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Old 07-01-2003, 01:39 PM   #1
mdot
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Default rear engine awd?

it's just a pipe dream, but i have an idea i'm contemplating.

i know on a regular rear wheel drive car (engine up front) that the rear diferential can determin which way the rear wheels spin. i.e. if you think about the rear wheels spinning clockwise to drive the car forward, if you flip the rear differntial over (about the drive axel) the wheels will now spin counter clockwise driving the car backwards.

here is my thought...if i build a new chasis that holds a subaru engine in the rear, can i just flip the front and rear diferentials so the car will drive forwards?

don't consider the steering issues, or the fact that the transmission's "standard H pattern" would be backwards, i'm just wondering about the differentials...
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Old 07-01-2003, 03:22 PM   #2
Jaxx
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you would need a differnt transmission case to "flip" the front diff

might be easier and cheeper to buy a porsche 4s
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Old 07-01-2003, 06:04 PM   #3
mdot
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guess i couldn't just flip the gears inside the front diferential...

oh well. like i said...just pipe dreams.
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Old 07-01-2003, 10:15 PM   #4
Homemade WRX
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it's a pipe dream here to and you need to flip the gears around all together because they start off spinning in the wrong direction. I've been looking to make it a mid rear so that the output shaft comes through the front of the engine case instead of the rear. I've been putting in dozens of hours on my cad and finding info on porshe and subaru engines and trannies. for a rear engine set up porshe tranny is the way to go. for a mid rear the engine is facing the same direction and the tranny hangs of the back but ouput shaft runs forward. I'm a few steps ahead of you and am looking to actually build this car. Now how to become Delorean minus the drug problem?.....
Take it easy, Micah
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Old 07-02-2003, 01:39 PM   #5
mdot
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Wow.

sometimes it's nice to hear I'm not the only one with crazy ideas.
wish I was near to see you progress and help out where I could.

Good luck

Andy
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Old 07-02-2003, 04:04 PM   #6
Streetman
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I have no clue how to do it, but I have been planning on a rear engine AWD dune buggy or sand rail something since before buying my car. My thought is an open cockpit look like people used to do with VW's. Just this one has my little 1.8 H, and AWD, and Outback suspension for light off road fun. Oh yeah, and roll bar.

Keep me posted on how this could be done. I'm looking at swappng engines before snow flies. Oh yeah, to be clear, I'm talking about using my entire drivetrain, even including the whopping 14" rims.
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Old 04-11-2019, 08:21 AM   #7
ChicksDigWagons
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http://www.subarugears.com/ offers a custom ring and pinion that allows you to flip the differential inside the 5MT transmission case to do exactly what the original poster wanted to do.

(I realize this post is 16 years old. But it came up in a search and has incomplete and or out of date information so I felt it my duty to update in case anybody else come across this post sometime in the future.)
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