BMW fuel pumps run at a very high pressure in order to properly supply the injectors with fuel. A failed pump will allow the car to crank, but wont kick over. Turner Motorsports carries Genuine BMW pumps that will have you back on the road in no time.
Adjust your fuel pressure as needed. Thanks to the 1:1 boost reference, fuel pressure will increase as boost pressure increases, ensuring fuel delivery remains optimal under all conditions.
Spool Performance is a top name in the BMW Forced Induction industry. Their team of young and intelligent engineers pair their passion for the industry with a rich education background, which results in a high-quality enthusiast-minded products. Spool Performance's state-of-the-art upgrades for your BMW fueling systems are a surefire way to make more power, reliably. The Helix from Spool is simply a planetary gearbox for your High-pressure fuel pump. The particular configuration of the gears and their spatial fixturing allows an axial increase in shaft speed from the input to the output of the unit. The early N55 high-pressure pump is a very capable and over-engineered piece of hardware. As we start tuning and pushing more power, we start seeing drops in the high pressure. What is happening here is that the high-pressure pump is not able pump as much fuel as the injectors are injecting into the cylinders and hence causing the rail pressures to drop. The pump at this point is running out of displacement volume. With a rotary pump like the continental HPFP, an easier way to increase displacement is to spin the pump faster which results in an increased number of delivery strokes per cycle. The Helix helps you do exactly this and thus helps overcome a big limitation in early N55 fuel systems without the complexity of a secondary port injection system.
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Introducing the N55 Gauntlet High-Pressure Fuel Pump, the latest innovation from Precision Raceworks, built to outperform and provide unmatched value for N55 enthusiasts. Engineered to flow 70% more fuel than stock and 4% more than the original Big Bore, the Gauntlet sets a new standard in high-performance fuel delivery. Whether you’re looking to maximize power or prepare for future upgrades, the Gauntlet HPFP is designed to meet your needs with exceptional performance and reliability. The Gauntlet HPFP supports up to 240 bar fuel rail pressure, providing consistent fuel delivery for even the most demanding applications. Whether you’re running pump gas, E85, or any blend in between, the Gauntlet is proven through over 60,000 miles of on-road testing and dynamic testing on HPFP test benches.
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