What Performance Increases With Porting???
08-13-05, 11:10 AM
#1
What Performance Increases With Porting???
I posted this thread in the 3rd gen specific section.
https://www.rx7club.com/3rd-generation-specific-1993-2002-16/what-performance-increases-porting-453097/
Thanx,
Ken
https://www.rx7club.com/3rd-generation-specific-1993-2002-16/what-performance-increases-porting-453097/
Thanx,
Ken
08-14-05, 11:41 AM
#3
Displacement > Boost
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At least on the NA side of things, a good street port + header is like adding a turbo and upping the boost slightly from stock (FC NA vs. TII). The weight difference between NA cars and TII's might be part of it, but porting is still the best mod for a rotary other than forced induction. With a mild port job on a 6 port engine "which is like polishing a turd" I was in the 14's at 96 mph in 90 degree weather. 
08-14-05, 09:10 PM
#4
Rotary Freak
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you're looking at a 10% gain w/ a mid sized street port. it's worth it only if you're getting a rebuild. if you're getting a reman it's probably not worth it opening it up just to port it, you're better off just upping the boost a couple lbs.
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