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Old 01-11-2017, 09:51 PM   #1
Jdurb729
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M20-flywheel-clutch mix.. will it work?

So I am in the process of putting together my eta/i stroker motor that will be boosted. I have some questions about what flywheel I can use and if it will all work together. The block is obviously an ETA, and I have both a dual mass eta flywheel and a single mass eta(not 325i) flywheel. The single mass is obviously lighter and the preferred choice, especially because I am getting the flywheel lightened and balanced. I am getting the shorter and new flywheel bolts. I will also be using a Stage 3 clutch (F1 racing) which says it is for a 84-86. I have done some research but with everybody saying different things Im not too sure what will work. So im hoping that somebody that has used or knows about the early single mass flywheels will know some info and know if this combo would work. Thanks.
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Old 01-12-2017, 03:46 PM   #2
MR 325
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Why waste money lightening an Eta flywheel?

Run the M20B25 single mass flywheel and a clutch kit matching that application.
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Old 01-12-2017, 08:41 PM   #3
Jdurb729
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Quote:
Originally Posted by MR 325 View Post
Why waste money lightening an Eta flywheel?

Run the M20B25 single mass flywheel and a clutch kit matching that application.
I've read the late model single mass flywheels will not work with eta motors, early flywheels have a pin for tdc, without it the car will not start. Plus I already have the clutch
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Old 01-13-2017, 05:07 PM   #4
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Quote:
Originally Posted by Jdurb729 View Post
I've read the late model single mass flywheels will not work with eta motors, early flywheels have a pin for tdc, without it the car will not start. Plus I already have the clutch
So you're going to run a turbo setup with the antique Eta Motronic system?
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Old 01-13-2017, 10:57 PM   #5
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I was wondering that, too.

Also, which trans? The eta trans is deeper, and may need a longer throwout
for the single mass...

t
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