Replacement high flow fuel pump for Bosch HPD5 and Bosch 645 Golf R fuel injectors. Includes new high pressure tube, electrical harness adapter, installation tool and all required hardware.
- MK6 GTI (2010-2014) (CBFA/CCTA)
- Stratifiedauto
- Boost Controled Performance
Dyno graph sponsorship results:
Frequently ask questions:
Q: What is the difference between the Stages (for injector and bundles)?
A: The specifications depend on the engine application. Usually the Stage 1 bundles are focused for stock-turbo FBO E85 builds and Stage 2 are focused on big turbo/built builds. In some cases we even expand to stage 3 depending on the capability of the platform, such as the Ford 3.0L EcoBoost and the BMW S55 platforms. The reason we offer stages is to satisfy multiple customer profiles, where the Stage 1 is offering more value and the Stage 2 is offering higher performance capability. This strategy is more customer centric then a one size fits all solution and we have seen very good success in all our other platforms.
Q: Why do your numbers say I will make less horsepower on E85 than 93 octane?
A: Great question! The numbers we list in the product descriptions are similar to the numbers a turbo charger lists for air flow. The numbers are the "fuel system capacity to generate power" regardless of the other engine system limitations (air handling, mechanical limitations, knock propensity). Essentially the numbers are calculated assuming "sufficiently large air flow", "sufficiently capable mechanical assemblies" and disregarding knock limits. The equation uses actual observed engine volumetric efficiency (when available from sponsorship vehicles) and fuel capacity (including target pressures) to calculate power. Gasoline has more energy per mass volume than E85. So the higher fuel flow capacity will mathematically generate higher power potential for a gasoline than a high ethanol content fuel. The other variables (air flow, spark, rotating assembly strength, charge cooling, mechanical assembly strength) are highly variable from build to build. This is why we state horsepower capacity for the fuel system – representing the potential of the fuel system if you have all the other aspects of your build addressed!
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