Ls1 Fuel System Diagram

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Ls1 fuel system diagram. Figure i don t need one as the vs v6 intank one can move fuel up to the fuel rail which i m sure is higher than the surge tank is going to be. Fortunately earlier 97 98 corvettes employ the traditional feed and return line fuel system. 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 fuel system uses the stock mustang tank with a 2003 ford f350 in tank fuel pump and module.

The 1997 1998 corvettes and 1998 2002 f body ls1s used a dual line fuel rail. Pre pump you will want to install a 100 micron fuel filter to protect the pump from debris. These computers were service number 9354896 or 12200411. If you happen to have a non return line ls1 the fuel rails must be modified for a two line system.

In 1999 the corvette ls1 went to a single line rail using a filter regulator near the fuel tank and running a short return line back to the tank. Ignition module bank 1 1 3 5 7 bcm and fuel pump starting system schematics ignition module bank 2 2 4 6 8 battery and ignition switch ect engine oil level cruise module. For ls swaps an walbro 255l inline is a very common install. Factory computers from 1999 02 camaros or firebirds equipped with the ls1 may be used with this harness.

Using a 3 8 fuel hose i connected one end to the metal line with a hose clamp and the other end to a 8an hose to 8 female fitting. This system is very difficult to adapt in an engine swap situation. Make sure the fuel hose you use between the pump and the engine is rated for at least 60 psi or 4 2 bar or higher it will be more expensive but regular fuel line is sometimes only rated for 25 psi. The early gen iii engines from 1997 to 1998 and some 1999 engines used a return fuel line system while the 1999 and newer ls engines used a returnless fuel system.

I d like to run a return less system similar to the ls1 standard setup if it can be done easily. Fuel rail every time a injector opens and closes no 3 the line you see with the 1 lb rating is for the emission purge system this system collects fuel vapors and stores them in a charcoal canister then while you drive the purge valve opens delivering the vapors to be burnt in ther engine through. Ls1 fuel schematic. This is a discussion.

Once again street performance can modify your existing fuel rails or provide. If you are installing a later style gen iii or gen iv engine you don t have to route a fuel line back to the tank.