What is MFI pump?
Tuthill Porsche recondition Bosch Mechanical Fuel Pumps. Mechanical Fuel Injection (MFI) was initially perfected as military technology, to solve the problem of fuel starvation on carburettor-fuelled military aircraft capable of pulling high G-forces in flight.
When did Porsche start using fuel injection?
But it remained a very compact car. Mechanical fuel injection was introduced in 1969, became standard in 1974 and gave way to Bosch digital engine management in 1984.
How does Hilborn fuel injection work?
Hilborn’s fuel pump has an inlet and an outlet side. On the outlet side there are three ports. One feeds the injectors; the other two are available to bleed off (or return) excess fuel to the tank. All systems use the second outlet, called the primary return or main bypass.
Is mechanical fuel injection Streetable?
Mechanical Fuel Injection Is Not Just for Race Cars Anymore Great horsepower or horrible driveability, your only options. Since its ’40s conception, mechanical fuel injection (MFI) was strictly reserved for race cars. Street cars need not apply.
How much horsepower does a 1987 Porsche 911 have?
Seen in the context of modern turbocharged cars, the spec sheet of this 1987 911 Turbo doesn’t read like anything special. Its 300 hp and 303 lb-ft are handily outdone by a base Boxster, and a 0-100 km/h time of around six seconds would be matched by many less-expensive cars these days.
What is the difference between K-Jetronic and KE-Jetronic?
As can be inferred, the essential difference between K-Jetronic i KE-Jetronic The system has an encoder and a control unit that processes the data received from the encoder. In the latter case, the fuel manifold also has the aforementioned electro-hydraulic pressure regulator.
What cars use Bosch K-Jetronic?
K-Jetronic debuted in the 1973.5 Porsche 911T in January 1973, and was later installed into a number of Porsche, Volkswagen, Audi, BMW, Mercedes-Benz, Rolls-Royce, Bentley, Lotus, Ferrari, Peugeot, Nissan, Renault, Volvo, Saab, TVR and Ford automobiles.
What is MFI vs EFI?
MFI = multi-port fuel injection (a separate fuel injector for each cylinder); EFI = electronic fuel injection (injectors controlled by microprocessor, electrically rather than mechanically activated).
How do I tune my MFI?
To adjust the idle mixture of the MFI system, you will need to turn the small adjustment screw that is located on the back of the pump. You must use a special long tool to reach through the blades of the cooling fan, in order to turn the adjustment screw.
What is MFI engine?
Most modern vehicles have multi-port fuel injection (MFI) with a separate fuel injector for each cylinder. This system mixes the fuel and air together right in the intake port for eachengine cylinder just ahead of the intake valve.
Why is the Porsche flat 6 so good?
The air-cooled flat engine is lightweight and flat, making it the ideal choice for sports cars, and particularly low designs are possible as the cylinders are lying flat. This lowers the centre of gravity, allowing for a sportier and more dynamic style of driving – and not just when cornering.
How long do Porsche 911 last?
They are built to perform, yes, but they are built to perform for many years. Porsche 911 engine mileage can be rated at 100,000 miles and 10 years. Like any vehicle, Porsche 911s last longer with proper and routine maintenance and care. Most Porsche vehicles will last you up to the 150,000-mile marker and beyond.