RobbMC Gen II PowerSurge Fuel Surge Tank

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Part Number:PS500

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RobbMc PowerSurge: An Easier Way to Upgrade Your Fuel System

The RobbMc PowerSurge (PS) is a high-performance fuel system designed to enhance rather than replace your stock fuel system. The PowerSurge is small (5" in diameter and 8" tall) but once mounted in your car, the PowerSurge works with your stock fuel system to support up to 1000 horsepower! (See chart below for horsepower ratings).

The PowerSurge can be used with carburetors or fuel injection, (naturally aspirated or forced induction) and installs quickly and easily. Unlike normal fuel pumps designed for high horsepower applications, the PowerSurge requires no changes to the factory fuel system.

No need to change your fuel lines: Use your stock 5/16" or 3/8" fuel lines.
No need to change your stock fuel pump: Use your stock low performance fuel pump available at any auto parts store.
No need to replace the sending unit in your fuel tank: Use your stock 5/16" or 3/8" sending unit.
No need to sump your tank or install a fuel cell: Use your stock fuel tank with no worries about acceleration or cornering.
No need to get under your car: The PowerSurge can be installed in your engine compartment. Connect it to your stock fuel pump, your carb or fuel injection, your factory 1/4" return line, and a bypass regulator (see notes below). Then connect one wire to switched 12V power and one to ground. That's it. No crawling around under the car to install.

Because the electric fuel pump in the PowerSurge is submerged in gasoline, the pump is very quiet. Also, because it is submerged, there is no chance of the pump sucking air into the system during acceleration or cornering.

The PowerSurge is ideal when converting older vehicles to fuel injection because your stock fuel system (including your stock fuel pump) is retained. This not only makes it easy to install, it makes it very easy to convert the car back to original if desired.

Horsepower Ratings: The amount of crank horsepower (HP) each PowerSurge can support depends on the maximum fuel pressure required. The more fuel pressure required, the less horsepower that can be supported.

Fuel Pressure (PSI) Max HP (PS500) Notes:

7 700 All ratings @ 13.5 volts

25 625 Subtract 75 HP @ 12 volts

40 575 All ratings for gasoline.

60 500 Subtract 30% for E85

70 450

90 325

Notes:

The PowerSurge must be used with a bypass (return style) regulator. However, some fuel injection systems have an internal bypass regulator. With these systems, no additional regulator is required.
For use with gasoline or ethanol. Not recommended for use with methanol.
Not recommended for applications requiring more than 75 psi (90 psi intermittent).
Requires the use of a factory 1/4" return line to the fuel tank. If not present, a 1/4" or larger return line must be added.
Made in the USA.

You will need to purchase (locally) the following:

2 quantity 3/8" NPT (3/8" tapered pipe) fittings for the return and feed. One end of the fittings needs to be 3/8" NPT male. The other end depends on the type of hoses used. Note that the feed hose is under high pressure, so you can use either a -6AN hose and fitting, or an inverted flare, SAE 45 degree, etc. On the return hose, you can use a simple nipple and hose clamps since it is low pressure.
fuel hose rated to the pressure your system needs, going from the factory mechanical pump to the Surge tank, and from the Surge Tank to the EFI or Carb you are using.
heat shield for the fuel hose is recommended
heat shield for the Surge tank is recommended

Q: Does this work with an ls swap?

Asked by: Daniel Elia - 4/6/2020

A: Yes! These will support up to 75 psi constant pressure, and up to 90 psi intermittent pressure.

Was this answer helpful? 1 of 1 Customer(s) found this Answer helpful.

Answer provided by: Ryan (4/7/2020)

Q: Where is the best place to mount unit under the hood of a 1986 grand wagoneer?

Asked by: Todd - 6/15/2020

A: The most popular installation spot is on the driver inner fender near the overflow tank. Some put it right against the core support, while others move it back slightly, and have it near the back of the overflow tank.

Was this answer helpful? 1 of 1 Customer(s) found this Answer helpful.

Answer provided by: Ryan (6/15/2020)

Q: Does this help with the vapor locking issue? Thanks

Asked by: Tim - 5/18/2020

A: Yes, this will aid with Vapor Lock

Was this answer helpful? 0 of 0 Customer(s) found this Answer helpful.

Answer provided by: Ryan (5/19/2020)

Q: The Edelbrock surge tank has a 45 degree incline limitation. What are the incline limits for your surge tank?

Asked by: Reed - 7/6/2020

A: It depends on the exact circumstances (ie: was the engine at full throttle and if so, how long?). In general, a 90-degree angle is still good. Most of the time (unless the engine has recently been at full throttle for a long time such as salt flat racing or offshore racing), the surge tank is completely full so it would work even upside down.

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Answer provided by: Ryan (7/7/2020)

Q: does this come with all the fittings I need for install? Or will I need to purchase additional fittings? Also, if I'm using the sniper kit from holley I won't need to get the additional regulator correct?

Asked by: Jared Cooper - 8/27/2020

A: Correct, the Holley Sniper is a regulated EFI, so you don't need to buy a separate regulator. For the fittings / etc: You will need to purchase (locally) the following:

1) 2 quantity 3/8" NPT (3/8" tapered pipe) fittings for the return and feed. One end of the fittings needs to be 3/8" NPT male. The other end depends on the type of hoses used. Note that the feed hose is under high pressure, so you can use either a -6AN hose and fitting, or an inverted flare, SAE 45 degree, etc. On the return hose, you can use a simple nipple and hose clamps since it is low pressure.

2) fuel hose rated to the pressure your system needs, going from the factory mechanical pump to the Surge tank, and from the Surge Tank to the EFI or Carb you are using.

3) heat shield for the fuel hose is recommended

4) heat shield for the Surge tank is recommended

Was this answer helpful? 0 of 0 Customer(s) found this Answer helpful.

Answer provided by: Ryan (8/31/2020)

Q: can this eliminate the need for the vapor canister?

Asked by: dave - 9/15/2021

A: The surge tank is a fuel pump system where the pump stays submerged in fuel inside the canister. This is not the same as a vapor canister, which is designed to recover vapors from the fuel tank.

Was this answer helpful? 0 of 0 Customer(s) found this Answer helpful.

Answer provided by: Ryan (9/16/2021)

Fits:All Full Size Jeeps
Works with Carburetors or Fuel Injection!
Works with Stock Fuel Pump, Sending Unit and Lines!
The PowerSurge Must Be Used With A Bypass (Return Style) Regulator
Works with Gasoline or Ethanol (Not Recommended For Use With Methanol)
Not Recommended For Applications Requiring More Than 75 PSI (90 PSI Intermittent)
Requires 1/4" Return Line To Fuel Tank
Bypass Regulator Available Here
Surge Tank Instructions (PDF Format)
Made in the USA