Author Topic: Euro guys...this one is for you. (Read 3140 times)

dude8383 · « **on:** September 20, 2006, 10:23:09 AM »

Who is running the M40 singe mass flywheel? Whats the lowest weight you guys have achieved shaving the flywheel down?

So far I have seen 17lbs...can these things lose anymore weight??

Gunni · « **Reply #1 on:** September 20, 2006, 11:24:41 AM »

Isn�t a shaved down M20 wheel the best option?
228mm over 215mm clutch section, I have a M20 one and it�s only 12lbs or so.
and it REALLY makes it fun

dude8383 · « **Reply #2 on:** September 20, 2006, 02:01:10 PM »

Quote from: Gunni

Isn�t a shaved down M20 wheel the best option?
228mm over 215mm clutch section, I have a M20 one and it�s only 12lbs or so.
and it REALLY makes it fun

yes im considering this option as well...but i want to know whats the lowest the m40 single mass flywheel can go.

Vladi · « **Reply #3 on:** September 20, 2006, 05:10:39 PM »

My ex M40 had a twinmass flywheel. :confused:

dude8383 · « **Reply #4 on:** September 21, 2006, 10:39:11 AM »

i was under the impression that the m40 flywheels were a single mass design...

johna · « **Reply #5 on:** September 21, 2006, 05:09:06 PM »

I fitted a second hand single mass flywheel from a M40.

I weighed each part on a set of bathroom scales. These were the measurements:

M42 flywheel 12.6kg (27.8lbs), clutch and pressure plate 4.4kg (9.7lbs), total 17.0kg (37.5lbs)
M40 flywheel 9.7kg (21.4lbs), clutch and pressure plate 5.1kg (11.2lbs), total 14.8kg (32.6lbs) a saving of 13%

Keep in mind that the M42 items weighed above were all well used and the M40 clutch and pressure plate were new so the difference may actually be a little more.

I spoke to someone in Malaysia who had reduced the weight of his M40 flywheel to 7.7kg (17lbs) which results in a total weight of 12.8kg (28.2lbs), a saving of 25%.

For the record I didn't notice a big difference with my flywheel and if doing it again would get extra weight removed from the M40 flywheel. I still think it is a better option than an aftermarket aluminium flywheel because of the strength and the use of the M40 sprung clutch. It's also pretty much a factory modification. A lot easier to do than the M20 flywheel conversion too.

Vladi · « **Reply #6 on:** September 21, 2006, 05:26:07 PM »

Yes, but the results with the M20 conversion are much better.

dude8383 · « **Reply #7 on:** September 21, 2006, 05:30:43 PM »

Quote from: Vladi

Yes, but the results with the M20 conversion are much better.

yeh yeh, i just bought an m20 flywheel.. so we'll see what happens