SCCA speed world challenge grand touring class: Cadillac's CTS-V livens up what was already the best road racing in the country

Article Abstract:

Sports Car Club of America's Speed World Challenge, a professional road-racing series organized a race which had four powerful GT cars, a Viper, A Corvette, an RS6 and a CTS-V at 1.9 mile Ginger-man raceway in South Haven, Michigan. After winning the first round of the race CTS-Vs were saddled with 200 pounds weight, that reduced their speed, and they came third and fourth in the second round which means that they ca not have more than 49 percent of its weight over the rear axle.

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Roock RST 650: A former racing shop delivers a devilishly quick Porsche 911 Turbo

Article Abstract:

Roock RST 650, priced at $207,355, is a 4-wheel-drive, 2-passenger, 2-door coupe. With twin-turbocharged and inter-cooled DOHC 24-valve flat-6 engine, aluminum block and heads, port fuel injection, the Porsche 911 Turbo, the Roock RST 650 is a devilishly quick car.

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Technical secrets of an F1 engine-learned in Toledo!

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The basics of Formula 1 engine, which make it incredible, are discussed. The engine revives 19,000 rpm, has a horsepower of 900 and the bore is about 3.80 inches.

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