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Old 02-10-2005, 09:51 PM   #1
paintbalinpaul
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Default RWD clarification

Ok guys i need a new tranny and want an rwd. I heard u could get a center diff. that u could change between rwd/awd easily. Dont know if this is true or not thats why i am asking. I HAVE to have a strong, bullet proof, tranny that wont break no matter what. From what i understand i will need front/rear axles, new center diff., and rear diff. What should i do and how. SHould i get a local tranny shop to do it or a more known proven name/business. About how much will it cost, i am thinking around $6,000. Please help me with your input.

P.S. I have searched.
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Old 02-10-2005, 10:37 PM   #2
Uncle Scotty
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....awd....AND rwd......no.

Take your pick, either/or....not both.

An STi 6-speed may be the best bet.

Just exactly what are you trying to accomplish, anyway???
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Old 02-11-2005, 05:14 AM   #3
ncarn8
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You can buy a kit that makes your car rwd only.
You change back to standard for awd with an hour or so and jack stands.
Buying a dccd centre will allow you to split torque, but it wont allow full rwd only.
So the choice is yours.
It is possible to mod your transfer case to allow rwd then switch it to awd, however it is difficult and expensive, definately not cost effective. Read custom setup = $$$.
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Old 02-11-2005, 06:10 AM   #4
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For instructions on how to convert to RWD go to www.clubwrx.net and search for RWD conversion. There is a complete write-up with pics, it is very simple to do and will cost $50 for welding and $25-30 for new tranny juice. If you want to switch back and forth just get a second center diff. The "kit" is not needed.
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Old 02-11-2005, 12:29 PM   #5
paintbalinpaul
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Yeah i have seen the thread and all about converting with welding, i think its sorta bootleg tho. Let me see if i can find a thread where i saw someone say somethin about the switching thing. SUV's can do why not a car. I am tired of awd, the 02 tranny is a peice of **** and cant hold anything, i have had problems with it since day 1 and i am still stock(pretty much). And to burnout by a muscle car with an import, is a feeling like no other, to me anyways.
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Old 02-11-2005, 12:34 PM   #6
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Quote:
Converting a Subaru to rear-wheel drive can be done in a number of different ways. The two most common solutions involve either completely locking the stock center differential, then removing the front axels, or by swapping out the center differential for one like the Design Craft part (www.designcraftfabrication.com). Typically, a center differential is locked by welding the spider gears into as solid mass, which is not particularly reversible procedure. Next, the front axles must be unbolted from the stub shafts in the hubs, and the axles removed from the transmission.

Locking the center differential is key; if left to its own devices in a situation where the front axles were removed, it would just spin freely, sending all the engine’s power to the unmotivated front wheels. The viscous coupling would make an effort to shift some of the power to the rear, but ultimately would either seize or grenade.

In contrasts, Design Craft claims its center diff can be installed by the average mechanic in about half an hour. Replacing yours tock diff and viscous coupling should take about the same time. By disabling power to the front axles within the center diff, there’s no need to remove any other parts, and converting back and forth between AWD and RWD is a snap.

The rub, of course, is the rear output shaft was only designed to handle half the stock engine’s power. Put all the power through that shaft, then nearly double the stock output and you have one very stressed output shaft.

After several successful drift outings, the output shaft finally snapped as soon as we pointed a camera at the car and yelled “Light’em up!”

So this is the end artical of the story "The Beauty of Two-Wheel Drive" in Sport Compact Car April 2004*Volume 16, No. 04.

Under his drivetrain mods it states the following:

Design Craft Fabrication center diff
STi three-puck metallic clutch
KAAZ rear dif
Kartboy short-shift kit

This was all for a 2002 WRX wagon.

I'm not saying to do any of this. Just pointing out what the artical said so that you can make a decision for yourself.

Good luck and if you have any questions or if you want me to photo copy the artical and send it to you just let me know.

Late,

Lowball.
From clubwrx(link is wrong i guess)

http://www.clubwrx.net/forums/showthread.php?t=94329
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Old 02-11-2005, 01:07 PM   #7
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Quote:
Originally Posted by ncarn8
You can buy a kit that makes your car rwd only.
You change back to standard for awd with an hour or so and jack stands.
Buying a dccd centre will allow you to split torque, but it wont allow full rwd only.
So the choice is yours.
It is possible to mod your transfer case to allow rwd then switch it to awd, however it is difficult and expensive, definately not cost effective. Read custom setup = $$$.
There is no way that most of the people on here could pull the trans, and break it open, and reinstall it in an hour. More like 5-7 hours.
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Old 02-11-2005, 06:24 PM   #8
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Quote:
Originally Posted by mbiker97
There is no way that most of the people on here could pull the trans, and break it open, and reinstall it in an hour. More like 5-7 hours.
You do NOT have to pull the tranny. Simply disconnect the drive shaft, the shifter, tranny crossmember, etc. Take the tail off the tranny and remove the center diff. Simple
I did mine in my garage with a jack and 4 jack stands, takes around 1 1/2-2 hours with airtools.

Kent
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Old 02-11-2005, 08:08 PM   #9
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Quote:
Originally Posted by paintbalinpaul
Yeah i have seen the thread and all about converting with welding, i think its sorta bootleg tho. Let me see if i can find a thread where i saw someone say somethin about the switching thing. SUV's can do why not a car. I am tired of awd, the 02 tranny is a peice of **** and cant hold anything, i have had problems with it since day 1 and i am still stock(pretty much). And to burnout by a muscle car with an import, is a feeling like no other, to me anyways.



