Hi,

My brother has a 1991 Spirit R/T that he is putting a high flow exhaust on and already has the FWD Performance Chip. To handle this power he is also putting in a Quaife ATB. I told him to also put in a new SPEC Stage 3 clutch and if the stock flywheel is not aluminum to replace that with an Aluminum one. Anyone know what the stock flywheel is made of and if there is a benefit to going lighter?

Thanks,
Danno

 

Stock one is made of cast iron and wieghs about 25 lbs roughly. To go with a aluminum you would gain a faster reving engine and more horsepower on high end. You do loose some torque from not having the extra weight of it. I wish my budget would allow one for me but maybe someday. Don't worry about lossing the torque since you would have problem geting the car to hook up at start anyways.

 

Do you anyone that makes an aluminum flywheel for the Turbo III motor? Fidanza doesn't have one...

Thx,
Danno

 

Here is a light wieght steel one.
http://www.forwardmotioninc.com/html/catalog/page7.html

 

Hi again,

My brother isn't sure if he has iron water jacket plugs or aluminum. Are aluminum still available for 1991 Spirit R/T so the head doesn't crack?

Thx,
Danno

 

Sorry I don't know. Never mess with TIII motors.

 

I don't know if you can still get aluminum water jacket plugs, but for the 1991 model year they had iron. They switched to aluminum for the 1992 model year.