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10-500 for Fuel Pump Kit 50-1000 

 
 

AEM Fuel Pump Contents; 
 
Quantity 

Description 

320 LPH Fuel Pump 

Electrical connector 

Pre-filter 

Fuel Hose 

Hose Clamps 

Pump Isolator Sleeve (used in some OEM style applications) 

Pump End Isolator (used in some OEM style applications) 

Instructions 

AEM Decal 

This fuel pump is intended for electronic fuel injection systems only. It is not suitable for 
carbureted engines. The fuel pump is an in tank pump and not suitable for external use. 

 
Pump flow and test information 
 

Every AEM fuel pump is flow tested before it leaves the factory to ensure that it flows 
nominal 320 LPH @ 43 PSI. The flow chart presented below is the result of flow testing 
20 fuel pumps, eliminating the highest and lowest flowing samples and averaging the 
balance of the flow data. The data presented is flow in pounds per hour (PPH), and 
supported power at various fuel pressure levels. This test data is generated using the 
AEM fuel pump, AEM Race Fuel Filter and an AEM universal fuel pressure regulator 
with the optional .250” return orifice. The pump voltage is 13.5V and the current is 12 
Amps for this test. The flow will be different at the engine because of losses through the 
balance of the fuel delivery system. It is important to ensure that the hoses or lines for 
the fuel delivery system are clean, not kinked, do not pass hot exhaust components and 
are terminated correctly. We find inadequate fuel delivery often is the cause of 
calibration errors that may be detrimental to engine life. 
 
NEVER route fuel hoses through the interior of a car. Put bluntly, 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. 
 
When routing fuel lines, it is imperative that they are protected from road hazards and 
the 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. 

Summary of Contents for 320 LPH

Page 1: ...ed or do not understand the procedure please do not attempt the installation Refer the installation to a reputable mechanic AEM Performance Electronics 2205 126th Street Unit A Hawthorne CA 90250 Phone 310 484 2322 Fax 310 484 0152 http www aemelectronics com Instruction Part Number 10 500 2011 AEM Performance Electronics 320 LPH FUEL PUMP Installation Instructions ...

Page 2: ...egulator with the optional 250 return orifice The pump voltage is 13 5V and the current is 12 Amps for this test The flow will be different at the engine because of losses through the balance of the fuel delivery system It is important to ensure that the hoses or lines for the fuel delivery system are clean not kinked do not pass hot exhaust components and are terminated correctly We find inadequa...

Page 3: ...ffect 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...

Page 4: ...e battery negative post The minimum wire gauge is 12ga TXL wire Before wiring the pump to the electrical system make sure the polarity is correct Connecting the pump with reverse polarity will damage the pump and is not covered under warranty Installation Notes The AEM Fuel Pump is rated for all gasoline fuels No warranty is made when used with fuels containing alcohol content 50 or more When doin...

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