Why Use an MPi Tank?
Welcome back to our DIY Mini Restoration series!
When it comes to upgrading your Mini's fuel system, an MPi tank can be a game-changer. Let's dive into the details of installing one in the Bogus 2 Mini restoration project!
Fuel System Installation: Bogus 2
Preparing the Tank
Stripping and Inspection
Our Rover injection fuel tank underwent a thorough stripping process to remove the old cellulose paint. This provided the perfect opportunity to inspect for any signs of corrosion. If you require a replacement tank, why not upgrade your Mini's fuel system with our high-quality classic Mini Fuel tanks. Shop the Range >
Fuel Pump Selection
We've opted for the standard immersed fuel pump and filter combination. While SPi and MPi pumps differ, we've found that the MPi pump works seamlessly in both types of Minis. The fuel delivery pressure of approximately 3-bar is ideal for our Canems/Jenvey/Weber Pico injection system.
Keep your Mini running smoothly with a reliable fuel pump from Mini Sport - Discover the selection >
Routing the Fuel Lines
Similar to the brake hoses, the fuel line requires careful routing through the bulkhead. We've utilised 90-degree adapters in the front bulkhead box section, traditionally used for internal heater water pipes. These adapters fit perfectly on plates covering the left-hand drive car pedal box.
Important: Seal both ends of the fuel hoses during installation to prevent contaminants from entering the delicate injection system.
Connecting the Hoses
With the SPi tank in place, we've connected the Goodridge fuel hose. The output from the fuel pump is clearly marked with a small orange band. While most connections use Goodridge threaded fittings, the tank and fuel pressure regulator connections require disguised Jubilee clips.
Securing the Fuel Hose
To prevent damage and ensure proper routing, we've used P-clips on the fan shroud/top radiator bracket to support the fuel hose from the bulkhead to the fuel rail. The front P-clip is inverted for optimal fit. To safeguard the top coolant hose from the coarse steel braiding, we've spiral-wrapped the hose. The return hose to the tank will be installed alongside the feed hose.
Fuel Pressure Regulator
As our Bogus 2 Mini is equipped with injection, a fuel pressure regulator is essential. We've mounted ours to the offside inner wing. The regulator is positioned in the return hose to control upstream pressure. Our adjustable regulator includes a vacuum takeoff, which isn't necessary for this setup. Shop our range of high quality pressure regulators >
Leak Testing and Adjustments
As with the brake system, thorough leak testing is crucial. We discovered a minor leak at the pressure regulator connection, easily resolved by tightening the fuel line. Checking the fuel pressure is vital as it directly impacts injector performance.
Experiencing a fuel leak? Our expert mechanics can diagnose and repair fuel system issues efficiently. Get in touch to book your Mini in for a check-up today >
Need Mechanical Help?
The Mini Sport team are ready to help you, no job is too big or too small. Get in touch today to book your appointment!
Explore Our Range of Products
From tanks to pumps and everything in between, we've got your Mini's fuel system covered. Discover high-quality components to enhance your vehicle's performance and reliability.
Want to read Keeping Your Mini Alive 6th Edition Magazine? Download the PDF here
Don't miss out on the rest of the Bogus 2 Series!
This blog series is your go to for a guide to taking your Mini from a bare shell to a road-worthy classic. Check out the rest of the series for tips and advice from our Mini Experts for every stage of your Mini restoration!
This guide is provides general guidance and a step-by-step approach to build your Mini's build. It is always recommended to contact a trusted professional if you are unsure about any part of the process.