- 1,295
- Nuvolari91
I know that I'm going to hear plenty of nasty comments, but I really like these!
Think of it as an American AE86, built a decade earlier.
DOHC in an American car was unheard of in the 1970s.
"The Cosworth engine was a technically impressive piece. Its stroke had been reduced to 3.16 in (80 mm), dropping displacement to 122 cu. in. (1,995 cc), but making it both notably smoother and more eager to rev than its more mundane parent; at 305 lb (138 kg) complete, it was also about 40 lb (18 kg) lighter. Its aluminum head had dual overhead camshafts, four valves per cylinder (with about 50% more valve area than the standard Vega engine), and Bendix electronic fuel injection.
Despite all that, it was not very powerful. At its introduction, Chevy initially claimed 120 hp (90 kW), but that was hastily revised to 111, and finally 110 horsepower (82 kW) at 5,600 rpm. (On paper, the Z09 Cosworth sounded no more powerful than the carbureted L11 engine of 1971, but the latter's 110 hp was an SAE gross rating; by 1975, the L11 was rated a more realistic 87 hp (65 kW).) The Cosworth's 110 hp was not bad -- in fact, it was almost spot on the similarly sized engine in the BMW 320i, which appeared the following year -- but it was not the junior Supercar Chevy had been promising."
- http://ateupwithmotor.com/compact-and-economy-cars/195-chevrolet-vega-cosworth.html
Think of it as an American AE86, built a decade earlier.
DOHC in an American car was unheard of in the 1970s.
"The Cosworth engine was a technically impressive piece. Its stroke had been reduced to 3.16 in (80 mm), dropping displacement to 122 cu. in. (1,995 cc), but making it both notably smoother and more eager to rev than its more mundane parent; at 305 lb (138 kg) complete, it was also about 40 lb (18 kg) lighter. Its aluminum head had dual overhead camshafts, four valves per cylinder (with about 50% more valve area than the standard Vega engine), and Bendix electronic fuel injection.
Despite all that, it was not very powerful. At its introduction, Chevy initially claimed 120 hp (90 kW), but that was hastily revised to 111, and finally 110 horsepower (82 kW) at 5,600 rpm. (On paper, the Z09 Cosworth sounded no more powerful than the carbureted L11 engine of 1971, but the latter's 110 hp was an SAE gross rating; by 1975, the L11 was rated a more realistic 87 hp (65 kW).) The Cosworth's 110 hp was not bad -- in fact, it was almost spot on the similarly sized engine in the BMW 320i, which appeared the following year -- but it was not the junior Supercar Chevy had been promising."
- http://ateupwithmotor.com/compact-and-economy-cars/195-chevrolet-vega-cosworth.html
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