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Kugelfischer injection (also called ''System Kugelfischer'') is the name for a mechanical
fuel injection Fuel injection is the introduction of fuel in an internal combustion engine, most commonly automotive engines, by the means of an injector. This article focuses on fuel injection in reciprocating piston and Wankel rotary engines. All com ...
(MFI) pump. It was produced by FAG Kugelfischer and later by
Robert Bosch GmbH Robert Bosch GmbH (; ), commonly known as Bosch and stylized as BOSCH, is a German multinational engineering and technology company headquartered in Gerlingen, Germany. The company was founded by Robert Bosch in Stuttgart in 1886. Bosc ...
Derived from diesel pumps from the early 1960s, the Kugelfischer system was a mechanical injection pump for performance vehicles. It was among the first units with manufacturer-customizable fuel delivery maps which used rpm, throttle position, temperature, and sometimes barometric pressure as inputs. This was accomplished mechanically, not electronically, using cones (irregularly shaped, two-dimensional cams) to encode the maps. In the late 1960s and early 1970s, it was fitted to a variety of production vehicles from BMW, Ford UK,
Lancia Lancia () is an Italian car manufacturer and a subsidiary of FCA Italy S.p.A., which is currently a Stellantis division. The present legal entity of Lancia was formed in January 2007 when its corporate parent reorganised its businesses, but it ...
, Peugeot - 404 and 504 between 1961 and 1983, and others. It is perhaps best known for its use by BMW in the 2000tii/ 2002tii (and later, the 2002 Turbo) from 1970 to 1975, the 1964–1976
Porsche Dr. Ing. h.c. F. Porsche AG, usually shortened to Porsche (; see below), is a German automobile manufacturer specializing in high-performance sports cars, SUVs and sedans, headquartered in Stuttgart, Baden-Württemberg, Germany. The company ...
911/911S/Carrera RS/RSR/Carrera MFI, and the BMW M1 supercar from 1978 to 1981. Due to high manufacturing cost however, it became economically undesirable with the introduction of cheaper electronic engine management systems (and continuous-injection mechanical systems) by the end of the decade. However, the Kugelfischer system continued to be used as a specialty injection pump for purpose-built race engines into the 1980s such as the 1982 Porsche 911 SC/RS.


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{{reflist Fuel injection systems