2.5 piping

A

alanep70

Member +
Just got my ep70 running with a 4efte inside.I have a 2.5 piping for the down pipe and the intercooler piping and is still using the CT9 turbo. Is this setup to big for the CT9. Can anyone tell me how much boost i would loss!:drive:
 
Franza1

Franza1

Supermoderator & Area Reps Manager
Nope should be fine. usual recomdation is between 2 1/4 and 2 1/2 inch piping, it's a good compromise between N/A responce ( befour the turbo spools ) and letting the car perform at higher revs
 
V

VQ'ed

Member +
i dont agree! not to bash but i downgraded from 2.5 to 2 inch and it feels a lot stronger. never gonna put 2.5inch again.

2inch from turbo to intercooler inlet. A thing to note: i kept 2.5 inch after the cooler to the throttle.

best results so far.
I use a much bigger turbo : a t28/t25 hybrid.
 
V

VQ'ed

Member +
Depends if you want to keep the stock manifold or changing to a "better one"

my future upgrade : a GT2554R at 14pounds!!!!! WHOA!!!

p/s i already have a custom t25 flanged exhaust manifold...

OR....

go with the td04 kit from speedvision (it has a lot of important stuff coming with the kit.) if the kit had been available by the time i decided to upgrade, i would get that kit.
 
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