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.
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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The Dorch DS15B High-Pressure Fuel Pump Upgrade is the definitive choice for drivers demanding uncompromised fuel delivery under heavy load. The stock pump simply cannot keep up with the volume required for upgraded turbos
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Eliminate the fueling limits and maintain factory-level reliability with the Dorch Engineering DS15 HPFP Upgrade. This "Stage 1.5" pump replaces the successful DS1, engineered specifically to handle the flow demands of aggressive tuning
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Engineered specifically for high power builds that push the direct injection threshold, this lift kit overrides the typical N55 fueling bottleneck by overdriving the high pressure fuel pump mechanism.
The Dorch Engineering Lift Kit HPFP Upgrade is engineered to completely eradicate direct-injection fueling limitations, providing up to 38% more flow volume on top of your existing Dorch fuel pump setup.
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The Dorch Engineering N55 PWG Lift Kit is the upgrade your BMW needs. By optimizing the fuel pump lift profile, this kit allows your HPFP to pump significantly more fuel per revolution. Designed specifically for the early Pneumatic Wastegate (PWG) N55 engines
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The factory N55 fueling system leaves a lot to be desired once you turn up the boost. Enter the Dorch Engineering HPFP Lift Kit. This kit is a calculated, high performance solution designed specifically for PWG N55 engines to extract maximum flow from your fueling setup by altering the mechanical lift profile of the pump drive
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