Do I really need a lightened flywheel?

topcatcustom · Post by **topcatcustom** » Thu Oct 16, 2008 1:06 pm

Sweet, thanks!

topcatcustom · Post by **topcatcustom** » Thu Oct 16, 2008 6:43 pm

Now there are a couple of lightened flywheels on ebay (oh love and hate it)... but they dont look very light! One is supposed to be 20lbs and the other 27lbs but I thought a standard one was about 28lbs!

Post by **katanaman** » Thu Oct 16, 2008 9:24 pm

standard is 33lb I think careful if they are lightened cast fly wheels IMHO they are dangerous but its your feet.

kiwicar · Post by **kiwicar** » Fri Oct 17, 2008 7:38 am

Rover flywheels are getting old, cast iron gets more brittle with age, add this the stress of machining it and you are removing material reducing its strength aswell and you are going to be accelerating it faster and you have a potential explosion on your hands.
Mike
PS I wonder how many government allarms I have just set off with that E word

chodjinn · Post by **chodjinn** » Fri Oct 17, 2008 7:45 am

stay away from cast iron!!!

topcatcustom · Post by **topcatcustom** » Fri Oct 17, 2008 3:45 pm

Thats that one sorted then! Lol I don't think the few mm thick ally bellhousing would stand much of a chance against 30lbs of cast iron being flung at it at 100mph

topcatcustom · Post by **topcatcustom** » Tue Nov 18, 2008 5:42 pm

Could one like this be adapted?

http://cgi.ebay.co.uk/CHEVY-V8-FLYWHEEL ... dZViewItem

Still lookin!

chodjinn · Post by **chodjinn** » Tue Nov 18, 2008 6:22 pm

more hassle than it's worth, by the time you#ve sorted it with machining you probably could have bought a proper Rover one.

How come you didn't buy either of the other two that were on ebay?? They would have been perfect!

kiwi303 · Post by **kiwi303** » Tue Nov 18, 2008 11:54 pm

How do multiplate clutches work? I've heard of them being attached to auto flex plates, which are just a sheet of thin steel sheet.

I presume the pressure/friction surface normally part of the flywheel is instead made as part of the clutch housing?

the auto flex plate holding the starter ring gear seems a lot lighter than a flywheel, so would using a twin disc or multiplate clutch mean the heavy flywheel can be discarded for a lighter flexplate? or do they need special flywheels?

Post by **Rossco** » Wed Nov 19, 2008 8:08 am

Dont know if it helps but I have a new Range Rover flywheel which I'm sure could be lightened.

chodjinn · Post by **chodjinn** » Wed Nov 19, 2008 9:35 am

Multiple clutches just have more than one clutch plate, with a 'second' flywheel in between them etc. The AP Racing one I have has a ring bolted to the flywheel which houses everything, then the clutch cover bolts to that as normal.

topcatcustom · Post by **topcatcustom** » Wed Nov 19, 2008 10:16 am

I didnt buy the lightened ones as decided against going for an old flywheel that has been skimmed due to the possibility of it breaking up and loosing my feet!!! Plus they are not an awful lot lighter than standard so waiting for an ally one to pop up!

I have got myself an AP twin plate clutch

, but I dont fancy bolting it to a flex plate as I just cant see them running true without a bloody great torque converter bolted to it!

chodjinn · Post by **chodjinn** » Wed Nov 19, 2008 10:27 am

you might be waiting a while for an alloy one mate. Mine was the only one I've seen on ebay in two years, but i might have missed one tho . . .

topcatcustom · Post by **topcatcustom** » Wed Nov 19, 2008 10:30 am

Maybe I'l build it up with a std one and when I rebuild it in a year or so (to fit forged pistons when I find some (or the money!)) fit an ally one!

Then I can go for all out power

chodjinn · Post by **chodjinn** » Wed Nov 19, 2008 10:33 am

what about a steel one?? They must be just as good as an alloy one