Chevrolet Corvette C6 ZR1

The Chevrolet Corvette C6 ZR1 is a high performance version of the Chevrolet Corvette C6. Both the C3 from 1969–1971 and C4 Corvettes from 1990-1995 had ZR-1 models. However, the C6 variant is officially labeled as the "ZR1" while previous variants had a hyphen between the ZR and 1, as in "ZR-1".

Engine design

The Corvette ZR1 engine is a heavily modified version of the LS3, designated the LS9. Producing 638 hp (476 kW; 647 PS) and 604 ft·lbf (819 N·m) of torque, it is the most powerful production Corvette to date. The LS9 has a sixth-generation Eaton TVS R2300 roots 4-lobe supercharger with intercoolers from Behr, utilizing an air-to-water, dual-brick design. The supercharger's four-lobe design offers improved efficiency over three-lobe models. To avoid changes to the hood appearance, the supercharger's output was split into two halves. Each cylinder bank has an intercooler.

The cylinder walls of the LS3 are thicker than the Z06's LS7 since the LS3 has a smaller bore. Oil squirters under each piston help cool the pistons and cylinder walls are used for the first time in a production Corvette. Connecting rods and the inlet valve are made of titanium. Heads are made from a special heat resistant aluminum alloy. The camshaft lift was reduced from the LS7's to improve idle quality. With the addition of the supercharger to the 6.2 liter LS9, the higher lift camshaft was no longer necessary to achieve horsepower targets.

Lubrication is provided by an improved version of the LS7's dry sump system. The new system increases oil capacity from 8.0 to 10.5 quarts (9.94 liters). A new dual gerotor oil pump increases scavenge performance and oil pressure, enabling oil to be delivered under the most extreme conditions. Due to the increased pressure, the Ultraguard Gold UPF48R oil filter is required. The LS7 oilpan is used for the LS9 with the addition of an oil cooler which is mounted on the left side of the pan.
With the 2011 model, GM offers the optional "Corvette Engine Build Experience," where the customer visits the General Motors’ Performance Build Center to help assemble the LS9 for the ZR1 purchased. Factory technicians supervise the process and the normal warranty covers the engine built by the customer's hands.^[1]

Transmission

The ZR1 flywheel has been improved over the 2008 Z06. The flywheel was upgraded by going from six to a nine bolt design and cutting off nearly 9.8 ounces (278 grams) for improved throttle response and acceleration.
The transmission is a 6-speed manual Tremec TR6060 with a MH3 gearset. The 2008 Z06 featured the MM6 gearset. Top speed is achieved in 6th gear.^[2]

Differential/drive

The differential is a limited slip with carbon and steel plates. The differential uses SAE 5W-80 Dexron LS lubricant.
The two half shafts have different diameters (33mm left, 40mm right), designed to prevent resonance during acceleration and reduce the chances of wheel hop occurring.

Production

Production vehicles are hand assembled in Bowling Green, Kentucky. The ZR1 engines are built at the General Motor Performance Build Center in Wixom, Michigan.

Ride control

The name of the ride control system is Magnetic Selective Ride Control (MSRC). MSRC is provided by Delphi Automotive Systems from technology invented by the GM Research Laboratories. The system uses two modes of control: Tour and Sport.
The system offers standing start launch modifications. When launching the ZR1 from a standing start, the shocks are completely softened on launch and stiffened on rebound. The softened shocks on launch aid the ZR1 by allowing weight to transfer to the rear, aiding traction. The ride control standing launch modifications are designed to minimize bounce.

Suspension

The ZR1 features a double-wishbone suspension system and Magnetic Selective Ride Control—which adjusts shock-absorber damping in real time to either "Tour" or "Sport" mode.^[3]

The MSRC shocks are automatically adjusted based on driving conditions and vehicle dynamics (cornering, braking, etc) for optimal handling. The system is adjusted every millisecond to provide sharp handling during spirited driving, and a smooth ride while cruising.

