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 N54/early n55 high-pressure pump is a very capable and over-engineered piece of hardware. They do a good job supplying fuel at high pressures at stock power levels. 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 N54/early N55 fuel systems without the complexity of a secondary port injection system.
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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.
If you are looking to get more power out of your BMW, it's important not to forget your fueling system! Your low and high-pressure fuel pumps can only flow so much fuel, limiting power potential regardless of turbo size or other power adders, especially true when running ethanol blends. Bring your fuel system up to par with Precision Raceworks' E7x X5/X6 High-Performance Fuel Pump Kits! Precision's low-pressure fuel pumps are designed to flow significantly more fuel than your BMW's stock system, ideal for customers who are upgrading their vehicles or plan to run blended fuel or E85 alone. Best of all, these pumps ship completely assembled and ready to install! New pump, new fuel filter, and new sending unit included! This is a true plug-and-play solution that anyone can install in their home garage and start taking advantage of the benefits right away. By design, a fuel pump such as this is ideal for daily driving and racing applications of all kinds. This system keeps the primary pump fully submerged in fuel regardless of tank level or the g-force the car is subjected to. Precision Raceworks' Stage 2+ bucketed fuel pump kit includes a Walbro 535 (F90000295) fuel pump, capable of supporting up to 675whp on 93 octane pump gas or 600whp on 100% E85! Even better yet? No wires to cut or splice, nothing to assemble, 100% OEM quality, and drop-in ready. Included in the box New genuine OEM fuel pump bucket assembly (Pre-assembled with genuine Walbro 535 pump) Includes new fuel sending unit (fuel level sensor) New primary and secondary fuel filters Stage 2+ Specifications: Horsepower Supported Pump Gas: ~675whp Horsepower Supported 100% E85: ~600whp Aftermarket EKP Required: No **Some European Spec vehicles may require the re-use of the top hat due to differences in emissions requirements.
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The filter unit on the continental rotary high pressure fuel pumps perform an important function of final stage filtering of fine particle impurities before it reaches the hpfp pump chamber or worse, the injectors leading to leaky injectors. The problem with them is that they are extremely tiny and restrictive and sometimes even rupture failing to filter at all. The issue becomes worse when running high-performance products like the Spool Helix overdrive system because now you have an increased flow requirement through this filter that it just cannot keep up.
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If you are looking to get more power out of your BMW, it's important not to forget your fueling system! Your low and high-pressure fuel pumps can only flow so much fuel, limiting power potential regardless of turbo size or other power adders, especially true when running ethanol blends. Bring your fuel system up to par with Precision Raceworks' E7x X5/X6 High-Performance Fuel Pump Kits! Precision's low-pressure fuel pumps are designed to flow significantly more fuel than your BMW's stock system, ideal for customers who are upgrading their vehicles or plan to run blended fuel or E85 alone. Best of all, these pumps ship completely assembled and ready to install! New pump, new fuel filter, and new sending unit included! This is a true plug-and-play solution that anyone can install in their home garage and start taking advantage of the benefits right away. By design, a fuel pump such as this is ideal for daily driving and racing applications of all kinds. This system keeps the primary pump fully submerged in fuel regardless of tank level or the g-force the car is subjected to. Precision Raceworks' Stage 3 bucketed fuel pump kit includes two Walbro 450 (F90000274) fuel pumps, capable of supporting up to 900whp on 93 octane pump gas or 800whp on 100% E85! Even better yet? No wires to cut or splice, nothing to assemble, 100% OEM quality, and drop-in ready.
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