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Fuel injectors. #'s vs cc's

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Old 02-20-2012, 12:26 AM
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Default Fuel injectors. #'s vs cc's

On this site, and Tech, we always refer to their size by #'s, not cc's. I'm just wondering why? There are some injector manufacturers that only refer to them in cc's, and it seems like GM enthusiasts are the only ones who use #'s.
Old 02-20-2012, 12:39 AM
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1 lb./hr. = 10.5 cc./min. Kind of like saying I weigh 171 pounds or 77.5642953 kilograms. You can just be more precise with one, versus the other. It's just an interchangeable thing, which I'm sure you're well aware of. Most people around where I'm at always go with lbs./hr. CC's seems to sound more technical. I guess it's the appeal of the technical sound when referring to the injectors themselves.
Old 02-20-2012, 02:56 AM
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Usually see cc on import cars
Old 02-20-2012, 03:06 AM
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Probably for the same reason that import guys refer to their turbo size by the compressor trim
Old 02-20-2012, 09:56 AM
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I would think for an even comparison across different fuels (or any liquid for that matter), cc/min would be the more accurate measure of flow rate. Lbs/hr would be specific to the fuel type. For example gasoline weighs ~6lb/gal where pure ethanol weighs ~6.6lb/gal. Therefor a 1000cc/min injector would flow ~95lb/hr with gas and ~104lb/hr with E100.
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