For the dragster’s fuel system we consulted with the experts at Holley to see what parts we would need to keep the Sniper flush with fuel. They recommended for the backbone of our fuel system we use a Holley Dominator in-line billet fuel pump (P/N 12-1600). This fuel pump can flow upwards of 160 gallons-per-minute and will support up to 1,600 horsepower in an EFI setting.
Matthew outlines why going with this Dominator pump is a great choice for any EFI swap project like what we’re doing with the dragster.
“The Dominator pump is a versatile pump that works well in different applications. For drag racing, its billet construction helps create great longevity. The pump has -10 ORB fittings on the inlet and outlet sides for pumping ease. The Dual pump design allows you to use the EFI trigger when higher fuel flow is required,” Matthew explains.
Fuel pressure is critical for an EFI system, so having a regulator that is accurate is a must-have item.
If you plan on running a power-adder with the Sniper system, you also need to take that into account while designing the fuel system. Matthew points out that the fuel pump needs to have the ability to flow the proper amount of fuel for the amount of power you want to make. We used a Holley billet EFI bypass fuel pressure regulator (P/N 12-84
because it’s a versatile fuel pressure regulator that will work in our NA application, or in a boosted application if we go down that road in the future. When plumbing the fuel system it’s important to make sure the fuel return line you plumb into the system is large enough, because if you go too small you could experience erratic fuel pressure in an EFI application.
Another thing that’s different with an EFI system fuel system versus a carbureted fuel system is the use of fuel filters. When you’re acquiring parts for your swap, you must ensure you get the right filters to prevent damage to the fuel injectors. For our fuel system, we used a Holley 100 micron pre-filter (P/N 162-577) and a 10-micron post filter (P/N 162-575).
