Injector Duty Cycle explained *good stuff*
duty cycle is a named conversion related to the amount of fuel sprayed in a set amount of time. after all, that's the difference between a smaller and bigger injector - the amount of fuel sprayed, not the length of time it sprays. the time remains the same.
as mentioned before, many posts up, being over 100% duty cycle just shows how much fuel the injector lacks, not the amount of extra time it needs to spray.
as mentioned before, many posts up, being over 100% duty cycle just shows how much fuel the injector lacks, not the amount of extra time it needs to spray.
think about it. why do you buy bigger injectors. because they flow more fuel in a given time period. duty cycle doesn't measure time. it measures fuel.
it measures fuel as a function of time. but you still alleviate the problem by flowing more fuel in the same time period rather than flowing fuel for a longer time period..... if you extended flow for a longer time period, you would be spraying after the valve closes and have fuel sitting on the valve for a full cycle. you don't want that....
How much HP are you planning on making?
Negatory ghost rider. Injector duty cycle is the amount of time the injector has to to flow relative to the crank shaft speed. The cam dictates how much flow the injector must be capable of.
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A big cam will give you a bigger window of time while the valves are open...so ideally you need to consider both windows, piston stroke and valve timing events and how the injector duty cycle works within them???? I think I'm getting an understanding. Hopefully I can see more when I hook up my EFI scanner and look at injector duty cycle.
http://redhardsupra.blogspot.com/200...se-widths.html
here's a program i wrote some time ago that accounts for a lot of variables. play with it and you will understand what the pulse width you need at what rpm
here's a program i wrote some time ago that accounts for a lot of variables. play with it and you will understand what the pulse width you need at what rpm
http://redhardsupra.blogspot.com/200...se-widths.html
here's a program i wrote some time ago that accounts for a lot of variables. play with it and you will understand what the pulse width you need at what rpm
here's a program i wrote some time ago that accounts for a lot of variables. play with it and you will understand what the pulse width you need at what rpm
Excuse my ignorance, but what is IFR? [edit; Injector Flow Rate]
I appreciate the assistance with my education.
