In more recent years, the accessibility of the engine dyno has expanded to the point where dyno testing has become a relatively routine punctuation to a performance engine build-and for good reason.

Read about the different ways of engine dyno testing to determine factual horsepower and torque, only on dieselpowermag.com, the official website of Diesel Power magazine.

In steady-state testing, they can control an engine within 1-2 rpm, opposed to the 5-10 range of a water-brake dyno. However, they're not very practical or appropriate for most engine builders.

To find out just how much dyno numbers can be manipulated, you need a really accurate dyno to spot the swing in power - Popular Hot Rodding Magazine ...