Welcome to the North American Subaru Impreza Owners Club Monday August 31, 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 > Pre-2002 Factory 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 07-28-2005, 11:21 AM   #1
Sandsuby
Scooby Newbie
 
Member#: 35531
Join Date: Apr 2003
Location: Yuma, AZ winter Wa summer
Vehicle:
1997 JDM WRX EJ20TT
Yellow

Default How much HP will 4EAT auto tranny take?

I have beem running a JDM 97' twin turbo EJ20 and 4EAT mid-engine in a sandrail for three years. The twin turbo setup was replaced with one from a 2002 WRX and a lot less pain to the brain. The original tranny gave up and started slipping soon after it was installed. The reason I believe was no tranny cooler. The second has performed flawlessly. I shift the 4EAT full manual. This car is street legal and sees most of its miles there but about five times a year the sand gets punished with paddle tires. I have kept the boost down to seven pounds and just use premium gas. I have been thinking about raising the boost to about 15 lbs. but i am a little concerned about the 4EAT taking the increased HP all on the front axle. My question here is: Is there anyone running big HP to a 4EAT? Or anyone know how much HP it will resonably will take?
* Registered users of the site do not see these ads.
Sandsuby is offline   Reply With Quote
Sponsored Links
* Registered users of the site do not see these ads.
Old 07-28-2005, 08:03 PM   #2
west_minist
Scooby Specialist
 
Member#: 53451
Join Date: Jan 2004
Location: Caribbean
Vehicle:
2000 JDM Impreza SRX
w/ AVCS Silver

Default

Well, it not hp that kills the tranny, its the torque.

So you should be asking how much torque can the tranny take before the clutch pack starts to slip.

I also wondering what the answer would be.
west_minist is offline   Reply With Quote
Old 07-28-2005, 10:33 PM   #3
Sandsuby
Scooby Newbie
 
Member#: 35531
Join Date: Apr 2003
Location: Yuma, AZ winter Wa summer
Vehicle:
1997 JDM WRX EJ20TT
Yellow

Default

There seems to be several here with hi output engines are any of them using a auto tranny? have they had problems?
Sandsuby is offline   Reply With Quote
Old 08-08-2005, 06:16 PM   #4
jaxscuby
Sammo Hung
Moderator
 
Member#: 10613
Join Date: Sep 2001
Chapter/Region: South East
Location: S Ga / N Fla
Vehicle:
2002 USDM WRX
WRB

Default

heat kills autotrannies...
well if you have enough hp & tq..yeah they will also
kill trannies...

02 ej205 can produce +300 whp..but dependibilty becomes
an issue a the power level. my 02wrx has 275 whp ~350 hp
and it has 113k miles on stock clutch & tranny..
jaxscuby 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
How much hp can the stock tranny hold??? w321shark Newbies & FAQs 11 08-18-2008 04:19 PM
How much hp will my EJ20 take? stickboie Factory 2.0L Turbo Powertrain (EJ Series Factory 2.0L Turbo) 13 10-26-2007 10:45 PM
1998 4EAT...how much HP will it hold? Perdue Legacy Forum 12 08-30-2005 05:36 PM
how much hp can a stock tranny for an 04 wrx handle 04wrx555 Transmission (AT/MT) & Driveline 27 01-07-2005 02:01 PM
compression results. (how much hp will a USDM EJ20 take?) AZScoobie Factory 2.0L Turbo Powertrain (EJ Series Factory 2.0L Turbo) 50 04-22-2004 11:56 AM


All times are GMT -4. The time now is 01:07 AM.


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