Forced Induction Custom FI Setup Questions

Injector Pulse m/s?

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Old Feb 21, 2003 | 12:38 AM
  #11  
shortyz's Avatar
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3.0 BAR
 
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Default Re:Injector Pulse m/s?

yeah i got the book i will check right now.

Old Feb 21, 2003 | 12:46 AM
  #12  
shortyz's Avatar
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3.0 BAR
 
Joined: Dec 2002
Posts: 3,396
Default 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.

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