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Old 02-14-2006, 11:09 PM   #1
Homemade WRX
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Question 6-speed drivetrain into a 93-97 impreza

well I'm trying to get a comprehensive list of everything that is needed for this conversion to be done, down to the hydraulic clutch and what to do about the speedo...
so please, let me here it...
of course:
tranny
R180 diff
driveshaft
flywheel
clutch
hydraulic clutch pedal assembly/setup

If I plan to do a full swap, I will need CV's, A-arms, wheels to clear the brakes, hubs and brakes, right?

I can get custom CV's made to use the R180 rear end right? are custom fronts needed, as I know stock WRX fronts fit...will the GC's?

still leaves the question about the speedo...does the electric pick up in the 6-speed still swap out like the later 5-spd trannies?

thanks,
Micah
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Old 02-15-2006, 12:15 AM   #2
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forgot to touch on tranny mounts and sub frame goodies...
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Old 02-15-2006, 12:20 AM   #3
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What year 6spd is it ? If its the older ones, you can use back the stock front shafts but I would go to at least RS ones since I have seen one car already blow both fronts at the same time. Bonus if you can use the GD Sti ones . I don't see a point going R180 unless you go the whole 9 yards with the uprights/shafts/brakes. Speed sensor is like the Wrx 5spds .
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Old 02-15-2006, 09:07 AM   #4
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well, I would want the R180 for the strength as per my opwer goals...buildup after the drivetrain...I would like to do a full 05 swap for the better hubs, BUT does the rest of it make that big of a difference between 02 and 05?...
yes I'm pricing out and planning out doing the whole 9 yards and 02-05 because I still want RWD bias...not sure if the japanese sti's swapped to the fwd bias like the US or not...
oh and so the speed sensor is an easy bolt in fix...thanks
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Old 02-15-2006, 12:36 PM   #5
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well if you go with the r180 you will need
either custom axels or
r180 axels
r180 hubs
r180 brakes

they are differnt
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Old 02-15-2006, 03:03 PM   #6
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To DCCD, or not to DCCD, that is the question.

I know you said rear bias, are you looking to do anthing more than the 35/65?

If so I would add some sort of DCCD control and knob system. If you want auto, a full ABS system would also be on order with the hubs.
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Old 02-15-2006, 03:34 PM   #7
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also, make sure you have a way to lock up the center diff if you plan to be on any dyno besides a dyno dynamics.

Ben
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Old 02-15-2006, 03:41 PM   #8
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Quote:
Originally Posted by Jaxx
well if you go with the r180 you will need
either custom axels or
r180 axels
r180 hubs
r180 brakes

they are differnt
yes, I know...and they did make R180 bit for the GC but only ver 5&6 sti's correct?...so if doing USDM parts, I need there a-arms too, right?
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Old 02-15-2006, 03:50 PM   #9
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i believe only ver 5/6 type R and RA's got the R180 setups. But you may as well just get a full STi rear end, it will be easier to source I would think and it bolts up.

Ben
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Old 02-15-2006, 05:21 PM   #10
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ok apparently it will be fine with no controller on a mustang dyno as well, so I may just not know what i am talking about.

Ben
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Old 02-15-2006, 05:23 PM   #11
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Quote:
Originally Posted by Homemade WRX
I need there a-arms too, right?
no use the gc8 arms er latteral links ..
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Old 02-15-2006, 10:53 PM   #12
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Quote:
Originally Posted by Jaxx
no use the gc8 arms er latteral links ..
if I use the GC8 lateral links, how will the longer USDM STi CV's fit(not going down the road of unatainable JDM market only CV's)?...unless I'm lost and the CV's between the R160 and R180 are different....
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Old 02-15-2006, 11:22 PM   #13
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Quote:
Originally Posted by PHATsuby
ok apparently it will be fine with no controller on a mustang dyno as well, so I may just not know what i am talking about.

Ben
..
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Old 02-16-2006, 12:02 AM   #14
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From V3/4 Sti RA's came with the R180/2pot set up. The rear R180 shafts from the GC are the same length as the GD.
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Old 02-16-2006, 08:40 AM   #15
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Quote:
Originally Posted by Ver.III
From V3/4 Sti RA's came with the R180/2pot set up. The rear R180 shafts from the GC are the same length as the GD.
well, that's good to know, hard to understand how it is, unless the r160 CV's fit the R180....still trying to figure out the difference in CV lenghts

Last edited by Homemade WRX; 02-16-2006 at 08:48 AM.
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Old 02-16-2006, 11:54 AM   #16
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the difference is the diamater and spline count of the ends


ver.III the origional swapper - i have a video of rich's car from 9/12/2000 on my computer
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Old 02-17-2006, 12:28 AM   #17
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I know that the splines are different and yes R180's have been in both generations, but does anyone know as a matter of fact that what Ver.III said about the CV's is true...I just don't see how a car with a longer suspension arm (lateral link) can have a CV that can fit the shorter lateral links...
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Old 02-17-2006, 09:50 PM   #18
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anyone?...
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Old 02-17-2006, 10:48 PM   #19
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I know there is some give in the differential end of the axle allowing it to extend and contract with the suspension geometry. There may just be enough of a tolerance that it works well enough not to ruin the axles. I know swapstar spoke of the dimension of the difference. (I can't remember for sure it was the rear though.) I will be using STI front axles with my 6 speed on GC length arms. The front is track on a GD is wider as well, but the axles have worked for people.
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Old 02-17-2006, 11:33 PM   #20
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Quote:
Originally Posted by UTCiv
I know there is some give in the differential end of the axle allowing it to extend and contract with the suspension geometry. There may just be enough of a tolerance that it works well enough not to ruin the axles. I know swapstar spoke of the dimension of the difference. (I can't remember for sure it was the rear though.) I will be using STI front axles with my 6 speed on GC length arms. The front is track on a GD is wider as well, but the axles have worked for people.
yeah, I know that for our FSAE car we have to calculate our shaft lengths along with our a-arms...I guess there just is slack in the system...well, if it works, then I'm doing it
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