Welcome to the North American Subaru Impreza Owners Club Friday September 19, 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 > Built Motor Discussion

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 01-06-2011, 03:50 PM   #1
DemiSlayer
Scooby Specialist
 
Member#: 120339
Join Date: Jul 2006
Chapter/Region: RMIC
Location: Utah
Vehicle:
02 WRX
Alliance Motor Sports

Default Need help with my Drag only setup

Hi descided to post here because i dont get alot of feed back in other sections.

Dont want to post all my mods because too many to think of. Am running a 76mm custom comp turbo along with the setup i purchased from Fastech of which they made 900whp on a much smaller turbo.

I am trying to figure out a transmission. I dont want a PPG because i know it will blow up at some point and dont want to spend 2g for a single part.

I debated weather to build a 4EAT tho most experts tell me its not happening

i am already going to run a ford 9inch for the rear end would purchasing a demestic built trans with a trans brake off say summit be a good route and just run RWD?
* Registered users of the site do not see these ads.
DemiSlayer is offline   Reply With Quote
Old 01-06-2011, 05:33 PM   #2
MXJS
Scooby Newbie
 
Member#: 129793
Join Date: Oct 2006
Chapter/Region: RMIC
Location: Ogden Utah
Vehicle:
2004 STI
LSX RX-7

Default

For a serious drag car, a ford 9" and TH400 would be an excellent setup. They are strong and cheap. I run mid 10's on a TH350 that I bought for $250.
MXJS is offline   Reply With Quote
Old 01-06-2011, 06:08 PM   #3
DemiSlayer
Scooby Specialist
 
Member#: 120339
Join Date: Jul 2006
Chapter/Region: RMIC
Location: Utah
Vehicle:
02 WRX
Alliance Motor Sports

Default

Any recomendations on RPM for the stall converter? am going to spin to 9k RPMS power band will be 5-9 range
DemiSlayer is offline   Reply With Quote
Old 01-06-2011, 06:22 PM   #4
MXJS
Scooby Newbie
 
Member#: 129793
Join Date: Oct 2006
Chapter/Region: RMIC
Location: Ogden Utah
Vehicle:
2004 STI
LSX RX-7

Default

I am not an expert on that. I would guess about 6k rpm. Mine stalls to 4300 on motor and over 5000 on nitrous, but it is a v8 so much different powerband. I run a FTI torque converter. I called them up and spoke with them for about an hour. He tooks all the specs of my car and custom built the converter and his price was very fair! His website is

http://fticonverters.com/

A few other good torque converter companies:
http://www.circledspecialties.com/
http://www.converter.cc/
MXJS is offline   Reply With Quote
Old 01-06-2011, 06:59 PM   #5
Homemade WRX
Scooby Guru
 
Member#: 33782
Join Date: Mar 2003
Chapter/Region: MAIC
Location: 3MI Racing LLC
Vehicle:
96 bastard child
search FIRST, then PM!!!

Default

the biggest question from me is do you want to keep the AWD subie aspect (which I'm going to attempt) or are you completely open to the strictly rear wheel drive?

do you want the challenge of a handshaker (like me) or will you be happy with a slushbox?
Homemade WRX is offline   Reply With Quote
Old 01-07-2011, 12:07 AM   #6
DemiSlayer
Scooby Specialist
 
Member#: 120339
Join Date: Jul 2006
Chapter/Region: RMIC
Location: Utah
Vehicle:
02 WRX
Alliance Motor Sports

Default

I am totally adaptaple. I have thought of running the 6 spd tho dont care for the gearing at all for drag racing and dont want to spend the $$$ to change the gear ratio and build it up.

am starting to lean towards a simple th350/400 with a trans brake.

