When Should I Replace The Flywheel

[r33madd]

I am looking at getting a new Exedy clutch will i need to replace the flywheel or is that not something that is needed doing.

or when is a good time to replace the flywheel

[mad082]

just get it machined.

[Munna1]

If you ever wanted to go for a lightweight flywheel now would be a good time to do it.

cheers

[Godzilla32]

If its in a turbo engine light weight flywheels are a disadvantage. A more weighted flywheel helps momentum between gear changes. Keeps the revs up for better turbo response during shifts. Or so i've been told. Just machine your current one to remove the risk of shudder.

[mad082]

a heavier flywheel also helps on launches. if you launch at high rpm a lighter flywheel can make it bog down easier.

so if you like doing burnouts, keep a heavy flywheel.

[insu]

My experiences

Stock flywheel = Easier to launch at lights.

Lightened flywheel (4.8kg) = Little harder to launch at lights, but much nicer to drive everwhere else. Car revs through the range faster, and responds faster on downshifts etc.

Hard to explain, but the car just feels more 'happy'.

As I said, just my experiences.

-Insu

[Cubes]

If its a ceramic clutch they rip the absolute crap out of the stock flywheels. Big grooves. :S

In a nutshell it needed a few more rpm to launch without bogging BUT it was easier to control wheel spin when launching. High rpm gearchanges are noticably quicker, the next gear simply drops in.

Once moving the lighter flywheel made the car feel as if it would accelerate easier/quicker in first. It felt brisker and more willing.

In the higher gears there was no noticable difference to acceleration.. Only in first allthough I swear it made the car feel as if boost snapped on harder in second.

Overall.. On an RB20 that needs all the low speed acceleration it can get its a worth while mod with real benifits that I would do again.

Do remember not to go too light as the flywheel weight isn't as important as where the weight is removed from.

A 5.5kg flywheel that has a heap of material removed from the outer will offer less resistence to spin up than a 4.5kg flywheel that has less material removed from the outer but more from the inner.