Rich87

Hi I've got a fiesta rst with a zvh in it, just had the crank and con rods lightened and balanced got them lightened for free as a mate is a night manager at a very good engineering company, I'll be using the c20 ex pistons just wondering if a steel flywheel would be worth it, the flywheel is around £280 and about half the weight as a standard one, just wondering would it make much difference is it worth nearly £300
any inputs will help thanks

ray barker

well worth it if you have done the rest of what you said. especially if its balanced it will help it rev like fuk and be allot smoother doing it

markk

iTrader: (2)

F=ma

Anything you want to accelerate will be faster if its lighter. Simple physics.
What will also happen is the deceleration will also be faster as you have stored less inertial energy. Sometimes this is good, other times bad. Depends on your use.

Rich87

Cheers for the replys yeah I'll buy one just didn't know if it would make a noticeable difference but I suppose it is alot lighter, crank must be atleast 4kg lighter aswel so hopefully rev like f₩¥k
thanks

markk

iTrader: (2)

On mine factory flywheel is around 13kgs iirc, mine is now 3kg

Rich87

I think the fiesta one is just Under 10kg and a steel flywheel is 3.4kg, has yours made a big difference ?

markk

iTrader: (2)

Yes, revs so much faster, but,my car is a rally car, not a road car.