Hows your personal build coming along homemade?
DemiSlayer is offline   Reply With Quote
Old 01-07-2011, 05:52 AM   #7
Md05STI
Scooby Specialist
 
Member#: 76974
Join Date: Dec 2004
Chapter/Region: MAIC
Location: Hagerstown, MD
Vehicle:
2005 CGM STI
10.03 @ 135

Default

Are you planning on racing the car competitively or just trying to build a fast car?
Md05STI is offline   Reply With Quote
Old 01-07-2011, 10:02 AM   #8
Homemade WRX
Scooby Guru
 
Member#: 33782
Join Date: Mar 2003
Chapter/Region: MAIC
Location: 3MI Racing LLC
Vehicle:
96 bastard child
search FIRST, then PM!!!

Default

Quote:
Originally Posted by DemiSlayer View Post
I am totally adaptaple. I have thought of running the 6 spd tho dont care for the gearing at all for drag racing and dont want to spend the $$$ to change the gear ratio and build it up.

am starting to lean towards a simple th350/400 with a trans brake.

Hows your personal build coming along homemade?
yanked the motor out last night to toss in a thicker headgasket. My loose bearing clearances, expected RPM and quench height that I had...well I started to really think what if and got scared
Dom (Maxwell Power) supposedly has my harness done, so I'll toss the motor back in and fly him out here...I've been twiddling my thumbs as he did my harness as a favor


Back to you now: Have you thought of a T56...that being a viable manual option. Transbrake and th350/400 is the good old domestic option. So a subaru engine, chevy trans and ford rear end. We are getting into some serious Frankenstein stuff now!
Homemade WRX is offline   Reply With Quote
Old 01-07-2011, 10:47 AM   #9
DemiSlayer
Scooby Specialist
 
Member#: 120339
Join Date: Jul 2006
Chapter/Region: RMIC
Location: Utah
Vehicle:
02 WRX
Alliance Motor Sports

Default

I might want to compete so I'm trying to cover most of the safty equipment from the get go. Not sure the turbo I am running is allowed with a water to air intercooler setup. I have thought of a t56 and would like that too can't descide. As to Frankenstein lol the only reason for the ford rear end is because my engine builder/fabricator had a way of easily installing one and using particular half shafts so I don't need to tub the rear end. How much did u pay for the custom harness? What em are u using ? I'm using aem
DemiSlayer is offline   Reply With Quote
Old 01-07-2011, 11:31 AM   #10
Homemade WRX
Scooby Guru
 
Member#: 33782
Join Date: Mar 2003
Chapter/Region: MAIC
Location: 3MI Racing LLC
Vehicle:
96 bastard child
search FIRST, then PM!!!

Default

Dom and I are actual friends...I was a groomsmen in his wedding, so we bartered a deal. harness was a favor in trade of me doing some engineering work for them.


If you're going to be in a competition and class, then I understand the auto's advantage. Save some weight and take off the BOV too

So what class/series are you going to be running?

Last edited by Homemade WRX; 01-25-2011 at 08:50 AM.
Homemade WRX is offline   Reply With Quote
Old 01-07-2011, 11:41 AM   #11
DemiSlayer
Scooby Specialist
 
Member#: 120339
Join Date: Jul 2006
Chapter/Region: RMIC
Location: Utah
Vehicle:
02 WRX
Alliance Motor Sports

Default

Haven't descided on which class either want to make sure and keep it fun I have a habbit of loosing fun in buisness and competition. What do u recomend and what other options to loosing weight other then tubbing the car of which I wouldn't mind just low on funds this year.
DemiSlayer is offline   Reply With Quote
Old 01-07-2011, 11:45 AM   #12
Md05STI
Scooby Specialist
 
Member#: 76974
Join Date: Dec 2004
Chapter/Region: MAIC
Location: Hagerstown, MD
Vehicle:
2005 CGM STI
10.03 @ 135

Default

Bracket racing or heads up?

This kind of setup in heads up racing will put you into classes that are extremely fast, 8sec or faster.

