Holley has been the undisputed leader in fuel systems for over 100 years. Generally the efi system requirement is 58 psi constant pressure but consult the information with your engine control system for the actual recommendation.
Converting The Porsche Ls3 Fuel System
Ls3 fuel system diagram. Ensure the fuel pump has the following flow capability. Dewitt ia 52742 800 878 9274. Fuel pump the ls3 engine does not include a fuel pump. Holley carburetors powered every monster energy nascar cup team and nearly every nhra prostock champion for four decades. Our range covers anything from standard replacement upgrades application making over 1000 hp everything in between. However the fpr has a return line to the tank so excess fuel is returned.
The fuel system uses the stock mustang tank with a 2003 ford f350 in tank fuel pump and module. Now holley efi products power these cars and are dominating the performance world. For ls swaps an walbro 255l inline is a very common install. Pre pump you will want to install a 100 micron fuel filter to protect the pump from debris. Fuel filter lift pump surge tank fuel pump filterregulator with return line fuel rail. Outside the tank the lines continue with 8 an braided hose feeding a corvette combo filterregulator running to the factory fuel rails.
Dicks 4x4 garage 50274 views. Ls1 swapping a 79 square body chevy 4x4 part4 chevy k20 project video series duration. The standard setup on a slc is from the tank. 112 e industrial st. Lsx performance parts provides fuel pumps fuel systems to support your increase in power. The fuel pressure regulator goes between the fuel pump and the fuel rail not after the fuel rail so its a returnless system.
This is what the control system has been developed to run. This kit is designed for ls engines that have a single fuel inlet fitting. 900am 1200pm 1230pm 500pm cst m f closed saturday sunday. Ensure the fuel pressure is a constant 400 kpa 60 psi with the engine running. Minimum 40 gph at 400 kpa for ls2ls3ls376s and minimum 50 gph at 400 kpa for the lsx454 ls7s. This pump can easily be converted to an6 style fittings to use with hot rod fuel hose lines and make for an easy fuel system install.
The regulator in this kit is not recommended with fuel pumps that flow over 255 lph. Mike built a custom sump to help keep the inlet covered with fuel. This fuel line kit includes 25 feet of line and all the fittings that you need for your ls engine swap using our fuel pumps. The fuel pump you choose must be capable of 45 gallons per hour gph at the recommended pressure. Investing in the right fuel system is very important is necessary to making your entire package come together for the long term.
Gallery of Ls3 Fuel System Diagram
