![](/html/5c/5c54/5c54473b07f38d770c580685941afb8ab0f03aeac53a40530e3f9a796ae31039/bg1.png)
ECS Stage I Fuel System Instructions
The ECS Stage I fuel System is designed for late model Corvettes not exceeding 750 RWHP.
The System comes with a ECS Made custom in tank fitting, A Bosch 044 fuel pump, braided 8 AN fuel
line, an assortment of anodized fittings, a check valve, and a fuel line adapter. The entire system installs
in the rear of the car without the need to drop the tank.
You are working with Fuel. Be mindful of any sources of heat, sparks or any other conditions that could
cause a fire. ECS cannot and will not be held responsible for any damages caused by installation.
Start with an empty fuel tank.
Disconnect the neg a ti ve ba tte ry cab le.
With the car on a lift or jack stands, remove the driver’s side rear wheel and inner fender
liner.
Using a file or wiz wheel with a Roll Lock sanding disk, prepare the exterior surface of the driver’s side
tank to be sure that the surface is flush and true.
Approximately 3 inches from seam and 2 ¾ inches from
bottom of tank make a mark where you will be drilling for
the ECS in tank auxiliary fuel pick up assembly.
![](/html/5c/5c54/5c54473b07f38d770c580685941afb8ab0f03aeac53a40530e3f9a796ae31039/bg2.png)
With a 90 degree drill, or a long drill
extention, Use the supplied 1 ¾ hole saw, drill
tank as shown being sure to de burr tank and
clean any residual debris from tank
afterwards.
Installing ECS Auxiliary Fuel Pick Up
Assembly
With the Brass wire tool provided, insert
fuel backer plate into tank as shown.
![](/html/5c/5c54/5c54473b07f38d770c580685941afb8ab0f03aeac53a40530e3f9a796ae31039/bg3.png)
Suspend backer plate freely in tank.
Insert fuel puck up with fuel sock being careful
not to hit backer plate.
Pull fuel pick up tube to hold backer plate to
back of tank rotating fuel block so the return is
at the 12 o’clock position.
Slide backer plate over fuel pick up tube