Would be a great bracket setup though.
Md05STI is offline   Reply With Quote
Old 01-07-2011, 11:51 AM   #13
69subaru360
Scooby Guru
 
Member#: 159682
Join Date: Sep 2007
Chapter/Region: NESIC
Location: Maine
Vehicle:
1995 WRX
1998 2.5 RS

Default

You're going to have to build an adapter plate to use a GM trans. Not that hard but mounting the starter and flexplate will be a challenge, the GM starter is underneath and faces the other way.

I'd use a powerglide with 6000 rpm converter. A 350 isn't strong enough and 400 is too heavy. At 900 hp you are going to need an aftermarket input shaft, gearset, pump and case if you want the trans to last along with a billet stator in the converter. I've built powerglides for 1000 hp cars and this is what it takes to make them live.

If you really make 900 hp, the only subaru trans that is going to stand up to that is a ppg 6 speed with ppg transfer gears, forks and diffs.
69subaru360 is online now   Reply With Quote
Old 01-07-2011, 04:23 PM   #14
john 1badSTI
Scooby Specialist
 
Member#: 77470
Join Date: Dec 2004
Chapter/Region: MWSOC
Location: grove city ohio
Vehicle:
04 sti 10.51@138.5
on e85@ 30psi--spinning

Default

There is a shop out west that has already done this iirc it was PRE RACING.I hate to say it but if money is tight its not going to happen,there is no way to adapt,convert,build a good gm th tranny w/stall and trans brake for less than 6,000.00 by itself not including all the little schitt that adds up quickly.I suggest contacting that other shop(I think they are in oregon),talk to them crunch the #'s then decide.Or contact esx and purchase a uber expensive suby auto. glwb
john 1badSTI is offline   Reply With Quote
Old 01-07-2011, 04:36 PM   #15
69subaru360
Scooby Guru
 
Member#: 159682
Join Date: Sep 2007
Chapter/Region: NESIC
Location: Maine
Vehicle:
1995 WRX
1998 2.5 RS

Default

Yep, 900 whp is no joke. No stock gm transmission parts will hold up to that. You'd break an input shaft or planetary within a few passes. If you aren't lucky, you'd blow the case apart. If you want to go gm auto, plan on using aftermarket everything, nothing in it will be factory parts, including the case. I could probably put one together for less than 6k but it will still be thousands of dollars. Then you'd be looking at getting an adapter plate made, there is no off the shelf suff to do this and it has to be done precisely. No clue what that might cost. I suppose you'd get an adapter made to mount a gm flexpate. I'm clueless on the starter. It mounts facing the front of the car on gm cars. I guess you would mount it to your adapter plate, but the subaru crossmember is where the starter would need to go.
69subaru360 is online now   Reply With Quote
Old 01-07-2011, 05:14 PM   #16
Homemade WRX
Scooby Guru
 
Member#: 33782
Join Date: Mar 2003
Chapter/Region: MAIC
Location: 3MI Racing LLC
Vehicle:
96 bastard child
search FIRST, then PM!!!

Default

I remember there was a guy on here from Indiana building up a similar project. Then it stalled, I think funding, and he parted his stuff out...thread was something about methanol gc8 or something.

I'm torn on Albins and PPG but I'm getting a better offer on the Albins...so I may be swayed. My real issue is going to be gearing as it's really going to be a standing mile setup that concerns my trans...my 35R road course setup isn't the fear.
Homemade WRX is offline   Reply With Quote
Old 01-07-2011, 05:44 PM   #17
DemiSlayer
Scooby Specialist
 
Member#: 120339
Join Date: Jul 2006
Chapter/Region: RMIC
Location: Utah
Vehicle:
02 WRX
Alliance Motor Sports

Default

The only thing that remains is my L19 14mm head studs needs to be installed need O-ringing and a new timing belt. Need a bracket fabricated for my oil sump and alternator. Need a radiator duplicated as the one that came with the setup is damaged. Need a fuel pump and fuel line and thats it other then a few odds and ends. The big hold up is the transmission situation.

The engine that im using was purchased from Suby44 of which made 807 to the wheels on a smaller turbo and less of a setup at only 29psi. He was running the stock 6spd which held together fine tho he never launched it as well he babied it down the track for 40plus passes.

