S2K_BUILT

Anyone ever fully ported the oem manifold ? I recently did mine and was just wondering if there was anyone else that have done this and what kind of gains did they make ? currently at 225 on my ap1 and hoping to make close to 235-240 with new ported manifold and larger throttle body.

s2000Junky

Cant say i've seen anyone post doing a full port on the oem, just the typical mouth to port match with larger TB. Let us know what you make on the dyno

umair

I have one on my car but its on a turbo application. Not sure if it will make a difference on an all motor car. I do not have a dyno but with the porting and 74mm throttle body the car is much more responsive.

flanders

What size TB are you using OP? Please share your dyno results.

S2K_BUILT

noodels

Flow benched, if not, may have made it worse, oem is very good anyway,yes port matching,but with a flow corrected IM could have extended the chamber also as you have gone into tig welding ect.
could gain mid / high with no start point will never know with your own specific engine.
Anyway you could have cleaned that weld up in the first picture

S2K_BUILT

noodels

My IAT sensor moved to intake pipe made a butt change, until I got used to it.all adds up end of day.