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Old 05-26-2008, 10:08 AM
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Caprimaniac Caprimaniac is offline
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Join Date: Sep 2006
Location: Skjetten, No
Cobra Make, Engine: Unfortunataly ; none
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Default 0 oz/ internal balance- flywheel balancing

Hello.

I'm not an eager poster in any forum, but I look throgh Club Cobra forums for input every now and then.

Now I have a question for those with some engineshop experience......

A new BALANCED, 0 oz internal balance, 347 stroker kit is on it's way from Eagle. I have added ARP 2000 rod bolts as my cam and valvetrain willingly spins to 7500 RPM+.

I have an aluminium flywheel that I wish to use with this combo.

Today I've used a WHEEL balancing machine to check the balance of my flywheel + pressure plate. The machine was set to the dimensiom of flywheel/ pressure plate: 2,5" width and 12"Ø.

This showed 20 grams imbalance on flywheel side, and 90 grams on the pressure-plate side (after removing a few grams with drill and grinder).

My questions are:
Is it possible to balance this thing using this kind of equipment?

And: What kind of imblance is acceptable on these things that will spin around at 8000 RPM? Does it have to be 0 in "all corners" or is soma OZ acceptable?

Hope to get some input on this..... Before I take it to a proper machine-shop!


Rune S.
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