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12-03-2020, 06:18 AM | #1 |
Scooby Newbie
Member#: 519563
Join Date: Oct 2020
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Converting STi 6-speed to FWD only???
I apologize if this has been covered extensively before, but I am very new to Subaru.
We have a 2017 Subaru STi 6-speed transmission (TY856UW1MA) which we are going to use as a rear transaxle for a mid-engine endurance race car. We have seen the push-pull cable shifters that will allow us to shift the transmission in a mid-engine set-up (if you have a recommendation we are all ears). Here is where I need some help. . .the STi has the electrically controlled center differential (DCCD, correct?). We have pulled the ailshaft cover and we see that assembly. Is there a way to lockout the rear output shaft (or defeat the DCCD) so that we can send 100% of the power to the front differential all of the time? I know there are kits/parts that make it easy to do this with the 5MT and non-STi 6MT manual transmissions, but I haven't seen a kit or part to accomplish this with the STi transmission. I know a LOT of people might say why, or not understand why we are doing this. . .the reason is simple. The STi transmission is the best balance of affordability, durability, quality, and ability to handle our intended power level (~400 HP). I know this is possible to be done; I have seen some examples here and there. . .unfortunately the ones I can find did not provide any info on how they went about the conversion and/or I have been unable to contact the individuals directly. Thanks for any and all constructive help!!!
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12-18-2020, 11:11 AM | #2 |
Scooby Specialist
Member#: 29292
Join Date: Nov 2002
Chapter/Region:
SCIC
Location: Orange County CA
Vehicle:2004 WRX wagon silver |
you might want to look into the 818, as it sounds like you have a similar set up, find out what they are doing and just copy it
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07-13-2022, 05:45 PM | #3 |
Scooby Newbie
Member#: 530687
Join Date: Jul 2022
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Converting STi 6-speed to FWD only???
Same question as AtomicJoe23.
Have a perfectly good/wrecked 2019 STi and would like to transplant the 21K mile powertrain into my slightly less wrecked 1970 Porsche 914/Chalon (after ample beefing up of the chassis). Have watched the 818 thread and it seems to be using an earlier tranny. Of course, I can sell the 2019 and go earlier but thought I would ask if some enterprising individual has figured this out. Tried SubaruGears, Bremar, etc. with no luck. Thanks for any and all input/ridicule. |
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