How does a mechanical fuel injection system work?
Mechanical fuel injection works with a simple throttle-controlled air valve and a fuel pump, usually running at one-half engine speed. After pulling fuel from a vented fuel tank, the fuel is delivered through a barrel valve that controls the amount of fuel with the position of the air valve.
What is Spica in Alfa Romeo?
Spica was a mechanical fuel injection system used by an Alfa Romeo originally on trucks then adapted for use on USA destined automobiles in 1969 and then from 1971 to 1981.
What are the 2 basic types of fuel injection systems?
FAQs on Types of Fuel Injection Systems The basic types of fuel injection systems are single-point fuel injection, multi-point fuel injection, sequential fuel injection, and direct injection.
What is the fuel source for Spica?
The fuel supply system for the SPICA (say “speek-a”) injection system is a medium pressure (10-20 psi) closed loop recirculating system. See Appendix 8 for schematics of the fuel system.
Can you run mechanical fuel injection on the street?
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 does Spica fuel injection work?
The pump itself has four pistons, which are attached by connecting rods to a crankshaft that runs at half engine speed. The works are lubricated by engine oil, drawn off the main gallery. A toothed rack that slides back and forth inside the pump rotates the pistons, thus metering fuel delivery.
Is Spica visible to the naked eye?
It is visible not only because of its size, but also because of its relatively close distance: it is about 260 light-years away from Earth. While the star appears as a single point of light to the naked eye, Spica is a binary system. One star, however, is much brighter than the other one.
Is Spica a white dwarf?
Its core will become a white dwarf. It’ll be roughly as massive as the Sun, but a little bigger than Earth — many times larger than a neutron star. Neither star is near its end, though, so Spica should continue to shine brightly for a long time to come.
Is Hilborn still in business?
Hilborn is gone, now and so are the fleeting memories of visiting that shop whenever we drove by the busy roadway.
When did Alfa Romeo start using fuel injection engines?
So, when the U.S. government required automakers to reduce emissions at the tail end of the 1960s, Alfa responded by going down the hall to the workshops of its racing arm, Autodelta, and borrowing the fuel-injection system developed for its sports racing prototype, the Type 33.
Why did Alfa Romeo stop using carbureted engines?
Like a lot of carmakers, Alfa Romeo arrived at fuel injection reluctantly, as a way to maintain performance while minimizing emissions. According to legend, carbureted Alfas failed the EPA’s sniff test for 1968, so the marque went away for a year.
Why don’t more Alfa Romeo cars have Spica injections?
Also because SPICA injection—found on every U.S.-market Alfa from 1969 to 1981—is widely maligned. And thus a good way to illustrate the tech’s darkness and light. Like a lot of carmakers, Alfa Romeo arrived at fuel injection reluctantly, as a way to maintain performance while minimizing emissions.
Who is the owner of the Alfa Romeo Pump Company?
Wes Ingram and his business partner, Herb Sanborn, collaborate on rebuilding and modifying mechanical injection pumps for vintage Alfa Romeos. Ingram has been doing it since the Eighties, when, he says, “the cars were still driven every day.”