E30 318IS Flywheel & Clutch Upgrage

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MrWhite
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Thu Sep 30, 2010 12:34 pm

^^Don't see why not, the procedure would be the same as fitting an M20 flywheel to an M42.
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-Jelko-
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Thu Sep 30, 2010 1:49 pm

MrWhite wrote:^^Don't see why not, the procedure would be the same as fitting an M20 flywheel to an M42.
Sorry but my english isnt the best,but do i need drill m20 flywheel or something?Or everything is just bolt on?
MrWhite
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Thu Sep 30, 2010 2:27 pm

I've not fitted one myself so somebody else may want to answer that one. You won't need to drill anything but the flywheel will need machining down to lighten it (the whole point of fitting one in the first place). I think you also need the M20 spacer to go between the flywheel and the engine output flange.
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-Jelko-
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Thu Sep 30, 2010 4:06 pm

But isnt flywheel lighter on m20,doesnt m40 have dualmass one?
Dave_M3
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Thu Sep 30, 2010 4:08 pm

MrWhite wrote:I've not fitted one myself so somebody else may want to answer that one. You won't need to drill anything but the flywheel will need machining down to lighten it (the whole point of fitting one in the first place). I think you also need the M20 spacer to go between the flywheel and the engine output flange.
Don't need that at all. Its only for automatic cars.
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MrWhite
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Thu Sep 30, 2010 4:16 pm

^^Cleared up, thanks Dave.

-Jelko- wrote:But isnt flywheel lighter on m20,doesnt m40 have dualmass one?
You'd struggle to find a dual mass flywheel on an M40 or M42 in the UK. Where are you based?
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-Jelko-
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Thu Sep 30, 2010 4:44 pm

MrWhite wrote:^^Cleared up, thanks Dave.

-Jelko- wrote:But isnt flywheel lighter on m20,doesnt m40 have dualmass one?
You'd struggle to find a dual mass flywheel on an M40 or M42 in the UK. Where are you based?
From Croatia,my 316i is 1/1989,bought from Slovenia when it was new.I checked by the VIN and it does have dualmass flywheel,so i guess this would be an little performance upgrade :D
Dave_M3
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Fri Oct 01, 2010 9:06 am

^^^^^^
If you fitted a 4.5kg JBR fly or similar, 4th gear would pull as well as 3rd gear at the moment.

Might be an idea to fit a different engine to the 1.6 too along with the flywheel though :p
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-Jelko-
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Fri Oct 01, 2010 5:12 pm

Dave_M3 wrote:Might be an idea to fit a different engine to the 1.6 too along with the flywheel though :p
That is plan ofcourse but since i got new set of m20 clutch and rest parts i need i will put it on 1,6...my throw out bearing is rattling like hell thats why i will do this,also searching for good m42,i dont think m40b16 will destroy m20 clutch till i find good one :mad:
no1_jazz
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Thu Oct 07, 2010 2:39 am

Rite guys i have decided with most less faffing about and going out your way to buy new bits and get changing away is to get the standard flywheel lightened down to a reasonable weight. I have come across vision racing developments and build pictures of their lightened flywheels however i did contact them but i have in my bad luck i have had no reply in 3weeks now and coz i am in need of getting the parts soonish i was wondering if there is any other company that deal with the same thing?

Are there any other companies in the UK that sell the lightened flywheel for the M42?
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Brian28
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Thu Oct 07, 2010 7:56 am

Take a photo of what you want and your standard flywheel to any decent machine shop and they will sort it for you, anything from £10 in the lunch break upwards. When the machining is done, off to an engine rebuilders/reconditioners and they will balance it (this bit is optional but sensible)
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mykez69
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Thu Oct 07, 2010 9:53 pm

So, a 318is engine, out of an e36 is, bolted into an e30, with the 325i clutch, needs a m42 starter with the m20 pinion?

please say this is true lol
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mykez69
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Thu Oct 07, 2010 10:49 pm

this might be of help for your conversion too

http://www.blackforestindustries.com/m20flywheel.htm
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aj_mckay
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Fri Oct 08, 2010 7:06 pm

mykez69 wrote:So, a 318is engine, out of an e36 is, bolted into an e30, with the 325i clutch, needs a m42 starter with the m20 pinion?

please say this is true .
Providing you're using the e30 M20 flywheel, yes. I think.
Dave_M3
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Sat Oct 09, 2010 10:57 am

mykez69 wrote:So, a 318is engine, out of an e36 is, bolted into an e30, with the 325i clutch, needs a m42 starter with the m20 pinion?

please say this is true .

Yeah, 325 flywheel and clutch and optional E21 release bearing

325 clutch

325 starter or pinion from 325 transfered to 318iS starter.
M42 rightness above 6500rpm, nobody can hear you scream
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