[speedy2000ls]

i have an ls teg and im building a turbo kit for it. i have a t3turbo and a big IC with 3in inlet and outlets.

what size piping should i use 2in, 2.5in, 3in?

and why?

 

[TheFifthSpeed]

We need to know your goals

 

[speedy2000ls]

im not trying to break a world record or anything im just building a turbo kit and ill upgrade bit by bit later. for now i would like to make at least 220hp on 8psi

 

[TheFifthSpeed]

2.25 would fit you well. You don't want to overdue the size on the ic piping because you will lose flow velocity

 

[speedy2000ls]

even though i have 3in inlets and outlets already?

 

[aalb1]

Sound like the IC is oversized for your goals

 

[duballstar]

i had 2.5 .. then i got 2.5 charge pipe with bov .. and 2.25 other pipes.. works wonders

 

[JeenYus]

i have 2" hot side and 2.25 on cold side. I could probably go a little bigger since ive kicked up the boost. And i agree with aalb1, your IC seems a little big for your goals, but just run a silicon reducer to connect the charge pipes.

 

[speedy2000ls]

thanks for the help!