Callaway Cars Incorporated
Encyclopedia
Callaway Cars Inc. is an engine design company who is notable for their modification of Chevrolet
Chevrolet
Chevrolet , also known as Chevy , is a brand of vehicle produced by General Motors Company . Founded by Louis Chevrolet and ousted GM founder William C. Durant on November 3, 1911, General Motors acquired Chevrolet in 1918...

 cars, the Corvette
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...

 sport cars in particular, especially their twin-turbo
Twin-turbo
Twin-turbo refers to a turbocharged engine, in which two turbochargers compress the intake charge. There are two commonly used twin turbo configurations: parallel twin-turbo and sequential twin-turbo...

 kit that became a dealer option and their record breaking Corvette Sledgehammer car.

History

In 1973, Reeves Callaway, not in a financial position to be able to start his dream of embarking on a racing career, did what many aspiring drivers do- Callaway went to work as a driving instructor for Bob Bondurant
Bob Bondurant
Robert Bondurant is an American former racecar driver who raced for Shelby American, Ferrari and Eagle teams.During his teens, Bondurant raced an Indian motorcycle on dirt ovals...

's racing school
Bob Bondurant School of High Performance Driving
The Bob Bondurant School of High Performance Driving is an American driving school, specialising in racing and police driving education. It is located in Phoenix, Arizona....

.

While using the newly launched BMW 320i
BMW E21
BMW E21 is the body designation for the first BMW 3 Series compact executive car, produced by the German automaker BMW from 1975 to 1983. This series was the immediate successor to the BMW 2002 and was superseded by the BMW E30 platform....

 as a school car, he became familiar with its intricacies and deficiencies, he later took hold of one of its cars to his garage in Old Lyme with the intention of tuning for more power.

As a result, Callaway constructed and installed his first prototype turbocharger system and offered Car and Driver
Car and Driver
Car and Driver is an American automotive enthusiast magazine. Its total circulation is 1.31 million. It is owned by Hearst Magazines, who purchased prior owner Hachette Filipacchi Media U.S. in 2011...

 journalist Don Sherman to drive the car resulting in a one-page article, giving the modified car great acclaim. Realising its commercial potential, Sherman told Callaway that he could make turbocharger kits available to the BMW community but he didn't even have the equipment to manufacture the components including a drill press. As business began to arrive, Callaway formed Callaway Cars, Inc in 1977.

Over the years, Callaway developed turbocharger kits for BMW
BMW
Bayerische Motoren Werke AG is a German automobile, motorcycle and engine manufacturing company founded in 1916. It also owns and produces the Mini marque, and is the parent company of Rolls-Royce Motor Cars. BMW produces motorcycles under BMW Motorrad and Husqvarna brands...

, Volkswagen
Volkswagen
Volkswagen is a German automobile manufacturer and is the original and biggest-selling marque of the Volkswagen Group, which now also owns the Audi, Bentley, Bugatti, Lamborghini, SEAT, and Škoda marques and the truck manufacturer Scania.Volkswagen means "people's car" in German, where it is...

, Porsche
Porsche
Porsche Automobil Holding SE, usually shortened to Porsche SE a Societas Europaea or European Public Company, is a German based holding company with investments in the automotive industry....

, Audi
Audi
Audi AG is a German automobile manufacturer, from supermini to crossover SUVs in various body styles and price ranges that are marketed under the Audi brand , positioned as the premium brand within the Volkswagen Group....

 and Mercedes-Benz
Mercedes-Benz
Mercedes-Benz is a German manufacturer of automobiles, buses, coaches, and trucks. Mercedes-Benz is a division of its parent company, Daimler AG...

. He also developed the HH IndyCar
American Championship Car Racing
Since 1916 there has been a recognized United States national automobile racing National Championship for drivers of professional-level, single-seat open wheel race cars. The championship has been under the auspices of several different sanctioning bodies since 1909. Since 1911, the Indianapolis...

 V8 engine
V8 engine
A V8 engine is a V engine with eight cylinders mounted on the crankcase in two banks of four cylinders, in most cases set at a right angle to each other but sometimes at a narrower angle, with all eight pistons driving a common crankshaft....

 and later a twin turbo kit for the Alfa Romeo GTV6. The company would become famous in 1987 when they developed a twin turbo kit for the Corvette
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...

. As they were dealer options, Callaway sold 500 of them over a period of five years.

