Most times it is best to shift just prior to when peak torque is
reached, that will vary by the engine being tested. If you can't reach
it very early in 2nd, sometimes 1st, you don't want to know the time
or the RPM. ;-)
It seems to me it would be a bit hard to standardize a shift point
based on RPM. If you are running a test for an 0-60 speed with a car
that develops 9,000 RPM redline and then try the same with one that
redlines at 6,500 you have a false comparison. The shift point has to
be based on peak torque/HP to get even a basic comparison.
So yes, there is a protocol for what rpm you shift and how many gears
are used based on where the engine reaches it best torque/HP. Then
that is recorded as the 0-60 time for a standard (?) for that car.
Standardization may also rule out using reverse, steep inclines both
positive and negative, and during snow storms or floods.
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