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AWD to RWD thread, official [Merged 10-7]

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i found this on another forum and found it to be pretty interesting.....hope its not a repost. :thumb:

here's the writeup:

I hear of a lot of guys weilding up the VCU and runing FWD for dyno purposes. I asked a few people why they didn't just run it RWD. They were scared the TC would break. (####ys. j/k... well.... not really... ) But if you think about it it is not the HP or torque going through the TC it's the load that is put on it. If you can break the tires loose before you over load the TC then you will actually have LESS load on the TC. (The static/wheel rolling friction is greater than kenetic/wheel slipping.)

Instead of weilding up a VCU (more expensive part to replace) I just weilded up an extra planetary assembly I had laying around. I weilded the planet gears to the carrier. The planetary assembly is where the torque split occurs any way. The VCU regulates the amount of torque split there is. (Planetary assemblies are cheaper to replace also.) That gave me a locked center diff or a non-varying 50/50 torque split. Then I removed the front diff's ring gear. So there was no place for the torque to go but the rear wheels.

Intially I had some Dunlop SP3000 tires with 2/32" tread left. From a roll in 1st gear I could break the tires lose from 3K to redline. With my new Firehawk SZ50's a can no longer do that. Although I can still spin them with a good launch. It also requires less throttle input to get off the line in daily driving. I am in the middle of a gas mileage compairison. I did get 22 mpg on the highway going 70-80 mph with the A/C on and going into full boost when I could speed up to 80 from 70.
 

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Yes that porsche kicks-ass....


Oh wait this thread is about a 3000gt, well yes that's cool too. :cool:
 
BOOstGhost said:
back on subject... could some do that in a DSM? i don't want to.. just wondering if you could
adam
(Sorry to bring up a dead thread...but this really interested me)
I agree...I would love to know if anything like that is possible on a DSM. AWD is great, but a DSM's is based more in FWD and I would take RWD over that any day.
 
Yes, it's been done before. I think it was Buschur Racing that did it the first time. I'm not sure about the process but I think it involved rotating the engine 90 degrees and stuff like that. A LOT of custom work.. I dunno..can anyone else shed some more light on it?
 
Just pull the spider gears and pinion shaft out of the center diff and it will just drive the rear wheels.
 
i believe Mr. fertez touched on this about the 3000gt but i thought the differential in back and the axles shouldnt support that much horsepower and they would become damaged...i believe thats also why we arent drifting in mitsu's
 
god! this is a old thread. I also Agree with above ^. BUT our cars are used in rallys. And Thats prity hard on the Drive Tran, not to mention our glass sliper Tranny. Its not that our Rear Ends are weak for Drift. Its that our Car is Unbalanced\heavy\under powerd stock to brake the Tires loose right.
 
FunkMasterChipZ said:
i believe Mr. fertez touched on this about the 3000gt but i thought the differential in back and the axles shouldnt support that much horsepower and they would become damaged...i believe thats also why we arent drifting in mitsu's


Shep is running upwards of 1k horsepower, which would mean about 500 to the rear wheels alone. Even if he isn't using the stock rearend, I think the stock rear end can handle quite a bit of power.
 
thekellbeast said:
Shep is running upwards of 1k horsepower, which would mean about 500 to the rear wheels alone. Even if he isn't using the stock rearend, I think the stock rear end can handle quite a bit of power.
he might be......... maybe Welded rear end. for Full Posi. But ever see how he launches???? Its kinda like a Fast slip of the clutch, not like a full out Launch like hes trying to Lift the front wheels off. one thing about turbo it build power slowly compared to a SC on a big block, where the power is instant.
 
If it's that simple to do then that's great...are there any possible side effects to doing this? And do you think the stock rear end could hold 350 WHP or not? Are there any parts out on the market for DSM's that I could use to upgrade the rear end?
 
FunkMasterChipZ said:
i believe Mr. fertez touched on this about the 3000gt but i thought the differential in back and the axles shouldnt support that much horsepower and they would become damaged...i believe thats also why we arent drifting in mitsu's

They have 3 differentials. A front, a center, and a rear. If you modify the front so that no power goes to the front tires, then you only have a RWD. But I agree with what PogiTSI says above about why they aren't being drifted......

-Paul-
 
I've heard of the myth of taking an AWD DSM and making it to RWD...I'm not sure if this is for real but if anyone has heard of it I am interested..I tried to get a mustang gt but insurance was WAY high and killed that thought and I had my 91 talon. I want RWD but I'm not sure if it's completely possible...prove me wrong.
 
Ive heard of people using the Mighty Max drivtrain to do RWD conversions. I know there have been several threads on here about RWD conversions. Just do a search. :thumb:

-mike :talon:
 
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