Fuel Pumps
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Fuel Pumps



This is directed at MO for starters as he ask some time back about what size fuel pump was needed for a big block,,,, the question was somewhat answered back then, but there were no numbers to put with it, I did come up with a formula stolen off the net, it goes like this,,,
 
estimated HP times expected efficiency equals lbs of fuel used 
 
there are still a lot of variables,,, but here are the numbers they gave to work with.
 
 a well tuned motor set up for good mileage runs an expected efficiency rating of .4
and a performance motor set for max all out HP has a rating of  .75
so using a figure somewhere in the middle of say .6 , would look like this
 
450 (HP) times .6 (efficiency rating) equals 270 pounds of fuel
270 divided by 6.1(weight of 1 gallon fuel) equals a little over 44 gallons per hour
 
like I said there are a lot of variables like temp, octane, power adders, turbos, blowers and probably a lot more. 
     Not real sure what a stock pump is capable of, but think that the race pumps start at around 100 gph, so you do the math,,,,,, dodger

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