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injector flow with voltage change

Posted: Tue Aug 21, 2012 8:06 pm
by 355vette
Is there any rule of thumb to do with injector flow if voltage is cut in half? The injectors in question are GM TBI 55 #hr at 11 psi and 72ish at 20 psi. I have the gm computer in the car to run the transmission and looking at ways I can be able to keep that as a back up for the injectors to be able to run off the gm for getting home. The system uses 4 55# injectors with MS and would have to be wired in series if run with the gm so that would cut the voltage in half.

Re: injector flow with voltage change

Posted: Wed Aug 22, 2012 4:48 am
by Matt Cramer
As long as the injector actually opens, the static flow rate is the same, but dead time will increase.