Bubba 95SN

What kind of gain from Fidanza flywheel and FRP aluminum driveshaft? Asking about time. Replacing second gear and while had this apart curious if worth the money. No couch commandos, prefer someone that has these parts to answer.

mjr46

I run one in my 85, and it revs quicker and does not loose a beat between shifts like most myth readers/believers will claim, also when I had my 66 I ran one it it, worked well, IMO it's a last resort mod when you've done everything else to the car you can think of

.boB

The lighter flywheel allows the engine to spin up a little quicker. It's a very small differance, though. It also allows the rpm's to drop faster, too. If you're shifting fast, that's OK. But if you're shifting mellowly in traffic, it's just something you have to get used to.

But, I would have to agree with above. If you need to replace the flywheel, I think alum is a better choice. Otherwise, use the money for something usefull - like gas.

I acn't tell you about the drive shaft, though. I have no experiance.

Jfsram

I'd recommend the driveshaft because besides the up front cost there is pretty much no disadvantage to it.

As for the lighter flywheel. Without knowing every detail about how you launch and shift your car and your combination. It would be hard to answer.

If you launch off idle, it will reduce your et's a tiny bit.
If your car is down on torque and you leave off the limiter a heavy flywheel will actually make if quicker. Same scenario for powershifting.

An aluminum flywheel is also easier on the drivetrain. Aggresive shifting with a heavy flywheel will shock the drivetrain more.

At the end of the day it's a pretty big cost for a minor improvement.