Location: Sacramento-ish
Posts: 4,408
My VIN: 02100
Club(s): (NCDMC) (DCUK)
Jon
1981 DMC-12 #02100. July 1981. 5-speed, black, grooved w/flap.
restoration log, March 2011 to present
full and detailed photo restoration log
Do ya think ... check the engine compartment of this 89!
89 Countach Dual K-jet.jpg
A Google for Countach engine will get other variations with the Bosh CIS system. All appear to be a plumbing nightmare and a tight engine compartment. Read up on the engine some time. It is a real strange configuration (including the drive shaft going through the block if I recall correctly).
Lamborghini Countaches were equipped with 6x Weber carburetors up to the 5000QV. That was when it switched to Bosch CIS K-Jet for cars sold in the US. Europe stuck with the 6x Webers
Location: Sacramento-ish
Posts: 4,408
My VIN: 02100
Club(s): (NCDMC) (DCUK)
Jon
1981 DMC-12 #02100. July 1981. 5-speed, black, grooved w/flap.
restoration log, March 2011 to present
full and detailed photo restoration log
Location: San Francisco Bay Area, Calif.
Posts: 2,079
My VIN: 0934
Club(s): (NCDMC) (DCUK)
A 21-year run on literally millions of cars tells us that the DeLorean was equipped with a world-class fuel management system - from the '70s and '80s, that is. Almost all of the European OEMs used it. Successfully, it seems.
Here's the K-Jet section from the wiki entry for Jetronic, Bosch's brand name which covers several generations:
http://en.wikipedia.org/wiki/Jetronic
K-Jetronic (1973–1994)
Mechanical fuel injection. The 'K' stands for German: "Kontinuierlich", meaning continuous. This is different from pulsed injection systems, in that the fuel flows continuously from all injectors, while the fuel pump pressurises the fuel up to approximately 5 bar (72.5 psi). The air that is taken in is also weighed - to determine the amount of fuel to inject. Commonly called 'Continuous Injection System' (CIS) in the USA. This system has no lambda loop or lambda control. 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, Renault, Volvo, Saab, DeLorean and Ford automobiles. The final car to use K-Jetronic was the 1994 Porsche 911 Turbo 3.6.
Gasoline is pumped from the fuel tank to a large control valve called a fuel distributor, which separates the single fuel supply pipe from the tank into smaller pipes, one for each injector. The fuel distributor is mounted atop a control vane through which all intake air must pass, and the system works by varying fuel volume supplied to the injectors based on the angle of the air vane, which in turn is determined by the volume flowrate of air past the vane, and by the control pressure. The control pressure is regulated with a mechanical device called the control pressure regulator (CPR) or the warm-up regulator (WUR). Depending on the model, the CPR may be used to compensate for altitude, full load, and/or a cold engine. On cars equipped with an oxygen sensor, the fuel mixture is adjusted by a device called the frequency valve. The injectors are simple spring-loaded check valves with nozzles; once fuel system pressure becomes high enough to overcome the counterspring, the injectors begin spraying.