Test data derived on a flow bench is measured in cubic feet of air per minute (cfm), and, as you will see, may not relate directly to horsepower potential. Beyond the ease of testing, the flow bench ...
During one of our never-ending technical discussions, Jim Grubbs at Jim Grubbs Motorsports (JGM) suggested that we take a look at the flow difference between 30- and 45-degree valve seats. While ...
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