MODIFIED Fuel Pump Driver Modules (FPDM)
WHEN DO YOU NEED IT?
If you are running a pair of big
returnless fuel pumps (i.e. Lincoln Aviator, Ford Focus, or Ford GT)
and/or running '03/'04 SVT Cobra dual pumps with a pump voltage booster
in your high-horsepower Mustang you NEED to have your FPDM modified.
This modification allows the Ford Mustang driver (99-04) to sink
substantially more current (up to 25Amps) without overheating. What
happens when the stock driver overheats? It goes into thermal limiting
and cuts ALL fuel supply to your engine until the driver temperature
drops below a safe level. As I'm sure you're aware, the loss of fuel
pressure with your engine at full load can often times be catastrophic!
This modification will NOT require a
retune of your vehicle. It will not reduce reliability of the driver or
of the system. In fact, the driver will run much cooler than in the
stock configuration which will prolong its life even when used with
high-flow, high-current dual pumps.
WHEN DON'T YOU NEED IT?
This modification is NOT necessary if
you are running stock '03/'04 Cobra dual pumps without a pump voltage
booster or a single Aviator, Focus, or Ford GT pump without a pump
voltage booster. It will not hurt to do this modification with the
above mentioned systems but it is not necessary as those pump setups
all draw less than 18Amps at full load.
WHAT IS THE DIFFERENCE BETWEEN STAGE1 AND STAGE2?
The Stage1 FPDM upgrade mitigates the
thermal limiting problem encountered when running non-stock dual fuel
pumps on a '99-'04 Ford vehicle with returnless fuel system. It also
reduces voltage drop in the FPDM by roughly 5% and thereby makes
available roughly 5% more fuel capacity with your current fuel system.
The Stage2 FPDM upgrade has all of the characteristics of the Stage1 upgrade but further reduces
the internal voltage drop by a total of 10% at full load. So, if you
are just maxing out that fuel system and are looking for that
additional safety margin, this product will give you roughly 10% more fuel to keep your pony in one piece.
