Maximum test speed
Maximum test speed has one of the following meanings:
(1) For variable-speed engines, maximum test speed has the meaning given in 40 CFR 1065.1001.
(2) For transient testing of constant-speed engines, maximum test speed means the highest speed at which the engine produces zero torque.
(3) For steady-state testing of constant-speed engines, maximum test speed means the speed at which the engine produces peak torque.
40 CFR § 1048.801
The following definitions apply to this part. The definitions apply to all subparts unless we note otherwise. All undefined terms have the meaning the Act gives to them. The definitions follow: