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Opinion on lightening standard flywheel please


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I am getting a new clutch fitted on tuesday and wanted to know peoples opinion / experience with lightening the standard flywheel.

I have had mixed reports, some say buy aftermarket - which I can't afford right now. Some say a little bit [10-30%] should be ok.

so please if you know from experience I would appreciate any feedback. any costs on cheap aftermarket ones may help too :P

btw: clutch will be Daikin Exedy custom kit with approx 30% more clamping pressure, if that info helps.



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not a good idea. The standard flywheel is cast iron. Cast iron's strength is in it's outer skin, removing this material then renders the item much weaker.

Having a flywheel assembly let go at speed is one of the worst possible situations you can find yourself in. I've seen a few pictures of what happens and it aint pretty.

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Thanks for the info REVto10 ;)

I found a post where you quoted the R33 one as being approx 9 kgs, is my 34 one the same weight do you think?

I have heard a story about this happening on a drag car and cutting the drivers legs clean off...OUCH!

Point taken, I may just buy one like you've got in the future.

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