AEM 50-1205 E85 High Flow Fuel Pump - Manual (Page 3)

Page 3 10-500 for Fuel Pump Kit 50-1000
Fuel Delivery Hose Sizes
Gasoline Powered Engines
Up to 499 HP .344” hose -6AN
500 -
799 HP .437” hose -8 AN
900
– 1100 HP .562” hose -10 AN
The above table should be used for typical passenger car applications. However, for
custom applications the hose run length will affect fuel delivery. If you have a long hose
run, then the actual flow will have to be determined by running the fuel pump into a
graduated cylinder, then measuring the flow vs. time and calculating the flow in gallons
per hour (g/h). Also note that if fuel banjos are used in the system be sure they have
adequate fuel flow capability.
The fuel return hoses should be one size smaller than the delivery hose. For the sample
engine described above, we would use a .437” (-8) delivery hose and a .344” (-6) return
hose.