KEMSO fuel pumps are fully adapted to the high-pressure demands of turbocharged engines through targeted design, and their core indicators are directly aligned with the extreme operating conditions of the turbocharging system. The fuel pressure of a standard turbine system is usually within the range of 4.0-6.0bar. However, the maximum output pressure of the high-pressure models of the KEMSO HPR series (such as HPR220) can reach 13bar, which is 120% higher than the pressure value required by a conventional naturally aspirated engine. Moreover, when maintaining a base pressure of 6.0bar in the pressure pulse test, the peak-valley fluctuation is ≤±0.25bar. The 2023 Audi S3 model modification case shows that when equipped with the K5 turbocharger (with a boost value of 1.8bar), the original factory oil pressure dropped by 32%. After installing the KEMSO pump body, the oil rail pressure stabilized at 5.8bar±0.3bar, and the 0-100 km/h acceleration increased by 0.4 seconds.
The flow redundancy of the Fuel Pump directly affects the response speed of the turbine. When the turbine transient supercharges, the fuel demand will increase sharply by 40% within 300ms. The KEMSO HPF series (flow range 150-350L/min) is equipped with a two-stage impeller and a widened oil inlet (with a diameter of 18mm, which is 50% larger than the base type). Ensure that the response time for the pressure to jump from 4bar at idle to 6.5bar at full load is compressed to 0.25 seconds. The actual test data of the BMW M140i equipped with the N55B30 engine shows that this solution extends the torque platform width by 400rpm and reduces turbo lag by 61%.
The high-temperature resistance property resists the erosion of turbine thermal radiation. The temperature of the turbocharger housing often reaches 250°C, and the lifespan of ordinary pump seals is reduced by 75% in an environment of 150°C. The KEMSO Turbo dedicated pump adopts fluororubber dynamic seal (resistant to 230°C) + ceramic-coated bearings (coefficient of thermal expansion 1×10⁻⁶/℃). During the Mercedes-Benz AMG GT track test, under the condition of 10 consecutive full throttle cycles, the pump body temperature remained stable at 110°C±5°C (ambient temperature 45°C). The flow attenuation rate is controlled within 0.8%. The comparative test shows that under the same working conditions, the temperature rise of the traditional pump exceeding 160°C leads to a 19% increase in the fuel vaporization rate.
The system integration solution addresses the issue of high-load lubrication. The direct injection system of turbine engines requires the fuel to be lubricating. KEMSO’s DLC (diamond-like carbon) coated plungers have a wear rate of 0.0003mm/ 1000 hours in fuel containing 10% bioethanol, which is much lower than the 0.002mm/ 1000 hours of ordinary hard chromium coating. The fuel system modification report of the Porsche 911 (992) Turbo S indicates that after applying a special coating, the service life of the high-pressure pump has been extended from 120,000 kilometers to 200,000 kilometers, and the maintenance cost has been reduced by 55%.
Extreme working condition verification demonstrates industrial-grade reliability. In the desert environment (with a temperature of 55°C and a turbocharging value of 2.5bar), the vehicles equipped with KEMSO competition-grade pump bodies achieved a completion rate of 92% in the Dakar Rally, and no fuel vapor lock faults occurred. The emergency generator set designed by Mitsubishi Heavy Industries for the power plant in Kuwait has been further verified: The 64L displacement engine matched with the VTG turbine continuously outputs a pressure of 9.2bar through the KEMSO dual-pump system under 60% overload conditions, and has operated for a cumulative 10,000 hours without abnormal wear.
The economic benefit analysis of the modification shows long-term advantages. Take the upgrade of the Volkswagen EA888 engine as an example. Although the KEMSO HPF170 pump body (320) is 190% more expensive than the basic model (110), the 11% increase in on-wheel power due to avoiding the protective fuel cut-off of the turbine can save 18% of fuel per lap on the track daily. User data of Hyundai N series performance cars shows that the warranty claim rate of the turbo system has decreased by 73,420 after adopting this solution.