Fuel System and Tuning

Fuel System

The following are all modifications made to the fuel system on the MM2000 which are completely different to the standard Morris Minor:

Aluminium alloy flat profile fast fill fuel filler (situated in boot) new in Aug-22
Facet Cylindrical Silver Top Road solid state rubber-mounted fuel pump on LHS in boot (new in Aug-22) accessed through hatch on LHS in boot floor
Fuel inertia safety cut-off switch fitted on extreme LHS in boot
Dashboard flashing amber LED alert of cutout activation in main instrument panel (new in Aug-22)
LED test button and cutout override switch on panel in boot accessed through hatch on LHS of boot floor

Fuel filler and access hatch in boot to fuel pump and inertia switch controls

Facet fuel pump and inertia switch locations

Inertia switch override switch and trip indicator LED test button

Inertia switch trip indicator LED position (orange lens)

See full explanation and diagram of inertia switch, test and override circuit

Custom fuel tank based on Volvo 340 fuel tank with Volvo sender (sender unit renewed Feb-22) - linearising network Fuel Tank Sender Linearisation Network installed
Malpassi King fuel pressure regulator (accessed through small circular hatch in boot floor, on LHS behind rear seat) new in Aug-22
All flexible fuel lines replaced Mar-22

Malpassi King fuel pressure regulator

Location of Malpassi King fuel pressure regulator in boot space

Malpassi King fuel pressure regulator access hole

Malpassi King fuel pressure regulator beneath small circular access hole

Twin Weber IDF 40 carbs
Competition inlet manifold
Tuned on rolling road Jul-24 at Northampton Motorsport and Airey Tuning
98 RON Super Unleaded fuel with Millers Oils VSPe Power Plus MultiShot (Ethanol / Lead / Octane) Fuel Treatment additive
134bhp power output at the flywheel measured on rolling road Jul-24

In June 2024, the car was transported in a covered transporter from Hampshire to Northampton (rain was likely)
A full day on the rolling road and a full strip down of the carbs and re-tune was accomplished
The rolling road is the only real way to set up Weber carbs and the power bands of the engine are monitored as the carbs are adjusted
The car is really put through its paces on the rolling road, taking the revs up to the red line (and hence off the end of the speedo!) on occasion - see video and pics below
A drive home in the dry was possible.

Northampton Motorsport 1.mp4

Shortly afterwards in July 2024, the car was driven to and from Airey Tuning in Hampshire for a further tweak on tuning
As per the Northampton Motorsport Experience, it was tuned on the rolling road and output power measured
Airey Tuning reported 134bhp at 5,800rpm with 98 RON Super Unleaded fuel with Millers Oils VSPe Power Plus MultiShot (Ethanol / Lead / Octane) Fuel Treatment additive

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