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Guest Message by DevFuse
 

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Dual exhaust on ej22?


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6 replies to this topic

#1 300td4x4

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Posted 11 March 2005 - 01:39 PM

Has anyone tried dual exhaust on a ej22 or any other subaru flat four for that matter? I would think this would improve performance. Obviously running the two exhaust pipes out the back would present issues.

#2 75skunkaroo

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Posted 11 March 2005 - 02:25 PM

i ran "dual" on my ea-71 for a few days. it was never a complete set up though, just 2" flex pipe that ended at the front of the front doors. it sounded like some old redneck farm truck without exhaust.
i was thinkin about puttin lake pipes on my car lately...

-mike

#3 Skip

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Posted 11 March 2005 - 03:11 PM

This is the wrong forum for EJ22 questions
But I run a dual setup on one of my Brats

The ticket is to put an "X" pipe in
I believe
this allows the scavaging effect to be maintained.

I gained power from down low to about 6k
I run Weber DGEV 32/36 on this engine
Posted Image

This is what my setup looks like

#4 MilesFox

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Posted 11 March 2005 - 04:44 PM

refer to this post, there is an example of a dual exhaust there as well, demonstrating an x-over as skip mentions, and some exhaust theory
http://www.ultimates...ht=dual exhaust

#5 300td4x4

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Posted 11 March 2005 - 04:59 PM

So 2 pipes all the way out the back would be bad? How about an H pipe instead of an X pipe?

#6 MilesFox

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Posted 11 March 2005 - 05:07 PM

yeah that would work too, whichever would be easiest to fabricate, as long as you keep the theory in mind with your design

#7 archemitis

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Posted 11 March 2005 - 06:00 PM

true duals dont seem to work well at all. i tried all kinds of dual exhaust, as well as morganm. baffles, no baffles, cherry bombs, it seems like if its not x or h piped over it will run like crap, and sound like an airplane.

but if you want it just to sound cool, those things sound like v8s with a hole just behind the first cat =] low deep rumble.




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