If you hang around any forums or look through automotive groups on any social media platform, you will often see the question, “What fuel pump do I need to make XX horsepower?” Choosing a fuel pump with horsepower goals in mind can get complex, with many different answers.

Firstly, we’re going to break it down to helpyou you understand what fuel pump you may need. Then, we'll cover any other considerations to keep in mind as you make plans for your fuel system.

What Fuel Pump Do I Need?

Most of the time just making a few more horsepower can be accomplished with your current fuel pump. That’s particularly true for a Ford Mustang, Dodge Hellcat, or Chevy Camaro, or Corvette. At a higher horsepower, the fuel pump you have won’t be able to pump enough fuel though. That is where Quantum Fuel Systems can offer a better option.

We have multiple fuel pumps available that can support up to 1,000 horsepower at the engine. The chart uses the standard of 2.64 horsepower per LPH (liter per hour) as the conversion criteria.

PART NUMBER	PART DESCRIPTION	HORSEPOWER SUPPORT
HFP-367	165LPH IN TANK OEM REPLACEMENT FUEL PUMP	435
HFP-603	190 LPH IN LINE UNIVERSAL PUMP	501
HFP-342	255LPH IN TANK PERFORMANCE FUEL PUMP	673
QFS-342FT	340LPH IN TANK EFI PERFORMANCE FUEL PUMP	897
QFS-343FT	340LPH IN TANK FUEL PUMP PERFORMANCE FUEL PUMP	897
QFS-606FT	380LPH IN LINE EXTERNAL E85 COMPATIBLE FUEL PUMP	1000

Adding a larger fuel pump may require modification of your housing to clear a larger fuel pump. Specifically, creating windows in the assembly housing or enlarging current windows or recesses currently in there.

Other Considerations When Adding a Larger Fuel Pump:

What fuel will you be using?

Most upgrades are to flow standard or high-octane gasoline (such as E10 or E15 depending on your location). E85 fuel systems typically require 40% more operating fuel flow. If you plan to move to an E85/flex-fuel system, you will need to consider this extra volume. For this reason you should purchase a fuel pump one or two sizes larger than you need for standard gasoline.

Here's Everything You Need To Know About Switching to E85!

Can your current fuel tank enclose a larger fuel pump internally? Or will the new system require an externally mounted pump?

Moving from an internal pump to an external pump may require a different inlet strainer and pre-filter to keep contaminants out of the new fuel pump. You may also need a new mounting system (such as insulated fuel pump mounting brackets) for an externally mounted pump.

Will your other fuel components handle the additional volume and higher horsepower?

Are your fuel lines large enough to support 600 horsepower, 700, 800, etc.? Do you need a larger pre-filter or fuel filter for extra volume? Lastly, what size and type of fuel injectors are needed to meet your horsepower goals?

High horsepower and high fuel flow can require added safeguards. Therefore, an external fuel pressure gauge might be advantageous for tuning your new system

A gauge can be an easy addition while you complete the other work, and it can add some comfort in being able to see how your system is performing initially and months or years later.

The last thing to consider would be the minor details for a clean upgrade. Do you need an installation kit complete with electrical connectors, hose clamps, and protective sleeves? Conveniently, most Quantum Fuel Systems fuel pumps come with vehicle-specific installation kits, use the Year Make & Model search to find compatible pumps and kits for your application.

QFS Is Here To Help

Looking through all of this information, it’s easy to feel overwhelmed when trying to add a few more horsepower. Some pumps are designed to drop in your current internally mounted tank and be ready to go within a few hours.

Subsequently, you may need injectors, fuel lines, and some extra accessories to support the horsepower goal. Whichever situation you have, there’s no need to stress over what pieces and pumps you need.