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Can someone help me convert 750cc injectors into lb/h

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Old 04-26-2004, 12:29 PM
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Can someone help me convert 750cc injectors into lb/h

750cc = ? lb/hour?

Thanks!
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Old 04-26-2004, 12:35 PM
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I don't know if you can convert cc to lb/hr. Seems like you'd need some sort of time information on both sides of the equation. As in, you could convert cc/hr to lb/hr or cc/min to lb/hr

Google says: To convert cc/min into lb/hr, divide cc/min by 10.5.

Last edited by Nick Koan; 04-26-2004 at 12:40 PM.
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Old 04-26-2004, 12:38 PM
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Hope this helps.

http://www.turbosaturns.net/articles...orsepower.html

750cc/10.5= 71.428571 lbs/hr.
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Old 04-26-2004, 12:54 PM
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yup
750cc/min = 71.4 lb/hr
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Old 04-26-2004, 01:31 PM
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mass flow rate = density of the fluid * volumetic flowrate

volumetric flow rate = cross sectional area * velocity of the fluid
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Old 04-26-2004, 01:48 PM
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the saturn guys numbers don't make sense.
that 71.4lb/hr is slightly off

the density of gasoline is 672.8 kg/m^3

mass flow rate = density * volumtric flow rate

750 cm^3/min = 0.045 m^3/hr

mass flow rate = 672.8 kg/m^3 * 0.045 m^3/hr

mass flow rate = 30.276 kg/hr

30.276 kg/hr = 66.747 lbs/hr

so the mass flow rate of 750cc injectors is 66.747 lbs/hr

Last edited by ish; 04-26-2004 at 02:31 PM.
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Old 04-26-2004, 05:54 PM
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Origami posted by Imprezer
Can someone help me convert 750cc injectors into lb/hr?
Alex, please see link in Engine Management post. RC Engineering's web page covers injector selection and formulas for common calculations.

You know I'm probably going to move this thread...

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