Yo guys and gals! I read in a rotary performance book something about port matching the intake runners, and it saying that some are actually off by as much as 30*..... Im thinkng of airflow here, I'm trying to crank every last bit of power out of my N/A and Im trying to get airflow as efficient as possible.

Anybody care to shed some light on the matter? I'm not even sure which ports they are matching and to what?

 

i've had port matched n/a manifolds. you'd be better off with an s5 VDI swap if you ask me

 

http://www.yawpower.com/Flow%20Testing.html
I know it says 12A, but I'm sure something similar applies to all motors. Just a little food for thought. I can't even pretend to know enough about the subject to understand why, but it's something I'd be cautious of.

 

just send it out to get extrude honed, that will take off all the casting marks...and empty your wallet. extrude honing>porting

 

With Arghx on this one, Albert.

B

 

Thanks for the input! Now to look for s5 intakes....