Description
N55 HPFP Flow Capacities
The table below serves as a reference for maximum fuel flow in cubic centimeters per camshaft revolution for various N55 fuel pump options. These calculations are based on the N55 cam lobe. Each engine will have varying fuel flow capacities depending on the lift and number of lobes on the camshaft.
| Pump Model | Fuel Flow (cc/rev) |
|---|---|
| HDP5 (Stock N55) | 0.837 |
| HDP5 Evo (Stock B58) | 0.897 |
| HDP6 (Stock B58TU) | 1.107 |
| Dorch Engineering Stage 1 | 1.221 |
| Dorch Engineering Stage 2 | 1.465 |
Software changes are required to run this pump. If using MHD or Bootmod3, simply check the box for our pump upgrade when flashing.. Otherwise, please send your .BIN file to [email protected] for the appropriate software changes. This change is free of charge for all of our customers.
Kit Contents:
- HPFP w/ Hardware
- High Pressure Line
- Low Pressure Line
- Low Pressure Line Bracket
- Plug-n-Play Adapter Harness
Kit Fitment:
F87 – M2
F20/21 – 135i, 135xi
F22/23 – 235i, 235xi
F30/31/34 – 335i, 335xi
F32/33/36 – 435i, 435xi
F10/11 – 535i, 535xi *
F25/26 – X3/X4 35i *
F15/16 – X5/X6 35i
E8X – 135i *
E9X – 335i *
E84 – X1 35i *
E70/71 – X5/X6 35i *
*ONLY 2013+ models with OE Bosch HPFP
KIT NOT COMPATIBLE with 2011-2012 N55 Vehicles
Installation Instructions:
