We are installing a new FiTech fuel injection system along with the new 70 gal aluminum tank with new filters and a pair of electrical fuel pumps.
This is what the new Jim Bound's COOP 455 looked like with the old carb, distributer and spiderweb electrical wiring
.So far, the new FiTech is in place and the old wiring has been simplified and organized.
We have to fabricate a new throttle bracket (in the foreground) to make the FiTach throttle work in place of the carb.
Replacement Throttle Plate.
We have blocked off the old port for the old mechanical fuel pump in order to install a pair of FTach electrical fuel fuel pumps along side of each other. They will be wired so that only one of them can work at a time and in the event of a pump failure, the back up pump can be energized by throwing a single switch.
Redundancy.
Although the electrical power from the pump comes from the FiTech control system, these pumps draw 10 to 15 amps @ 12vdc by themselves. This is much more than the original gas pumps used.
According to FiTech, The FiTach unit draws 10-15 amps, the pump, 10-15 amps and the fan 30-40 amps. This is a maximum current draws of 70amps @ 12vdc. Can your alternator handle that along with the other 12vdc needs on your coach?
I have upgraded my alternator to a Balmar 160 amp, 12vdc alternator (red One) controlled by a very sophisticated WakeSpeed remote regulator that is programed to charge a battery bank of (10) BattleBorn 12v 100ah battereis (1,000ah).
I suspect that a lot of fuel injection failure or under performance issues are coming from a limited availab=ility of clean 12vdc current, especially when another device needed 12vdc power starts up. That might cause intermittent problems with the fuel injection system.
The separate DieHard Gold starting battery is charged by a Sterling 12v t battery to 12v battery charger. The DieHard provides 800 CCA to start the engine without drawing current from the FiTech.
