Obviously they don't relate to injector pulsewidth, so what do they mean?

 

they don't translate to anything. Hondata uses generic raw fuel value which are more intuitive than ms. What I mean is, if you double the ms, that doesn't mean double the fuel, but with hondata's fuel values, double the number means double the fuel. Make sense?

 

I don't see how that can always equal double the fuel, each situation will be different because of injector spray pattern, pintle opening time, fuel pump volume and pressure, as well as many other factors.