Callaway was also commissioned by Aston Martin
Aston Martin
Aston Martin Lagonda Limited is a British manufacturer of luxury sports cars, based in Gaydon, Warwickshire. The company name is derived from the name of one of the company's founders, Lionel Martin, and from the Aston Hill speed hillclimb near Aston Clinton in Buckinghamshire...

 to build the 5.3L V8 engine from the newly launched Virage
Aston Martin Virage
The Virage was Aston Martin's replacement for the decades-old V8 models. Introduced at the Birmingham Motor Show in 1988, it was joined by the high-performance Vantage in 1993, and the name of the standard car was changed to V8 in 1996....

 for its AMR1
Aston Martin AMR1
The Aston Martin AMR1 was a Group C formula racing car developed in 1989 for car manufacturer Aston Martin. It participated in the 1989 World Sportscar Championship season and 1989 24 Hours of Le Mans.-Design:...

 Group C
Group C
Group C was a category of motorsport, introduced by the FIA in 1982 for sports car racing, along with Group A for touring cars and Group B for GTs....

 racer.

Callaway Cars headquarters is in Old Lyme, Connecticut
Old Lyme, Connecticut
Old Lyme is a town in New London County, Connecticut, United States. The Main Street of the town is a historic district. The town has long been a popular summer resort and artists' colony...

 with West Coast facilities in Orange County
Orange County, California
Orange County is a county in the U.S. state of California. Its county seat is Santa Ana. As of the 2010 census, its population was 3,010,232, up from 2,846,293 at the 2000 census, making it the third most populous county in California, behind Los Angeles County and San Diego County...

, California
California
California is a state located on the West Coast of the United States. It is by far the most populous U.S. state, and the third-largest by land area...

, and Europe
Europe
Europe is, by convention, one of the world's seven continents. Comprising the westernmost peninsula of Eurasia, Europe is generally 'divided' from Asia to its east by the watershed divides of the Ural and Caucasus Mountains, the Ural River, the Caspian and Black Seas, and the waterways connecting...

an facilities in Leingarten
Leingarten
Leingarten is a municipality in the district of Heilbronn, Baden-Württemberg, Germany. It is situated 7 km west of Heilbronn. It was formed 1 January 1970, when the municipalities of Großgartach and Schluchtern merged.-Location:...

, Germany
Germany
Germany , officially the Federal Republic of Germany , is a federal parliamentary republic in Europe. The country consists of 16 states while the capital and largest city is Berlin. Germany covers an area of 357,021 km2 and has a largely temperate seasonal climate...

. Its current project is the C16, a supercharged C6 Corvette
Chevrolet Corvette C6
The Chevrolet Corvette is a sports car produced by the Chevrolet division of General Motors introduced for the 2005 model year. The current generation Corvette is the first with exposed headlamps since the 1962 model...


C1 (Callaway Turbo Systems)

The Callaway Turbo Systems is a development program and its subsequent sale of its aftermarket turbocharger systems for BMW, VW, Porsche, Audi and Mercedes-Benz applications. This was the first of the Callaway's projects, running from its company's foundation in 1977 to 1984.

C2 (Callaway HH Indy Car Engine)

The Callaway HH Indy Car Engine is a project to build a racing engine for IndyCar
American Championship Car Racing
Since 1916 there has been a recognized United States national automobile racing National Championship for drivers of professional-level, single-seat open wheel race cars. The championship has been under the auspices of several different sanctioning bodies since 1909. Since 1911, the Indianapolis...

 specification from scratch as an eleven months long program between 1980 and '81, to show Callaway's capability to design and implement complex high performance engine program.

This was effectively a stillborn project, as the engine never ran beyond some initial bench testing.

C3 (Alfa Romeo Callaway Twin Turbo GTV-6)

Following its success with their turbocharger
Turbocharger
A turbocharger, or turbo , from the Greek "τύρβη" is a centrifugal compressor powered by a turbine that is driven by an engine's exhaust gases. Its benefit lies with the compressor increasing the mass of air entering the engine , thereby resulting in greater performance...

 kits, this led a commission by Alfa Romeo
Alfa Romeo
Alfa Romeo Automobiles S.p.A. is an Italian manufacturer of cars. Founded as A.L.F.A. on June 24, 1910, in Milan, the company has been involved in car racing since 1911, and has a reputation for building expensive sports cars...

 to produce a higher end version of its 2.5 liter GTV-6 coupé
Coupé
A coupé or coupe is a closed car body style , the precise definition of which varies from manufacturer to manufacturer, and over time...

. Between thirty and thirty-six examples were built between 1983 and 1986, with the first prototype being sold and titled as a 1984 model, the subsequent four prototypes as 1985 models and the remainder (i.e. the "regular production") being sold as 1986 model year cars. In addition to numerous small component upgrades, the Callaway GTVs included a much revised suspension, improved brakes and a twin-turbocharger system, boosting performance to near-exotic levels.

