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Old 05-15-2008, 08:05 AM   #1 (permalink)
syquest15
New Member/Lurker
 
From: saint paul, Minnesota
Region: Midwest
Registered: May 2008
Posts: 9
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benefits of a custom exhaust manifold?

I havent seen much on the specific topic im looking to cover here.

I was wondering, with the obvious availability to engineer your own customer piping for the turbo exhaust manifold, with the tubo in mind, but also uniqueness, what is the best way to efficiently run that turbo while still have 4 tubes running for the manifold ( as opposed to a cast iron block ).

I have seen many things that make me wonder the benefits of each, like one guy on here as his looping up then back down, looks sweet as hell but I wonder if the engine has to work harder for that?

I have also seen people who have their turbos running 2/4 exhaust ports instead of like the cast iron manifold, which is more efficient for the turbo?

Would it be conceiveable to route 1 or 2 of the exhaust tubes in a recirculation sort of manner, thus increasing the flow on the turbo? I would think but increasing the diameter of the manifold piping ( from oem specs ) would make it so this could be possible and not make the engine work harder.

Would like feedback!

Just guaging how interested I really am as custom engineering myself a manifold. Ive seen a few different types.
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