ECUTEK Injector Duty Cycle

SonicVQ

The injector pulse width is the duration of how long the fuel injector is provided with power, aka "on" time. It is measured in milliseconds (ms)

Pulse width is the % of "on" time to total time. Total time is determined by engine RPM, the faster the engine speed, the less time between injector "on" pulses.

So...
Duty Cycle = fuel injector pulse width (ms) / Time between ignition events

Time between ignition events = 120 / Engine RPM

At 7,500 RPM there is 0.016 seconds or 16ms between ignition cycles.
If the calculated fuel injector pulse width is 15ms, then the pulse width is:
15/16 x 100 = 93.75%

If a small injector value was entered into EcuTEK (with a larger injector installed in the engine), it would increase the pulse width and the duty cycle.

This would increase fueling, but only up to 100% duty cycle, since the injector is open 100% of the time.

Generally, you don't want to "trick" the fueling calculations. The goal is to work with the system not against it.

I will reply to your PM later this afternoon.