Welcome to the North American Subaru Impreza Owners Club Tuesday July 22, 2014
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

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 05-18-2008, 03:06 PM   #51
dexterous
Scooby Guru
 
Member#: 23553
Join Date: Aug 2002
Chapter/Region: MAIC
Location: Slippery Rock, PA
Vehicle:
2005 STI - Insanity!
2014 WRX - Daily

Default

Quote:
Originally Posted by sluflyer06 View Post
I don't agree with that statement completely...stock tmic..no. GOOD (Turboxs or Spearco) yes.

Maybe with the Spearco. The TXS TMIC is a Chinese made POS. I have helped three different friends build cars with TXS TMICs and all three have had issues such as pinholes in welds, warped flanges, etc.
* Registered users of the site do not see these ads.
dexterous is offline   Reply With Quote
Old 05-18-2008, 03:13 PM   #52
Davenow
Scooby Guru
 
Member#: 23676
Join Date: Aug 2002
Chapter/Region: NESIC
Location: de_dust and Orgrimar
Vehicle:
.

Default

Quote:
Originally Posted by MumblinAviator View Post
I've heard that many times during my search, and I realize this type of work gets very addictive, but going much bigger than that will eventually require internals which is going much deeper than I want to go. Not only that, but going larger than the 20g/equivalent will probably increase lag a bit which is getting away from what I'd like.

I appreciate the responses!
(this is in reference to the post which you responded to here)
that is exactly why I didnt bother with the GT30R for my setup. I bought the 30R, but then before I put it in, I read for the 50th time that most GT30r people want a 35R within 2 weeks.

SO I said screw it and go the 35R.



I will tell you this much

Blouch TD05-20G 8cm
TurboXS TMIC
Meth injection
tuned to 22PSI
Gruppe-s header
aps 65mm cai
44mm EWG
catless tbe (I am defiant autospeed, look at my setup above)

I got bored with the power. And making it a TD06 and adding a FMIC wouldnt have been nearly enough.

With the fact that greens are laggy IMHO, and dont make that much more than a well set up 20G, it wouldnt have been enough either. Rotated was the only choice that would give me enough to make me happy.


Combine the FMIC, GT35R, EWG, Meth and $3000 worth of headwork that is going into the car, which will put down closer to 500whp on 93 pump+meth, I should be satisfied for a few months
Davenow is offline   Reply With Quote
Old 05-18-2008, 03:14 PM   #53
Davenow
Scooby Guru
 
Member#: 23676
Join Date: Aug 2002
Chapter/Region: NESIC
Location: de_dust and Orgrimar
Vehicle:
.

Default

BTW, for the record, any 20G car making 400whp or more without headwork or meth, got those results from a high reading dyno.

With meth, a 20G can hit 400whp, but it still takes a semi optimistic dyno.
Davenow is offline   Reply With Quote
Old 05-18-2008, 03:57 PM   #54
MumblinAviator
Scooby Newbie
 
Member#: 143327
Join Date: Mar 2007
Location: Oak Harbor
Vehicle:
04 STi
JBP

Default

Quote:
Originally Posted by Davenow View Post
BTW, for the record, any 20G car making 400whp or more without headwork or meth, got those results from a high reading dyno.

With meth, a 20G can hit 400whp, but it still takes a semi optimistic dyno.

I agree completely. This thread has done a great job showing the ranges of power one could acheive with each setup AND the type of dyno. Most seemed to be in the 350-390 range.

RE: GT35R - the idea of 500whp on this car scares the outta me, as well as spending that sort of money on getting there.

That's the majority of my problem at the moment. I'm sure I can save and safely spend enough to support a 20g with meth down the road and I believe that'll keep me happy for quite some time. I know that I CANNOT spend enough (right now) to support a rotated kit or equivalent.
MumblinAviator is offline   Reply With Quote
Old 05-18-2008, 04:09 PM   #55
zeropsi
*** Banned ***
 
Member#: 175453
Join Date: Mar 2008
Chapter/Region: MWSOC
Location: wilCO, IL
Vehicle:
AE86 GT-S coupe
i <3 alqonquin homosauce

Default

Quote:
Originally Posted by Davenow View Post
BTW, for the record, any 20G car making 400whp or more without headwork or meth, got those results from a high reading dyno.