I can get an adapter plate for fairly cheap as well.

I know supra R154 could handle 700 ft lbs of torque and would be cheaper then some of the other options tho an adapter plate would cost more then the gm one i beleive as i dont know anyone with one pre-built.

Also i dont mind blowing up a trans or too lol as long as the trans isnt 6k
DemiSlayer is offline   Reply With Quote
Old 01-07-2011, 05:46 PM   #18
wrxwhat
Scooby Specialist
 
Member#: 87653
Join Date: May 2005
Chapter/Region: South East
Location: Orlando, FL
Vehicle:
500 hp STI / 1100hp
Supra T / Stock G35

Default

I'd rather put a Supra Getrag V160 in the car rather than a T56, the R154 isn't great either.. The 6 speed Supra gearing is much better than the T56's, especially if you ever want to get into Mile racing.
wrxwhat is offline   Reply With Quote
Old 01-07-2011, 05:47 PM   #19
69subaru360
Scooby Guru
 
Member#: 159682
Join Date: Sep 2007
Chapter/Region: NESIC
Location: Maine
Vehicle:
1995 WRX
1998 2.5 RS

Default

Don't even consider a T56. You would break it the first time at the track.
69subaru360 is online now   Reply With Quote
Old 01-07-2011, 05:55 PM   #20
DemiSlayer
Scooby Specialist
 
Member#: 120339
Join Date: Jul 2006
Chapter/Region: RMIC
Location: Utah
Vehicle:
02 WRX
Alliance Motor Sports

Default

I would love the supra 6 speed tho they are extremely hard to find at the moment.
DemiSlayer is offline   Reply With Quote
Old 01-25-2011, 03:38 AM   #21
mtcs
Scooby Specialist
 
Member#: 180640
Join Date: May 2008
Chapter/Region: E. Canada
Location: Montreal, Canada
Vehicle:
2000 Drag RSTi
8.96 @ 163

Default

So you bought fastech's old setup huh. That thing was a monster.
I was looking over pics and saw that they built the intake manifold into the air/water intercooler. One piece. Just brilliant! No piping needed at all.
Rigoli is always an option if you want an unbreakable auto trans. They may cost an arm and a leg, but well worth it. My neighbor is running a rigoli trans in his wrx with a gt42r and has never had any problems. Only problem I had was trying to drive the damn thing on the street. Got pulled over less than 1/4 from my place. Guess the chute in the back caught the cops interest. Lol.
Anyways, keep us up to date!
mtcs is offline   Reply With Quote
Old 01-25-2011, 08:52 AM   #22
Homemade WRX
Scooby Guru
 
Member#: 33782
Join Date: Mar 2003
Chapter/Region: MAIC
Location: 3MI Racing LLC
Vehicle:
96 bastard child
search FIRST, then PM!!!

Default

for the price of getting a T56 and how cheap (relative term), abundantly availabe and reliable they are, I don't see why one would chase down a Supra trans.

T56 is a bit tall for us but he's building a rear end, so with final drive changes, I think he'd be fine...?...

A co-worker of mine has been running his built T56 at 960 whp and like 800 lb-ft for two seasons now without issue. He does however grenade his wavetrac diff from time to time (on his 3rd now).
Homemade WRX 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
Help with my drag only setup. DemiSlayer Built Motor Discussion 17 03-02-2010 12:44 AM
Need advice with my STi sound setup. RafalW Car Audio, Video & Security 13 06-11-2003 03:55 PM
Need Help with my setup... Kickz107 Factory 2.0L Turbo Powertrain 1 11-11-2002 10:42 PM
I need help with my AGX/Ground Control setup MY99 2.5GT Brakes, Steering & Suspension 32 07-16-2001 09:29 AM
Need help with my new suspension.. Setup, specs, ... (Ohlins) Mike Moffa Brakes, Steering & Suspension 4 06-24-2001 07:52 PM


All times are GMT -4. The time now is 06:38 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.