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Lighten flywheel 11.8kg to 9.4kg. 

 

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 Post subject: Re: Lighten flywheel 11.8kg to 9.4kg.
Posted: Thu Aug 05, 2010 8:31 pm 
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Looks good dude, and very reasonable cost! Sounds like something i should have done to my flywheel next time the gearbox is out to do the clutch.

Cheers

ToranaGuy

 

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 Post subject: Re: Lighten flywheel 11.8kg to 9.4kg.
Posted: Fri Aug 06, 2010 12:54 am 
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I wish a flywheel would fit on our metal lathe :(

 

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 Post subject: Re: Lighten flywheel 11.8kg to 9.4kg.
Posted: Fri Aug 06, 2010 1:36 am 
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skidder wrote:
I wish a flywheel would fit on our metal lathe :(



There's an idea. I think mine would fit on my g'f's dad's lathe, which is a really big lathe. I should ask him about the idea of machining it down a bit. But once it's done i guess it would need to be balanced again, meaning i would have to send it away & spend up on that part anyway?

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ToranaGuy

 

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 Post subject: Re: Lighten flywheel 11.8kg to 9.4kg.
Posted: Fri Aug 06, 2010 9:49 am 
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Yes, if you had access to a lathe big enough it could be done very cheaply, always a good idea to get a rebalance, Mine was rebalanced and then balanced again with the pressure plate bolted up.

 

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 Post subject: Re: Lighten flywheel 11.8kg to 9.4kg.
Posted: Fri Aug 06, 2010 12:24 pm 
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Yeh a lot of the cost is in the weight being taken off, just getting the flywheel faced and balanced is normally $50, so taking the weight out yourself you'd save $50 odd... depending on the machinist.

 

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 Post subject: Re: Lighten flywheel 11.8kg to 9.4kg.
Posted: Fri Aug 06, 2010 12:34 pm 
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Yeah would definately get a balance if it does fit on (not 100% sure, but have a feeling there's about 50-100mm too little clearance).

Then I would have to make something up to bolt the flywheel to while machining it.

 

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 Post subject: Re: Lighten flywheel 11.8kg to 9.4kg.
Posted: Fri Aug 06, 2010 1:44 pm 
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Modify an old crankshaft maybe.

still not that hard of a job to make something up though.

 

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 Post subject: Re: Lighten flywheel 11.8kg to 9.4kg.
Posted: Sun Aug 15, 2010 12:00 pm 
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krisisdog wrote:
Yeh a lot of the cost is in the weight being taken off, just getting the flywheel faced and balanced is normally $50, so taking the weight out yourself you'd save $50 odd... depending on the machinist.



there is no way anyone is going to surface grind AND balance a flywheel for $50.
Yeah sure you'll get the surface but not he balancing.

 

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 Post subject: Re: Lighten flywheel 11.8kg to 9.4kg.
Posted: Sun Aug 15, 2010 8:21 pm 
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ashcook wrote:
Any news on how this went after installing?

I have a spare Clevo flywheel I'm thinking about getting balanced as it is sitting there and can go in when I replace the gearbox.


Not installed yet, the flywheel like a lot of stuff I have bought/collected is sitting ready to go into my EF XR6 hopefully before or over christmas.

tickford_6 wrote:
krisisdog wrote:
Yeh a lot of the cost is in the weight being taken off, just getting the flywheel faced and balanced is normally $50, so taking the weight out yourself you'd save $50 odd... depending on the machinist.



there is no way anyone is going to surface grind AND balance a flywheel for $50.
Yeah sure you'll get the surface but not he balancing.


These are the costs of the machining I had done, Lighten fly wheel $150, Re face $66 and Balance $55.

 

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 Post subject: Re: Lighten flywheel 11.8kg to 9.4kg.
Posted: Mon Jul 18, 2016 7:48 pm 
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Thought I would add to this post instead of starting a new one..
I have just had a stock EF falcon flywheel lightened and balanced it's to go in a dedicated track car so any weight reduction helps, how much of an effect it will have on drive ability/ performance I'm still to find out next weekend.
Unsure of initial standard weight ( I assume 11.8 kg as before) but we have taken it down to exactly 8kg without the balancing where you can see on the engine side there has been 3 holes drilled near the ring gear.
I'll post back later when see how it goes for anyone else who may be interested in doing this.


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 Post subject: Re: Lighten flywheel 11.8kg to 9.4kg.
Posted: Mon Jul 18, 2016 10:35 pm 
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I'll be interested to know how it goes!

Cheers

ToranaGuy

 

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