manual awd to automatic awd swap

[Keyan]

atx ecu = ecu from an atx car. this is NOT what he needs. he needs the transmission control unit, not the engine control unit.

granted, it may have been confusing the way i typed it. i agree he would need the transmission control unit, not the engine. I work for toyota and everything is an "electronic control module/unit" so parts I deal with on a daily basis would be "Headlight ECU" and "Body ECU" I typed ATX ECU out of habit, but I did mean transmission control unit, yes.

additionally, there's benefits to running the TT harness, such as not having to wire resistors on the injectors.

good point.

i don't think you're an idiot. i think we all need to use the proper terms when discussing things such as this; because the ECU and TCU are two different computer modules. i salute your pioneering efforts with your hyundai. i do wish that there was work done with the mtx> atx realm for our cars.

thanks for the kind words.

[GTOJOE]

i never said there was an atx awd tt. that said, the awd atx is a very capable transmission, as there are several DSM's who are using it and have faster 1/4 runs than the current 3/s world record--so take that for what its worth. there's a LOT of talk from people who have never used one of these transmissions about "how it might not hold up". do me a favor, if you don't have FACTUAL DATA on it...stop being a skeptic. there has been only ONE person who has had a consistent failure with it, and he was putting down > 800whp at the time.

I think you need to calm down. My coment was aimed at the OP not at you as he refered to it as a JDM VR-4 ATX. I was simply letting him know there was no such thing and the the box MAY not handle the power and that he MIGHT need to beef it up if running a modified TT engine. I know the boxes are quite strong but IIRC the drive shafts are much thinner than the VR-4/TT shafts.

[IPD]

the driveshaft is virtually identical to the 6-speed driveshaft; only the nipple that fits into the transfer case is different. i'm sure if someone were so inclined, they could probably rig the 6-speed xfer case guts to work with an awd atx. i've never heard of anyone sheering off a driveshaft nipple though--so i don't think it's a big problem.

sorry if i'm crotchety. i'm mad at life lately.

[DocHoliday]

Random question. How many gears does the 3/S ATX have?

[TUFFTR]

Four.

[colt45 gto]

bad idea! as said previously its going to be more hassle than enough.

the JDM ATX is made of jelly which is worse than what the MTX's are made of. you wouldn't get it to work or it will not work very well at all.

you will need....
peddle box
shifter and cables
TCU
full wiring harness
ATX and TC
intermediate shaft
prop shaft
going from 6 spd to 4spd auto you will need rear diff too.

after all this you will have to sit and reconfigure the wiring for the ECU because its a different pin out.

[IPD]

bad idea! as said previously its going to be more hassle than enough.

the JDM ATX is made of jelly which is worse than what the MTX's are made of. you wouldn't get it to work or it will not work very well at all.

you will need....
peddle box
shifter and cables
TCU
full wiring harness
ATX and TC
intermediate shaft
prop shaft
going from 6 spd to 4spd auto you will need rear diff too.

after all this you will have to sit and reconfigure the wiring for the ECU because its a different pin out.

more misinformation. of course, colt has me on ignore because i had the audacity to call him out on spreading the bullshit "backpressure myth"--so he cant' see a damn thing i posted.

i'll petty much go out on a limb here and guess that colt's never actually driven, much less owned an awd atx 3/s--let alone one that's turbocharged. as i've said over and over, its the same mechanical hardware as the dsm awd atx. i'll take a person with years of experience with dsm's over colt's hearsay. so take all this "advice" people are throwing at you with a grain of salt. i myself am one of the few 3/s owners in the world with an awd atx tt, and i'd like to think that entitles me to having a bit more FACTUAL perspective on this than people who just spew whatever they feel like saying without having any real data or proof to go on--and rely in personal biased opinions instead. the "awd atx is jelly" is a load of horse manure.

as i said, the 6-speed rear is THE SAME. mine is off a 96 vr4 & the rear drivetrain hasn't been modified in any way. the jdm awd atx driveshaft bolted directly to it without modification. i'm also not sure what he means by "reconfigure ecu wiring". regardless, you have AEM, so you can pretty much have it communicate with the TCU in whatever way you'd like.

[colt45 gto]

you know nothing about me so you know nothing of what i have/haven't owned. same as i know nothing of you but put you in a bookworm catagory, you read more than you have experienced.!

whats more IPD your really starting to fucking piss me off, put me on ignore for the love of someone that gives a shit!

[IPD]

what's parked in my garage at this very moment? what's parked in yours?

now who has more experience on this subject?

[whitedragon]

JohnnyTurbo, you might want to PM xwire before you make any decisions.