so has anyone done a dual exhuast setup on a 5th gen, i have a 91 gts. and i want to do a dual exhaus setup. can anyone direct me in the right direction like can i get headers that go 4-2 or do they have to go 4-1-2???
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dual wont fit goind down the car unless its lower then the car. theres a channel where the exhaust runs down the car and youll never fit two pipes in there. you could spit it by the tail pipe but because of the setup of the car its impossible to get a even flow on the two pipes. meaning the stock location would be moving much more air out then the extra muffler. I did it a long time ago and went back to one muffler it looked good but were not running v-8's it wont help you out performance wise.
Duals would affect flow just like altering the size of a single pipe -- it depends on their combined flow capactiy.
Since the optimum exhaust diametre size for the 5SFE, with its 130 HP and 2164 cc capacity, is 2-2.25", to maintain proper equivalent flow rates on a dual would reduce your individual pipes down to 1.42"-1.6" diametres (combined they yeild the same surface area as a single 2-2.25" pipe). Four pipes would be so tiny it's not even funny, though you could fake it with a dual-outlet muffler.
Plus, rule of thumb is that every 90 degree turn in your exhaust is the equivalent of an additional eight feet of piping. Adding a second branch requires adding another turn, thus forcing half your exhaust to travel the equivalent of another eight feet (see the SRT-4 exhaust for an example, as the Celica would have a similar setup).
Even going with a Y-shape setup, which would require some interesting shaping to get it over and around the various underbody features, would still mean additional piping, and another muffler, easily 15-20 pounds.
In short, it'd add weight, and decrease smooth exhaust flow. This would be a pure looks modification that would harm performance. In short, the very definition of "ricey".
Since the optimum exhaust diametre size for the 5SFE, with its 130 HP and 2164 cc capacity, is 2-2.25", to maintain proper equivalent flow rates on a dual would reduce your individual pipes down to 1.42"-1.6" diametres (combined they yeild the same surface area as a single 2-2.25" pipe). Four pipes would be so tiny it's not even funny, though you could fake it with a dual-outlet muffler.
Plus, rule of thumb is that every 90 degree turn in your exhaust is the equivalent of an additional eight feet of piping. Adding a second branch requires adding another turn, thus forcing half your exhaust to travel the equivalent of another eight feet (see the SRT-4 exhaust for an example, as the Celica would have a similar setup).
Even going with a Y-shape setup, which would require some interesting shaping to get it over and around the various underbody features, would still mean additional piping, and another muffler, easily 15-20 pounds.
In short, it'd add weight, and decrease smooth exhaust flow. This would be a pure looks modification that would harm performance. In short, the very definition of "ricey".
dual exhaust on a 4-cylinder makes absolutely no sense. people who know cars will most definately laugh at you.
he's right, chrysler engineers also admit that dual exhausts on inline engines, whether 4 or 6 cylinders, are a "waste of time and money." the only reason the srt4 has dual exhausts are because of auto-maker marketing techniques. dual exhausts look cool, so all the misinformed consumers (which there are many, case proven in this thread) will buy these COOL CARS!
i would almost call that at 6-?-2-1 header
naturally there will be exceptions to every case, but like you said in your earlier post, smaller engines, turbo'd or na, single exhaust is functionally lovable.
srt4 engineers : i trust the experts
Let me word this so I don't have someone jumping down my throat in a second.
Problems I have with this whole dual exhaust thing.
- It seems that the extra bends in your exhaust (for the second set of pipes) would cause extra restriction in the system.
- Added weight of a second section of piping.
- Cost of fabricating 2 exhaust manifolds (for your uber NA supras) seems like it would cost you an arm and a leg.
- The headaches bending out the pipes for the second side is going to cause you or whoever you pay to do this.
Geez, this shouldn't really be a debate anymore. When it comes to your celica, leave it as a single and call it a day.
Problems I have with this whole dual exhaust thing.
- It seems that the extra bends in your exhaust (for the second set of pipes) would cause extra restriction in the system.
- Added weight of a second section of piping.
- Cost of fabricating 2 exhaust manifolds (for your uber NA supras) seems like it would cost you an arm and a leg.
- The headaches bending out the pipes for the second side is going to cause you or whoever you pay to do this.
Geez, this shouldn't really be a debate anymore. When it comes to your celica, leave it as a single and call it a day.
i'm usually about functionality, but there's looks too. i've got my project cars that look the utter crap, but they're fun little things to drive.
but that's me, i say you should go with what makes you happy. if you like the way dual exhausts look, go for it. if you want a wooden wing and a cardboard bodykit, i think you should do it. gives the rest of us something to point and laugh at, you know?
but that's me, i say you should go with what makes you happy. if you like the way dual exhausts look, go for it. if you want a wooden wing and a cardboard bodykit, i think you should do it. gives the rest of us something to point and laugh at, you know?
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