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Discussion Starter #1
Would appreciate any info related to combustion chamber basics ( size - volume - shape ) in relation to performance .
I often see references to diffirent chamber volume 86cc / 92 cc. / bathtub type chambe - etc. Any info is greatly appreciated.

Thanks - Tom
 

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When I was out to R&R Cycle in August they were welding up quench pads and trying them out to see what effect quench area had on the VE of their engines. They were testing power and hydrocarbon emissions. I noticed that every head that they used including the racing heads were bath tub.
 
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