Dorch B58 Stage 2 HPFP Upgrade

Dorch B58 Stage 2 HPFP UpgradeSoftware changes are required to run this pump. The table below serves as a reference for maximum fuel flow in cubic centimeters per camshaft revolution for various B58 fuel pump options. These calculations are based on the B58 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 Evo (Stock B58) . 954 HDP6 (Stock B58TU) 1. 178 Dorch Engineering Stage

we've engineered an additional billet aluminium capture plate that securely houses the whole head of the crank bolt

178 Dorch Engineering Stage 1 1

3' E90   (03/2006 — 09/2008)

The OE units friction plate are known to slip

Left/Right

After much research and testing we discovered that the synchronisation of the turbos was the main factor in the sound

Bracketry and hardware to prevent rattling under engine torquing

The Alpha Competition decat downpipes made from mandrel bent and TIG hand welded T304 stainless steel are a direct bolt on upgrade for the great S55 engines found in the M2C

Clearances with the engine cover and other aftermarket intake systems can be an issue

Simply unplug and unbolt your OEM Blow-Off Valve

What do we mean

We advise you to add it to your order