Check this thread: http://www.alcohol-injection.com/forum/nozzle-size-calculator/how-convert-gph-ccs-nozzle-size-427.html

63 cc/min = 1 gph (we will need to back this up somewhere)

1 gph = 0.01666 gpm (if needed for certain products using that measurement)

Using the nozzle 4759T15 form McMaster, we see that the volume output changes significantly with input pressure. I have not looked too closely at the pump specs, but I am not sure how we would go about calculating the line pressure with no regulator. What kind of pressure would we see in the line to the nozzle upon power-up?

Using the same pump, at 100 psi (for example) the nozzle flows 26.4 GPH, which by using the above formula equals 1663 cc/min flow through the nozzle. That is quite a bit of water being injected. @40 psi the nozzle will flow 1058 cc/min. Clearly we need to step down the orifice based on our fuel requirements.

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2012 2500HD LML