Purchased a bunch of fuel system fittings and mounts at the Napa auto in Sidney. Lots of stuff there. Picked up fuel line insulated mounts, fuel tank connection fittings, fuel line adaptors and hose clamps. Made up a bracket for the fuel pump to mount to in the trunk.
Didn’t quite finish mounting and hiking up fuel line at engine.
Received the new fuel pump, fuel filter in the mail and I picked up fuel injection line to use as my regular fuel line. Fuel line is a Barricade with a rated working capacity of 225psi noted on the hose although the guy at NAPA auto said it was rated to 180 psi working pressure.
Layed up a section of fuel line to see how it will run and if I had enough. Looks like it will work well. Will have to work out mounting the fuel pump somewhere onto the frame to avoid vibrations and noise.
Working to get the fuel system together on the car. Would have liked to use the stock miata fuel pump and sensor assembly, but my fuel tank is too shallow to allow it as it is an in tank pump system. Thought about mounting the stock fuel pump outside, but there are a few pin holes on the pump itself that likely leak fuel. Would have to fabricate a canister to contain the pump in fuel so as avoid un-contained fuel leakage. Decided to order a new external pump and mount it inline with the fuel system. The stock pump is said to generally max out at 85 psi, but added flow may be desirable. I ordered a high pressure pump with greater flow rate, although this may not have been necessary, although it was difficult to find any external pump meeting the stock specifications. According to Airtex, the stock pump generally follows these specs:
GPH (Free Flow)
Max Pump PSI (Not System)
The pump will be installing has the following specs:
Will have to pick up some fuel line capable of fuel pressures reached in the system.
At this point I am unsure how the higher pump pressure will affect the fuel delivery, as the supercharger kit came with a fuel pressure regulator, which I believe will dial in the correct pressures and fuel delivery for the boosted system.
In my review the fuel delivery system I came across a few good resources regarding pressure regulators and system considerations.