What sets the Nostrum 2.3L Mustang Standard Bore Plus kit apart:
- Fully Laser Welded HPFP Construction
- Application Specific High Pressure Fuel Line
- Direct Bolt on Kit
- 240 bar / 24 MPa / 3500 psi max pressure
Achieve V8 levels of power! The EcoBoost Mustang is an impressive car out of the box, but there are those of us that are always looking for more power. While the 2.3 EcoBoost does respond very well to modification, they quickly become limited by the factory fuel system.
Nostrum’s SB+ HPFP for the EcoBoost 2.3 is capable of flowing 37% more fuel than the factory fuel pump. With a higher max operating pressure than our regular standard bore pump, and having a lower cost than the Big Bore pump, the Standard Bore Plus unlocks even more horsepower potential, and allows you to take full advantage of the Stage 1 injectors! This is perfect for anyone who is looking to get the most out of their stock turbo, or run pump E85! Ethanol is wonderful on turbo cars, as it has a higher octane rating and is less prone to knock than 91/93 pump gas, and you have the potential to make more power as a result. We have tested and confirmed that the NHP SB+ 2.3L EcoBoost Mustang GDI pump can be tuned on Cobb, HP Tuners and SCT software.
Nostrum backs every part we sell with a limited lifetime warranty. All Nostrum products come complete with everything you need inside the box, including detailed installation instructions. Tuning guides are also available for your dealer or tuner. We have customer service and calibration engineers on staff to provide you with any support that you may need, from installation to tuning.
What comes in the box:
- High Pressure Fuel Pump - fully welded, stainless-steel construction (37% flow increase over stock pump for the application)
- E85 compatible
- Pump kit includes accessories needed for installation including flange, low pressure fuel line, high pressure fuel tube, flange installation tool
- 100% production tested
- Install Guide provided
Vehicle application list:
- 2015-2023 2.3L EcoBoost Mustang
Recommended tuners:
Dyno graph sponsorship results:
JEM Sport let us borrow their stock Ecoboost to play with, we managed to pull off 359 WHP and 433 lb/ft of torque on an E30 tune - not bad for a car that still has a stock downpipe!
*Horsepower and Torque numbers are approximate and can vary significantly depending on numerous factors including what supporting upgrades are done to the vehicle, ambient temperature, elevation, road surface, tire selection & condition, fuel octane and quality, vehicle weight, and more. The advertised numbers herein are based on optimal conditions and utilizing proper supporting modifications. Your results may vary.
Frequently ask questions:
Q: What is the benefit of a higher operating pressure?
A: The higher operating pressure of the HPFP allows you to run the fuel injector at a higher pressure, sometimes higher than stock commanded pressure. This allows more injector flow (mass flow) by running the same injector at a higher pressure, say 240 bar rather than 200 bar. Increased pressure at the injector improves spray quality and penetration especially as boost pressure increases in highly boosted engines. So it's all about injector capacity and combustion quality (spray quality). Interestingly enough and contrary to popular belief, increasing HPFP operating pressure actually decreases volumetric efficiency.
Q: Why don't I see horsepower gains with just a pump?
A: Fundamentally we have to look at the entire fueling system and "where" in the rpm range the limits are. DI fuel systems in stock trim are often pump limited at middle rpm (peak torque) and injector limited at high rpm (peak power). This is due to engine speed. HPFPs are mechanically driven pumps (driven by the camshaft pump lobe spinning at ½ crank speed) and are RPM (engine speed) dependent. Many of the quoted flow increases in the aftermarket are purely displacement based comparisons: where by example the big bore pump has a piston diameter X% larger than the "stock" pump or the swept displacement ((3.14*(radius)^2)*(stroke))of the pump Y% larger than the stock pump. The larger displacement of the pump really shines in low rpm, where the fuel injector has plenty of time (crank angle degrees) to inject fuel. As the engines starts to approach peak power the engine speed starts to become quite short and is limiting the injection duration (crank angle degrees) for the injection event (which is another reason why we like to increase fuel pressure up high!)
Q: Why do your numbers say I will make less horsepower on E85 than 93 octane?
A: Great question! The numbers we list in the product descriptions are similar to the numbers a turbo charger lists for air flow. The numbers are the "fuel system capacity to generate power" regardless of the other engine system limitations (air handling, mechanical limitations, knock propensity). Essentially the numbers are calculated assuming "sufficiently large air flow", "sufficiently capable mechanical assemblies" and disregarding knock limits. The equation uses actual observed engine volumetric efficiency (when available from sponsorship vehicles) and fuel capacity (including target pressures) to calculate power. Gasoline has more energy per mass volume than E85. So the higher fuel flow capacity will mathematically generate higher power potential for a gasoline than a high ethanol content fuel. The other variables (air flow, spark, rotating assembly strength, charge cooling, mechanical assembly strength) are highly variable from build to build. This is why we state horsepower capacity for the fuel system – representing the potential of the fuel system if you have all the other aspects of your build addressed!