With meth, a 20G can hit 400whp, but it still takes a semi optimistic dyno.
I've read extensively about your experience with 18G's and 20G's, and it has greatly helped to shape my view so far and encouraged me to do more successful research.

That said, what is your opinion on the FP Green and Dom 3?
zeropsi is offline   Reply With Quote
Old 05-18-2008, 04:21 PM   #56
RyeLou
Scooby Newbie
 
Member#: 179113
Join Date: May 2008
Location: Troy, MI
Vehicle:
05 Evo

Default

Quote:
Originally Posted by zer0psi View Post
Intercooler?
As of right now I plan on leaving the stock STi TMIC in place. I just got the car, and my plan is to not go with everything all at once. I'll use what I've already planned on for the rest of this year, then next spring change around a few more things. No need to do everything within weeks of getting the car...I would be bored with it too soon and I don't want to have to build the engine. With my current build plans it still gives me room to grow without changing turbos (again) yet.

I'm not trying to be the fastest or the highest HP. I want a fun and quick daily driver with good spool and a safe tune. That's what my list is based off of...not beating any of you. All of you should be proud of your numbers, but I probably won't even bother posting mine when I get them...they don't mean too much to me.
RyeLou is offline   Reply With Quote
Old 05-18-2008, 04:22 PM   #57
MumblinAviator
Scooby Newbie
 
Member#: 143327
Join Date: Mar 2007
Location: Oak Harbor
Vehicle:
04 STi
JBP

Default

Quote:
Originally Posted by dexterous View Post
Many people actually think that the DOM 3 spools FASTER than most TD06H 20G turbos. I have a friend who is building a car identical to my car except that he has a DOM3. He is getting tuned by the same person on the same dyno so it should be very interesting. I will post the results in a month or so.
That'd be a fantastic side by side comparison! Don't forget about me or the thread when it happens

So you're trying to tell me that 401/365 wasn't enough for you HaHaa let's face it... it's a neverending quest for more speed that is only rivaled by the amount of dollar-dollar-bills needed.
MumblinAviator is offline   Reply With Quote
Old 05-18-2008, 04:25 PM   #58
RyeLou
Scooby Newbie
 
Member#: 179113
Join Date: May 2008
Location: Troy, MI
Vehicle:
05 Evo

Default

Quote:
Originally Posted by zer0psi View Post
That said, what is your opinion on the FP Green and Dom 3?
Why limit yourself to an off the shelf turbo? Call one of the vendors on here or call around your area and find someone who builds them. I have a friend who does just that and I'm going through him. It's an FP Green based turbo, but it will spool slightly quicker and make more power up top. Not a lot...but noticeable if you were to drive mine after a similarly modified regular FP green car.
RyeLou is offline   Reply With Quote
Old 05-18-2008, 04:27 PM   #59
MumblinAviator
Scooby Newbie
 
Member#: 143327
Join Date: Mar 2007
Location: Oak Harbor
Vehicle:
04 STi
JBP

Default

Quote:
Originally Posted by RyeLou View Post

I'm not trying to be the fastest or the highest HP. I want a fun and quick daily driver with good spool and a safe tune. That's what my list is based off of...not beating any of you. All of you should be proud of your numbers, but I probably won't even bother posting mine when I get them...they don't mean too much to me.
Welcome to the thread...

You basically repeated everything that's been circling around my head for the past few months. Numbers are a great benchmark that might give someone an idea as to what the car would feel like or how it would perform, but the ultimate test is your own personal Butt-Dyno, and how big of a smile you have after WOT. If someone is happy with a 145hp front wheel drive, fantastic. I won't be the one to try and squash their fun... which is of course, what this is all about.

