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2X HORSEPOWER #38248 Aug 21, 8:22pm Aug 21, 8:22pm
Joined: Aug 2003
Posts: 1,292
Bay Area, NorCal
CaLiGTS OP
Phantom
2001 Toyota Celica
CaLiGTS OP
Phantom
2001 Toyota Celica

Joined: Aug 2003
Posts: 1,292
Bay Area, NorCal
2X HORSEPOWER
Ok .. question for all you hotshot bad ass fellow celica owners... will installing dual exhaust on a GTS double the horsepower gain from that mod in contrast to a single exhaust system? how is the dual exhaust system implimented? what are the benefits of a dual exhaust sytem on the celica ?


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Ask yourself one question. Is the juice worth the squeeze?
Re: 2X HORSEPOWER [Re: CaLiGTS] #38249 Aug 21, 8:24pm Aug 21, 8:24pm
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Grand Rapids, MI
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Actually it will lessen the horsepower. thumbsdown The only benefit from it is the look if you like it. spineyes

Re: 2X HORSEPOWER [Re: CaLiGTS] #38250 Aug 21, 8:25pm Aug 21, 8:25pm
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Grand-Touring-Dan
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no and none

Re: 2X HORSEPOWER [Re: Grand-Touring-Dan] #38251 Aug 21, 8:27pm Aug 21, 8:27pm
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frisco
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yes you lose hp...

Re: 2X HORSEPOWER [Re: CaLiGTS] #38252 Aug 21, 8:33pm Aug 21, 8:33pm
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pennsylvania
IcEd blUe
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IcEd blUe
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no

Re: 2X HORSEPOWER [Re: CaLiGTS] #38253 Aug 21, 9:16pm Aug 21, 9:16pm
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Guam, U.S.A.
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if you have a V8 or V6 engine, its reasonable to have dual setup, we have Inline 4 engines so... you know...


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Re: 2X HORSEPOWER [Re: CaLiGTS] #38254 Aug 21, 9:23pm Aug 21, 9:23pm
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Houston, TX
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Grand-Touring-Dan
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for a better explanation.

A true dual exhaust system will have two individaul exhausts, which includes header, cat, and muffler. Only V6 and up engines can have this because they have 2 banks. We, as inline 4s have one bank which includes only one header. My question to you is...how is all that extra piping and weight going to add hp, let alone twice as much? You still have just one muffler. Hope that helps clear things up. Peaceout

Dan

Re: 2X HORSEPOWER [Re: CaLiGTS] #38255 Aug 22, 5:08am Aug 22, 5:08am
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Lafayette, LA
DiabloGTS
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Dual exhaust looks cool, but you don't need it.

just makes it harder to get the exhaust out of the car!


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This is to have succeeded.
Re: 2X HORSEPOWER [Re: CaLiGTS] #38256 Aug 22, 5:57am Aug 22, 5:57am
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pennsylvania
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get the borla thing,its pretty cool!!

Re: 2X HORSEPOWER [Re: CaLiGTS] #38257 Aug 22, 9:17am Aug 22, 9:17am
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Milford, NJ
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you do not need dual exhaust...


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Re: 2X HORSEPOWER [Re: CaLiGTS] #38258 Aug 22, 9:18am Aug 22, 9:18am
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pennsylvania
IcEd blUe
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yea bit it looks cool if you have a kaminari rear

Re: 2X HORSEPOWER [Re: CaLiGTS] #38259 Aug 22, 9:36am Aug 22, 9:36am
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Ventura, CA
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Dual exhaust looks good, but too little back pressure is bad, you will actually lessen hp.

Re: 2X HORSEPOWER [Re: IcEd blUe] #38260 Aug 22, 10:25am Aug 22, 10:25am
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Milford, NJ
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Originally Posted by IcEd blUe
yea bit it looks cool if you have a kaminari rear


only the first design of the Kaminari rear...tat is not in production anymore.


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Re: 2X HORSEPOWER [Re: MptGlw69] #38261 Aug 22, 11:16pm Aug 22, 11:16pm
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New Orleans, LA
Speed4TheNeed
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it will lessen horsepower. straight through designs USUALLY add the most horepower (obviously this is impossible with a dual exhaust)

Re: 2X HORSEPOWER [Re: Speed4TheNeed] #38262 Aug 22, 11:18pm Aug 22, 11:18pm
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New Orleans, LA
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my lil bro wants the borla exhaust..i dunno what to think about it though. looks like too much work because its not a custom fit.

Re: 2X HORSEPOWER [Re: CaLiGTS] #38263 Aug 23, 7:45pm Aug 23, 7:45pm
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you can actually bend valvles from having so little back pressure with dual exhaust if it didnt already come on your car!


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Re: 2X HORSEPOWER [Re: CaLiGTS] #38264 Aug 23, 11:49pm Aug 23, 11:49pm
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Lisle, IL
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dual exhaust on our cars is not a good idea:

A) less backpressure unless designed properly, a drop in HP too. dual would work well, however, if it was designed to deliver the right amount of backpressure.

B) more muffers/pipe will add weight to the car, one of the goals of aftermarket exhaust is to reduce weight. heavier-slower.

C) you'll have to notch the bumper for the other tip.

Now, duals have two benifits: They sound cool and they look neat. Dual is good for show cars.

What would be best is a Straight-back exhaust. Our exhaust header is cenetered, and our undercarriage open enough to allow it from the cat-back. no bends =less backpressure, but the right muffler will make it work. Perhaps a single-turbine muffler would work best. (The turbine acts like an exhaust brake, and torque would be great. Aside from a straight back exhaust, a slanted muffler-style catback setup would be good too.




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Re: 2X HORSEPOWER [Re: CaLiGTS] #38265 Aug 24, 2:32pm Aug 24, 2:32pm
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Michael Aristide
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Why does everyone seem to think that an engine needs back pressure to perform well?? Backpressure is ALWAYS bad under any circumstance. What you need to do is keep the exhaust stream velocity high. What happens with open exhaust is the flow stagnates because of the bigger diameter so exhaust scavenging is decreased. That said, dual exhaust on anything that doesn't have 2 exhaust banks is all show no go.

Re: 2X HORSEPOWER [Re: CaLiGTS] #38266 Aug 24, 2:35pm Aug 24, 2:35pm
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fort hood texas
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more backpressure is better in cold climates, it helps the engine warm up faster.


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Re: 2X HORSEPOWER [Re: ssgsky] #38267 Aug 24, 2:39pm Aug 24, 2:39pm
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Hmm... never heard that before. Would you care to explain?? I don't see how. And as for what I said, I was speaking in terms of performance. The poster before me spoke on backpressure and tried to tie reduced backpressure to decreased performance.

Re: 2X HORSEPOWER [Re: CaLiGTS] #38268 Aug 24, 2:43pm Aug 24, 2:43pm
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fort hood texas
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ok
ummm think in a diesel, when the glow plugs dont work, you can put a plate over the end of the exhaust, causing backpressure, which also therin raises the compression slighty


10.7157 @ 131.31 on my bike
Re: 2X HORSEPOWER [Re: ssgsky] #38269 Aug 24, 2:59pm Aug 24, 2:59pm
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Michael Aristide
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Gotcha. Makes sense with diesel engines which have amazingly high compression ratio's already, like 20:1 or something like that. thumbsup

Re: 2X HORSEPOWER [Re: CaLiGTS] #38270 Aug 24, 3:05pm Aug 24, 3:05pm
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fort hood texas
ssgsky
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only the big ones, the small ones are less, like the ones in the military HMMWV are like 19:1, but the 5 tons are like 23:1


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