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Should not be able to rev the engine 'with the accelerator' past the rev limit.
Can over rev an engine, for example, on a downshift from 5th to 2nd....then it is usually serious damage to the drivetrain.
@mashton You can get aftermarket ad ons that mean you can keep the accelerator depressed even during gear changes. Some of the more expensive engine management systems rev match for you on up and down shifts. But then no heal and toe fun...
Here is how the MGA rev limted through the rotor arm
Depends very much on the age of the engine, and therefore how it's managed.
That to one side, you should not be able to rev any engine past the limiter - if you can, the limiter is broken.