Converting tranny to run FWD (READ BEFORE YOU FLAME)
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Converting tranny to run FWD (READ BEFORE YOU FLAME)
Ok to start this off and to end the flaming. I DO NOT HAVE AN EVO.
I have a 99' galant which I am running a built 4G64 w/EVO VIII headswap, AEM EMS and all the goodies.
The tranny that was in my car is from a 2001 Eclipse GS FWD, it had a fresh stock build and quaife LSD, that setup handles around 400whp reliably. I am now pushing it up to around 600whp so I sold that tranny and here is the plan.
I want to stay FWD, I am aware I can fairly easily swap to AWD, that may come next winter when I have down time.
I bought an EVO8 tranny, axles, hubs, starter etc. I know physically the tranny fits in the car, the axle length and all that stuff is good. For the transfer case, I will be running just the front section of the transfer case with the diff carrier and a block off plate to cover the back of the transfer case (where the center section used to bolt up) and the pinion gear is removed. The ring gear will be left on the carrier to sling the gear oil around.
I have some upgrade parts too that im installing including the Pfitzner diff tube, WaveTrac front LSD and a 4.11 final drive setup.
Here are some of my questions. I dont have a good grasp on how the center diff on an EVO works. Will I have to weld the center at all in order to make the trans FWD only? If I dont weld the center diff, will I be somehow losing power that would elsewhere drive the rear wheels?
Please if you dont have any first hand knowledge of the internals of this tranny or relative experience to the questions at hand, dont respond. I am looking for the guru's for help with this, thats why it posted in the advanced area.
I have a 99' galant which I am running a built 4G64 w/EVO VIII headswap, AEM EMS and all the goodies.
The tranny that was in my car is from a 2001 Eclipse GS FWD, it had a fresh stock build and quaife LSD, that setup handles around 400whp reliably. I am now pushing it up to around 600whp so I sold that tranny and here is the plan.
I want to stay FWD, I am aware I can fairly easily swap to AWD, that may come next winter when I have down time.
I bought an EVO8 tranny, axles, hubs, starter etc. I know physically the tranny fits in the car, the axle length and all that stuff is good. For the transfer case, I will be running just the front section of the transfer case with the diff carrier and a block off plate to cover the back of the transfer case (where the center section used to bolt up) and the pinion gear is removed. The ring gear will be left on the carrier to sling the gear oil around.
I have some upgrade parts too that im installing including the Pfitzner diff tube, WaveTrac front LSD and a 4.11 final drive setup.
Here are some of my questions. I dont have a good grasp on how the center diff on an EVO works. Will I have to weld the center at all in order to make the trans FWD only? If I dont weld the center diff, will I be somehow losing power that would elsewhere drive the rear wheels?
Please if you dont have any first hand knowledge of the internals of this tranny or relative experience to the questions at hand, dont respond. I am looking for the guru's for help with this, thats why it posted in the advanced area.
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Call John at TRE he has done many conversions, He is selling a used t-case already made for fwd opperation for 300.00
http://teamrip.com/garage.html
http://teamrip.com/garage.html
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The reason being is I was told by everyone and their mother from the day I started this project that the car would never be fast, I should buy an eclipse, I should buy a GVR4, I should buy ****, I should buy that. Then once I was underway on the build everyone said it wont be fast because its fwd, it wont be fast because its a heavy 4 door, etc, etc.
My goal is to run 11's FWD. I just dont like giving up on something I want to accomplish. Especially not when im confident it can be done, my goals are not that unrealistic.
And I did speak to Jon at TRE, I actually bought that transfer case from him, its sitting in front of me as I type this to you.
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![Thumbs Up](https://www.evolutionm.net/forums/images/smilies/smilie_thumbsup.gif)
#11
[QUOTE=VTEC Killer;6846135] Then once I was underway on the build everyone said it wont be fast because its fwd,
[QUOTE]
I hear ya man. Not saying I would not rather have an EVO or a RWD car but fwd can be fun also when set up right.
[QUOTE]
I hear ya man. Not saying I would not rather have an EVO or a RWD car but fwd can be fun also when set up right.
#12
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Last time I looked into this, people were saying the AWD Evo trans wouldn't fit. Were they just wrong, or is there some sort of modification you are doing to overcome this?
But, yeah, getting a AWD trans modified for FWD use should be no problem, as already mentioned. I have been debating wether or not to switch my GS-T over to using a Front-AWD trans because the internals are stronger to start with.
But, yeah, getting a AWD trans modified for FWD use should be no problem, as already mentioned. I have been debating wether or not to switch my GS-T over to using a Front-AWD trans because the internals are stronger to start with.
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Last time I looked into this, people were saying the AWD Evo trans wouldn't fit. Were they just wrong, or is there some sort of modification you are doing to overcome this?
But, yeah, getting a AWD trans modified for FWD use should be no problem, as already mentioned. I have been debating wether or not to switch my GS-T over to using a Front-AWD trans because the internals are stronger to start with.
But, yeah, getting a AWD trans modified for FWD use should be no problem, as already mentioned. I have been debating wether or not to switch my GS-T over to using a Front-AWD trans because the internals are stronger to start with.
The tranny itself isnt really "larger" than the fwd tranny, the only difference is the flanged area where the T-case bolts to the bell housing, maybe it stick back like another 1/2" or so, not a big deal.
#14
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Hmm, that would make a future AWD conversion nigh impossible then without heavy fabrication. I would have thought the drivetrain in a 6A13TT JDM G-VR4 would be bigger and thus fitting a smaller 4cyl/trans combo in the car would be no problem. JDM Galants must be totally different in that regard.
Last edited by GPTourer; Mar 27, 2009 at 03:13 PM.
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Hmm, that would make a future AWD conversion nigh impossible then without heavy fabrication. I would have thought the drivetrain in a 6A13TT JDM G-VR4 would be bigger and thus fitting a smaller 4cyl/trans combo in the car would be no problem. JDM Galants must be totally different in that regard.
I jus went to DogBoxRacing today and dropped off my tranny, transfer case, Wavetrac LSD, pfitzner diff tube and 4.11 final drive gear. Im just gonna have a fresh rebuild and have the gears micronited. I CANT WAIT to put this setup in the car.
Last edited by VTEC Killer; Mar 27, 2009 at 07:10 PM.