Michael
03-13-2012, 11:45 PM
http://http://i1151.photobucket.com/albums/o628/geckmichael/img005.jpgI am making this post so others can have an idea of how to make there own return style fuel system. There are many ways to do this, but I recommend doing it once if possible by having a goal and then do your research. I wanted a system that was dual fuel; this consists of E85 and gasoline when E85 is not available. I made my system overkill in the fuel line department, but I only wanted to do it once.
The system starts in the tank with 2 Walbro GSS 340 fuel pumps running to a Y block inside the tank on the hanger to a –12 bulkhead fitting, then reducing to a –10 right outside the bulkhead. I also modified a –6 bulkhead fitting to pass 2 Walbro pump wiring pigtails (4 wires total), then epoxyed them into the bulkhead fitting providing a leak proof seal and zero voltage drop. This is a good modification to do because the stock wiring is not very large of a gauge to handle the extra current of a larger pump or pumps. Another good tip is to use the factory style convoluted (ptfe, I believe) tubing. It is very flexible, very cheap to buy compared to rubber in tank hose, is ethanol compatible, and is the perfect size for in tank pumps. The Y block on my application is on the fuel hanger inside the tank making a cleaner and simpler install. I have purchased all the fuel pumps, in tank hoses, pigtails, and fuel socks from Performance Automotive Engineering. They are genuine Walbro pumps and are reasonably priced and good service.
The fuel leaves the tank though push lock –10 fuel hose to an Aeromotive fuel filter mounted where the stock factory filter was. The fuel then runs to Fore Precision fuel rails made for a 03-04 cobra into 80 lb cobra jet injectors. The COT would not allow –10 fittings on the end of the rails so they are plugged and I drilled and taped holes on top of the rails to reach the other side. This setup is similar to other newer factor cars and helps prevent the last injector from not receiving enough fuel if the system is lacking in a series system.
The fuel leaves the rails to an Aeromotive regulator to the stock marauder fuel supply line, which is just big enough for my application but may be to small if your application uses more pump. I am running 39 psi with boost reference 1 to 1 on the regulator.
Here are some pictures of my setup. This is my first time posting pictures so will see if this works.:burnout:
http://http://i1151.photobucket.com/albums/o628/geckmichael/img005.jpghttp://http://i1151.photobucket.com/albums/o628/geckmichael/DSC01938.jpg
The system starts in the tank with 2 Walbro GSS 340 fuel pumps running to a Y block inside the tank on the hanger to a –12 bulkhead fitting, then reducing to a –10 right outside the bulkhead. I also modified a –6 bulkhead fitting to pass 2 Walbro pump wiring pigtails (4 wires total), then epoxyed them into the bulkhead fitting providing a leak proof seal and zero voltage drop. This is a good modification to do because the stock wiring is not very large of a gauge to handle the extra current of a larger pump or pumps. Another good tip is to use the factory style convoluted (ptfe, I believe) tubing. It is very flexible, very cheap to buy compared to rubber in tank hose, is ethanol compatible, and is the perfect size for in tank pumps. The Y block on my application is on the fuel hanger inside the tank making a cleaner and simpler install. I have purchased all the fuel pumps, in tank hoses, pigtails, and fuel socks from Performance Automotive Engineering. They are genuine Walbro pumps and are reasonably priced and good service.
The fuel leaves the tank though push lock –10 fuel hose to an Aeromotive fuel filter mounted where the stock factory filter was. The fuel then runs to Fore Precision fuel rails made for a 03-04 cobra into 80 lb cobra jet injectors. The COT would not allow –10 fittings on the end of the rails so they are plugged and I drilled and taped holes on top of the rails to reach the other side. This setup is similar to other newer factor cars and helps prevent the last injector from not receiving enough fuel if the system is lacking in a series system.
The fuel leaves the rails to an Aeromotive regulator to the stock marauder fuel supply line, which is just big enough for my application but may be to small if your application uses more pump. I am running 39 psi with boost reference 1 to 1 on the regulator.
Here are some pictures of my setup. This is my first time posting pictures so will see if this works.:burnout:
http://http://i1151.photobucket.com/albums/o628/geckmichael/img005.jpghttp://http://i1151.photobucket.com/albums/o628/geckmichael/DSC01938.jpg