How do you disable the speed governor limiter on a 2000 Chevy Cavalier Z24?
The only way to "disable" the "governor" is to reprogram the ECM to delete the fuel cut off point.
An 02 car is going to be electronically controlled so in order to defeat the speed limiter a performance chip will need to be installed in the engine control computer. Being that it is a Cavalier I doubt there is one available. Speed and rpm limiters are there to protect your drivetrain from damage. it is not wise to mess with it.