engifineer

One correction though, rpms do not rise when clutching due to the flywheel weight. That is against all laws of physics. They tend to stay the same, but not rise. Unless there is something physically acclerating the engine (combustion) the engine speed will tend to stay the same (due to the rotational mass) and then begin to decay. It is the same misconception that people use that if you accelerate very rapidly (like in a drag race) and push in the clutch, the car continues to accelerate for a second. That is physically impossible and does not occur. Inertia describes static properties (constant speed, whether it be 0 or any other static value) not constant acceleration. Accleration stops the instant you stop applying force to create it.

If the rpm is rising when you press in the clutch, it is due to one of the following:

1) The acclerator was still partially depressed at the time the clutch was disengaged

2) The idle air control system (which on this car is controlled through the throttle by wire actuator if I am not mistaken, not a separate solenoid like cable type systems use) is preventing the idle from dropping as quickly as you expect.