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Engine + Driveline / M42 single mass VS M20 single mass conversion
« on: April 27, 2011, 03:22:36 PM »
Hi,
I have a spare M40 single-mass flywheel & clutch set (from my previous broken-down engine). Currently I run a M42 and I don't know what type of flywheel is in. Since they differ by only 2kg I want to lighten it anyway. Following bmwfans.info M42 single-mass FW is the same as M40's. According to this topic, If I find dual-mass in my car I should be able to fit lightened M40's FW right away. Am I right? Is it safe to go ~40% lighter in BMW?
I have a spare M40 single-mass flywheel & clutch set (from my previous broken-down engine). Currently I run a M42 and I don't know what type of flywheel is in. Since they differ by only 2kg I want to lighten it anyway. Following bmwfans.info M42 single-mass FW is the same as M40's. According to this topic, If I find dual-mass in my car I should be able to fit lightened M40's FW right away. Am I right? Is it safe to go ~40% lighter in BMW?