Calibration nozzles ?

[Roverlord off road spares]

I'm still not satisfied with my LPG running. The calibration using the software said 'Nozzles TOO LARGE" so in order to change this senario I assume you fit different nozzles to the injectors?
Looking on the net I found there are calibration nozzles 5mm and 6mm, what does this mean, is it the hose diameter fitting for the nozzle of the actual inner nozzle diameter.
I thought the former and to calibrate the nozzle you may have to use different sized drill bits and drill out the nozzle until you get the correct flow??
I found some info on the net that recommended nozzle diameters to per Cylinder HP. confusing, how much HP does a 4.0 litre Rover V8 have per cylinder?


https://www.aulro.com/afvb/images/imported/2014/11/1037.jpg

[bee utey]

Your software is designed for a particular type of injector that has either replaceable nozzles or small jets that screw into the nozzle ends where the hose goes on. If you can't find nozzles to fit your application online then I suggest you make your own. Find some 6mm mild steel, brass or aluminium rod, cut off 8 pieces about 25mm long. Drill them on a small lathe to 3mm ID to a depth of say 22mm then drill the last bit to 2mm. Cut the injector hoses, install your nozzles and retune. Increase them a bit if needed.