The car's performance caught the attention of Dave McLellan
Dave McLellan
Dave McLellan was an automotive engineer for General Motors, most notably the chief engineer for the Corvette from 1975 until his retirement in 1992....

, Chief Engineer of the Corvette, and would lead to the Callaway-Corvette association it became famous for.

C4 (RPO B2K Callaway Twin Turbo Corvette)

The special edition Callaway Twin Turbo Corvette was available from 1987 to 1991 as Regular Production Option (RPO) B2K and could be ordered from select dealers in the US. Corvette orders with the B2K option selected were shipped to Callaway Cars in Old Lyme, Connecticut, for the Twin Turbo conversion directly from the Bowling Green assembly plant.

Once converted and tested, the Callaway Corvettes were then shipped to their ordering dealers for final delivery to their respective owners. Dealer repairs of the Callaway Twin Turbo Corvettes were covered by the standard GM 12 mo./12,000 mile warranty, with Callaway Cars, Inc. reimbursing dealers for time and materials on repairs to the added components. This was the only time where GM has allowed a factory orderable non-GM performance enhancement on the Corvette.

The ultimate Callaway Twin Turbo Corvette is known as the Sledgehammer Corvette. Until 1999, the Callaway Sledgehammer Corvette held the World Street Legal speed record of 254.76 mi/h. It is an emissions compliant, street legal vehicle, with all the creature comforts like Air Conditioning, Radio, etc. that you would find in any production street Corvette. Built using production chassis 1988-051, it achieved its World Record Title in November 1988 at the Ohio Transportation Research Center (TRC). In addition to the engine performance improvements, the Sledgehammer Corvette used modified body panels to reduce drag and improve stability.

This body modification, known as the Callaway AeroBody was designed by Automotive Designer Paul Deutschman. The Callaway AeroBody was later available as an appearance enhancement option for Callaway Corvettes.

On the performance side, the 1987 production version of the Callaway Twin Turbo, B2K option provided 345 hp and 465 lbft of torque, with a top speed of 178 mi/h, at a price of just over $50K. In those days, this brought the Callaway Corvette into the performance category of Ferrari
Ferrari
Ferrari S.p.A. is an Italian sports car manufacturer based in Maranello, Italy. Founded by Enzo Ferrari in 1929, as Scuderia Ferrari, the company sponsored drivers and manufactured race cars before moving into production of street-legal vehicles as Ferrari S.p.A. in 1947...

 and Lamborghini
Lamborghini
Automobili Lamborghini S.p.A., commonly referred to as Lamborghini , is an Italian car manufacturer. The company was founded by manufacturing magnate Ferruccio Lamborghini in 1963, with the objective of producing a refined grand touring car to compete with established offerings from marques like...

 which cost in the range of $100–$175K. According to the National Corvette Museum records, that year 188 Corvettes were built with the Callaway Twin Turbo (B2K) option existing on 167 cars.

As a footnote to 1987 production, one 1986 Callaway Twin Turbo Corvette was built at the very start of production. This sole 1986 Callaway Corvette, was built using one of the (fifty) Malcolm Konner Special Edition Corvette Coupes built that year.

For 1988, Callaway increased the stock performance of the Twin Turbo Corvette to yield 382 hp and 562 lbft of torque. That year, 125 Callaway Twin Turbo Corvettes were built with 105 ordered with the RPO B2K option.

The 1989 Callaway Twin Turbo option provided the same power output as the 1988. However, after the World Record run of the Callaway Sledgehammer, the AeroBody became an option for the Callaway Twin Turbo Corvette. A total of 51 (B2K) Callaway Twin Turbo Corvettes were ordered that year with a total of 68 cars produced.

In 1990, GM finally introduced their ZR-1 Corvette which obtained similar performance characteristics as the 1989 Callaway Twin-Turbo option. Although power was up to 390 hp and 562 lbft of torque, 1990 saw the lowest number of (B2K) Callaway Twin Turbo Corvettes ordered with 59 with only 58 actually built.

To counter the ZR-1, for the 1991 model year, Callaway was able to bring up the output of the B2K option up to 403 hp and 582 lbft of torque. 1991 would be the last year of the L98 engine which was the base engine of the Callaway Twin Turbo Corvette. There were 62 ordered in this last year of Twin Turbo production. In total 497 (B2K) Callaway Twin Turbo Corvettes were ordered through the normal sales channels. However, before the Callaway Twin Turbo option went away, Callaway and Deutschman went to work to provide yet a more powerful and stunning car, the Callaway Speedster. A small amount of the final twin turbo cars and the Speedsters (10 Series 1 Speedsters w/ L98 Twin Turbo) were designated 500 Series Callaway Twin Turbo Corvettes. These unique cars came with OZ racing wheels and Bridgestone Potenza tires, a "500 Series" dash plaque, "500 Series" intercooler badge, special car bra, car cover and floor mats.

