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Old 06-30-2003, 06:01 PM   #1
Imprezd
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Default USDM ej20 vs. Usdm ej18 Flywheel

Does anyone know the differences between the flywheels?

Imprezd~
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Old 07-01-2003, 02:19 AM   #2
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Besides the fact that they are uncompatible?

Well, the ej18 flywheel aparently has a different offset, and is also a less complicated flywheel and weighs about 10lbs less. (learned this via when I had my flywheel and clutch replaced)
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Old 07-01-2003, 07:13 AM   #3
Imprezd
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what did you end up using for a flywheel & clutch setup?
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Old 07-01-2003, 11:16 AM   #4
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abit of clarification please

the flywheels are not interchangeable -to the clutch

afaik there are 3 types of subaru flywheel/clutch

#1 push friction disk is 8 1/2 wide (most all cable based manuals)
#2 push friction disk is 8 7/8 wide (most hydrolic manuals)
#3 pull - legacy turbo,wrx,STi,forester XT (see a pattern?)
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Old 07-01-2003, 04:26 PM   #5
Imprezd
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Good info... Jaxx..

Just one question though i thought that the WRX was Push since the the Slave pushes the clutch lever..


Hmm but at the same time it would percieved to be Pull because it pulls the TOB from the clutch.

Basically i am trying to get clarification on will the WRX flywheel and clutch work with the 1.8 tranny.

I know i will have to convert it to the Same type of hydraulic system.

Thanks,
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Old 07-01-2003, 06:08 PM   #6
Jaxx
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hmm dunno for sure but i belive
i believe that all you have to change clutch forks and slave cyl

Quote:
at the same time it would percieved to be Pull because it pulls the TOB from the clutch
correct

Quote:
I know i will have to convert it to the Same type of hydraulic system.
actaully no.. you don't
you can use either push setup as long a you use the entire system
flywheel/presure plate/clutch/tob/clutch fork

if you want to use the wrx clutch/flywheel combo you will tho

after much tribulation i am using an RS flywheel with an upraded exeedy clutch with an cable clutch fork and cable linkage
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Old 07-01-2003, 10:08 PM   #7
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I asked this question a few months ago and now know that the push type clutches must use the the push type trannies and that the pull type and suppose to use the pull type. I am looking to do the engine swap and am going to be using the ej18 flywheel and ACT clutch for the push type engines. It is suppose to bolt right up to the engine.
Hope this is helpful,
Micah
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