FiTech 40004 Command Center 2 Questions

Posted by Alan MacDonald on

Questions about FiTech 40004 Command Center 2 EFI Sump Fuel Tank

FiTech 40004 Command Center 2 Canada

Fitech has discontinued the Fuel Command Centre #40003 and replaced it with Version 2.0 Fuel Command Center 2 part #40004.

The Command Center 2 is designed to be used in vehicles with stock fuel tanks converting from a carburetor to EFI. Complete new design from years of testing has resulted in the most effective system anywhere. The pump in the Command Center 2 never gets uncovered because it receives a steady supply of fuel from your existing fuel system. So your system maintains a constant flow of fuel. The built-in regulator eliminates the need for an external regulator. Since the Command Center 2 is constantly circulating fuel to and from your tank, your fuel pump stays cooler and will have a longer life. The fuel pump noise is also muffled by being submerged in fuel 100% of the time. The Command Center 2 is the best way to provide the necessary increase in volume when adding a power adder such as boost or nitrous to your engine. So, whether you are racing, off-roading, or just cruising, this “compact” external fuel assembly is your all in one solution.



l know that with Fitech's original Fuel Command Center (FCC) they had boiling over issues due to engine heat. l've seen numerous videos on youtube addressing this problem. Did they fix these issues? Also, do you have run a return line back to your tank?

The 2nd generation FCC is much improved, but some vehicles are just hot underhood. But if the FCC is mounted well away from the exhaust (I’ve seen them installed right next to exhaust) you should be OK. And while you don’t need a fuel return line, you do have to run a vent line to the tank, which is almost exactly as much work.

In my honest opinion the benefits of some kind of in-tank pump, like the FiTech 40015, outweighs the additional work to install. Submerged high-pressure fuel pumps run quieter, cooler and longer than inline ones. And having 2 separate fuel systems (low pressure to the FCC, High pressure to the EFI) has multiple more places to leak and seems to me to be more complex than necessary.



I currently have an efi pump in my gas tank running at 38psi - is this compatible with Fuel Command Center 2?

That’s too much inlet pressure for the Command Centre. Realistically the best option would be to upgrade the in tank pump.



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