Regarding the "production" of the Callaway Sledgehammer, Reeves Callaway used a production Callaway Twin Turbo Corvette, 1988-051, to be precise. The car was, in fact, a production car, with all options found in other Corvettes the same model-year.

C5 (Aston Martin Virage V-8 & AMR-1 Group C Engine)

Aston Martin retained Callaway to help it re-engineer its then 30-year old Tadek Marek 2v V-8. Callaway's brief was for 4v cylinderheads, increased power, and single configuration worldwide emissions compliance.

The Virage road car engine was so successful that Aston relied on Callaway to supply a race version of the road car engine for their 1989 Group C prototype, the AMR-1. It finished eleventh in its first and only appearance at Le Mans.

C6 (Callaway SuperNatural Corvette)

In 1992, base Corvettes now used the LT1 engine. With major changes between that engine and the earlier L98, Callaway shifted from positive manifold pressure to increased displacement with the new SuperNatural series.
Introduced with 400 hp, power climbed to 425, then 435, and finally 450 hp for the LT1 and LT4 cars.
During this same period, Callaway also built SuperNatural Corvettes based upon the ZR-1 Corvette and the LT5 engine. Introduced with 475 hp, power was also available with 490 hp with optional header cats. A full menu of options (brakes, suspension, exhaust, body, wheels/tires) were available. Originally, the SuperNatural Series was called the CL-1 and CR-1 CL, for the LT1 powered cars. CR, for the LT5 powered cars. This moniker was very short lived, changing to SuperNatural soon after introduction.

C7 (Callaway C7)

The C7 is the ill-fated supercar built for GT1 category racing, developed between 1993 to 1996, it attempted to pre-qualify at the 1996 24 Hours of Le Mans
1996 24 Hours of Le Mans
The 1996 24 Hours of Le Mans was the 64th Grand Prix of Endurance, and took place on June 15 and 16 1996.-Race:The 1996 race was won by a car that was considered by Porsche to not be a factory-backed entry, instead run by Joest Racing...

 which it failed to. It was subsequently entered in to the Daytona Rolex 24 Hour, where it led the race at the 12 hour point. However, an oil system failure prevented it from finishing, this its first real long-distance test.

C8 (SuperNatural Camaro)

Approximately 55 SuperNatural Camaros were created and approximately 18 Callaway C8s. In order to be an official C8, the engine and bodykit had to be installed. Brembo brakes, various suspensions, and an upgraded interior were all available options. The first SuperNatural Camaro is a '93 Indy pace car replica (one of the 633 wearing the same decals and such as the two actual cars that paced the race). The first production (and completed) C8 is a red '94 convertible. The silver prototype used in so many advertisements and marketing materials is not considered a production C8, but may be considered one of those 18.

For 2002, Callaway decided to make Commemorative C8s. These were based on the 98-02 Camaro, and only 2 were made. One '96 Callaway C8 was upgraded to the Commemorative bodykit, so technically 3 were made; just not according to Callaway's records, even though they did the work. Only the silver Commemorative C8 is technically a 2002. The other one is Cayenne Red metallic and is a '98. The biggest difference between a Callaway C8 and a Commemorative C8 is the different nose.

C11 (Limited Edition Range Rover 4.6 HSE)

4.6 HSE Callaway Edition: The top of the line model in 1999 was a limited edition (220 were made and had stickers on the dash that say Callaway and have the number) 4.6 HSE modified by Callaway in Old Lyme, Connecticut. They were available in Niagra Gray, Epsom Green, or Rutland Red. They had much of the black plastic painted body color and special dual exhaust system. The high performance Callaway engine with 240 bhp at 5,000 rpm and peak torque of 285 ft.lbf at 3,500 rpm improved the 4.6 HSE acceleration 0-60 mph from 9.7 seconds to 8.6 seconds. The Callaway 4.6 HSE sold for $75,000.

