Thread: Bristol engine Rocker arm ratio
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Old 17-11-17, 11:16 AM
Geoff Dowdle Geoff Dowdle is offline
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Join Date: Jul 2008
Location: Sydney, Australia
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412usa,
The rocker ratio is 1.5 to 1.0 .
So for example the cam lobe lift is .200 inch , the valve lift will be .300 less the valve clearance .

Geoff
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