Is 2.5" true dual piping enough for a 402"?
05-11-2011, 01:48 AM
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Is 2.5" true dual piping enough for a 402"? I have Kooks 1 7/8 stepped to 2" headers no cats.
I'm having a shop make true dials off of the Flowtech 3" X-pipe using a pair of Spiral Flows most likely.
Would I have enough flow with 2.5" piping after the X or should I bite the bullet, get the PHB relocation bracket, and run 3" piping?
I don't wanna run 3" piping just for 3" sake if it's overkill.
Thanks in advance!
I'm having a shop make true dials off of the Flowtech 3" X-pipe using a pair of Spiral Flows most likely.
Would I have enough flow with 2.5" piping after the X or should I bite the bullet, get the PHB relocation bracket, and run 3" piping?
I don't wanna run 3" piping just for 3" sake if it's overkill.
Thanks in advance!
05-11-2011, 07:58 AM
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No way would I build a 400+ c.i. motor and put dual 2 1/2 piping behind it. Will it cost you some hp? Absolutely. How much? Hard to say exactly. But I wouldn't leave 1 hp on the table because of piping size.