The "short block" of the engine is the same as other Land Rover 4.6 HSE models. Short-blocks used for the 4.6L Callaway engines were stamped with a 9.60:1 compression ratio marking from Land Rover. The increase of 0.25 points, up from the standard 4.6L compression ratio of 9.35:1 was achieved by a modification to the cylinder heads. The cylinder heads were also modified to improve the airflow into and out of the combustion chambers. The inlet manifold gasket front valley clamp has been changed to accommodate the heater hose positioning on the bottom front of the Callaway manifold. The ram pipe housing has been modified by shortening the ram pipe tube lengths. The intake runner lengths were tuned to increase both power and torque. The black plastic air inlet tube was replaced with a larger diameter fancy looking carbon fiber inlet tube to match the larger throttle bore in the plenum. The air cleaner box base was modified to increase the airflow. The Lucas GEMS ECU was calibrated to support the mechanical changes to the Callaway engine (the Callaway engine had the same basic FI as in 1998 and did not have the Bosch system that was on other 1999 HSEs).

The Callaway drivetrain was also modified. The automatic transmission used in the Callaway 4.6 HSE Range has a different torque converter and the transmission control unit (TCU) has been recalibrated to take advantage of the increased torque and power of the engine. The shift points in both "NORMAL" and "SPORT" modes have been changed to match the engine's increased power.

The electronic shift transfer case has a new ratio sprocket set and chain. The resulting new ratios provide a high range ratio of 1.294:1, and a low range ratio of 3.481:1. The ratio change improves acceleration performance in high range while also providing improved off-road "crawl" performance and coast down rates in low range.

The front axle shafts used on the Callaway 4.6 HSE have been strengthened to withstand the increased torque to the front wheels from the engine and transmission changes. A material change in the axles ensures durability will be maintained for the front axle half shafts. <>

Callaway decided to use a four-pin front differential to accommodate the increased torque rather than the two-pin front diff used on standard production Range Rovers. After working with Callaway on the four pin front diff Land Rover decided to put them in all of the 1999 Range Rovers since the 4 wheel traction control that added ABS regulated traction control to the front axle in 1999 also put extra stress on the front diff (Range Rovers from 1993 to 1998 only had traction control on the rear axle). <>

The Callaway dual exhaust had reduced backpressure and was similar to the dual exhaust that all NAS Range Rovers got in the 2000 model year. Changes to the exhaust system were made rearward of the catalyst "Y" pipe. The exhaust system backpressure was reduced by 43 percent, and the interior sound level in the passenger cabin was virtually unchanged. The center silencer provides reduced backpressure and is constructed from stainless steel. A twin tail pipe system was selected to provide a performance look and sound. The straight exit twin outlets are accented by T-304 stainless steel resonator tips to visually differentiate the Callaway 4.6 HSE from other Range Rovers. The pipes are welded on to the stock mufflers and the rear bumper has cut outs for the tailpipes like it had in 1995 and 1996 (the stock single muffler pointed down and the rear bumper did not have any cut out on the 1997, 1998 and non-Callaway 1999 Range Rovers).<>The exterior of the Callaway 4.6 HSE Range Rover is had painted body color components. The exterior components painted to match the body color are, the Entire Front Bumper cover, the Front Grill, Left and Right Headlamp trim, Left and Right Door Mirror Casings, Rear Bumper including area with Exhaust Tip Openings

All Callaway Range Rovers came with the "Proline" 18 inch 5-spoke alloy wheels.
Body Colors Available: Niagara Gray, Epsom Green, and Rutland Red

The vehicles are badged with "CALLAWAY" on the upper engine plenum, and on the lower rear tailgate under the 4.6 HSE logs (some models also have Callaway stickers on the front fenders.

Inside, the Callaway RRs some had additional wood surrounding the power window switches and HVAC controls wood and leather steering wheels and most (but not all) had GPS.

C12 (Callaway C12 and IVM C12)

With the unveiling of the completely redesigned fifth-generation Corvette, Callaway went back to the drawing board as well. Produced from 1997 to 2001, Reeves Callaway sought to compete in the GT2 Class at the famous Le Mans race. The race car's crowning achievement was a pole position in the 2001 race. On the street, Callaway's C12 was a complete reworking of the C5 Corvette with only the roof and greenhouse left untouched. In total, 20 cars were produced with exposed headlights, two taillights as opposed to the traditional four, complete leather-covered interiors dyed to the owner's specifications and multiple under-hood modifications. According to Callaway, the C12's were built "to a standard rather than a cost" with high-profile customers such as Dale Earnhardt Jr., Otis Chandler, Andrew McKelvey, Ely Callaway, Rick Hendrick and Tommy Mottola buying the car.

In Germany
Germany
Germany , officially the Federal Republic of Germany , is a federal parliamentary republic in Europe. The country consists of 16 states while the capital and largest city is Berlin. Germany covers an area of 357,021 km2 and has a largely temperate seasonal climate...

