Anyone seen thes? An (expensive) alternative for those that don't want to lighten their standard flywheels:

http://ttvracing.com/product/fiat-f...=flywheels&engine=fiat-fire&manufacturer=fiat

I had one on a Twin Spark 155 and it was the best mod I've ever done, revved like mad.

Dropped them an email and it's for the 180mm clutch and weighs 2.9kg! Might see if they can do a 190/200mm version, am I right in saying it's just the diameter of the friction surface that's different between the three sizes?

It's £300 though :bang:

Also may be worth pricing up a paddle clutch plate. Because if weight is what you don't want, then a 180mm sintered four paddle will weigh less than a standard 200mm friction plate. It will also take the abuse a bit better.

2.9kg is hellish light. Are you sure it will still idle OK at that. Good job you're in the Midlands where its flat. It would be a swine around here, that's why I left my flywheel standard. Too many damn hills.

I know my fly is 3.1 area , and i have no problems with hills ... , Looks a good site that ,

The full website: http://ttvracing.com/

I never had problems with the idle or hills on my Twin Spark 155.

Got hold of a 1.4 16v block which I'm gonna rebuild so might get one and a Helix clutch at some point, lottery win first I think!

Huwbishop said:

2.9kg is hellish light. Are you sure it will still idle OK at that. Good job you're in the Midlands where its flat. It would be a swine around here, that's why I left my flywheel standard. Too many damn hills.

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I'm fairly sure that the whole "lightened flywheel, worse with hills" thing is a bit of a myth. In my experience with my 3.2kg flywheel, it was actually slightly better on hills, less load on the engine. Also, it made a huge difference to the way it revved. I see no downside to a lightened flywheel (in most cases). Everybody i've asked, has confimed that they didn't struggle with hills either.

Idle was good too.

Razman said:

I'm fairly sure that the whole "lightened flywheel, worse with hills" thing is a bit of a myth. In my experience with my 3.2kg flywheel, it was actually slightly better on hills, less load on the engine. Also, it made a huge difference to the way it revved. I see no downside to a lightened flywheel (in most cases). Everybody i've asked, has confimed that they didn't struggle with hills either.

Idle was good too.

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I agree too.
I think a heavy flywheel is better for low revs town driving though to slow engine response. I found a lighter one is better for quick gear changing as the revs drop faster and you don't have the jolt from a large energy charged mass when the clutch engages fully.

What does the standard flywheel weigh? Can't afford this anyway, just curious as to the weight shed.

ukmh said:

What does the standard flywheel weigh? Can't afford this anyway, just curious as to the weight shed.

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180mm flywheel is 6.7Kg
190mm = 8Kg
200mm =7.2Kg