Dual mass or aluminium flywheel?

[Pembo]

Thanks for that info. Sounds better than the AAN dual mass flywheel. I'll get to work removing the dual mass and go 7A for now. I am still tryng to find an aluminium one. Are these as hard to get hold of as it seems?

[S2 Ant]

As above Pembo, speak to Jeffers / Cees, they make them and are v helpful friendly guys, based in Holland.

[Greg_S]

I don't subscribe to the bottom end needs rebalancing theory and it's an age old discussion that I'm not gettting back into.

I've had the flywheel in since mid December last year and it hasn't fallen apart yet.

Ben

Did you change the front pulley or keep the ABY pulley?

[aelred]

You can get a 3B flywheel lightened to almost the same weight of an ally one, same for the 7A. I lost 4.5kg on a 3B one, It could have been used as a Freezbie

[Pembo]

7A is 11Kg or 24lbs less 4.5Kg (10lbs) equals a new total weigh of 6.5 kg or 14lbs.
Aelred, who did the machining for you? What is your advise on the rebalancing of the engine?

[Greg_S]

Also what flywheel weight would you recommend for say 300hp, 375hp, 450hp, 500+?