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.

 

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

 

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.

 

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

 

 

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

 

 

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