[Jake Raby]

Installing this flywheel removes ALL harmonic dampening of your engine and transaxle..

One person has recently broken a crank... He didn't listen to me when I told him what caused his issue more than likely, so he reinstalled the same flywheel on his new crate engine. Two events later I got another phone call from him stating that he had broken another crankshaft and he should have listened to me. He is now on engine #3 and is broke, so broke that he is having to make one engine from 3 broken cores..

Another engine (2.7 DE car) had a knock, it was pulled apart and had a cracked and breaking crank.. When I threw the assembly for this engine onto the balancer it was immediately 10 grams out of balance, when the pressure plate was added that went to 19 grams and the flywheel was nearly new and had never been touched..

Both of these are in addition to the X51 engine that snapped a crank in half last year, also using a LWFW... There have been two other instances of similar consequence that people have contacted me about since the new year, but I did not see their parts first hand.

Harmonics have to go somewhere... The dual mass was utilized for a reason-Components that are forced to absorb them won't like it.. And it appears that these harmonics also end up being sensed by the knock sensors as possible detonation, so then the ECU retards timing and that reduces HP. I have gathered data that proves that these harmonics that can't be absorbed are directly related to reductions in net power, as much as 5HP in one instance from my test car.

I don't mean to burst your bubble, because you'll probably never have an issue, but it is my obligation to share my experience with the direct development of these engines.. If nothing else I like to stimulate the readers thoughts, because then the common sense might start to kick in....

We are working on a harmonic dampener for the M96 that should help with these issues, but it is not completed as of yet.. Porsche utilized this damper on the 997 engines, so they must have had some reasoning for this....

EVERY broken crank I have seen was broken when coupled to a LWFW, 4 of 5 of them were track cars and 1/5 had never hit the track and it was the worst failure of all..

You may also want to consider that the stock flywheel isn't junk but is just doing it's job... Something is causing the flywheels to fail as it is the job of the dual mass to ABSORB the harmonics and that damages the flywheel's second mass...

Just think about that.. This is the kind of stuff I think about 24/7-

I have whittled flywheels on all sorts of other engines to virtually nothing with no adverse effects, these were not the M96 and these previous experiences of mine, and yours mean nothing.. I have an aircooled Porsche engine that revs 9K that has a 2 pound flywheel installed, the stock flywheel for that engine weighed 16 pounds.. But it isn't an M96 and was not an externally dampened engine..


Thats all I am willing to say prior to my article which is guaranteed to start a flame war, mostly with those that have never touched the internals of an M96, a balance machine and probably don't have a tool box- but they are experts.