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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]
Tri-Power was the name for an arrangement of three two-barrel carburetors [1] installed on large performance V8s offered by the Pontiac Division of General Motors in the late 1950s and 1960s. [ 2 ] Three individual Rochester 2G carburetors were arranged inline on the intake manifold, the center one operating normally and the outer two acting as ...
Optional equipment included a four-speed manual transmission, Super Turbine 300 two-speed automatic transmission, a more powerful engine with "Tri-Power" carburetion (three two-barrel Rochester 2G carburetors) rated at 348 bhp (260 kW), metallic drum brake linings, [8] limited-slip differential, heavy-duty cooling, ride, and handling package as ...
Quadrajet carburetors were also built under contract by Carter. This was due to the fact that Rochester could not keep up with the demand for carburetors at various points in their production. [citation needed] Carter-built Quadrajets will have the name "Carter" cast into them, but are functionally identical to the Rochester-built equivalent.
The first iteration of the 305, the LG3 was introduced in 1976. This variant used a Rochester 2GC carburetor from 1976 to 1978. In 1979, the more fuel-efficient Rochester Dual-Jet two-barrel carburetor replaced the older 2GC. This change also resulted in a drop in power to 130 hp (97 kW) and 125 hp (93 kW) for California emissions cars.
Rochester Ramject as seen on 1959 Chevrolet passenger car In the early 1950s, fuel injection was the topic of a significant amount of research by the auto industry in the US and internationally. Ed Cole , who had become the chief engineer of Chevrolet in 1952, pushed for Chevrolet to be the first GM brand to offer a fuel injection option on a ...
The Rochester four-barrel carburetor replaced both the standard GTO Carter AFB four-barrel and the Tri-Power carburetor option. The Turbo Hydromatic TH-400 replaced the previous Buick Super Turbine two speed automatic. The 326 cu in V8's remained unchanged. The four-barrel OHC six was uprated to 215 hp (160 kW; 218 PS).
The final Chrysler use of four-barrel Carter carburetors was the Thermo-Quad, which used a lightweight thermoplastic float bowl, on the most powerful Chrysler engines. [1] Carter produced Rochester Quadrajet carburetors for their rival maker whenever demand outpaced Rochester's ability to make them. They were identical to Rochester's units ...