Engine control modules will be on hand for the dyno session with 9,000, 9,500, and 10,000 rpm rev limits. The one that lets the engine rev a few hundred rpm past peak power will be used. It makes no sense to use more rpm than that. I shift when I feel the misfire caused by the rev limiter.
It also helps to keep the engine above peak torque rpm through the timed mile. The idiot light on the tach is set for peak torque. An idiot light on with a misfire indicates rear sprocket with a tooth or two less is needed. The idiot light off with no misfire tells me the opposite. A bigger back chainwheel is needed. The idiot light on with no misfire tells me the gearing is OK.
It is sorta a caveman way of doing things. The old tach went up to 9,000 rpm and pegged. This new one goes to 15,000 rpm. There is no way any Triumph Bonneville can peg this new one.