light weight flywheel

[nickmp0wer]

can the stock dual mass be lightened? its kinda weird to spend more on a flywheel then the engine is worth

[Kilomph]

I'm not planning on replacing my clutch till the end of this coming summer, still has a decent amount of bite left. I've got a stock flywheel, bav auto is selling one for $484, and theres no way i'm paying that much for a flywheel. I know bav auto has good quality shit, but their prices are outrageous sometimes, anybody know of something cheaper? Are there any negative effects a flywheel can have? A buddy of mine was going to get a lightweight pulley system on his 92 325i auto, but decided not to, I forget why but it had some sort of negative effect.

[Rob]

can the stock dual mass be lightened? its kinda weird to spend more on a flywheel then the engine is worth

no one that I know of has tried to lighten a dual mass, most likely because its much less trouble to just convert to a stock single mass.

[Digitalwave]

I'm not planning on replacing my clutch till the end of this coming summer, still has a decent amount of bite left. I've got a stock flywheel, bav auto is selling one for $484, and theres no way i'm paying that much for a flywheel. I know bav auto has good quality shit, but their prices are outrageous sometimes, anybody know of something cheaper? Are there any negative effects a flywheel can have? A buddy of mine was going to get a lightweight pulley system on his 92 325i auto, but decided not to, I forget why but it had some sort of negative effect.

What you need to do is just lighten a stock single mass flywheel. It cost !100 to do mine.

[ryan_george]

Which engines come with dual mass, and which with single mass?

[Rob]

m42/325e: dual mass
325i: single mass

someone please add

[Stu]

You're right Rob. I think early production 325e's also used a single-mass. Someone correct me if I'm wrong.

[george graves]

Whoops - I've got a 17 pound flywheel. Of course it on a m30 motor...

Lightened and rebalanced from the stock 22 lbs (?) - if I had to do it again I'd got for the 533/633 13 pounder.

[Alex Mc]

323 euro flywheels i think are a few lbs lighter than 325i?

[M-technik-3]

323 euro flywheels i think are a few lbs lighter than 325i?

Correct, exact weight, long forgotten thou.

[chrisd]

You're right Rob. I think early production 325e's also used a single-mass. Someone correct me if I'm wrong.

eta's were single mass through 04/86, the month my eta was made.

[e30 gangsta]

how about reliability??? like i push my car very hard.... when u lighten it doesnt is allow the flywheel 2 get damaged easyer???

[Rob]

I've never heard of a flywheel failing under any conditions. anyone else?

[e30 gangsta]

i mean like hotspots or warping i shouldnt worry???

[Rob]

not if you use a quality brand ltw fly or have a competent shop do the shaving.