[A26B]

Originally Posted by HAWAIIZR-1

Hey Jerry,

I'm glad you posted about these flywheel options. What are the differences between the 18# and 22# other than 4# difference? I was about to send in a stock dual mass to Jim J for resurfacing, but really hate how heavy stock is. I definitely never want to consider a Fidanza again as I don't like the sound of all that rattling. Do you have any customers with the 18# or 22# that we can consult with about rattle?

Thanks,
Craig

Hi Craig,

Re: Motive behind the 18# & 22# weights;

18#: (1) Same physical dimensions as dual mass unit & (2) as light as practical, given the dimensional requirement.

22#: (1) Weight inspired by the single-mass, iron flywheels produced by Doug Rippie many moons ago. Many years ago, Doug acquired Camaro single mass flywheel castings & machined the mounting flange for the 8 bolt LT5 pattern. They were very popular, but now very unusual to find one. (2) Having another choice to help bridge the gap between 13# & 37.5# to allow better flywheel mass tuning for driver preference.

Other than 4 lbs, there is no difference.

Re: Customer reference for noise mitigation with 18 & 22# flywheels.
We only have one 18# flywheel sold to date. That sale was to a European customer. Unfortunately, I can no longer access the sales record details to try & contact him to ask about transmission noise. I do remember that he wrote back to say the install went perfectly and he liked it very much. Transmission rattle was never mentioned.