dyno basics · FF-0500

What does rolling over mean on a dyno?

Dyno results are torque and horsepower plotted against RPM. The dyno measures torque, and horsepower is calculated from torque and engine speed. Both rise as RPM goes up; rolling over, or tipping over, is the point where they stop increasing and start to decrease. Testing beyond that point is not really beneficial.

Expert

Steve Coppock

Evidence

expert attributed

Component

torque and horsepower curves

Applicable scope

General engine practice; not specific to the Flathead; explained for the ARDUN dyno test