Corvette: Year by Year
1953 1954 1955 1956 1957 1958 1959 1960 1961 1962 19631964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974
1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985
1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996
1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007
2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018
2019 2020 2021 2022 2023 2024 2025
2025 Corvette C8 ZR1 LT7 Engine
Previously, no Corvette shipped from the factory has been turbocharged. They have featured forced induction by way of supercharging which was first available in the C6 Z06 and later in the C7 Z06 and ZR1. But supercharging did not work in the C8 ZR1, partly because they are inherently heavy in the wrong area: on top of the engine. The problem with turbochargers in the C7 is that, it being a front engine car and the fact that the optimum location for turbochargers was the side of the engine meant that it limited the ability to turn the wheels.
They also extract an efficiency penalty; according to LT7 designer Dustin Gardner obtaining 1,000+ horsepower from a supercharged engine would require a 200 horsepower penalty just to turn the supercharger. Turbochargers, since they are powered by the exhaust, have no such requirement. According to GM President Mark Reuss, the turbos provide 20 to as much as 24 psi of boost.
A good idea that continues: The engine builder signature badge - the same as found on the LT6 installed in the Z06 - is part of the ZR1.
One option, last available in the 2017 Corvette was RPO PBC, the Engine Build Experience. It enabled the new Corvette purchaser to, under the guidance of a GM employee, build their own engine. At $5,000 a pop it was not a popular option and only 32 were purchased in 2017, the last year it was available.
What would a C8 be without an easter egg? GM did not disappoint and similar to what was done on the LT6 engine in the Z06, a Gemini rocket can be found here and there on the LT7. Gemini was also the name of the two astronaut space capsule that preceded the Apollo three astronaut capsule.
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