Question - Twin Or Single Exit Exhaust For Most Power? - Civinfo
 
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post #1 of 15 (permalink) Old 13th April 2013, 20:03 Thread Starter
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Question - Twin Or Single Exit Exhaust For Most Power?

Have read pros and cons for each twin and single exhausts with regards to power, but which is really better?

Thanks again.
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post #2 of 15 (permalink) Old 13th April 2013, 20:15
 
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single exit its best.. nothing pros for a single! better flow and lighter weight
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post #3 of 15 (permalink) Old 13th April 2013, 21:53
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single exit its best.. nothing pros for a single! better flow and lighter weight
exactly this - the only downside to some people is they prefer the look of the dual exit.
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post #4 of 15 (permalink) Old 13th April 2013, 21:55
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exactly this - the only downside to some people is they prefer the look of the dual exit.
This. I would take the looks of smoke coming out of two exits > 1/2 bhp gain...
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post #5 of 15 (permalink) Old 13th April 2013, 23:18
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single exit its best.. nothing pros for a single! better flow and lighter weight
Isnt the only downside exactly absolute flow since it depends on the diameter?
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post #6 of 15 (permalink) Old 13th April 2013, 23:20
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Single is better, Twin = turbulence in the back box
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post #7 of 15 (permalink) Old 14th April 2013, 01:10
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Single is better, Twin = turbulence in the back box
^this


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post #8 of 15 (permalink) Old 14th April 2013, 11:10 Thread Starter
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Somewhere read that twin opening up early into two exits - into a larger diameter was good for reducing pressure in the system.

Think that was probably rubbish now.

Surely the only time you can see smoke out the exits is when car cold / in winter, or if something is wrong?
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post #9 of 15 (permalink) Old 14th April 2013, 11:12 Thread Starter
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Have seen cars with twin exhaust cold start and only smoke out of one side, must be a bad design for that to happen.

Does the FN2 do this?
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post #10 of 15 (permalink) Old 14th April 2013, 11:13
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Have seen cars with twin exhaust cold start and only smoke out of one side, must be a bad design for that to happen.

Does the FN2 do this?
No. Not mine.
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post #11 of 15 (permalink) Old 14th April 2013, 11:13
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no
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post #12 of 15 (permalink) Old 14th April 2013, 12:11
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Mines 'Smokes' out both exhausts when it's cold. Love the fact that when I switch off the car it still keeps smoking lol
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post #13 of 15 (permalink) Old 14th April 2013, 20:31
 
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How much difference in power is between twin vs. single?

lets say on some basic mods (flashpro, airbox, rrc, header)
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post #14 of 15 (permalink) Old 14th April 2013, 20:32
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2-3 bhp id imagine

Plus a weight saving
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post #15 of 15 (permalink) Old 14th April 2013, 21:39 Thread Starter
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Prob going for tegiwa single exit after this thread, even if it doesn't sound quite as good as others.
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