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Old 04-28-2001, 01:53 AM   #1
Scooby Newbie
Member#: 3673
Join Date: Jan 2001
Location: chicoutimi,quebec,canada
2000 impreza 2.5 RS
blue ridge,yellow stripes

Question limitations of the 4eat...

i own a my00 RS,equipped with a 4eat,i'd like to install a turbo or supercharger in it,but i'm affraid the auto tranny wouldn't be able to resist the added stress of 200+ hp,and 200+lbs/feet of torque?would anyone be able to tell me wich venue would be better and cheaper power-wise? turbo or s/c??
will the 4eat handle the new found power???
HELP ME!!!!!
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Old 04-28-2001, 03:56 AM   #2
Scooby Specialist
Member#: 2736
Join Date: Oct 2000
Chapter/Region: SCIC
Location: Los Angeles, CA US
2001 Impreza 2.5RS
Aspen White


I've got a MY00 w/ a 4EAT as well. From what I've heard, some would say that the s/c would be better. No lag. As for the 4EAT, I've also heard it's a bit stronger than the MT's. That's about all I know.
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Old 04-28-2001, 04:17 AM   #3
Scooby Guru
Member#: 610
Join Date: Dec 1999
Chapter/Region: VIC
Location: Vancouver, BC, Canada
2003 Lexus IS300
Graphite Gray Pearl


Just run a tranny oil cooler. Make sure not to do any crazy left foot braking, neutral drops, etc. and the tranny should be more than able to cope with 220~hp.
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Old 04-28-2001, 12:46 PM   #4
Scooby Guru
Member#: 1140
Join Date: Mar 2000
Chapter/Region: SCIC
Location: San Diego
2000 S201 #78, '95 L
'13 F150 Ecoboost


There are more T/C kits avalable than S/C. If I could find a reliable place to get a S/C that's the route I'd take.
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Old 04-28-2001, 12:56 PM   #5
Scooby Guru
Member#: 1581
Join Date: Jun 2000
Chapter/Region: Tri-State
Location: yonkers, ny
MY00 RS/STi7
MY01 RS Both Silverthorne


I have heard it can handle 350lbs/ft. of torque.
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Old 04-29-2001, 03:13 AM   #6
Scooby Newbie
Member#: 2391
Join Date: Sep 2000
Location: Bucks, UK

I have a 4E-AT on my car and it has no problems:

94 WRX Auto
280bhp (220bhp standard - Link ECU, 3" exhaust, Air/Water chargecooler, 17psi boost)

255 lb/ft
158bhp paw (all wheels driven)

I am running a transmission cooler (Mocal) and Amsoil synthetic ATF as sensible precautions.

They use the 4E-AT in Australia for drag racing.....



[This message has been edited by GavinP (edited April 29, 2001).]
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Old 04-29-2001, 05:00 PM   #7
Legacy STi L
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Dropping in from the Legacy dept. here. The Legacy B4 twin turbo is running the 4EAT when ordered with the auto. Although newer ones have a modified 4EAT with a man-u-matic shift option. I WANT ONE TOO!
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Old 04-29-2001, 05:53 PM   #8
Scooby Specialist
Member#: 1682
Join Date: Jun 2000
Chapter/Region: SCIC
Location: in my OBXT on the dead lawn
'06 OBXT
Glacier White GF4


So, if one could find one of those newer manu-matic style tranny's, would it fit right in?
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