Welcome to the North American Subaru Impreza Owners Club Tuesday May 5, 2015
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Here you can view your subscribed threads, work with private messages and edit your profile and preferences Home Registration is free! Visit the NASIOC Store NASIOC Rules Search Find other members Frequently Asked Questions Calendar Archive NASIOC Upgrade Garage Logout
Go Back   NASIOC > NASIOC Technical > Factory 2.5L Turbo Powertrain (EJ Series Factory 2.5L Turbo)

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.
* Registered users of the site do not see these ads.
Reply
 
Thread Tools Display Modes
Old 12-19-2013, 05:06 PM   #1
CBninja
Scooby Newbie
 
Member#: 349054
Join Date: Mar 2013
Default Newbi with a couple of question on the next round of mods

How's it going everyone. I'm pretty new here, but I have been doing my best on searching topics so I think I have an idea on my next round of mods for my car, I just wanted to run it by some people that have more knowledge about the cars.

First little incite on the car.
Its an 04 STI with a rebuilt motor.

It has "high compression" forged pistons (8.8 to 1)
STI rods, crank and I believe upgraded bearings.
STI rebuilt clutch
Stock fueling
Front mount intercooler
4'' down pipe to a full three inch catless exhaust
ported 16g turbo tuned to 19.5 psi


Well like every car guy I want more power and this is what I've come up with.

GT35R turbo
ID 1000s
Walbaro 255
I'm thinking a clutch as well but I don't know.
Retune by a shop
Goal is to make as much horsepower that is feasible.


Am I missing anything? Any advice anyone can give will be greatly appreciated.
* Registered users of the site do not see these ads.

Last edited by CBninja; 12-19-2013 at 05:20 PM.
CBninja is offline   Reply With Quote
Old 12-19-2013, 05:12 PM   #2
Leafy
Scooby Specialist
 
Member#: 330625
Join Date: Aug 2012
Chapter/Region: NESIC
Location: MA
Vehicle:
2006 WRX
WRB

Default

PSI isnt a goal. You could make 25psi on your 16g.
Leafy is offline   Reply With Quote
Old 12-19-2013, 11:48 PM   #3
All4bSpinnin
Scooby Guru
 
Member#: 99102
Join Date: Oct 2005
Chapter/Region: South East
Location: Jax, FL
Vehicle:
08 Corvette Z06
problem Traction?

Default

Well those are big dreams for a 35R car.

Along with supporting fuel, you'll need a better clutch, maf and intercooler.

Imo, a big turbo doesnt necessarily mean that your car will be faster on the street. Sure it makes more power but area under the curve counts for a lot.

My old stage 2+ (full bolt-on) 07 sti on 100oct would walk the dog on a 35r's sti up to 120mph.

If I was in your position, I would knock out any bolt ons you dont already have... Equal length header, larger injectors, pump, TGV deletes, inlet and a tune then go to E85. If youre still bored, go with a clean rotated setup and a good tune.
All4bSpinnin is offline   Reply With Quote
Old 12-20-2013, 07:52 AM   #4
CBninja
Scooby Newbie
 
Member#: 349054
Join Date: Mar 2013
Default

Well e85 is pretty much out of the question because there are not any stations in a 100 mile radius that sell if. I have an upgraded intercooler already. The only bolt ons left to buy are equal left header and an up pipe I have everything else. What exactly is a rotated setup?
CBninja is offline   Reply With Quote
Old 12-20-2013, 09:02 AM   #5
dstroy
Scooby Specialist
 
Member#: 283711
Join Date: May 2011
Chapter/Region: NESIC
Location: Newport
Vehicle:
2012 STI sedan
Black with scratches

Default

Quote:
Originally Posted by CBninja View Post
Well e85 is pretty much out of the question because there are not any stations in a 100 mile radius that sell if. I have an upgraded intercooler already. The only bolt ons left to buy are equal left header and an up pipe I have everything else. What exactly is a rotated setup?
Rotated is just a different up-pipe/downpipe that places the turbo in a position so that the turbo intake isn't routed underneath the intake manifold.
dstroy is offline   Reply With Quote
Old 12-31-2013, 09:12 PM   #6
All4bSpinnin
Scooby Guru
 
Member#: 99102
Join Date: Oct 2005
Chapter/Region: South East
Location: Jax, FL
Vehicle:
08 Corvette Z06
problem Traction?

Default

all of the "big power" subarus run a rotated uppipe/downpipe setup so they can run a standard non subaru flanged turbo.
All4bSpinnin is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -4. The time now is 02:44 PM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2015 Axivo Inc.
Copyright ©1999 - 2014, North American Subaru Impreza Owners Club, Inc.