Roughly one pint per minute.
60 pints per hour. 60 pints is 7.5 gallons.
or 7.5 gallons per hour per injector.
So four injectors are 30 gallons an hour
at 62 psi.

30 gallons an hour is 187 pounds of fuel per hour.
At a BSFC of .5 that is 375 HP.
At a BSFC of .6 that is 312 HP.

More than enough.

This was a 90% duty cycle for the injector at 7500
RPM.

This is it. No need for larger injectors.
A milestone in the 555 EFI development cycle.

Paul Lamar

Thanks for doing this Paul.

Chris Cosman

Your welcome Chris. I had to do it before I went
further with the 555 system because four injectors are critical.
I'll be doing some more minimum fuel measurements
at lower pressures and minimum pulse widths.
Probably tomorrow.

Paul Lamar