exotic sound from exhaust system
06-21-2010, 01:51 PM
#1
exotic sound from exhaust system I have a porsche 944 with a ls6 in it. I have no exhaust system yet and I still have the engine out (so a cam swap is optional). I have stock short block, with patriot stage 2 heads, a torquer v.2 cam, and a FAST 90mm TB and Intake. The headers are custom made with 1.75 primaries to a 3 inch collector. How can I make this sound like a lambo or a high tuned exotic?
06-21-2010, 02:08 PM
#2
LS1Tech Administrator
iTrader: (3)
Join Date: Nov 2001
Location: Schiller Park, IL Member: #317
Posts: 32,251
Likes: 0
Received 1,685 Likes
on
1,207 Posts
IMO, a lopey cammed V8 can't really ever sound like a lambo (nor would I want it to, but that's just me).
Not that many exotics use a V8. If you take a listen to a high end AMG Benz with a V8, even those sound more muscle than exotic to me.
Not that many exotics use a V8. If you take a listen to a high end AMG Benz with a V8, even those sound more muscle than exotic to me.
06-21-2010, 02:23 PM
#5
ls6 won't sound like an exotic, definitely will not with a cam.
You can however look into Corsa or Borla exhaust, these are more of a screaming exhaust as opposed to the usual muscle car with flowmasters on it.
If you want a more quieter exhaust but still enough rumble few away from the car, try to mimic the exhaust on newer v8 cars these days with suitcase mufflers.
You can however look into Corsa or Borla exhaust, these are more of a screaming exhaust as opposed to the usual muscle car with flowmasters on it.
If you want a more quieter exhaust but still enough rumble few away from the car, try to mimic the exhaust on newer v8 cars these days with suitcase mufflers.
06-21-2010, 02:44 PM
#7
LS1Tech Administrator
iTrader: (3)
Join Date: Nov 2001
Location: Schiller Park, IL Member: #317
Posts: 32,251
Likes: 0
Received 1,685 Likes
on
1,207 Posts
Trending Topics
06-21-2010, 03:03 PM
#11
TECH Enthusiast
iTrader: (8)
Join Date: Jun 2008
Location: Stockbridge, MI
Posts: 724
Likes: 0
Received 0 Likes
on
0 Posts
The answer is 180 degree headers. Basically instead of two primaries on each header being fired, all 4 are, so the headers have to cross over the engine in some fashion.
Bottom line, it can be done with an LS engine.
http://www.youtube.com/watch?v=MSZTbR6C6Lwr
Bottom line, it can be done with an LS engine.
http://www.youtube.com/watch?v=MSZTbR6C6Lwr
06-21-2010, 03:23 PM
#15
TECH Enthusiast
iTrader: (8)
Join Date: Jun 2008
Location: Stockbridge, MI
Posts: 724
Likes: 0
Received 0 Likes
on
0 Posts
I think it sounds awesome, but there is no way in hell i would do what it would inevitably take to reproduce that sound on a modern American V8 Car.
06-21-2010, 03:58 PM
#18
Staging Lane
Join Date: Jan 2010
Location: Tennessee
Posts: 54
Likes: 0
Received 0 Likes
on
0 Posts
180* headers is the best (and about the only) way you'll get that "exotic sound" out of an American V8. My LS3 Vette is close with small primary headers and big x-pipe into stock NPP exhaust.
All 180* headers do is mimic the effects of a flat-plane crankshaft without having to entirely rebuild the engine geometry. The L-R-L-R-L-R-L-R pattern at the collectors IS proven to increase the scavenging effect and speed up exhaust flow over the standard L-R-L-L-R-L-R-R pattern of the cross-plane American V8. (The "L-L" and "R-R" is the source of the musclecar "lope")
LS3/L92 headed cars would probably see a benefit from this type of system.
A more expensive, but proper, option would be to have a flat-plane crank cut. But then you're changing the firing order. You'll have to have a matching cam as well, in addition to whatever else may be involved. Good luck with that.
I have an acquaintance from another forum that found one as a leftover from a pro racing program.
All 180* headers do is mimic the effects of a flat-plane crankshaft without having to entirely rebuild the engine geometry. The L-R-L-R-L-R-L-R pattern at the collectors IS proven to increase the scavenging effect and speed up exhaust flow over the standard L-R-L-L-R-L-R-R pattern of the cross-plane American V8. (The "L-L" and "R-R" is the source of the musclecar "lope")
LS3/L92 headed cars would probably see a benefit from this type of system.
A more expensive, but proper, option would be to have a flat-plane crank cut. But then you're changing the firing order. You'll have to have a matching cam as well, in addition to whatever else may be involved. Good luck with that.
I have an acquaintance from another forum that found one as a leftover from a pro racing program.
