how easy would it be to make a light weight flywheel ?

[Cheznutter]

as above how easy would it be to make a new one out of a standard flywheel is it even possible ?

[AdamB]

You can do it by skimming and drilling it, buts its deffinately not something I would recommend, it will put a lot of stress raisers in the material and by the time you pay for the machine work and heat treatments, you could have bought a genuine lightweight one.

[Cheznutter]

how would it work if i were to drill it myself would I be able to take enough weight out of it to make a difference ? or would I be wasting my time I was thinking thatbi could do a load to make available as kind of a group buy.

[daniel_g]

I got a quote of 70 quid from a machine shop to lighten & balance a standard one.

You cant just got drilling holes in it really it has to be balanced with the clutch, or ideally with the crank too.

[Rob H@RCH Engineering]

this is why drilling them and machining them is a good idea lol it gives people something to have a good laugh at!

 

 

http://www.youtube.com/embed/n0TxZFDLa3w

[motion]

my flywheel have been lighten and balanced by a professional to a weight of 8 lbs

mounted since 2 years and about 6.000 km

got no problems.

I have paid 90£

Don't do it yourself!!!

[The Toffinator]

As above do not do it yourself will probably go wrong! My machine shop did mine when they balanced the crank and clutch and they took a hefty amount of material off, they do loads of them and they have never failed before

[Chops]

I cut the flywheel down from 8kgs to about 4.5 with a lathe on my old micra, never had an issue with it after. the micra did die in the end mind you lol (but that was rust)