Fluid in 100 particles 5 microns upstream of filter 1 particle 5 microns downstream of. 2 the correct filter must also feature sufficient port size and element surface area to support full pump flow without clogging over too short a period of time.
Holley Hp Billet Fuel Filters 162 551
10 or 40 micron fuel filter. The pre pump filtration is typically going to be the same between carburetor and efi. Fuel filter element alcohol gasoline microglass 10 microns orb 10 replacement each 7 part number. 3 we recommend post pump filters with an 10 ports 10 micron to 40 micron elements and at least 60 square inches of surface area. Options include the aeromotive 10 micron replaceable element fabric filter assemblies pn 12301 and pn 12310 and the new high flow 40 micron cleanable element stainless steel filter assembly pn 12335. I maintain that the filters are rated for my engines flow rate about 66gph max and as long as the pressure drop across them is less. As a rule of thumb.
Different micron ratings are required to protect different fuel components. Aeromotive 12650 replacement filter element 10 micron microglass fits all 2 od filter housings for gas and alcohol fuels 50 out of 5 stars 8 4156 41. A 30 micron filter used in an unleaded dispenser unit can allow unwanted particles to pass through to the customers vehicle. Filters with a larger micron rating allow larger particles through the system. It may need replacing more ofeten than a larger micron filter. The 40 micron filter element is usually ok for a carburetor customer but i usually dont suggest it.
With that said i try to steer folks towards the 10 micron or 6 micron post pump filters no matter if theyre using a carburetor or efi. Usually a 10 micron filter is used for unleaded gasoline and a 30 micron filter is used for diesel fuel. A finer micron filter can collect more contamination from the fuel and reach its dirt holding capacity more quickly. A good filter is low cost protection for expensive engine components. My mechanic says that i should only be using 10 or even 30 micron filters in the racors and that by using the 2 micron ones i am damaging my engine fuel lift pump and perhaps the injector pump. 100 micron for fuel pumps 40 micron for carburetors 10 micron for manifold injectors and 5 micron for direct injectors.
Gallery of 10 Or 40 Micron Fuel Filter
