Fuel Pump

New DCSS 39/50 High-Performance Pump – F90000295

• Highest flow in-tank brushed fuel pump offering from TI Automotive / Walbro
• No Internal check valve - ideal for racing applications to build oil pressure prior to start-up
• Featuring award-winning DCSS technology
• E85 compatible
• High-pressure relief setting - supports supercharger and turbo applications
• Capable of supporting 900+HP at 60PSI naturally aspirated applications
• Complete Pump and kit combination – TCD495

Fuel: GAS & E85

Horsepower: 900+ at 60PSI, naturally aspirated applications

Over All Pump Length: 131mm

Main Housing Diameter: 39mm

Lower Housing Diameter: 50mm

Fuel Inlet Diameter: 11mm OD

Fuel Outlet Diameter: 11mm OD

Flow Rate: 535LPH at 40psi

Test Voltage: 13.5 Volts

The Precision Raceworks G8x/G2x Stand Alone Auxiliary Fuel System is the highest-performing and most stable low-pressure fuel system on the market! Forget about how things have been done and embrace the benefits of dedicated fueling for your port injection!

Since direct injection came out for BMW, enthusiasts have been adding port injection.  With this came the need to upgrade the low-pressure fuel system to keep up.  Historically this was done by increasing the output of the main fuel system.  Unfortunately, the main fuel pump is controlled using PWM by a factory programmed controller designed to reduce output when target fuel pressure (typically 5 bar) is exceeded, creating a constant battle when pumps are added or upgraded.  This limits upgraded fuel pumps from performing to their full potential.

Additionally, the high-pressure pump control system dumps fuel back into the low-pressure system at high pressure low volume resulting in oscillations of the low-pressure fuel system.  Because of this, the DI system in the car is required to constantly make corrections to keep target AFR in check.

With this stand-alone low-pressure fuel system dedicated to your port fueling that is a thing of the past!  Get rock-solid fuel pressures at any pressure, run fuel pressures that are 1:1 scalable to boost pressure, flow more fuel with dedicated lines, run smaller injectors and still get more fuel than you did with large injectors (allowing for higher resolution), put less demand on the car’s DI system to correct for fluctuations in pressure, even your tuner will be grateful as the system makes tuning of port fueling even easier and more accurate, the list of benefits goes on and on!

Features & Benefits

Billet Aluminum top hat with 3 high-flow fuel ports

Dedicated fuel pump(s) for port injection system

Optimal pump location resistant to fuel slosh under acceleration

Fully adjustable 1:1 scaling billet fuel pressure regulator

10-micron USA made Microglass fuel filter (Ideal for E85)

Smooth bore high flow PTFE fuel feed & return lines (AN6)

All billet connections for both fuel line fittings and top-hat

Plug and play connectors inside and outside* the top hat

Configurable pump activation harness (see instructions for more details)

Increased injector flow (when using 1:1 regulator feature vs static)

Compatible with all stock or upgraded primary fuel pumps

Easily expandable and upgrade-able for more fuel

All components and parts feature 100% Ethanol Compatibility

The AFS.800 dedicated auxiliary fuel system comes with all** necessary components to provide dedicated fuel system for port injection.  Featuring Two Walbro 535’s (F9000295) fuel pumps with a combined flow of 800LPH at 3 bar.

Pump flow 43.5 psi-a : 800 lph

Recommended base pressure: 43.5 psi-g

Maximum Fuel Pressure: 110 psi-g

Number of Fuel Output Ports: 2

Number of Fuel Return Ports: 1

Pump 1: Walbro 535 (F90000295)

Pump 2: Walbro 535 (F90000295)

Available (unused) Electrical Connections: 2*

Total System Weight:14 lbs (including fuel lines and wiring harness)

*At time of install some wiring in the car may need to be cut and spliced to connectors included in this kit

**Male AN8-ORB to Female AN6-ORB adapter may be required for compatibility with some fuel rails (not included in kit)

Enhance Fuel Pressure with Engine Bay Metal Pump

This metal pump, situated in the engine bay, is designed to boost pressure for the direct injection system. It includes a sealing O-ring and connects from the fuel feed to the fuel rail pressure line. Notably, this unit is equipped with the smaller spring.

Key Details:

• Enhances fuel pressure for direct injection systems
• Includes a sealing O-ring for a secure installation
• Connects from the fuel feed to the fuel rail pressure line
• Features the smaller spring unit for specific applications

Upgrade your engine's performance with this reliable metal pump.

This OEM fuel filter is a must during any major service or tune-up. With a clogged or dirty filter, you are starving your engine of gasoline which can result in dangerous cutting out, rough running, or even a no-start situation. Bosch filters are premium grade filters that will keep your fuel system in top shape the same as, or better than, Genuine filters, without having to spend the Genuine BMW price.

Bosch is one of the largest OEM producers of Genuine BMW and aftermarket parts in the world, providing parts for almost every major automotive manufacturer. Bosch has likely supplied many of the original electrical (and mechanical) parts for your BMW. Thanks to their quality, high durability, and reliability, you should expect a long service life from Bosch products.

As a leading source of high-performance BMW parts and accessories since 1993, we at Turner Motorsport are honored to be the go-to supplier for tens of thousands of enthusiasts the world over. With over two decades of parts, service, and racing experience under our belt, we provide only quality performance and replacement parts. All of our performance parts are those we would (and do!) install and run on our own cars, as well as replacement parts that are Genuine BMW or from OEM manufacturers. We only offer parts we know you can trust to perform!