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2000 Subaru RSTI
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Yo i'm also in the MD area. Where in MD r u located? O btw, where did you get all the trims? Im trying to get my car whole car repainted in the spring/summer time and trying to replace everything while it's out. Do u have part numbers?
 

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2000 RS Coupe
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100 Posts
Discussion Starter · #63 ·
Powertrain was out of a JDM 02 WRX:

Engine: EJ205 w/ TD04 turbo, TGV's present
Transmission: TY754VBBAA 5-speed 4.444 FD with matching rear differential
ECU: GDA WRX NB A type(00.9-01.9) MT V7 5MT205 22611AF471
 

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2000 RS Coupe
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100 Posts
Discussion Starter · #65 ·
The differential I received looked pretty rough, but seems mechanically sound. It was very rusty, was missing a bolt, and had a cracked differential cover. I opened it up and inspected it. I verified the tooth count to make sure it was indeed a 4.444 diff, inspected the bearings for play, and looked for any damaged or overly worn teeth. Everything looked good inside. I cleaned up all the rust and painted the housing black. I installed a new cover, oil seals, o-rings, breather cap, and all new bolts, plugs, and studs. Its looking pretty fresh.

 

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2000 RS Coupe
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100 Posts
Discussion Starter · #68 ·
I got the engine and transmission separated today. The flywheel and clutch look pretty rusty so I plan on replacing those. I cleaned up the transmission bell housing, and installed new output shaft and axle seals.



Any recommendations on pull-style clutches? I'm not really looking to exceed 300WHP any time soon, so I think a stage 1 organic would fit the bill nicely. This isn't going to be a race car (yet), so drivability is important. I'll be sticking with an OEM weight flywheel. I've been looking at the following:

Exedy Stage 1 Heavy Duty Organic - 319 wheel torque
ACT Heavy Duty Street - 430 crank torque
Xclutch Stage 1X Organic - 480 crank torque
 

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2000 RS Coupe
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100 Posts
Discussion Starter · #70 ·
While I'm waiting on my flywheel and slave cylinder to get here, I've been working on upgrading to the 06 WRX 4/2 pots. Instead of using the adapter brackets in the rear, I opted to replace the backing plates with the 06 WRX ones for a more OEM look. While I was down there I replaced the bearings, hubs, and parking brake shoes and components. For rotors I used Brembo 06 WRX OEM replacements.





 

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2000 RS Coupe
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100 Posts
Discussion Starter · #72 · (Edited)
I got the old 5 speed out. It had a lot of overspray on it from my paint job, the usual clutch dust, and the TOB was complete trash. It had about 158k miles on it. I originally bought it from enginesong on Nasioc back in 2015 to replace my original trans which froze up. I had the stealership replace it for me back then 🤮. I've had zero problems with it since.

I'll be starting install on the WRX transmission tomorrow. The plan is to swap in the transmission first with the existing RS engine and test it out for a while. That will keep the car driveable while I work on refreshing the EJ205.

 

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2000 RS Coupe
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100 Posts
Discussion Starter · #73 · (Edited)
I've got the transmission installed and everything buttoned up. I took it for a test drive and everything seems to be working fine, except shifting into 3rd and 5th can be a bit sticky at times. I'm hoping it will loosen up over time given the transmission has been sitting for who knows how long. I ended up purchasing an XClutch Stage 1 clutch and chromoly flywheel combo. XClutch is a fairly new brand in the US, but is very well regarded in Australia. I figured the community could use some more reviews on this brand so I took a chance. So far the clutch feels great with OE feel. It does grab close to the floor, but I did change out the entire clutch system and it could use some adjustment. Here's a list of parts used:

XClutch Stage 1X 02-05 WRX clutch.
XClutch chromoly flywheel 13.42lbs
02-05 WRX clutch master cylinder
02-05 WRX clutch hard line
Reused slave cylinder on WRX transmission
STI stainless clutch line
Reused Group-N trans mount
Group-N pitch stop
Starter from the WRX transmission
New shifter linkage
iWire NA to Turbo transmission adapter :)

Some pics:





 

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2000 RS Coupe
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100 Posts
Discussion Starter · #76 · (Edited)
I started on the engine refresh. First I upgraded the oil pan, baffle, and pickup to the 04+ STI version. Next I'll be doing the head gaskets and replacing every gasket and any rubber or plastic parts. I'll be leaving the short block intact since it has passed compression test.





I'm still having shifting issues with the WRX 5-speed. 3rd and 5th gears continue to be difficult to shift into. I've tried changing gear oil to Motul 300 with little effect on gear change smoothness. I have a new Cobb shifter on the way to rule that out as well. I don't suspect that will help much, since it shifted just fine on the old 5 speed. Here's a rundown of gear change difficulty:

Shift into 1st at stop: OK
1st -> 2nd: OK
2nd -> 3rd: Difficult
3rd -> 4th: OK
4th -> 5th: Difficult
Reverse: Normal

While stopped:
1st -> 3rd: OK
1st -> 5th: OK
3rd -> 5th: OK
5th -> 3rd: OK

If the new shifter doesn't fix anything I'll be pulling the transmission to check the shift lever, shift forks, and rails. I hope its not synchros... Any other ideas before I dive in?
 

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2000 RS Coupe
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Discussion Starter · #79 ·
I popped the heads off to check the pistons and cylinders and found a nasty surprise. It looks like water got inside the engine at some point in the past and corroded cylinder 4. You can see corrosion damage on the bottom of the cylinder wall, along with a bunch of pitting. I contacted JDM Racing Motors about the issue and am awaiting a response. Its outside the 30 day warranty period so I'm not sure if they'll be willing to help. If I have to rebuild the bottom end, there's a ton of different directions I could take this build...



 
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