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johnneilson · 04-12-2021, 11:31 AM

Bob,

There is another aspect to the equation, the shape of the combustion chamber will have a large effect in the resistance to detonation, not just the CR.

Brett and Pete are spot on with their explanations. The Babbitt material and process of installation is key. FWIW, I do insert bearing installations in "B" motors and 4 out of 5 blocks will have inadequate lead based babbitt, just beat out.

John

04-12-2021, 11:31 AM	#13
johnneilson Senior Member Join Date: Jun 2010 Location: 34.22 N 118.36 W Posts: 1,053	Re: Highest Reliable Compression Ratio Bob, There is another aspect to the equation, the shape of the combustion chamber will have a large effect in the resistance to detonation, not just the CR. Brett and Pete are spot on with their explanations. The Babbitt material and process of installation is key. FWIW, I do insert bearing installations in "B" motors and 4 out of 5 blocks will have inadequate lead based babbitt, just beat out. John __________________ As Carroll Smith wrote; All Failures are Human in Origin.