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Old 03-22-2005, 02:13 AM   #1
keirnna
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Default '98 RS 4EAT to 2000 RS 5MT w/ LSD

Okay I did several searches and I just want to verify what I need. This is what I have so far:

2000 RS 5MT with LSD, axels, brakes, clutch, pressure plate, flywheel and driveshaft

RS manual pedal set
Clutch master and slave cylinder
Shift Linkage
Shifter
manual brake booster
Interior Shifter trim plate
MT tranny crossmember assembly
STi transmission mount

I am planning on doing this myself. I want to ensure that I can do this and get no CEL's, have ABS and have cruise control. If I can't do that I am not doing the swap. I will not buy a 5MT ECU for this. Thanks!
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Old 03-22-2005, 12:09 PM   #2
Jaxx
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brakes?
whacha need brakes for?

clutch cable, fluid
which wire to move from neutral to clutch peddle
get the flywheel resurfaced if its not pristine
new TO berring and spring clips if missing
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Old 03-22-2005, 12:12 PM   #3
keirnna
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I don't need brakes, but 99+ impreza's have different rear brakes that I do. The 98's are the only year that have those rear brakes so good aftermarket pads are hard to come by. I will be running WRX rotors in the front, and the 2000 RS set-up in the rear.
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Old 03-22-2005, 12:40 PM   #4
Jaxx
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gotcha
personaly i would do that at another time as it is not really related, just another complication of which you will have plenty already
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Old 03-22-2005, 03:06 PM   #5
keirnna
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So is it possible to do this and have a fully functional car? I would almost prefer not to have abs, but I still want it available on the car. I can alway remove the fuse to shut it off.
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Old 03-22-2005, 04:11 PM   #6
Jaxx
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yup
abs is not connected to the ecu except in the 04-05 sti and VDC legacys
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Old 03-22-2005, 04:58 PM   #7
GTBGUY
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keirnna - the '98 RS rear brakes are physically the same size as the '99-04, only the caliper brackets are different requiring a different pad. Your Fronts and Rears are exactly the same as the '97-99 Legacy GT.
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Old 03-23-2005, 01:31 AM   #8
keirnna
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Quote:
Originally Posted by GTBGUY
keirnna - the '98 RS rear brakes are physically the same size as the '99-04, only the caliper brackets are different requiring a different pad. Your Fronts and Rears are exactly the same as the '97-99 Legacy GT.
Thanks for the info, now the 02/03 WRX has the same pads as the 99+ rs right? I am using front WRX calipers, and rotors. I just want to be able to match up some nice race pads all the way around. It seems that hawk is about the only company that makes decent pads for the car all around with '98 brakes.
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Old 03-23-2005, 01:33 AM   #9
keirnna
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Quote:
Originally Posted by Jaxx
yup
abs is not connected to the ecu except in the 04-05 sti and VDC legacys
Why does it seem that everyone is having problems with their ABS after a swap? I know that the STi's yaw sensor ties everything into the ECU to control brake force.
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Old 03-23-2005, 01:34 AM   #10
keirnna
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Do I need a new MBC or will the auto one work?
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Old 03-23-2005, 12:57 PM   #11
Jaxx
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manual boost controller


bad use of abrievation?
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Old 03-23-2005, 02:12 PM   #12
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Master brake cylinder is what he meant...but no one uses the abbreviation for that here.

I don't see why you'd need a different one going from auto to manual. I thought there was no change for that. Now...that's assuming the 98 uses the same master brake cylinder as a 01...which I think they do.
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Old 03-23-2005, 10:59 PM   #13
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should be the same look on the side it will have the diamater
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Old 03-23-2005, 11:13 PM   #14
keirnna
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I thought that at least the booster was different. I hope not.
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Old 03-28-2005, 09:47 PM   #15
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nope. not any different
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Old 03-28-2005, 10:57 PM   #16
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So the original car is an auto and you are putting in a 5speed . . .

This is not as easy as it sounds. I've had my car in various stages of the swap for three months now. Be sure to look up every little piece and make sure that the MT and AT parts arent different. Some examples: ECU, wiring, ABS hardware, back-up light harness. Having a complete wiring harness from the 5speed car would also be good, or probably one from another 98 RS. The ABS I believe is a matter of having a 5MT ECU and correct wiring to the ABS pump. I'll let you know if I ever get it in my car. As far as I can tell the ABS master cylinder/pump is the only different part of the braking system, I'm sure the ECU calculates the ABS info differently for each transmission too.

Mechanically everything bolts up easily but I'm still not done with the wiring since I cant seem to find any of those harnesses in any junkyards.
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Old 03-28-2005, 11:10 PM   #17
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Well from everything else I have read I can have full functionality without a 5MT ECU. I will sell my car, and just buy an 5MT when I can afford it if I really cannot swap tranny's. I want everthing to work, and not having abs is not an option. I will not rewire the entire car either! I have read all of the posts I can find about it, so hopefully mine will go pretty well.
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Old 03-29-2005, 11:31 AM   #18
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My ABS was lost because of the swap as well as cruise control. Buying a MT ABS module and MT cruise control module should fix these problems. I am going to see if I can just swap over the black box on the ABS pump to see if that will work, but I don't really miss ABS all that much anyway. I have two extra ABS modules here so I'm going to take one apart to see if the electronic bit comes off and the mechanical bits are the same between AT and MT.
And I do not believe the ECU matters for the ABS, the fact that you are losing the TCU is the problem because it communicates with the ABS pump and the AT tranny.
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Old 03-29-2005, 11:50 AM   #19
keirnna
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Have you read the results of some other swaps? From what it seems as long as you block of the correct connections you can have both ABS, and Cruise. I don't have crusie on my car because stupid subaru quit carrying the part! I would like to keep ABS so if let someone else drive my car they will not lock the brakes up and send me to my death, or worse my car to it's death!
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Old 03-29-2005, 11:59 AM   #20
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A)Never let anyone drive your car
B)Never let anyone who can't brake without ABS drive your car
C)I might pull out all of my cruise control stuff, so if you want it PM me an offer for the whole kit
D)If you get anymore info about keeping the ABS or cruise, please let us know

Thanks
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Old 03-29-2005, 12:41 PM   #21
keirnna
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Here is the info on keeping cruise: http://www.legacycentral.org/library...lectronics.htm

I can't find anymore info on ABS. The cruise is model year specific, so yours won't do me any good.
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Old 03-29-2005, 03:16 PM   #22
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I put in a manual ABS pump but am still stuck looking for wiring harnesses.

Regarding the ECU, you should be able to keep yours but just clip the wire to the TCU. I dont know if anyone has reflashes available for the older RSs but I know with Ecutek you can reflash the AT ECU with the 5MT software.

Cruise control parts looked the same for both cars but one of the writeups mentioned it not working because the ECU would think the car is in "P" on the auto instead of in a gear with the 5speed.
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Old 03-29-2005, 03:21 PM   #23
garface
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gtscoob, wiring harnesses for what exactly? I thought you just swap the module and hope it works. And also, the control unit for cruise control is different, so if you swap them it should work, but there's also a way to mod something to get the the AT one to work.
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Old 03-29-2005, 03:31 PM   #24
keirnna
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The guy on legacy central said that there is no difference between ABS units and after the swap his worked correctly. He wired his TCU to still think it was shifting with a resistor, and by doing that his crusie worked also. Here is a link: http://www.legacycentral.org/library...on/convert.htm
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Old 03-29-2005, 03:40 PM   #25
garface
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The ABS units do have different part numbers and says AT or MT on it. But I'm sure there's a way to make an AT one work on an MT.
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