I had an idea to create an addon that would bring vehicle engine starting speeds to more realistic ones, especially for tanks, helicopters and airplanes.
Now the concept was to either change a single parameter in a few classes or change the default "engine on" action to add a delay to it (of course finding a way of making different delays for different vehicles shouldn't be hard).
The problem I have so far is that the only parameter I could find in the "APC", "Tank", and "Tank_F" classes, called "engineStartSpeed" doesn't appear to change anything (a change from 1.5 to 0.2 or 10.0 was impossible to notice and in fact there is no documentation I was able to find on that parameter so far). I was trying out the change on the Slammer tank, which I assumed would be a child of the Tank or Tank_F class, I wasn't able to find the actual Slammer tank class in the config viewer.
As for changing the "engine on" action, I was only able to find an entry in CfgActions defining its display name, priority, etc. but not what it actually did.
If anyone with some knowledge of configs had an idea where those actions are defined or some other suggestions, I'd be very thankful for the help.