Injector Pulse m/s?
02-21-2003, 12:46 AM
#12
3.0 BAR
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Join Date: Dec 2002
Posts: 3,396
Re:Injector Pulse m/s?
ok heres what he sez
the efi fuel injector has a rating of fuel flow per unit time. a huge variety of sizes exist. an equally huge number of units of co9lume or mass flow are used for rate injector flow capacity. the following will convert cc/min to lb/hr
cubic centimeteres / minute = pounds / hour (10.5)
the caulations requied to come up with the properly sized injecotrs for a given application are not rigorous. not rocket science here, one simple calculation and the job is done:
Pounds of fuel per hour per injector =
expected BHP x 0.55
-----------------------
number of injectors
The .55 figure is actually the maximum load brake specific fuel consumptions (bsfc) of a typical turbocharged engine. in gerneral, the number of injectors is the same as the number of cylinders. clearly one should choose the next larger size than the calculated value, to offer some marging for future impovements.
this doesnt help me but mabey it helps some of your guys understand some things.
the efi fuel injector has a rating of fuel flow per unit time. a huge variety of sizes exist. an equally huge number of units of co9lume or mass flow are used for rate injector flow capacity. the following will convert cc/min to lb/hr
cubic centimeteres / minute = pounds / hour (10.5)
the caulations requied to come up with the properly sized injecotrs for a given application are not rigorous. not rocket science here, one simple calculation and the job is done:
Pounds of fuel per hour per injector =
expected BHP x 0.55
-----------------------
number of injectors
The .55 figure is actually the maximum load brake specific fuel consumptions (bsfc) of a typical turbocharged engine. in gerneral, the number of injectors is the same as the number of cylinders. clearly one should choose the next larger size than the calculated value, to offer some marging for future impovements.
this doesnt help me but mabey it helps some of your guys understand some things.
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