The new C8 Corvette ZR1 is a true performance powerhouse, throwing down with 1,064 horsepower (possibly more) thanks to the 24 PSI twin-turbocharged 5.5L V8 LT7 gasoline engine. Essentially a boosted variant of the 5.5L V8 LT6 that powers the C8 Corvette Z06, the LT7 incorporates a pair of BorgWarner turbos to elevate output to that mind-boggling four-figure number just mentioned.
In fact, the ZR1’s twin BorgWarner boost-makers are the largest passenger car twin turbochargers on the market.
Each of the C8 ZR1 turbos incorporates a 76mm forged milled compressor wheel and ported shroud, plus a 67mm turbine wheel mounted inside a mono scroll turbine housing. The turbos also include an integrated exhaust manifold with equal length runners, a compressor-mounted blade pass speed sensor, and a decoupled ball bearing system for quicker response, reduced noise, and increased durability.
Other highlights include a zero-clearance heat shield and turbine housing for improved thermal efficiency and lower engine compartment temperatures, as well as an electronically actuated wastegate. The turbos are designed and manufactured in the U.S. Interestingly, the turbos also include a small Gemini rocket insignia as a nod to GM’s involvement in the NASA Gemini missions during the ‘60s.
Vice President of BorgWarner Inc. and President and General Manager, Turbos and Thermal Technologies, Dr. Volker Weng, commented on GM’s decision to tap BorgWarner for the new C8 Corvette ZR1.
“We are proud to secure this contract and support General Motors in making the most powerful Corvette ever built.
This technology has been in the works for some time now, and to see it come to fruition is both exciting and fulfilling,” Dr. Weng said.
“BorgWarner and General Motors have a long history of producing market-leading applications across a wide range of segments, and we look forward to continuing to develop new technologies and push industry boundaries together.”