With that said, post your numbers anyway!
MumblinAviator is offline   Reply With Quote
Old 05-18-2008, 04:34 PM   #60
RyeLou
Scooby Newbie
 
Member#: 179113
Join Date: May 2008
Location: Troy, MI
Vehicle:
05 Evo

Default

Quote:
Originally Posted by MumblinAviator View Post
With that said, post your numbers anyway!
We'll see. I'll probably post them at some point, but the only comparison I would care to make or even hear about is from someone on the same dyno round here. Other than that, you can really only get a handle on the range of power a certain turbo can make. The modified FP Green I'm going with will be perfect for me. Fast spool is what I'm looking for, and everything else follows. I go to the drag strip maybe 2 - 3 times a year, but I drive it every day to from work and any other road trips I do. I love having a car I can step on the gas and take off, regardless of who or what (if anything) is next to me.

And going to the STi from the SRT will be awesome come winter time
RyeLou is offline   Reply With Quote
Old 05-18-2008, 04:43 PM   #61
zeropsi
*** Banned ***
 
Member#: 175453
Join Date: Mar 2008
Chapter/Region: MWSOC
Location: wilCO, IL
Vehicle:
AE86 GT-S coupe
i <3 alqonquin homosauce

Default

Quote:
Originally Posted by RyeLou View Post
Why limit yourself to an off the shelf turbo? Call one of the vendors on here or call around your area and find someone who builds them. I have a friend who does just that and I'm going through him. It's an FP Green based turbo, but it will spool slightly quicker and make more power up top. Not a lot...but noticeable if you were to drive mine after a similarly modified regular FP green car.
If you don't mind my asking, what are the physical/mechanical differences in your turbo that cause the change in power/spool over an OTS (off the shelf) Green?
zeropsi is offline   Reply With Quote
Old 05-18-2008, 07:50 PM   #62
RyeLou
Scooby Newbie
 
Member#: 179113
Join Date: May 2008
Location: Troy, MI
Vehicle:
05 Evo

Default

Quote:
Originally Posted by zer0psi View Post
If you don't mind my asking, what are the physical/mechanical differences in your turbo that cause the change in power/spool over an OTS (off the shelf) Green?
I'll get the technical specs and post them once I do. I'll probably end up making a new thread about it, assuming it's fine with my friend.

For anyone local to me I always suggest people get their turbos from this guy. Certain manufacturers are a little more sensitive to allowing him to modify their "perfect" turbo, but in the end he hasn't ever ran into any major issues with it.

The turbo that went into my SRT was a Garrett 50 trim (almost exactly the same size as a GT3076) but journal bearing instead of dual ball bearing. He ported the housings of the turbo though and managed to fit the wheels from the S256 in it. It helped spool by a couple hundred RPM so it still spooled similar to the GT series turbos and also made it a little more efficient too.
RyeLou is offline   Reply With Quote
Old 05-18-2008, 11:36 PM   #63
zeropsi
*** Banned ***
 
Member#: 175453
Join Date: Mar 2008
Chapter/Region: MWSOC
Location: wilCO, IL
Vehicle:
AE86 GT-S coupe
i <3 alqonquin homosauce

Default

Quote:
Originally Posted by RyeLou View Post
I'll get the technical specs and post them once I do. I'll probably end up making a new thread about it, assuming it's fine with my friend.

For anyone local to me I always suggest people get their turbos from this guy. Certain manufacturers are a little more sensitive to allowing him to modify their "perfect" turbo, but in the end he hasn't ever ran into any major issues with it.

The turbo that went into my SRT was a Garrett 50 trim (almost exactly the same size as a GT3076) but journal bearing instead of dual ball bearing. He ported the housings of the turbo though and managed to fit the wheels from the S256 in it. It helped spool by a couple hundred RPM so it still spooled similar to the GT series turbos and also made it a little more efficient too.
Sounds pretty B.A.

