The Chevrolet Corvette GTP was an American Grand Touring Prototype-class

sports prototype A sports prototype, sometimes referred to as simply a prototype, is a type of race car that is used in the highest-level categories of sports car racing. These purpose-built racing cars, unlike street-legal and production-based racing cars, are n ...

racing car Auto racing (also known as car racing, motor racing, or automobile racing) is a motorsport involving the racing of automobiles for competition. Auto racing has existed since the invention of the automobile. Races of various sorts were organise ...

which successfully participated in the

IMSA Camel GT IMSA GT was a sports car racing series organized by International Motor Sports Association. Races took place primarily in the United States, and occasionally in Canada. History The series was founded in 1969 by John and Peggy Bishop, and Bill ...

from 1984 until 1989. The car was professionally fielded in competition as

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Chevrolet Corvette C4 The Chevrolet Corvette (C4) is a sports car produced by American automobile manufacturer Chevrolet from 1983 until 1996. The convertible returned, as did higher performance engines, exemplified by the GM LT engine#LT5, LT5 found in the ZR-1. In ...

official factory team effort in the IMSA GTP class.

Development

Prior to 1984,

Chevrolet Chevrolet ( ), colloquially referred to as Chevy and formally the Chevrolet Motor Division of General Motors Company, is an American automobile division of the American manufacturer General Motors (GM). Louis Chevrolet (1878–1941) and ous ...

naturally aspirated V8s and

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turbocharged In an internal combustion engine, a turbocharger (often called a turbo) is a forced induction device that is powered by the flow of exhaust gases. It uses this energy to compress the intake gas, forcing more air into the engine in order to pro ...

V6s were popular engines in the GTP class for privateer teams.

(GM) saw the opportunity to enter the

IMSA GT Championship IMSA GT was a sports car racing series organized by International Motor Sports Association. Races took place primarily in the United States, and occasionally in Canada. History The series was founded in 1969 by John and Peggy Bishop, and Bill F ...

for themselves in the 1984 season in competing against

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Porsche Dr. Ing. h.c. F. Porsche AG, usually shortened to Porsche (; see #Pronunciation, below), is a German automobile manufacturer specializing in high-performance sports cars, SUVs and sedans, headquartered in Stuttgart, Baden-Württemberg, Germany ...

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and

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, but more importantly to expand and explore the limits of the V8 and V6 engine programs. General Motors'

race engineering team developed the car partnering with Lola Cars International, who had previous experience building cars for Mazda, to build their own chassis dubbed the Corvette GTP. Following testing on an older

Lola T600 The Lola T600 was a racing car introduced in 1981 by Lola Cars as a customer chassis. It was the first GT prototype race car to incorporate ground-effect tunnels for downforce. The revolutionary aerodynamic design of the T600 was widely imita ...

equipped with a Chevrolet V8, an all new car was built, identified as the T710. The first chassis was delivered to General Motors in 1984 and outfitted with a 3.4-litre turbocharged V6 built by Ryan Falconer, a destroked version of the 4.3-liter Chevrolet V6. A second chassis, known as T711 used a

-derived 5.7-liter naturally aspirated V8 developing 800 hp, and was campaigned by Lee Racing. The cars featured bodywork similar to a

at the front, with a long pontoon-style tail featuring Corvette tail lights. Large side intakes would feed the radiators while the V6 turbocharged chassis had a snorkel built into the top of the fender to feed the turbocharger. Body evolution over the next few years included a change to the side intake and exploring a short tail layout and dual element rear wing.

Evolution

Following the successful first full season for the Corvette GTP in 1985, GM added two new chassis for 1986. Termed T86/10, the new cars featured evolved bodywork but remained essentially unchanged for the start of the season. The biggest difference was chassis HU01 sported a naturally aspirated V8, while chassis HU02 maintained the V6 power, but received a new shorter tail section. In 1987 two more chassis were added to the GM racing team fleet. The first, designated T86/12, used an

active suspension An active suspension is a type of automotive suspension on a vehicle. It uses an onboard system to control the vertical movement of the vehicle's wheels relative to the chassis or vehicle body rather than the passive suspension provided by large sp ...

system that would allow the car to alter its suspension stiffness during the race. The second chassis was a 1987-specification T87/10 which retained the turbocharged V6 power plant, but also ran both a Chevrolet Corvette race-spec V8.

Peerless Eagle 700

Following the abandonment of the project at the end of 1988 by General Motors, Peerless Racing purchased a new Corvette GTP from the factory, and it was campaigned in a partial season effort in 1989. After that season the decision was made to take Peerless' car into international racing, entering the

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. The car was used as a platform for 'Eagle Performance Engines' in an attempt to use a naturally-aspirated, 10.2-liter 4-cam, 32-valve, V8 Big Block Chevrolet to take on large manufacturers at Le Mans. The car was slightly modified to the point that Eagle chose to rename it the Eagle 700. Beyond the modifications necessary to house the large V8 engine internally, the car remained the same as it was run in IMSA series, including a short-tail design that GM had been developing for 1989. Hu8811-01 has been returned to its original state as was raced by Peerless Racing in the IMSA Series in Bud livery but the monster Eagle engine remains with the car as part of its racing and Corvette history.

