The factory 1.6 & 2.0 EcoBoost fuel systems are designed to operate at pressures up to 15MPa in factory form, with capabilities of operating at maximum pressures up to 20MPa with calibration changes. The factory fuel rail sensor is incapable of reading pressures beyond 20MPa, thus it is necessary to replace the factory sensor with the Nostrum Fuel Rail Pressure Sensor in order to take full advantage of the Nostrum Standard Bore Plus high pressure fuel pump, which is capable of operating at pressures up to 24MPa (240 Bar, or 3480 psi). Going from 20 to 24 MPa results in an additional 10% increase in injector flow!
***Please note that this sensor does require immediate calibration!!***
- (14-19) Ford Fiesta ST 1.6L EcoBoost
- (13-18) Ford Focus ST 2.0L Ecoboost
Frequently ask questions:
Q: What is the benefit of a higher max 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: Does this sensor require a tune?
A: Yes, you will need a tune to use this sensor in your vehicle. It is typically installed at the same time as the upgraded HPFP. Tuning guides are available for dealers and tuners!
Q: Will this sensor work with the stock HPFP?
A: No, the factory HPFP would not benefit from this sensor as the factory pump cannot achieve the same pressures as the Nostrum HPFP.
Dyno graphs:
The graph above shows how a stock fuel system 1.6 on 93 octane (green line) stacks up to the Nostrum fuel system on pump E85 (~E70, red and blue lines). We were able to pick up substantial HP and TQ gains on E85 straight out of the pump - no blending required!
The graph below shows the requested vs actual fuel pressure from those dyno runs. As you can see, the pump very quickly builds pressure all the way up to 240 bar and hold its steady throughout the rev range!
