M20 Fly wheel

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rich318i
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Post Fri Jun 28, 2013 9:58 pm

whats the worse that can happen if i get all skimmed almost the the ring gear??

is 6.3mm the safe limit?
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jmc330i
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Post Fri Jun 28, 2013 10:17 pm

The ring gear will come away from the wheel. I've seen it happen on non BM flywheels, but I think Magpie has had it happen on his M20 flywheel.

Im sure he reckoned on 10mm minimum I believe.
James
'91 325i Sport
'93 318i touring 16v
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HairyScreech
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Post Mon Jul 01, 2013 5:19 pm

Absolute worst? The flywheel breaks up under high revs and does this:

Image
2.8 development thread http://www.e30zone.net/modules.php?name ... c&t=170822

m3.3.1 m20 thread - now running, chip needed - any volunteers?
http://www.e30zone.net/modules.php?name ... =viewtopic&
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magpie
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Post Tue Jul 02, 2013 12:19 am

see my thread in photo gallery ,last couple of pages has pics of a good lightened flywheel and a bad one .
Image
m52 b30 stroker 6-speed 318is Galvanizer
m42 touring
+ a yard full of scrap turds :)
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rich318i
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Post Tue Jul 02, 2013 2:24 am

how much meat should be taken off the M20 flywheel with access to to sump nutts with the 328i box? anyone?
Last edited by rich318i on Tue Jul 02, 2013 3:16 am, edited 2 times in total.
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Kos
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Post Tue Jul 02, 2013 2:51 am

i took mine down to under 6kg, the weight was taken off the centre by vulcan engineering
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rich318i
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Post Tue Jul 02, 2013 2:55 am

the brands hatch one?

looking for them to remap my car too if its the same people

just need to know how many "safe" mm's can was taken off

what was the cost dude?
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