Quote:
Originally Posted by fjasper
If you're looking at motorcycle carbs, match the horsepower, not the displacement, and it should work reasonably well. (For instance: a 650cc motorcycle engine making 65 hp at 8,000 rpm needs about the same airflow as a 1000cc car engine making 65 hp at 5,000 rpm.)
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You don't match on horsepower, it wouldn't necessarily be off of displacement either, but displacement would be a better mode. It is off of cfm airflow. You may be right in a 650cc motor at 8,000 rpm may flow the same as a 1000cc motor at 5,000 rpm. That is how you match it, cfm. Not off of horsepower. Horsepower is a contigent upon many things, not just the throttlebodies.
J