, the sports car model was built in Bad Friedrichshall
Bad Friedrichshall
Bad Friedrichshall is a town in the district of Heilbronn in Baden-Württemberg in southern Germany. It is situated at the confluence of the Jagst and the Kocher into the Neckar, 10 km north of Heilbronn...

 by the IVM Automotive (a part of the Ingenieurbüro für Verfahrenstechnik und Maschinenbau GmbH & Co. KG) as the IVM C12. The German version was available as a Coupé, Hardtop and Cabriolét. It was offered as a small range model with 5.7 litre V8 400 PS powered engines. In 2000, IVM has added an 440 PS powered engine to the range. The IVM model was built from 1998 up to 2003. The prices for the IVM C12 has amounted from 350,000 up to 370,000 DM.
The CALLAWAY C 12 is slow on the pullaway, but once it has its speed it is fast

C13 (Holden Special Vehicles GTS Coupe)

Holden Special Vehicles HSV GTS 300 is a motor vehicle which is no longer under production.

The GTS 300, named so because its engine's output was 300 kW was available in both Coupe and Commodore (sedan) bases. It is powered by a 5.7-litre Callaway-tuned C4B engine, based on the Chevrolet LS1 V8. Until recently it was the most powerful Australian made production car and a true collectors item. The GTS came with a Tremec T-56 six speed manual transmission only when it was released in 1999 and was one of the fastest sedans in the world, if not the outright fastest. It was outdone in 2002 with the release of the supercharged V8 Mercedes-Benz E55 AMG.

Only 300 made by Holden Special Vehicles (HSV) mostly hand built from 1999 to 2002 in Melbourne Australia
There were 200, 4-door Commodore (G8) sedans VT, VX and 100 Monaro GTS (GTO) coupes in VX2 - Purchase price new approx AUD$95,500. On road costs with 2-way sun-roof and GPS Navigator approx. AUD$105,000.

The cars utilised the Callaway 13 or more commonly known as the C4B 5.7 litre Chevrolet V8 engine. Conservatively tuned and badged as 300 kW with a manual T56 6 speed transmission and four piston caliper disc brakes all round they were the flagship of Holden Special Vehicles.

Technical - enhanced GTS 300:
Once the original ECU was remapped,valve springs were replaced with performance double row springs, replaced titanium retainers, slightly shorter push rods, roller rocker clearances set to 20/1000", shift kitted with the air intake and exhaust pipes modified, produced in excess of 340 kW. Camshaft specs. 224 /230 Lift int. .581” exh. .588” overlap 114 degrees (red line at 6700 rpm) and using Shell 98/100 octane v-power gasoline, realized an increase in power to 375 kW or (503 bhp) at the flywheel and around 440 ft.lbf to 460 ft.lbf of torque) -Approx. 298 kW to 310 kW at the rear wheels. Zero to 62 mi/h in 4.55secs, standing Qtr. mile e.t. 12.5 seconds and an estimated top speed at 5000 rpm in 6th gear, approx 312 kilometre per hour.
      • C4B GTS cam is 212/222 .560/.569 116.9lsa ( as per Comp Cams check organised by Sonny from Marranos Enhancement Division in Sydney). 12.5 over the quarter is not correct, may be 13.5.

C15 (FIA Corvette GT3)

The Callaway Project C15, known as Corvette Z06.R GT3 is a competition version of the Corvette C6 Z06 built to compete in FIA GT3 category GT racing. The cars are built at the company's facility in Leingarten
Leingarten
Leingarten is a municipality in the district of Heilbronn, Baden-Württemberg, Germany. It is situated 7 km west of Heilbronn. It was formed 1 January 1970, when the municipalities of Großgartach and Schluchtern merged.-Location:...

, Germany
Germany
Germany , officially the Federal Republic of Germany , is a federal parliamentary republic in Europe. The country consists of 16 states while the capital and largest city is Berlin. Germany covers an area of 357,021 km2 and has a largely temperate seasonal climate...

 and raced in the FIA GT3 European Championship
FIA GT3 European Championship
The FIA GT3 European Championship is a sports car racing series organized by the Stéphane Ratel Organisation and regulated by the Fédération Internationale de l'Automobile . It is a championship derived from the international FIA GT1 World Championship, but meant to provide competition for more...

.

