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Continental

 
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MONTY(at)bpaengines.com
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PostPosted: Tue Feb 27, 2007 8:34 am    Post subject: Continental Reply with quote

From an Experimental Certificated airplane point of view there is not much difference between a C-145 and an 0-300.

The 0-200 engines used at Reno do not have a very long life expectancy. Usually these engines have parts that have been trimmed down to the minimum weight, are very closely balanced, have minimum volume combustion chambers, have 1 mag advanced a considerable amount, the other timed at normal for starting purposes, valve springs are shimmed to coil bind minus a small amount, use different carburetor jetting, there is a myriad of changes that are not obvious and some likely do not comply with Reno Formula one rules. Oil temperature is always a problem with Reno F-1 engines, at least on the ones I ‘ve built. Because of the low cooling drag cowlings used on the real fast airplanes, CHT can also be problematic.

The reason they turn them so fast is because if they don’t they do not have enough RPM static to get the airplane in the air. Remember that F-1 starts from a standing start so takeoff performance is a major factor in the final results. He who leads gets to fly in “ clean “ air.
Monty Barrett
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