^[4]
The new high-end magnetic suspension system enables the ZR1 to deliver great handling and grip to achieve 1.10 g of average lateral acceleration.

The chassis, similar to the 2008 Z06, is made of aluminum. To cut weight, many panels are made of carbon fiber. Panels made of carbon fiber are the fenders, hood, roof, splitter, and rocker extensions. To prevent the sun from damaging the binder in the exposed carbon fiber composite body panels, panels are protected with a clear-coating.^[6]
The rear wheels are the largest ever mounted on a production Corvette with 335/25 Michelin Pilot Sport PS2 tires on 20 in (510 mm) wheels.
The official curb weight of the 2009 ZR1 was released to be 3,352 lb (1,520 kg).

Clutch

The 260 mm (10 in) ZF-Sachs twin-plate clutch supplants Z06's 290 mm (11 in) single-plate unit to reduce inertia for better shift feel. The lower clamping force reduces clutch-pedal effort. The clutch upgrade is considered a dramatic improvement over the unit employed within the Z06.

Brakes

The front brake rotors are similar carbon ceramic design as those employed in the Ferrari FXX track car, the difference being a diameter reduction from 15.75 in (400 mm) to 15.5 in (390 mm) for added wheel clearance. The front calipers are Brembo 6-piston units.
Rear calipers are Brembo 4-piston units. The rear brakes are 15 in (380 mm) carbon ceramic rotors, originally employed as the Enzo Ferrari's front rotors. Same as those used in the BMW M3 GTS.
Both front and rear pads have twice the contact area of the Z06's, as well as the addition of brake pad wear sensors. The brake master cylinder, booster, ABS unit and system controller are now sourced from Bosch in place of Delphi.
As a result, the ZR1 will stop from 60 mph (97 km/h) in a current production car record breaking 96 feet (29.3 m).

Ignition

Coil packs are identical to those used on the LS3. The coil packs are mounted on the valve covers.

Fuel system

A unique fuel pressure regulator varies pressure between 36.3 psi (250 kPa) and 87.0 psi (600 kPa) depending on rpm.

Chevrolet Corvette second generation

This in my opinion is must be in top ten most beautiful cars ever made.The Chevrolet Corvette is a sports car by the Chevrolet division of General Motors that has been produced in six generations. The first model, a convertible, was designed by Harley Earl and introduced at the GM Motorama in 1953 as a concept show car. Myron Scott is credited for naming the car after the type of small, maneuverable warship called corvette.^[1] Originally built in Flint, Michigan and St. Louis, Missouri, the Corvette is currently built in Bowling Green, Kentucky and is the official sports car of the Commonwealth of Kentucky. The National Corvette Museum documents the car's worldwide history and hosts the annual event.

Second generation-C2 (1963–1967)he second generation Corvette referred to as mid-years was designed by Larry Shinoda with major inspiration from a previous concept design called the "Q Corvette" by Peter Brock and Chuck Pohlmann under the styling direction of Bill Mitchell. The design had several inspirations. The first was the contemporary Jaguar E-Type, one of which Bill Mitchell owned and enjoyed driving frequently. Mitchell also sponsored a car known as the "Mitchell Sting Ray" in 1959 because Chevrolet no longer participated in factory racing. This vehicle had the largest impact on the styling of this generation, although it had no top and did not give away what the coupe would look like. The third inspiration was a Mako Shark Mitchell had caught while deep-sea fishing.

Production started for the 1963 model year and ended in 1967. Introducing a new name, "Sting Ray", the 1963 model was the first year for a Corvette coupe and it featured a distinctive tapering rear deck (a feature that reappeared on the 1971 "Boattail" Buick Riviera) with, for 1963 only, a split rear window. The Sting Ray featured hidden headlamps, non-functional hood vents, and an independent rear suspension.^[2] Duntov never liked the split rear window because it blocked rear vision, but Mitchell thought it to be a key part of the entire design. Maximum power for 1963 was 360 bhp (270 kW) and was raised to 375 bhp (280 kW) in 1964. Options included electronic ignition, the breakerless magnetic pulse-triggered Delcotronic first offered on some 1963 Pontiac models.^[3] On 1964 models the decorative hood vents were eliminated and Duntov got his way with the split rear window changed to a full width window.

