Port or Not to Port?

[purplehazetsi]

ok i was thinking og buying an Evo exhaust manifold, but i was goin to buy it non ported and port it my self! if i was to port it do i only port the end were it connects to the turbo? or do they also port the were the runners connect to the head? please help

 

[CBgst]

I just ported mine at the collector. I'm not sure how it's done by professionals but I've never seen anything about the runners. Just make sure they match the head if anything.

 

[purplehazetsi]

did you feel a difference?

 

[gotwood?]

im told you can definetly hear the difference (being turbo spooling louder)

-tj

 

[98talonAWD]

i ported my exaust manifold( at the collector), turbo exaust housing, and 02 housing.... and my brother was on the side of the road down on a local street we cruise on and he said that he could hear my turbo before he actually saw me!!! and YES>>> porting makes a big difference... especially top end. by the way... i am only running a 14b turbo, soo it's not like i ahve a rediclous turbo on it to make it louder.

kinda gives you a idea of how loud it is. Hope it helped

TIM

 

[X|Crescens]

So how much are you supposed to port? How do you know when you have ported to much and what did you use to port these things?