So it's tax time and I want a little more power in my 9. It was tune with 93 on 25psi making 315whp so here are my parts..
3in pipping
3.5 in ic

Ported Mani hotside and 02 housing 3in tbe

It holds 25 like a dream so now what I want to do

Gsc s2 cams
Super tech spring retainer kit
Apr head studs

Now I wanna run e85 so I'm confused on why injectors to get.. I'm thinking around the 1200 range, and my tune now is 11.0 flat all away across

So I'm looking for 450ish hp think I can achieve this and what am I missing.. I think my turbo will hold 28ish lbs so isk I need some help here


Thanks for any help and sorry for the typing I'm typin on a I phone

 

Upping the sizse of the ic pipeing isn't a good idea. Stick with whatever the kit comes with. But rereading if you have already done it oh well my bad. Yes injector wise 1150s, 1250s should be enough. With what you have added so far you should be in pretty good shape. E85 will make a huge difference and make sure you have a good tune to go along with your new stuff and you should be in pretty good shape.

 

What turbo? The 9? If so you probably won't make 450 to the wheels..

 

Yeah already have the ic pipping bought it with the car but i should be good with te psi and the parts I wanna run? Think around 450hp?

 

Evo9 turbo with ported hotside, my buddy made 505 wheel on Fp green I think

 

I have just reg 2.5 but upgraded turbo and I'm in the mid 500s. From everything I have read larger ic pipe will hurt things some. Idk seems like everything I read has been changed time and time again. As Hiner said said it will be a stretch. A fp green is a totally different story. A good tune and proper mods I can see 500.

 

Yeah stm did a good tune on a buddies g1 dsm I'm 4 hours from them and 4 hours from ivy so the tune should be good

 

My ic pipping might be 2.5 it's the igen

 

Big difference between 2.5 and 3.5 hahaha.

 

it depends on turbo size on what your IC pipes should be, usually you match your pipe sizes on the hot size to the same size as the discharge of the turbo. but it is ok to run a larger cold side pipe again this depends on the size of turbo but anything under persay a GT30 i wouldnt worry about it. ill be doing a 2.5 hotside 3inch cold side with a 4inch thick ETS core.

 

There was a thread on Buschurs forums way back a few years ago and they tested this. They went 3 inch 3.5 inch 4 inch ic pipes and all the larger ic diameters didn't do as well with a larger platform turbo. My ef4 is way larger then an 30r turbo and honestly I wouldn't go that route I would just keep what I have now.

 

https://www.evolutionm.net/forums/sa...c-s2-more.html

consider this ?

 

key words there my friend is tests were done "way back a few years ago" . A 3.5 and 4inch incooler pipes are also WAY huge unless you have a 1200+whp car IMO and even then its questionable. You also have to factor in atleast for you cold side charge pipe is the intercoolers core efficency and pressure drop.