something other than........... Options

[karmanbuilt]

This topic has probably been asked before, but.........can MFI mechanical fuel injection throttle bodies be setup on the 14, instead of running EFI?? Saw PMOs MFI for the 911, soooo.............

[Katmanken]

Mechanical fuel injection (MFI) can indeed be used with the 914-4 but will have to be a custom mod to the engine. The MFi system can be found on some 911-6 engines.

The MFI systems do provide the advantages listed by the Krusty one, but the systems are $pendy and serviced by only a few.

MFI systems use a mechanical cam system that controls the amount of fuel squirted to each injector port. In essence, the electronic brain box is replaced by a mechanical pump and regulator system that controls the duration and amount of the fuel squirt to the injectors.

Here is a link to a site describing the fun to be had with a Bosch MFI system.
http://www.pelicanparts.com/techarticles/9...MFI.htm#Setting idle mixture & throttle body maintenance

The Krusty ones information is correct but some of the information given above is wrong. For example, there are no CIS injectors on a MFI system and somebody is confusing different systems. CIS stands for constant injection system and uses injectors designed to squirt constantly. MFI stands for MECHANICAL fuel injection and uses timed controlled squirts matched to engine requirements, not constant spraying. Alfa Romeo also used a similar MFI system called the Alfa Spica system on their 4 cylinder engines. My dad's 1967 Alfa Berlina had the Alfa Spica system.

[Derek Seymour]

Mechanical fuel injection (MFI) can indeed be used with the 914-4 but will have to be a custom mod to the engine.

mmmmm... do you know of a system out there (oem on another make/model or aftermarket) that could be adapted?