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Fuel Filters
What defines an efficient filter? As little pressure drop as possible. How do you achieve a low pressure drop? Surface area. How do you get a lot of area into a compact inline filter? Pleats. More pleats mean more surface area, allowing filters to be compact while still allowing sizable fuel flow.
Things to consider when picking a fuel filter:
Things to consider when picking a fuel filter:
- Where is the filter being placed? This is the most important piece of information because it will dictate which filter to use. Typically, 100 micron filters are used on the suction side of the pump and is meant to protect the fuel pump from internal damage. On the pressure side, between the pump and regulator/carburetor/fuel rail, a 10 micron filter is used to protect the engine and fuel inlet ports.
- What size filter is needed? When designing your fuel system make sure that all your parts/ports are somewhat compatible. Most filters us either an ORB (O-Ring Boss) inlet/outlet or have a JIC/AN style inlet/outlet. When choosing a filter make sure the inlet/outlet ports are appropriate for the fuel line size and can handle the flow demanded by the pump.
- What type of fuel is being used? Consider this as some fuels may damage or dissolve the filter element, clogging the system and leaving your pumps and engine vulnerable.
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