Radium Engineering MPFST-R is the perfect solution for simplifying a high power vehicle experiencing fuel starvation during aggressive driving. When compared to a typical surge tank, there is one less port fitting. Instead, the built-in regulator returns low pressure fuel directly into the surge tank negating the need for an external FPR return line.
Furthermore, up to 3 high flowing fuel pumps (described below) can be installed in the surge tank.
PUMP COMPATIBILITY
Walbro F90000267
Walbro F90000274
Walbro F90000285
Walbro F90000295 (does not come with a check valve)
To use the following brushless pumps, the 13-1187 TRIPLE PUMP BASE, 12MM INLET BRUSHLESS PUMPS must be purchased separately.
-Protec 11928
-Fuelab 49614
-Deatchwerks DW810
PLUMBING
The fuel pump outlets merge through a built-in fuel pressure regulator and exit the MPFST-R via a single outlet simplifying external plumbing. And because the compatible pumps utilize check valves, staging is permitted.
This "FUEL PUMP OUTLET" port is 10AN ORB threaded but comes preinstalled with a -8AN male adapter fitting. The "OVERFLOW", "SUPPLY", and "RETURN" ports are all 8AN ORB threaded but come preinstalled with -6AN male adapter fittings. All of these fittings can be swFuel enters the large canister from 2 sources: the built-in FPR and the lift pump. During this process, the fuel flow gets redirected and runs tangential through the canister creating a swirl pot. This helps eliminate unwanted air bubbles and fuel foam that can affect fuel pump and engine performance. apped out with different sizes (sold separately).
FILTRATION
All pumps use the provided stainless steel mesh inlet screen for pre pump filtration shown above. As depicted below, fuel cannot pass between the 3 independent filtration chambers (A, B, C)
ELECTRICAL
The fuel pump power connections are handled with specially designed anti-rotation high-current electrical studs.
MOUNTING
It is common for surge tanks to be mounted inside the vehicle
BUILT-IN REGULATOR
RA-series regulators feature the first tool-less pressure adjustment. A jam nut and set screw are no longer required. With a simple turn of the knob, pressure will be increased or decreased. Additionally, there are no inherent air (vacuum/boost) leaks through the threads that traditionally a smoke detector would pick up.
