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Old 07-29-2008, 12:07 AM   #1
WRXINTX
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Member#: 96712
Join Date: Sep 2005
Default High Stall Torque converters for 4Eat Transmissions???

Ok.....

Broad generalizations abound....

but, here is what I would like to know....


I have a 2004 Forester XT auto....


1. How much Will going to a 3400-3600 stall affect my fuel mileage for around town driving?? Experienced owners only please....


2. what RPM stall converter would I need most likely if I use a Gt35R Turbo on my engine????

3. Obviously, I will need to build the tranny and have the valvebody modded by IPT....



The reasons I ask are

1. my tranny is starting to "flare" between shifts at part throttle with my little APS S/R 50 turbo....

2. It is a dog out of the hole with this bigger turbo, and the autos aren't known for swiftness with the stock turbo either....

3. I figure I can give up 2-4mpg around town, but I want the highway mileage to remain good, so a lockup converter is imperative....


currently, my mileage is 20/24 with APS S/R 50 turbo and 860cc injectors...

on a stock engine with 120K miles on it....



Thanks for opinions, thoughts, and experiences.....

RYNO
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Old 08-04-2008, 01:54 AM   #2
acheung
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i have an ipt modded torque converter for sale if you're interested. It was formerly in an 04 forester xt with a vf34. Not 100% sure what the stall is.
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Old 08-04-2008, 02:34 AM   #3
ciper
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Location: san francisco, ca
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90BJ Legacy LS ABS
AWD 946 Rio Red Jpn built

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Quote:
Originally Posted by WRXINTX View Post
3. Obviously, I will need to build the tranny and have the valvebody modded by IPT....
I think (not sure) I've seen complaints about the IPT valvebody. Might wanna read them before spending the money.
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Old 08-04-2008, 03:49 AM   #4
a6n6d6y
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Chapter/Region: NWIC
Location: SEATTLE
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1993 POS
burgandy legacy

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here is my $0.02

http://www.subaruforester.org/vbulle...version-37441/

http://www.subaruforester.org/vbulle...-06-fxt-38281/

the VBs on the FXTs don't mod well as they are a 'direct control' deal and about all you can do is raise line pressure with a resister mod

I get about 17 MPG in city with the high stall TC and my driving

you are going to need a loose converter to get a gt35 to spool brake torquing, I would suggest calling protorque as I am having a hard time getting what I need from IPT these days
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