AEM 50-1210 E85 High Flow Fuel Pump - Manual (Page 3)

1/22/14 Page 3 10-502 for Fuel Pump Kit 50-1210
NEVER route fuel hoses through the interior of a car. This is a dangerous thing to do. Whenever possible,
use a delivery tube to make the connection from the pump discharge to the filter in the front of the car.
The lines should be rated to withstand at least twice the maximum pressure of the EFI system.
Alcohol based fuels especially 100% strength alcohol fuel burns with a colorless
flame. IT IS IMPERATIVE that a thorough leak check is made before the engine is
started and there are NO sources of ignition of any type near the work area.
When routing fuel lines, it is imperative that they are protected from road hazards and exhaust system
heat. The fuel line should NEVER be routed near battery cables. Use clamps to secure AN hose every 15
inches, or 24 inches if a rigid tube is used.
The following table will help you determine which hose size is correct for your application: These sizes
are based on a nominal fuel pressure of 43 psi.
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
E-85 Take above size and multiply by .68 so -6 HP value will support 340 HP
E100 Take above value and multiply by .50 so -6 HP value will support about 250 HP
M-100 Take above value and multiply by .41 so -6 HP value would be 204 HP
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 engine power levels
described above,
we would use a .437” (-8) delivery hose and a .344” (-6) return hose.
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Fuel Pressure PSI
Power vs. BSFC E-85, E-100 & M-100
AVG HP E-85 @ .7 BSFC
AVG HP E-85 @ .91 BSFC
Avg HP E 100 @ 1.1 BSFC
Avg. HP M 100 @ .85 BSFC
Avg. HP M 100 @ 1.3 BSFC
AVG HP Gasoline @.5 BSFC
AVG HP Gasoline @ .65 BSFC