The first three Z06.Rs were built for Callaway themselves, followed by the rest for privateers. As of 2007, ten have been built to compete in FIA GT3 as well as the ADAC GT Masters
ADAC GT Masters
The ADAC GT Masters is a grand tourer-based auto racing series founded by the international Stéphane Ratel Organisation and supported by the German ADAC automotive club. Similar to an earlier ADAC GT Cup series in the 1990s, the new GT Masters ran their first season in 2007...

 and Belcar
Belcar
The Belcar Endurance Championship is the national sports car racing championship of Belgium. The series is sanctioned by the Royal Automobile Club of Belgium and run by the Stéphane Ratel Organisation . The series' title sponsor is Mediagroep Van Dyck.Since the 2007 season, the series has run...

 series.

The Callaway team, competing under the Martini-Callaway title in the FIA GT3 European Championship
FIA GT3 European Championship
The FIA GT3 European Championship is a sports car racing series organized by the Stéphane Ratel Organisation and regulated by the Fédération Internationale de l'Automobile . It is a championship derived from the international FIA GT1 World Championship, but meant to provide competition for more...

 earned three race victories and three second place finishes and won the Teams Championship in 2007. Drivers Luca Pirri and Jürgen von Gartzen took the runners-up in the GT3 Driver’s Championship. In 2010
2010 FIA GT3 European Championship season
The 2010 FIA GT3 European Championship season was the fifth season of the FIA GT3 European Championship. The season commenced on May 1 at Silverstone and ended on October 10 at Circuit Zolder. The season featured six double-header rounds, with each race lasting for a duration of 60 minutes...

, Callaway drivers Christian Hohenadel
Christian Hohenadel
Christian Hohenadel is a German race car driver.Together with Daniel Keilwitz, he won four races and the drivers championship of the 2010 FIA GT3 championship, driving a Callaway Corvette Z06.R GT3...

 and Daniel Keilwitz finished the season as FIA GT3 champions, taking four victories to secure the title with a round to spare. The knowledge and experience learned from the race program is used in the Callaway C16 series of road-going sports cars.

C16 (Callaway C16)

The Callaway C16 is a bespoke automobile based on the C6 Corvette
Chevrolet Corvette C6
The Chevrolet Corvette is a sports car produced by the Chevrolet division of General Motors introduced for the 2005 model year. The current generation Corvette is the first with exposed headlamps since the 1962 model...

. The C16 is marketed as an alternative to the Porsche 911 GT3
Porsche 911 GT3
The Porsche 911 GT3 is a higher performance version of the Porsche 911 sports car. It is the latest in a line of high performance models, beginning with the 1973 911 RS...

, the Lamborghini Murciélago
Lamborghini Murciélago
The Lamborghini Murciélago is a two-door, two-seat sports car produced by Italian automaker Lamborghini between 2001 and 2010. Successor to the Diablo and flagship of the automaker's lineup, the Murciélago was introduced as a coupé in 2001. The automaker's first new design in eleven years, the car...

, the Ferrari F430
Ferrari F430
The Ferrari F430 is a sports car that was produced by the Italian automaker Ferrari from 2004 to 2009, as a successor to the 360. It debuted at the 2004 Paris Motor Show...

 or the 599 GTB
Ferrari 599 GTB Fiorano
The 599 GTB Fiorano is an Italian gran turismo produced by Ferrari. It is the brand's two-seat flagship, replacing the 575 M Maranello in 2006 as a 2007 model....

 and is offered in three different body styles, Cabrio, Coupé
Coupé
A coupé or coupe is a closed car body style , the precise definition of which varies from manufacturer to manufacturer, and over time...

 and Speedster
Speedster
Speedster may refer to:In automotive:* Opel Speedster* Plymouth Speedster* Porsche Speedster* Studebaker Speedster* Speedster AutomobilesIn fiction:* Speedster , a type of superhero whose primary power is superspeed....

.

It was unveiled at the Greater Los Angeles Auto Show in 2006. Production began in 2007. The car is sold fully equipped with a set coordinated features such as the supercharged engine, full leather interior, proprietary Callaway/Eibach suspension system, the LeMans brakes and Carbon Magnesium wheels. Options are the selection of a comfort seat or a sportseat, carbon ceramic brakes, and fitted luggage. Cars are built to order where the owner chooses the interior leathers and the exterior color. All cars are sold by Callaway directly, and are supported by a 5 year/ 50,000 mile powertrain warranty.

Like the Callaway C12, the only body panels the car retains from the C6 are the roof panel, the rear hatch, and the rear view mirrors.
From 2008-current, standard horsepower is 650 for the C16 Coupe and Cabrio, 700 for the Speedster.

C17 (Callaway SuperCharged Corvettes)

C17 represents the Callaway Corvette Program.

