AEM 320 LPH Manuale utente
WARNING:
!
Due to the fact that this installation deals with your fuel system
this installation is not for the mechanically challenged! If you are
not mechanically inclined 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 10-500 for Fuel Pump Kit 50-1000
AEM Fuel Pump Contents;
Quantity Description
1 320 LPH Fuel Pump
1 Electrical connector
1 Pre-filter
1 Fuel Hose
2 Hose Clamps
1 Pump Isolator Sleeve (used in some OEM style applications)
1 Pump End Isolator (used in some OEM style applications)
1 Instructions
1 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.
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.
Page 4 10-500 for Fuel Pump Kit 50-1000
Electrical Requirement
The supply voltage will affect the fuel delivery of the AEM Fuel Pump. The typical
electrical system on modern cars is between 13.2 –14.2 volts. Although the AEM fuel
pump will run at lower voltages the flow will be lower. Ensure the voltage is 13.5V at the
pump. The current requirement is minimum 12 amps. The correct wire size will be
determined by the length of wire, the wire type and the resistance of any terminals,
splices or solder joints in the electrical or ground supply. The ground is equally
important and the preferred ground is to route the ground wire to a star ground source
that is directly attached to the 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 doing the installation of the AEM pump into a new fuel tank, we recommend that
the pump is located in a sump or a chamber where baffling is used to reduce fuel slosh.
BEFORE STARTING THE VEHICLE, CHECK THE ENTIRE FUEL DELIVERY
SYSTEM FOR LEAKS AND REPAIR ANY LEAK BEFORE STARTING THE VEHICLE.
Need additional help? Contact the AEM Performance Electronics tech department at
1-800-423-0046 or tech@aempower.com, or visit the AEM Performance Electronics
forum at http://forum.aempower.com/forum/
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