If he could improve on an HTA Green, I just might be interested.
zeropsi is offline   Reply With Quote
Old 05-19-2008, 12:15 AM   #64
teg5
Scooby Newbie
 
Member#: 163853
Join Date: Nov 2007
Chapter/Region: MWSOC
Location: O-H-I-O
Vehicle:
2011 STi Hatch
DGM

Default

Does this friend of yours happen to have hair that looks similar to Whoopie Goldburg and have a red civic named "AKIRA." If so, I can't imagine buying a turbo from anyone else. I'm trying to talk him into going "off the beaten path" and design something different for my 05 STi. If you see him anytime soon, tell him Aaron says hello.

Back on topic, this thread highly interests me as I feel in the same boat. I want a little more power, but not enough to require new pistons in a month or two as my luck goes. 20G was what I'm thinking but the jury is still out for sure. Nice results from what I have seen so far, thanks guys.
teg5 is offline   Reply With Quote
Old 05-19-2008, 12:30 AM   #65
MumblinAviator
Scooby Newbie
 
Member#: 143327
Join Date: Mar 2007
Location: Oak Harbor
Vehicle:
04 STi
JBP

Default

Good! Glad this is helping someone else out... that was the point, after all.

20g sounds like it'll be my final result, but it'll come in stages:

Stage I
Cobb AP v2
Meth Injection
Tune

Stage II
20g (probably DB or Blouch)
Injectors
Tune

Stage III (If I'm not already dead or divorced)
Larger TMIC or FMIC
EWG/ EWG Uppipe
BOV?
Headers
Tune

I know what you're thinking.... if you do it all at once, you only need to get tuned once.
While some of us have the deep pockets to buy everything at once, I don't, and I also think building in stages will be more interesting and will allow me to draw out the fun a bit.
MumblinAviator is offline   Reply With Quote
Old 05-19-2008, 12:38 AM   #66
MumblinAviator
Scooby Newbie
 
Member#: 143327
Join Date: Mar 2007
Location: Oak Harbor
Vehicle:
04 STi
JBP

Default

Afterthought:

Am I nuts to want to put Injection First? I can expect gains on a stock turbo, right?
MumblinAviator is offline   Reply With Quote
Old 05-19-2008, 01:07 AM   #67
zeropsi
*** Banned ***
 
Member#: 175453
Join Date: Mar 2008
Chapter/Region: MWSOC
Location: wilCO, IL
Vehicle:
AE86 GT-S coupe
i <3 alqonquin homosauce

Default

It'll give you gains no matter what.
I can just say that personally I'm a bit scared of it, as methanol is by nature a very corrosive substance. It's not to say it'll be damaging, but I'm super paranoid about keeping this car as perfect as possible.
zeropsi is offline   Reply With Quote
Old 05-19-2008, 01:23 AM   #68
MumblinAviator
Scooby Newbie
 
Member#: 143327
Join Date: Mar 2007
Location: Oak Harbor
Vehicle:
04 STi
JBP

Default

I suppose that's a reasonable concern, although I haven't read up much on the negative side effects.

I have heard though that you can just run straight H2O... it may not net as much gain, but it'll help with your concerns.
MumblinAviator is offline   Reply With Quote
Old 05-19-2008, 10:36 AM   #69
Stames_wiltz
Scooby Specialist
 
Member#: 143264
Join Date: Mar 2007
Chapter/Region: RMIC
Location: Utah
Vehicle:
2006 WRX TR
Obsidian Black Pearl

Default

You will not need to do internals with a DOM III. Depending on the tune and the Driver, this turbo cangive VERY strong, consistant power that is also reliable. The 20G is a great Turbo, but I promise you will want more when it is all said and done. I have had my Dom III for about 2 months now and it is starting to feel slow. EVEN though yesterday I walked a 2002-2004 Z06 from a freeway roll, I still feel like more power would be great. My Dom III spools like a maniac, it is rare for a turbo this size to also have a 1st and 2nd gear.

