The only way to know if you are maxing out your injectors is to do some fricking math! Just because you run lean doesn't mean that is what is happening. All you people out there are driving me nuts with this. FWIW I have WELL over 200 HP at the wheels with the stock 19# injectors and I was in no way running lean on the dyno.
You have to take a reading of the pulse width at WOT and max rpm.
If you factor on 7000 rpm, then you have a starting point. Your injectors fire once per two revolutions which means that at 7000 rpm each injector fires 3500 times per minute.
Something like 58 times per second which translates to 0.017 seconds between each injector pulse which is 17.1 milliseconds. Now if you assume that your injectors are "maxed" at 80% duty cycle, then you would have to see them on for 80% of the time between each pulse.
That would be 13.7 milliseconds at 7000rpm, longer at the 6750 rpm cutoff.
The injector pulse-width at 6750 rpm cutoff and 80% duty cycle is 17.8 milliseconds.
There, take that figure and use a scan tool to see what the injector pulsewidth is right at the top of your RPM range when you shift. If it is less than 17 mS then you are NOT maxing your injectors.
Yes it is that simple.
Tom
