Originally Posted By: FLORIDA
Yea I seen the aisin kit on rockauto for 146 dollars. If I were to go with this stock kit would installing a lightweight flywheel give a noticeable performance increase?
Lighter flywheel means the engine can rev up faster; but it doesn't add power in the process. The engine just has less mass to accelerate. But it comes at a cost: less mass that retains energy and making takeoff harder. Let the clutch out too fast without enough throttle, and it will be easier to stall.
[I'd also think it may lead to increased NVH--less mass to dampen engine vibrations.]
In a racing car, or one attempting to be one, no problem. Daily driver, and I'm not sure I'd go that way. If anything, I'd be willing to go heavier, for easier taking off, even if it means a bit less "livelyness" when given the boot. Just my opinion.