I have the Fidanza alum flywheel. It is a nice piece, and you do not need to balance it. I did not balance mine. I would, however, not get one again. It makes it tough to drive as a daily, and I did not notice any difference in power.
There are better ways to loose rotating mass.
Such as? I suppose you could go with lighter rims and an aluminum drive shaft.
^I'm wondering the same thing.
Yes you will see bigger gains from lighter wheels and I guess for an underpowered car I do agree for true competitive drag racing you probably want some more weight behind the engine to help it actually pull off the line.
I also guess it makes it "easier" to drive daily. But If you actually know how to drive a stick shift car, it's really not that bad especially in a Mustang that actually does make some bottom end tq unlike my SHO. Not many people can drive my SHO right off the bat, but you get used to it. The damn thing revs like a sport bike now, it's pretty amazing and I love that I can shift it that much faster.
In a nutshell, here's my overall opinion. If your stock flywheel is good, just stick with it and save the money. If it has heat cracks like mine did, buy an aluminum one, not a stock replacement. But as said above even a lighter steel one would be fine and probably a good compromise.
The one thing I did notice with my SHO is with a really heavy clutch, it was actually contorting the aluminum flywheel and causing hard shifting. I doubt that would ever be the case with a Mustang, but swapping from a stage 3 to a stage 2 fixed my shifting issues as well as keeping the stage 3 and using the stock steel flywheel.
