Description
VIS Motorsport High Pressure Fuel Pump Upgrade Kit B9 EA839 – VISEA839V6
Upgrading B9 EA839 S4 / S5 / RS4 / RS5 / SQ5 and other engines with the same high-pressure fuel pump (HPFP) beyond their original power levels necessitates an increased volume of high-pressure fuel to prevent “fuel cuts”, particularly in the mid-range (3000-5000 rpm). In many instances, we observe a decline in pressure from the factory-installed fuel pump.
The capacity of the high-pressure fuel pump to deliver fuel is contingent upon the volume displaced by the pressurising cylinder within the pump.
To address this fuel shortage and ever-increasing power outputs, VIS Motorsport developed the 2.0T MQB HPFP Upgrade Kit to suit various build requirements. We are the first company to design and offer a larger stage/size kit that is both lighter than the original equipment manufacturer (OEM) by 2 grams and available to customers worldwide.
The upgrade kit features a 25% larger surface area and can handle over 250 bar+ of pressure from the outset, culminating in over 50% more volume and weighing 10% less compared to the original equipment (fuel pressure depends on the specific engine type, as it fits numerous applications and engines). This high-performance kit is suitable for both big turbo applications and stock power.
The piston head is optimised for ideal hydrodynamic flow, with a surface that has been hardened and heat-treated in two separate stages.
The VIS Motorsport HPFP Upgrade Kit has been tested on a variety of configurations and hardware/software setups worldwide, consistently demonstrating its reliability and performance.
*Includes fitting tool
Technical Information
- Clearance at top of piston 0.0001-0.00015
- Deviation of circularity max 0.001mm
- 370-450hb before rectification
- Nitrided at depth of 0.15-0.25
- Hardness of hv10-760- kgf/mm2 for sleeve and hv 50-56/1200-1400kgf/mm2 for piston
- Nitrided H13 alloy/ 34mocr11 /rul 1vb3/ rul1vc2
- Good thermal and shock resistance or heat cracking
- Mechanical characteristics and thoghness in hot condition,constant hardness throughout the production cycle
- High micro purity-level suitable for polishing
- Posibility to be coated to pvd/pa cvd methods flame induction hardening and nitriding
- Tensile strenght 1960kgf/mm2
- Yeld strenght 1570kgf/mm2
Reviews
There are no reviews yet.