1965 Corvette Sting Ray Coupe

Four-wheel disc brakes were introduced in 1965, as was a "big block" engine option, the 396 cu in (6.49 L) V8. Side exhaust pipes were also optional in 1965 and continued through 1967. The introduction of the 425 bhp (317 kW) 396 cu in (6.49 L) big block in 1965 spelled the beginning of the end for the Rochester fuel injection system. The 396 cu in (6.49 L) option cost US$292.70 while the fuel injected 327 cu in (5.36 L) engine cost US$538.00. Few people could justify spending US$245.00 more for 50 bhp (37 kW) less, even if the FI cars offered optional bigger brakes not available on carbureted models.^[2] With only 771 fuel-injected cars built in 1965, Chevrolet discontinued the option the following year. Chevrolet would up the ante in 1966 with the introduction of an even larger 427 cu in (7.00 L) Big Block version, creating what would be one of the most collectible Corvettes ever. Other options available on the C2 included the Wonderbar auto-tuning AM radio, AM-FM radio (mid 1963), air conditioning (late 1963), a telescopic steering wheel (1965) and headrests (1966).

1967 Corvette Sting Ray Convertible

1967 was the final year for the C2 generation. It featured restyled fender vents, less ornamentation and the first use of all four taillights in red; back-up lamps were now rectangular, centrally located. (The all-four red taillight treatment continued on the first C3 in 1968 only and returned on the first C4 in 1984, continuing on all Corvettes since). 1967 had the first L88 engine option which was rated at 430 bhp (320 kW), but unofficial estimates place the actual output at 560 bhp (420 kW) or more.^[4] Only twenty such engines were installed at the factory. From 1967 (to 1969), the Holley triple two-barrel carburetor, or Tri-Power, was available on the 427 L89 (a US$368 option, on top of the cost for the high-performance 427).^[5] Despite these changes, sales slipped over 15%, to 22,940 (8,504 coupes, off close to 15%, and 14,436 convertibles, down nearly 19%).^[6]

1969 third gen.Corvette

Corvette chief engineer Zora Arkus-Duntov came up with a lightweight version of the C2 in 1962. Concerned about Ford and what they were doing with the Shelby Cobra, GM planned 100 Grand Sport Corvettes but only five were built. They were driven by historic drivers such as Roger Penske, A. J. Foyt, Jim Hall, and Dick Guldstrand among others. Today the cars 001-005 are all held by private owners, and are among the most coveted and valuable Corvettes ever built.



The C3 was originally intended to be introduced for the 1967 model year; however, quality issues delayed its introduction until the following year.

Father and son bond-Corvette Z06

Last week I've posted a video where a guy drove his mother around Laguna Seca in a Corvette at full speed.Now this week is a guy that does the same thing with his child son only now are drifts.Watch the video to see the kid's reaction.I think his face says that it was worth it,every penny ! 

With Mom in a XR1 at Laguna Seca

Have you ever wondered how it would be like to take your mom in a Corvette ZR1 around Laguna Seca at full speed? Well this guy did it ! Watch the video is you're curios how that went !

Chevrolet Corvette

The Chevrolet Corvette is a sports car by the Chevrolet division of General Motors that has been produced in six generations. The first model, a convertible, was designed by Harley Earl and introduced at the GM Motorama in 1953 as a concept show car. Myron Scott is credited for naming the car after the type of small, maneuverable warship called corvette.[1] Originally built in Flint, Michigan and St. Louis, Missouri, the Corvette is currently built in Bowling Green, Kentucky and is the official sports car of the Commonwealth of Kentucky. The National Corvette Museum documents the car's worldwide history and hosts the annual event.