90 turbo wgn. 4EAT to 5MT swap Qs

[Young_02]

I need some additional info, and I would like to hear people's opinions on the swap I am thinking of doing.

 

First, I have a 1990 EA82 turbo wagon with a full time Automatic transmition. This car had a Ujoint go bad and it broke the rear tail housing on the automatic, and would also need a new drive line.

 

We have a parts car, a 1991 EA82 with a 5 speed MT, with the push button 4wd on the shifter.

 

Both cars a 4x4, and both are right here at my house.

 

Instead of fixing the automatic I was thinking of swaping in the 5MT from the other car.

 

I've read Surrealmirage's writeup on his swap, and I've browsed over Legacy Central's site. Both answered most of my qustions, and are great places for information, thanks.

 

But Will I have any problems if I keep the Turbo's engine ECU in the car and use the MT. It looks like I will need to modify it to think it is in Neutral, and that is no problem.

 

Is there anything else?

 

And I want to hear people's opinions if it is a worth while swap (I don't like to drive Automatics!!)

 

Also I have done 2 other AT to MT swaps on a Nissan Skyline, and a Laural, so I am familiar with the process, just not the details with these Subarus.

 

Thanks

[Free Range]

DO IT!

 

 

But stick in a dual range trans (D/R), not the push button (PB), you won't regret it... I've had 2 EA82 turbo's with the 3.90 D/R, now a EJ22 with the 3.90 D/R

 

If you have to use the 5mt PB it'll still be way better than the 4eat, can't loose either way, note the center diff is locked 50/50 on the part time trans

 

N/A cars got the 3.90:1, 85'-89' got the dual range

turbo's: 3.70:1

front axles and rear diffs will have to stay with thier specific transmissions, all plug and play except neutral safety, reverse lights, and cruse cont.

[Ross]

The ECU will work fine in a manual.

 

Definitely worth it, they go much better with a manual.

[electryc_monk]

go look ast my geocities website for images.... or the msn link for pictures of the lift install showing the underside as well... just more visible bolting points etc...

 

 

suggestion? Awe just do it....

thoughts on the tranny swap... have the reciever front end lifted just high enough to slide it under and lift up in it.watch the tail driveshaft angle it'll drain out on ya! gearlube is yucky.

 

as for the install? email or call on my expereinces... i'd surely recomend it.

[Caboobaroo]

ok I finished the 4EAT -> 5-speed swap in my '89 RX. A quick list of parts needed:

transmission

shift linkage

pedal cluster

instrument cluster

clutch cable

flywheel and clutch assembly

driveshaft

center console (for neatness in interior)

 

The transmission will bolt right into place. One thing is you plan on using a non turbo transmission is the fact the axles have a different spline count in the DOJ between the two. The non turbo axles have a 23 spline DOJ whereas the turbo has a 25 spline DOJ. You can replace the axles with the non turbo if you plan on using the non turbo transmission but then the rear diff will have to be swapped out since the turbo and non turbo diffs are different ratios (3.70 - turbo, 3.90 - non turbo). The pedal cluster is probably the hardest part about the swap since you have to remove the steering column to get it out. Its a very easy swap with two people but if you do it by yourself (like I did) it can be a little harder trying to get the tranny into the car. Then remove the automatic shifter and the plate covering the hole which the shift linkage will come though, mount the shift linkage, attact the clutch cable to the clutch fork and make sure everything is tight before you drive off. Also the rear with the driveshaft is the fact that the manual diveshafts are linger then the autos. You can use a driveshaft from any EA82 manual car, be it turbo, nonturbo, single range, dual range, etc. If you have anymore questions, PM me and I'd be willing to help you out on it.