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Standard only for the Pontiac Bonneville was Pontiac's first-ever fuel injection system. A mechanical system built by Rochester, it was similar in principle, but not identical, to a contemporary system offered as an option on the Chevrolet Corvette. Pontiac did not release official power ratings for this engine, saying only that it had more ...
Only about 400 were produced before the fuel injection system was quietly dropped and fuel injection would not be offered on the Bonneville until 1987 with the Eighth Generation. For 1958, GM was promoting their fiftieth year of production, and introduced Anniversary models for each brand; Cadillac, Buick, Oldsmobile, Pontiac, and Chevrolet. [ 8 ]
They featured Bonneville Badging, Chevy's manual linkage fuel injection systems mounted on Pontiacs 347 cid V-8 engine. The transmission was a Jetaway 4 speed automatic. In 1958, the Bonneville was first given its own position in the Pontiac lineup as the ultimate Pontiac, and was only available as a two-door hardtop and two-door convertible ...
The Ramjet is a continuous-flow port-injection system. Unlike later fuel injection systems that used electronics, this one is based on purely mechanical principles. The two main sub-assemblies of the system are the air meter and the fuel meter. The air meter measures airflow into the engine and manages thermostatic warmup enrichment, fuel ...
The Electrojector is an electronically controlled multi-point injection system that has an analogue engine control unit, the so-called "modulator" that uses the intake manifold vacuum and the engine speed for metering the right amount of fuel. The fuel is injected intermittently, and with a constant pressure of 1.4 kp/cm 2 (20 psi; 137 kPa ...
Pontiac imported the Canadian market Pontiac Parisienne, which featured the Bonneville's deluxe trim. This car, although a Pontiac in name, was no more than a slightly re-trimmed Caprice . The Parisienne sold in profitable numbers and this car continued in production until 1986 for the sedan, and 1989 for the Safari station wagon.
GM's Pontiac Division introduced the Pontiac Bonneville as a convertible only, offering fuel injection and a similar price tag but offered lower luxury content and a reduced price for 1958, [6] and Mercury offered the Mercury Turnpike Cruiser for 1957 with the optional 430 cu in (7.0 L) Super Marauder V8.
In 1957 Chevrolet introduced their first fuel-injected engine, [12] the Rochester Ramjet high-performance option on Corvette and passenger cars at $484. [13] In 1956 Oldsmobile were also experimenting with Rochester fuel injection, at the GM desert proving grounds near Phoenix, but offered the Rochester triple-carburetor J2 option for 1957. [14]