The Dom III would cost another $500 on top of the 20G and it boasts an additional 8 lbs/min flow. The 20G is only 9 lbs/min flow over the stock VFxx turbo's. So if you look at it that way, you will be getting that much more headroom for power and you spool up just as quick. It makes me confused as to why the 20G is even considered anymore, but that is just my opinion.
Stames_wiltz is offline   Reply With Quote
Old 05-19-2008, 10:39 AM   #70
RyeLou
Scooby Newbie
 
Member#: 179113
Join Date: May 2008
Location: Troy, MI
Vehicle:
05 Evo

Default

Quote:
Originally Posted by teg5 View Post
Does this friend of yours happen to have hair that looks similar to Whoopie Goldburg and have a red civic named "AKIRA."
That would be him, I think. I know the red Civic used to his his wifes car and had a different plate...but I haven't seen that car in over a year. My only concern is it will take him a while to get me my turbo with all his traveling for work and being busy with law school. I'm going to give him a call later this week and let him know it's just about time.
RyeLou is offline   Reply With Quote
Old 05-19-2008, 12:56 PM   #71
yohan04
Scooby Specialist
 
Member#: 73003
Join Date: Oct 2004
Chapter/Region: MAIC
Vehicle:
- __ -

Default

Here's the old set-up when I had the FP Green

2.4 FP Green 8cm
TXS FMIC
Nismo 740cc
Catless TBE
44mm Tial EWG
Perrin inlet
K&N Intake
GM boost solenoid

Tuned and dyno'd at Agile, netted 409whp/375tq on pump 93.
yohan04 is offline   Reply With Quote
Old 05-19-2008, 01:40 PM   #72
MumblinAviator
Scooby Newbie
 
Member#: 143327
Join Date: Mar 2007
Location: Oak Harbor
Vehicle:
04 STi
JBP

Default

Awesome results!

Stames - I think you might be convincing me...slowly but surely. Your assuredness about its spoolup time AND its potential top end are starting to sway my decision

Do you know anyone else on here with the Dom III? I'd like to talk to them as well, get some more opinions and setups, kinda like this thread.
Thanks!
MumblinAviator is offline   Reply With Quote
Old 05-19-2008, 08:46 PM   #73
wuuusaa
Scooby Specialist
 
Member#: 92894
Join Date: Aug 2005
Chapter/Region: International
Location: Running away from Polar bears
Default

^^^06rexwagon has a Dom 3 as well, his name is Cameron. He made like 420+whp on meth/pump iirc.
wuuusaa is offline   Reply With Quote
Old 05-19-2008, 10:34 PM   #74
MumblinAviator
Scooby Newbie
 
Member#: 143327
Join Date: Mar 2007
Location: Oak Harbor
Vehicle:
04 STi
JBP

Default

Awesome, ill have to look him up. I've found a few others since I've posted, too.

Anyone else reading that hasn't posted, keep bringin in the numbers!
MumblinAviator is offline   Reply With Quote
Old 05-20-2008, 09:41 AM   #75
zeropsi
*** Banned ***
 
Member#: 175453
Join Date: Mar 2008
Chapter/Region: MWSOC
Location: wilCO, IL
Vehicle:
AE86 GT-S coupe
i <3 alqonquin homosauce

Default

FWIW, in my research I'm liking the results of Deadbolt 20G's over the competition and might lean towards that direction.
zeropsi 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

Similar Threads
Thread Thread Starter Forum Replies Last Post
WTB: 20g or fpgreen ultramagnus Private 'Wanted' Classifieds 4 09-08-2007 06:32 AM
Larger than stock turbo street setups on STi: state your mods and MPG please :) thomez Factory 2.5L Turbo Powertrain 3 02-20-2006 12:39 AM
Deadbolt 20g VS FPgreen (dynosheet) TopSpeed Proven Power Bragging 153 06-08-2005 02:43 PM
Post your LE28's and CE28's pretty Please blinguskahn Tire & Wheel 0 02-09-2005 07:28 PM
Moving to NH/MA area, I need your help...pretty please with sugar on top? Sean New England Impreza Club Forum -- NESIC 30 12-05-2000 09:15 AM


All times are GMT -4. The time now is 02:00 PM.


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