It was time to stifle the pump by submerging it in the fuel tank. Quick Connect Fitting (for Corvette regulator). I can't seem to find a filler hose that has 1 3/8 on the filler side and 1 11/16 on the tank side. LS Swap Fuel Filter and Fuel Pump Kit.
It comes with a screen to assist in keeping out contaminates from your line and tank. LS Accessory Drive Brackets and Kits. Posts: 4, 952. i went with option B although i havent installed it yet. The maximum flow rate of the Walbro GSL392-400-939 Inline Fuel Pump is 255 litres per hour. Cheaper than the Holley route by about $100. From there, if you only want to make 400ish hp an inline 255 will do the deed, no problem we are testing out a 60 dollar 044 chinese copy fuel pump on my black and silver car right now, hoping it can easily handle 400-500 hp.
200k miles on the stock pump. These pumps are well suited for Gen III/IV engines and can supply the pressure needed. When it comes to fuel pumps, there are two categories: in-tank and external. The benefit of having a return system at the fuel rail is more even fuel distribution when you are running a turbo/supercharged engine. The important thing here is to make sure the pump is mounted about 1/4 inch off the floor of the tank, with a filter sock resting on the bottom of the tank. I have no clue why you would even have to tune it until you are done with everything. Hear me out, and weigh in on the subject if you have any firsthand knowledge. Convertible Tops and Components. This pump follows the GM style design but still supports many different applications. Next up is the final filter (after the pump), which is 1 to 40 microns.
LS Engine Components. The kit comes with the seals, hardware, and a drill jig to ensure the holes are in the right place. Should you be wanting to run one of the LT family of engines there's a separate system required because of the fuel delivery demands. Having a cylinder a bit lean when running 20 PSI of boost will kill the engine instantly. Frequently Asked Question. The main gripe with in-line pumps is the noise. Common Questions on WAL-GSL392-939-6AN HFP Inline External 255LPH Fuel Pump Replacement for GSL392 With 400-939 Kit and 128-3039 – 6AN Fittings• What is the purpose of the WAL-GSL392-939-6AN HFP Inline External 255LPH Fuel Pump Replacement for GSL392 With 400-939 Kit and 128-3039 – 6AN Fittings? You are still delivering X amount of gas at X amount of pressure. Available on backorder. • Replacement 58 PSI Fuel Filter Regulator• GSL392 High Pressure Fuel Pump• Fitments• Replace Part #• OEM Design, Direct Fit• What You'll Get. As part of the gas tank's vent system, it will allow the gas tank to breathe and not build up pressure or vacuum during operation. In tank fuel pumps operate at a cooler temperature as they are submerged in fuel in turn which helps to prolong the fuel pump life. We will come back and visit this same CPP fuel tank, but this time set up for an LT engine later. )
Where we hot rodders get into trouble occurs when we paint or polish the tank before use. Firewall, Cowl, and Front Unibody. Not all fuel pumps are rated the same. This is why it's super important to get the correct fuel pump for your specific application but don't just take our word for it. For these customers, LOJ offers this fuel system package that upgrades the stock fuel sending unit to increase pressure and increase flow to keep up with the demands of the LS Engine. Books, Manuals & Brochures. Mechanically-driven fuel pumps are typically found in pre-1980 cars. Easy to put together and I would use nothing but HotRod Fuel Line and Fittings. The chance of debris snagging a long braided fuel line is much higher than with a hard line.
Fuel Pumps and Regulators. The all metal shell and inlet/outlet design accepts a variety of fittings, making it a versatile and easy-to-install solution for a variety of applications. One thing is the pump came with the higher quality clamps that require the special tool to install. In any event, when in doubt, seek the help of a professional. I'm just glad to be here! As for the actual installation of the tank itself it's quite simple. Also in Tools, Shop Equipment & Chemicals.
Quick Fuel Technology. Aeroquip AQP Socketless Hose -10. Join Date: Feb 2013. Its most common cause is installer error, where an inadequate fuel supply increases the suction on the inlet side. Thankfully, there are plenty of in-line EFI pumps to choose from. Or perhaps you are just here hoping for pretty pictures of a classic Cadillac. What pressure does this put out and would it work with the FiTech? I suspect the 1970 nova has the shorter tank like the early f without cutting a hole into the trunk, other mods would need to be done.