True Dual Exhaust

[pitpens]

If a dual exhaust is really expencise on our cars, What is the next best opption?


[img]graemlins/evilgrin.gif[/img]

[xjarayax]

http://www.laneswheels.com/custom_duals.html

there ya go

sam

[satellite98]

I did a search some time ago and a few people agreed that true dual, at least on the 3.4, sounded terrible and actually lost power. Has anyone else done this, or done this with a 3.8?
I mean, how deep can a 6 cylinder sound with true dual.

[Blue94V6]

From what I've heard it's mostly just a waste for a V6 unless you're moving ALOT of air. Remember that you need some backpressure to give you power off the line.

___________________________
1994 Med. Quasar Blue L32 M5
Eibach Pro Kit, KYB Gas-A-Just shocks, K&N filter

[Dominic]

all the backpressure you need comes from the cats.

[TheBeast]

most of the guys with 8s don't even get 3" true duals because its too much. usually about a 2.5" pipe. so on a 6 i would say 2 1/4" would be good for the duals

[Arctc Wolf]

2 1/4" duals will flow the same as a 3" single. it'll sound deeper maybe cuz of the 2 mufflers and the 2 pipes. make sure u use an x-pipe crossover after the cats so u can balance pressure between the 2 pipes and make optimal hp. also, mke it sound cool by using resonated tips. I love mine. they make is sound really good.

[redbird00]

a friend of mine has the hooker headers to 3" pipe, custom x-pipe, two dynomax super turbo mufflers then turn downs right before the axle on his TA... the exhaust after headers was $515, it sounds badass... and is loud as hell, he saw a gain of 18hp & 14trq at the rear wheels over the hooker headers and slp loudmouth... i want it... hope that helps...

merlin

[jhkcam]

<blockquote>quote:</font><hr>Originally posted by redbird00:
a friend of mine has the hooker headers to 3" pipe, custom x-pipe, two dynomax super turbo mufflers then turn downs right before the axle on his TA... the exhaust after headers was $515, it sounds badass... and is loud as hell, he saw a gain of 18hp & 14trq at the rear wheels over the hooker headers and slp loudmouth... i want it... hope that helps...

merlin<hr></blockquote>

Just a question, how would you get a 18rwhp gain over a loudmouth (with NO muffler) on a v-8. Are you saying 18hp gain with true dual exhaust (w/ mufflers) over loudmouth (w/ no true dual). That i could maybe understand. Just a little unclear.

-Justin

[strobhen]

scavenging is a wonderful thing...

gains are seen from the x-pipe generally, it creates a vacuum effect that sucks air out of the other pipe.

look on v8 sites for more info, don't expect to get a lot of love here.

[ January 17, 2003: Message edited by: strobhen ]</p>

[toast]

True duals can be done but it is not suggested for a N/A v6. I came up with an i dea at work on how i can comstom fabracate true duals on the f-body. If you want your car really loud, true duals are the answer. I belevie an H-pipe will work alot better than an X-pipe.

[TheV6Bird]

<blockquote>quote:</font><hr>Originally posted by redbird00:
a friend of mine has the hooker headers to 3" pipe, custom x-pipe, two dynomax super turbo mufflers then turn downs right before the axle on his TA... the exhaust after headers was $515, it sounds badass... and is loud as hell, he saw a gain of 18hp & 14trq at the rear wheels over the hooker headers and slp loudmouth... i want it... hope that helps...<hr></blockquote>LT1 or LS1? How does it sound at WOT under load? kmook on CamaroZ28.com has true duals on his LT1, and he says it has a higher pitch to it.

[Ruth L S]

<blockquote>quote:</font><hr>Originally posted by toast:
True duals can be done but it is not suggested for a N/A v6. I came up with an i dea at work on how i can comstom fabracate true duals on the f-body. If you want your car really loud, true duals are the answer. I belevie an H-pipe will work alot better than an X-pipe.<hr></blockquote>

That is way wrong! X pipe will ALWAYS produce more power across a powerband than an H pipe. Why? With an H, the exhaust travels through two 90* bends, while an X setup has 45* bends. H pipe is only louder than an X. Not more power.

-R

[V6Maniac]

On the X-pipe vs H-pipe setups I saw a review of both on Stangnet.com and they both produced exactly the same hp/tq. They didn't sound different either. *shrugs* Maybe it's different for f-bodies, I dunno. I'll try and find that link again and post it when I can.

[toast]

<blockquote>quote:</font><hr>Originally posted by Ruth L S:


That is way wrong! X pipe will ALWAYS produce more power across a powerband than an H pipe. Why? With an H, the exhaust travels through two 90* bends, while an X setup has 45* bends. H pipe is only louder than an X. Not more power.

-R<hr></blockquote>

Arggggg, the exhaust does not travel through the 90degree bends, it just goes past them. On an X-pipe the exhaust flow crosses with each other which in turn can cause a restriction espally at WOT. Plus an X-pipe does make the exahust have a higher pich tone then an H-pipe.