Dorch Engineering Stage 1 High Pressure Fuel Pump – BMW N55 (F Series)

£1,216.24

Dorch Engineering Stage 1 High Pressure Fuel Pump – BMW N55 (F Series)

This is a complete plug-and-play kit to support up to 550whp (this number can vary quite a bit depending on tuning strategy and the blend of ethanol). There’s no cutting, no bending, no crimping, etc. This kit drops right in with full control from the DME, just like the OEM pump. All of the safety and sophistication of the stock DME remain in place.

 

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 stock N55 cam lobe unless otherwise noted (Lift Kit).

Pump Model Fuel Flow (cc/rev) Fuel Flow w/ Dorch Lift Kit (cc/rev)
HDP5 (Stock N55) 0.837 NOT COMPATIBLE
HDP5 Evo (Stock B58) 0.897 NOT COMPATIBLE
HDP6 (Stock B58TU) 1.107 NOT COMPATIBLE
Dorch Engineering Stage 1 1.221 1.818
Dorch Engineering Stage 2 1.465 2.181

NOTE: When combined with our N55 Lift Kit, this pump is capable of 750whp on E10 and 600whp on E85!

 

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 tuning@dorchengineering.com 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:

N55_HPFP_Kit_Installation

Additional information

Weight 5 kg

Brand

Dorch

Make Model Year Engine
Make Model Year Engine
BMW 1 Series F2X Series (2011 - 2019) M135i N55 (325-322ps)
BMW 2 Series F2X Series (2014 - 2019) M235i N55 (326ps)
BMW 3 Series F Series (2011 - 2018) 335i N55 (300ps)
BMW 4 Series F Series (2014 - 2019) 435i N55 (300ps)
BMW M2 F87 (2016 - 2022) 3.0T N55 (370ps)