Originally posted by Etylorcen
I actually prefer chromoly flywheels. Maybe its just the strength of it that really appeals to me. My car is boosted and I run it pretty hard, so with lots of torque and heat, aluminum will eventually warp. With a quality made chromoly fw you shouldnt have to worry about the starter chewing up the teeth on it. I think only jun and spoon had this problem. Some good chromoly fw's are comptechs, todas, and exedys.
Right you are. Some of the earlier Jun/Spoon flywheels teeth were designed differently than most of the bseries starters. I believe the JDM B16 starter was the only one that matched teeth.
The aluminum used in these flywheels is extremely strong. Warping/shattering really isnt a reality when using a well engineered aluminum flywheel. Its true, Chromoly steel is physically a stronger metal, but usually is heavier than an aluminum flywheel, and much pricier. Lighter is better, and why spend extra $ on something that you dont need? Dont get me wrong, a lot of guys like their Chromoly FW's, and the Toda is very nice, I just dont see the need for it.