe size http://www.magnaflow.com/07techtips/faq/question10.asp
I run with hookers to 3", flowmaster s pipe, to pypes x, to 3" magnaflow mufflers.
07-12-2008 10:20 PM
onefastchevy X-pipe will help flow and can free up a few ponies. I run warlock mufflers on my 396, they sound incredible, and have knockoffs built in so you can go to straight pipe sound, and performance, in about 1 min!! Easy to set up an electric dump as well (my next project!)
07-12-2008 08:43 PM
ScoTFrenzel A big power boost would be 24-28 inch collectors then 3" H pipe.
If you have room an expansion chamber would be a good move,
then the mufflers of choice for sound. I am a big fan of the Dynomax line and Magnaflow line.
Look into David Vizard's exhaust system design that includes expansion chambers.
07-12-2008 06:33 PM
stroker_SS [QUOTE=leejoy]

I would like some free flowing mufflers that are loud.
QUOTE]

The dynomax bullet would meet both of those standards.
07-12-2008 06:30 PM
stroker_SS
Quote:
Originally Posted by schatzy
I would use a x pipe with 3" and Hooker Aero Chamber mufflers.
+1, not only would it flow great, it would sound so sexy.
07-12-2008 06:19 PM
schatzy I would use a x pipe with 3" and Hooker Aero Chamber mufflers. Nice looking nova by the way!
07-12-2008 06:15 PM
GunnerTHB well for true duals 2 1/2 should be enough...but if you are going to run a y-piped setup you may need somethin around 3 1/4 inch to 3 and a half....pretty uncommon size tho. Magnaflow makes some great flowing mufflers
07-12-2008 07:06 AM
leejoy
Exhaust Pipe Sizing - Help

I have a 1972 chevy nova street muscle car. It needs a new exhaust system. It has a 550 HP Big Block Chevy. The headers have 3-1/2" collectors.

Should I go with an X-pipe type system or just standard dual exhaust or doesnt it matter?

What size exhaust pipes should I use? 2-1/2", 3", 3-1/2"?

I would like some free flowing mufflers that are loud. Can you recommend any particular make or model?

thanks

Lee


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