Fuel System Setup

inkjunkie said

IF this were true care to explain why damn near every EFI vehicle has a return line? Keep in mind that an EFI system will run like hell with aerated fuel......A bit of info on pumps & filters from Aeromotive.......http://aeromotiveinc.com/category/technical-documents/

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It's all how the system is designed and set up. Depends on how much flow is returning, under what pressure, at what point in the tank it comes in, how tight the tank is to atmosphere etc. OEMs have engineers that design these systems properly. What I was trying to address is what I see alot of in the hobby with people buying overly large pumps and careless routing of return lines. A pump that is too large with no return will tend to be noisy and run warm compared to one sized for the job. Conversely a too large pump with a large return line that enters near the pump suction line is asking for problems.