There is nothing magic about 28″ water. Famed engine builder Smokey Yunick picked this pressure (about 1 psi) many years ago (probably in the 1960s) as what he thought was reasonable, and it stuck. It is now the industry standard.
Tag Archives: engine testing
Correcting for Engine Inertia during Dyno Tests
An engine dynamometer is used to measure the engine’s power. Dyno tests can be done different ways, but the most common method in the racing world is a sweep test. A sweep test is where you slowly (or quickly) accelerate (or decelerate) through the RPM range with the engine at full power. This must be …
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It Is Possible to Modernize your Old Dyno (Dynamometer)
If you have an old Dyno with analog gauges I’m sure you know that newer Dynos are much more accurate, repeatable, and easy to operate.