Mechanical fuel pump vs electric. The reason for this was because fuel injection systems operate more efficiently at a higher fuel pressure than mechanical pumps can generate.
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Mechanical fuel pump vs electric. They tend to be more reliable. Electric fuel pumps are designed for boosted engines such as fuel injection that require higher flow rates and pressure outputs. Electric fuel pumps on the other hand are capable of operating at pressures between 30 and 40 psi. Electric although mechanical and electric fuel pumps each have their share of pros and cons sometimes it all comes down to practicality. I installed a low pressure facet pump about 4 or 5 years ago and its been very reliable. Per square inch psi.
Mechanical pumps are quiet require minimal effort to install and of course there is no wiring to worry about. Mechanical fuel pumps are manufactured to operate at pressures between 4 and 6 lbs. In place of the original mechanical pump i installed a blank plate. The obvious advantages of a mechanical pump are that they dont make any noise and they dont require any additional plumbing or wiring. Electric pump is hooked up to a relay that senses rotation of the distributor which then energies the pump. For some the convenience and cost of a mechanical fuel pump might outweigh the idea of using an electric pump.
Generally you will find that electrical fuel pumps are located in the fuel tank in order to use the fuel in the tank to cool the pump and ensure a steady supply of fuel. For most carbureted fuel systems streetstrip any off the shelf performance mechanical pump will handle an engine rated under 450hp just fine. However sometimes that wont work. In my old 47 chevy the engine i had swapped in had an issue. The common issues of a mechanical fuel pump include leakage of fuel into the crankcase due to a ruptured or leaky diaphragm vapor lock in the pump fuel pressure drop faulty diaphragm spring etc. Usually a mechanical pump is preferred over an aftermarket electric fuel pump.
Gallery of Mechanical Fuel Pump Vs Electric
