tobytaylor

I am putting a new Centerforce clutch in my 90 GT and sent the flywheel to the machine shop to be resurfaced and they found cracks in it. So I am going to replace it. Is there a real advantage to Aluminum vs. Steel? Any help is appreciated...

AdderMk2

some people will tell you that the car will be hard to get to idle with an aluminum flywheel. and while I agree that the lighter rotating assembly will slow down quicker and CAN cause stalling if the IAC isnt working properly, I do not agree that its faulted by the aluminum flywheel.

I run one in my car, and I dont have any problems. No chattering clutch, no stalling, no bucking etc.

if your car is just going to be used on the street, and DD type stuff, just keep a steel flywheel

RODRIGUEZ

+1, Keep the steel fly If its not a track car....

No need to risk what was stated above for a measly 10-20 pounds

projectresto83

+the price difference. Money can be better spent elsewhere.

mjr46

if his car is running properly , he's not risking anything, I've run 2 of them in seperate cars, no issues, but IMO JUST KEEP THE STEEL FLYWHEEL, it's a cheaper investment for your needs

nacanitihs

it will also be easier to stall the car while starting off but you will learn it. but just keep the steel like everyone else said

mjr46

says who??? you'd be suprised if you drove mine, if I didn't tell you , you'd never know the difference

Jfsram

Even a track car can benefit from a heavy flywheel.

If it's the type that leaves off the limiter the intertia of the heavier wheel will help launch the car. You need serious traction and not a T5 for that level of play.

nacanitihs

lol well thats the point of the flywheel. to store rotational energy. a lighter flywheel will have a lower moment of inertia and therefore make it easier for the engine to stall vs a heaver one with a higher moment of inertia.