Racing history

For 1985, the first Corvette GTP chassis was initially given to Lee Racing for its debut at the

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but suffered gearbox problems and did not finish. This was followed by a seventh-place finish at Miami, then another failure to finish at the

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. This was followed by a string of failures at Charlotte,

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, and Watkins Glen. By mid-season Hendrick Motorsports debuted their factory-backed team with

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sponsorship and leading driver David Hobbs. The team did not finish any races by the end of the season, although Lee Racing did rebound to score seventh-, eighth- and tenth-place finishes for the season. Into 1986, Hendrick Motorsports and Lee Racing continued their campaign with mixed results. Although both teams failed to finish the first three races of the season, Hendrick took the first victory for the Corvette GTP at

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for

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and Sarel van der Merwe. However, by that time Lee Racing abandoned their effort. Hendrick continued and had a fourth-place finish at Charlotte, seventh at Lime Rock, and third at

. A third Corvette GTP Lola chassis entered the season in May and campaigned by Hendricks would take the Corvette GTP's second victory on the streets of Palm Beach, defeating a

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by four tenths of a second. The 1986 season would see the only two first-place finishes by a Corvette GTP during their racing career. Hendrick started 1987 the same way they had 1986, failing to finish the first race of the season, mixed with relatively strong finishes, even suffering from a fire during the Miami event. Following a short stint of problems, the duo finished fourth and seventh at Portland, followed quickly by a lone third at Sears Point. One final third came in the streets of San Antonio before Hendrick closed the season with a series of problems. However, problems at Jaguar helped Chevrolet secure second in the manufacturers championship, once again losing to Porsche. By 1988, the Corvette GTPs were becoming more consistent as the team managed to overcome their mechanical woes, helped by the use of the naturally aspirated V8s. The season again began with an eighth-place finish at

be the first finish by a Corvette GTP that season. A seventh at Lime Rock and Mid-Ohio was followed by a third at Watkins Glen, tenth at Road America, and finally ninth at Sears Point. It was late in the season before the two Hendrick cars were joined by the new Peerless Racing squad, using the newest Corvette GTP chassis. Peerless took fourth place at Columbus, followed closely behind by Hendrick in fifth. Hendrick closed the season with a fifth at Del Mar. Chevrolet however finished fourth in championship. The Peerless Team had such notable drivers as David Hobbs, Jack Baldwin, Jacque Villeneuve & Scott Goodyear. After the 1988 season, General Motors chose to cancel their funding for the Corvette GTP project, and Hendrick Motorsport did not return to IMSA GT. Peerless Racing intended to continue through the 1989 season eventually finishing only one race, in 4th place at Watkins Glen. The Peerless car then was used by Eagle Performance which outfitted the chassis with their enormous 10.2-liter (4-cam, 32-valve) V8 Big Block Chevrolet engine unit, experimenting with this new setup Eagle intended to enter the car in the

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which was not successful as the car did not qualify in the night qualifying session due to an electrical problem, thus marking the end of the Corvette GTP.

Chassis

In total, seven cars were built under the Corvette GTP program. Each chassis has a different designation and number, the '10' in the chassis number indicates a car designed for GM's turbocharged V6, while '11' indicates a V8-powered chassis design, only two of the seven were designed for V-8 engines. Although, during 1986-87, GM did install 366 CID V8 engines in two of the V6 chassis. T710-HU01 * Hendrick Motorsport (1985–1986) :Winner at Road Atlanta (1986) T711-HU02 * Lee Racing (1985–1986) T86/10-HU01 * Hendrick Motorsport (1986–1987) : Winner at Palm Beach (1986) T86/10-HU02 * Hendrick Motorsport (1986–1988) T86/12-HU03 * Hendrick Motorsport (1987) : Equipped with Lotus active suspension T87/10-HU01 * Hendrick Motorsport (1988) T88/11-HU01 * Peerless Racing (1988–1989) * Eagle Performance (1990) * Leicester Motorsport (1994-2019)

References

External links

Lola Heritage
- Corvette GTP T88/11-HU01 history

- Lola Group C/GTP chassis history * http://www.racingsportscars.com/chassis/photo/T8811-HU01.html * http://www.corvettegtp.info * http://www.supercars.net/Pics?viewPic=y&source=gal&uID=119513&gID=3026&pgID=1&pID=1073298&first=true {{IMSA GTP Cars GTP Chevrolet Corvette GTP IMSA GTP cars 24 Hours of Le Mans race cars Cars introduced in 1984