Chevrolet Cars, Trucks
Your Favorite Chevy
Posted Chevy Cars on Wednesday, August 1st, 2007.
The front grille is larger, and an additional small scoop in front of the hood gulps cool intake air. Barely visible from a distance, 1-centimeter-wide black strips follow the wheel arches, oriented at a right angle to the fender. The carbon fiber front fenders are flared to accommodate 275/35ZR18 tires and the rear quarter panels are widened 1.5 inches to clear massive 325/30ZR19s. It has a 427.6-cubic-inch small-block LS7 engine, good for 500 horsepower at 6200 rpm and 475 pound-feet of torque at 4800 rpm. Titanium connecting rods, intake valves, and valve springs permit 7000-rpm revving, for this, the ultimate small-block.
An all-new LS7 7.0-liter V-8 (the displacement works out to 427 cubic inches) is said to churn out 500 horsepower. It will also be fitted with wider tires and larger Brembo brakes. Body modifications include a high-rise hood, deep side skirts and cooling ducts ahead of the rear wheels.
The engine is an aluminum block designed for stiffness and a special camshaft design for better engine breathing. The aluminum block, cylinder heads, camshaft and induction systems are revised for better breathing at a high rpm. A positive crankcase ventilation system improves oil control during racetrack and acceleration maneuvers, a Z06 titanium exhaust system, mufflers and tailpipes have less mass and more strength than its aluminum or magnesium counterparts. Producing 405-horsepower at 6000 rpm and capable of zero-to-60 in less than four seconds.
The car’s larger-displacement engine and light weight are claimed to deliver 0-to-60-mph acceleration times of less than 4 seconds, a 12-second quarter-mile and a top speed of more than 190 mph on the track. Just as the base engine grew to 6.0 liters and became the LS2, the Z06 power plant has grown to 7.0 liters and becomes the LS7 V-8. It’s rated for 500 hp at 6,200 rpm and 475 pounds-feet of torque at 4,800 rpm
Red brake calipers employ six pistons apiece up front, four pistons per side in the rear and 20 individual brake pads, which Chevrolet says deliver more even wear. The ventilated, cross-drilled brake rotors measure 14 inches in front and 13.4 inches in the rear. ABS is standard.
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Posted Chevy Cars on Wednesday, August 1st, 2007.
What’s new for GM Racing? Well, aside from manufacturing auto parts like GM tail light guards for their race cars, GM also got something new for the motor sports industry. The 2007 season of the NASCAR Nextel Cup Series is an important event for GM Racing team for them to unveil a brand new racing machine and an all-new engine. GM will make the NASCAR debut of the Chevrolet Impala SS “Car of Tomorrow” along with R07 small-block V-8 racing engine. Along with the debut of the Chevrolet Impala SS, GM also announced their latest development in testing vehicle aerodynamics called the Computational Fluid Dynamics (CFD) that will be implemented in all GM race cars.
Here is how Kevin Bayless, GM Racing oval track chassis/aero Program Manager explains how the CFD works:
“The best way to describe CFD is a wind tunnel in a computer. CFD is a simulation that predicts the aerodynamic forces acting on a vehicle using computational methods rather than physical measurements. CFD allows engineers and racing teams to evaluate the effects of aerodynamic changes quickly on a computer screen rather than in a conventional wind tunnel.
The CFD software requires a supercomputer because the number of calculations is immense. For example, our aerodynamic models typically have more than 10 million discrete data points that are used to calculate the forces. It really is rocket science.”
GM Racing will first implement the CFD aerodynamic simulation system to the next-generation Chevrolet Impala SS that will debut in NASCAR Nextel Cup Series. GM said engineers utilized the CFD to gain insight into the effects of the new body shape, front splitter, and adjustable rear wing of the Impala SS. However, GM said although CFD is a powerful engineering tool for testing vehicle aerodynamics, it is not a replacement for the typical wind tunnel and track testing.
Bayless commented: “Although the Car of Tomorrow is highly regulated, it’s not a spec race car. As a manufacturer, Chevrolet was able to define many of the details that separate the Impala SS from our competitors’ cars. The headlights, grille, portions of the hood, and the tail were areas where GM Racing was able to incorporate Impala SS styling cues and brand identity. These areas are now fixed as part of the NASCAR Impala SS package.”
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Posted Chevy Cars on Wednesday, August 1st, 2007.
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Posted Chevy Cars on Wednesday, August 1st, 2007.
For 1958, General Motors and Chevrolet redesigned a car that was broader, lower, longer, and heavier than their 1955, 1956 and 1957 predecessors. The 1955, 1956 and 1957 Chevy’s were described as the “Hot Ones.” Chevrolet advertising described the 1958 Chevy as a “A Whole New Look!” All models had a fresh look and a pleasing design especially in the 1958 Chevrolet Bel Air series.
There were 6 new Bel Air’s. (1) Bel Air Sport Coupe two door hard top, (2) Bel Air Sport Sedan four door hard top, (3) Bel Air two door Sedan and the (4) Bel Air four door Sedan. Plus the 1958 (5) Bel Air Impala Convertible and (6) Bel Air Impala Sport Couple which are covered in another Ezine Article.
The Bel Air Sport Coupe two door hard top and Bel Air Sport Sedan four door hard top, were in some ways closely related to the more costly Bel Air Impala. Exterior trim and interior trim packages were luxurious but slightly different. However, they were still beautiful cars and part of Chevy’s top line up. In fact they were the focal point of Chevrolet’s popularity and could be equipped with almost any accessories available for 1958.
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Posted Chevy Cars on Wednesday, August 1st, 2007.
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Posted Chevy Cars on Wednesday, August 1st, 2007.
General Motors
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