Any engine builder that is doing performance work or high volume engine building can benefit from owning an engine dynamometer. A dyno is not just a tool for plotting horsepower and torque curves. It’s also a tuning tool for plotting and adjusting fuel mixture and ignition calibration, a quality control tool to assure proper engine break-in, valvetrain adjustments and to verify compression, ring seating and gasket sealing. It can also be used as a performance and/or durability research tool.
My transition in 1975 from bracket racing a 122˝ wheelbase mid-eleven second, two-ton ’57 Mercury to racing in a low nine-second 99˝ wheelbase, Pinto Pro Stock car, was quite a jump. I was jaded with bracket racing and wanted to run heads up – all out with a door car. So, Pro Stock was it.