I'm currently restoring a 610 from 1975. It is an original SSS, and while planning everything I realize it would be nice to have thoughts and questions and feedback collected in one thread.
Today I'm thinking about flywheels. I will not do any dramatic changes to the original car. Its will get the original color and original interior etc. However I've found a L20B engine to replace the original L18. The engine comes without flywheel. I understand that the L20B had a 200mm flywheel in 610s, and bigger and heavier 225mm in 620s because the latter is more of a workhorse. My L20B came from a 620, but my car is not gonna pull a trailer or carry something heavy. Its just gonna pull itself and me and my friends in it, and preferably in a lively manner. So I'm thinking that the flywheel should be lighter than the original flywheel from the 620. But how light should I aim for?
The car is for hassle free street use, weekend trips, and hopefully some winding roads.
I would appreciate some thoughts on what flywheel I should be looking for. Thanks