Offered through select Chevrolet dealers around the United States and Canada:
2006–2007 Callaway Corvettes were offered in SC560 and SC616 (horsepower) levels.
2008–2010+ Callaway Corvettes were/are offered as SC580, SC606, and SC652 (horsepower) levels.
A special model was offered in 2009 called the Reeves Callaway Signature Edition (RCSE). Featuring 606 hp, the RCSE debuted the SC606 package and the RCSE interior group. Only 29 of the RCSE models were planned for build and were only offered in Cyber Gray, Crystal Red, and Blade Silver. All wore Callaway 9-spoke aluminum wheels and introduced the new Carbon Fiber hood from Callaway.

C18 (2010+ Callaway Camaro)

C18 represents the complete Callaway Camaro vehicles with specific components.

Also available, are Callaway SC572 (manual) and SC552 (automatic) SuperCharged Camaros. The alpha-numeric moniker designates the horsepower output of each.

C19 (Callaway SuperCharged SportTrucks)

C19 represents the Callaway SportTruck Program.

SC450, SC490, and SC540 SuperCharged Trucks are the latest program from Callaway Cars. Built upon the Silverado, Avalanche, Tahoe, Suburban, and (gasoline-engine) 2500HD-series trucks, this is Callaway's newest offering for 2011.

Mercedes Benz 240D

  • initially created for his own personal 240D
  • boosted stock HP from 67 hp to est 95 hp
  • Covered in detail by Motor Trends May 1983

SledgeHammer Corvette

callaway corvette

After the Car and Driver
Car and Driver
Car and Driver is an American automotive enthusiast magazine. Its total circulation is 1.31 million. It is owned by Hearst Magazines, who purchased prior owner Hachette Filipacchi Media U.S. in 2011...

 test event, which Callaway drove a specially modified Callaway Twin Turbo Corvette (C4), known as the "Top Gun" project to the best of 231 mph (372 km/h), winning the test run. A production Callaway managed a best of, 187.95 mph (302.48 km/h).

As Callaway wanted to take the record further into 250 mph (402 km/h) with the car being docile during traffic, he developed the SledgeHammer Corvette, to allow airflow into the engine, he commissioned Paul Deutschman of Deutschman Design to develop the Callaway AeroBody for stability. The Callaway-built engine was extensively hand built with its turbo intercoolers being relocated from either side of the intake manifold to the front, behind the bumper. Overall engine power was rated at 898 hp @ 6200 rpm with 772 lbft of torque @ 5250 rpm. The car retained its road car amenities such as power window
Power window
Power windows or electric windows as well as electric or power window lifts are automobile windows which can be raised and lowered by depressing a button or switch, as opposed to using a hand-turned crank handle.- History :Packard introduced the first power windows in the 1940 Packard...

s and locks
Power door locks
Power door locks allow the driver or front passenger to simultaneously lock or unlock all the doors of an automobile or truck, by pressing a button or flipping a switch....

, Bose radio, electronic air conditioning
Air conditioning
An air conditioner is a home appliance, system, or mechanism designed to dehumidify and extract heat from an area. The cooling is done using a simple refrigeration cycle...

 and, power sport seat
Power seat
A power seat in an automobile is a front seat which can be adjusted by using a switch or joystick and a set of small electric motors. Most cars with this feature have controls for the driver's seat only, though almost all luxury cars also have power controls for the front passenger seat.In addition...

s with all necessary race car modifications such as roll cage
Roll cage
A roll cage is a specially constructed frame built in the cab of a vehicle to protect its occupants from being injured in an accident, particularly in the event of a roll-over. Roll cages are used in nearly all purpose-built racecars, and in most cars modified for racing...

.

Driven by John Lingenfelter
John Lingenfelter
John Lingenfelter was an NHRA driver, engineer and legendary tuner....

, the car reached 254.76 mph (410 km/h) mph at the Transportation Research Center, Ohio
Ohio
Ohio is a Midwestern state in the United States. The 34th largest state by area in the U.S.,it is the 7th‑most populous with over 11.5 million residents, containing several major American cities and seven metropolitan areas with populations of 500,000 or more.The state's capital is Columbus...

and was driven back to Old Lyme.

The Callaway AeroBody would become commercially available this would become the first of the partnerships with Deutschman, in which he also designed its later models such as Speedster, SuperNatural, C7, C12 and C16.

Performance Stats

  • Horsepower: 898 bhp @ 6200 rpm
  • Torque: 772.2 lbft @ 5250 rpm
  • BHP/Liter: 157.54 bhp/Liter
  • Power-to-weight ratio: 0.565 bhp/kg
  • Top Speed: 254.8 mi/h
  • 0 - 60 mi/h acceleration: 3.9 seconds
  • 1/4 Mile: 10.6 seconds

External links

The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
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