......d00d....you shoulda bought a mushstang.....a WRX just 'aint neva gonna cut it fo ya.
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Old 02-12-2005, 03:38 AM   #10
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Quote:
Originally Posted by wrx plus
For instructions on how to convert to RWD go to www.clubwrx.net and search for RWD conversion. There is a complete write-up with pics, it is very simple to do and will cost $50 for welding and $25-30 for new tranny juice. If you want to switch back and forth just get a second center diff. The "kit" is not needed.
I only mentioned the kit if you dont want to mod your centre diff. Although it works, welding it up isnt very refined. IMHO
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Old 02-12-2005, 06:05 AM   #11
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Quote:
Originally Posted by paintbalinpaul
. And to burnout by a muscle car with an import, is a feeling like no other, to me anyways.
So you like showing everybody that you have no traction?
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Old 02-12-2005, 07:51 AM   #12
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Quote:
Originally Posted by sdogg3kgt
So you like showing everybody that you have no traction?
Wanna go to the drag strip? I'll pit my RWD WRX against your AWD.

BTW modding cars kinda requires an open mind
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Old 02-12-2005, 10:23 AM   #13
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kent, did you also remove your front axles? if you've no plans to go back to awd, they would be just adding rotating mass and frictional drag...

ken
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Old 02-12-2005, 01:25 PM   #14
paintbalinpaul
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Quote:
Originally Posted by sdogg3kgt
So you like showing everybody that you have no traction?

.........sure
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Old 02-12-2005, 01:26 PM   #15
paintbalinpaul
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ok well what should i do, i need a rwd tranny, what should i get that will sorta fit.
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Old 02-12-2005, 03:42 PM   #16
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Quote:
Originally Posted by wrx plus
Wanna go to the drag strip? I'll pit my RWD WRX against your AWD.

BTW modding cars kinda requires an open mind
I'm very open minded. I just don't see the point in burn outs.
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Old 02-12-2005, 06:00 PM   #17
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Quote:
Originally Posted by sdogg3kgt
I'm very open minded. I just don't see the point in burn outs.
Ahahha i just had a big discussion about this with mates, noone can really say whats so good about them. One thing is consistant throughout, they start off saying wow burnouts are awesome etc etc, they buy an AWD, then they all say burnouts arent anything more than a waste of money.
SMOKING DMAGES YOUR WEALTH

WRXPLUS - how much better do you find the RWD conversion?
Acceleration?
Chassis balance of a neutral AWD chassis with only RWD?
Im curious to hear what it did to your model. Thanks
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Old 02-13-2005, 12:47 AM   #18
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MRT now make RWD conversion center diffs for anyone that is interested...
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Old 02-13-2005, 08:21 AM   #19
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Quote:
Originally Posted by ncarn8

WRXPLUS - how much better do you find the RWD conversion?
Acceleration?
Chassis balance of a neutral AWD chassis with only RWD?
Im curious to hear what it did to your model. Thanks
I'm an old guy and I've had many 'Ford' vehicles. The chassis balance and rigididity of the wrx is optimal for a RWD. I've tossed the rear end out at 70mph on wet roads and had complete control and have never spun the car. I can't say that about the 'Ford' vehicles that I've had, I can't even say that about the 02 S-2000 that I had before the wrx.
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Old 02-13-2005, 08:36 AM   #20
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Quote:
Originally Posted by ncarn8

WRXPLUS - how much better do you find the RWD conversion?
Acceleration?
Chassis balance of a neutral AWD chassis with only RWD?
Im curious to hear what it did to your model. Thanks
I'm an old guy and I've had many 'Ford' vehicles. The chassis balance and rigididity of the wrx is optimal for a RWD. I've tossed the rear end out at 70mph on wet roads and had complete control and have never spun the car. I can't say that about the 'Ford' vehicles that I've had, I can't even say that about the 02 S-2000 that I had before the wrx.
The other aspects of handling are much improved, steering is lighter and quicker. BTW I did remove the front axles the same day I did the rest of the conversion.
Acceleration-First of all when you convert to RWD you have to learn how to drive the car all over again, launching is an experience, but if you can get it right and hook-up, then the acceleration is improved. I haven't dyno'd so I have no idea what power I'm making, but several wrx & sti owners have have ridden shotgun and they were all in awe of the acceleration and handling.
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Old 02-13-2005, 10:41 AM   #21
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Great info!
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Old 02-14-2005, 08:11 PM   #22
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nice nice, still dont know what i need to do i am kinda dumb when it comes to this stuff. Should i go to tranny shop and have them build me a transmission, or upgrade my stock one or what.
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Old 02-14-2005, 08:20 PM   #23
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the gtr-700 over at www.exvitermini.com can switch from rwd to awd with the flick of a switch, big burnout to warm up the tires, then awd launch good stuff, but its a skyline
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Old 02-15-2005, 06:47 AM   #24
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Quote:
Originally Posted by paintbalinpaul
nice nice, still dont know what i need to do i am kinda dumb when it comes to this stuff. Should i go to tranny shop and have them build me a transmission, or upgrade my stock one or what.
I'd suggest doing the simple conversion to make sure a RWD subaru is right for you. That way if you don't like it, it'll only cost you the price of a center diff. to return to AWD.
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Old 02-15-2005, 04:26 PM   #25
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ok well i know i want rwd and need a tranny for 400hp. now what should i do, and 1st gear on my tranny now is broke and i just got a new clutch
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