- \n
- Corvette ZR1 features\u00a0a 5.5L, twin-turbocharged DOHC flat-plane crank V8 engine\u00a0dubbed the LT7.<\/li>\n
- The LT7 engine produces\u00a01,064 horsepower\u00a0at 7,000 rpm and\u00a0828 lb-ft of torque\u00a0at 6,000 rpm, per SAE guidelines \u2014 the\u00a0most power ever\u00a0from a factory Corvette and\u00a0the most powerful V8 ever produced in America\u00a0from an auto manufacturer.<\/li>\n
- Corvette ZR1 boasts a GM-estimated\u00a0top speed of over 215 mph\u00a0on the racetrack and will dispatch the quarter mile with a GM-estimated\u00a0sub-10-second time1.<\/li>\n
- Purposeful carbon fiber aero package creates\u00a0over 1,200 pounds of downforce\u00a0at top speed.<\/li>\n
- ZR1 revives one of the most iconic styles in Corvette history: the\u00a0split rear window.<\/li>\n<\/ul>\n
\u201cThe team that revolutionized Corvette with a mid-engine architecture took on another challenge: take ZR1 to the next level,\u201d said Scott Bell, vice president, Chevrolet. \u201cCorvette ZR1 is about pushing the envelope with raw power and cutting-edge innovation. From Stingray, to Z06, E-Ray, and now ZR1, the Corvette family continues to elevate with each new iteration \u2014 and challenge the best in the world.\u201d<\/p>\n
Pushing the Boundaries of Engine Development<\/h2>\n
ZR1\u2019s 5.5L LT7 twin-turbocharged DOHC V8 engine starts with the same architecture as Z06\u2019s LT6, the most powerful naturally aspirated production V8 engine ever, and takes it to the next level with twin turbochargers \u2014 the first time ever for a factory Corvette.<\/p>\n
![\"Chevrolet](\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\")
<\/p>\nDubbed the \u201cGemini V8\u201d architecture, the LT6 program was only the beginning as engineers dual-pathed a goal: to create massive power, capability and character from naturally aspirated and turbocharged flat plane crankshaft twin engines. With these goals in mind, engineers did not create an LT6 with turbochargers, but instead changed and optimized virtually every system for a boosted application.<\/p>\n
Corvette ZR1\u2019s 5.5L, twin-turbo DOHC flat-plane crank LT7 engine is the result of engineering prowess and pushing the boundaries of what the engine architecture can do. Thoughtful planning produced the best performance from forced induction, married with the 5.5L flat-plane engine architecture.<\/p>\n
Unique to the 5.5L LT7 twin-turbo V8:<\/p>\n
- \n
- Head castings with unique ports and a larger combustion chamber<\/li>\n
- Valve train timing and lift profile optimized for forced induction with higher exhaust temp enabling exhaust valves<\/li>\n
- Completely new intake system tuned for twin turbochargers<\/li>\n
- CNC machined combustion chamber, exhaust and intake ports specific to the LT7<\/li>\n
- Dual, ported shroud, ball bearing, mono-scroll (76 mm) turbochargers integrated with the exhaust manifold to reduce the volume and distance from the exhaust valve to the turbine wheel for quick response with electronic wastegates<\/li>\n
- Intelligent anti-lag engine calibration techniques specifically for ZR1 that adapt and react to driving style<\/li>\n<\/ul>\n
The LT7 engine also builds upon this engine architecture with:<\/p>\n
- \n
- Added block and head machining to support turbo cooling and oiling<\/li>\n
- Counterweight changes to account for a unique piston, and unique connecting rod for the crank train<\/li>\n
- A secondary port fuel injection system added to deliver the needed additional fuel to support the engine\u2019s massive output<\/li>\n<\/ul>\n
To support the dramatic increase in power from the LT7 engine, engineers made numerous changes to the Corvette ZR1\u2019s eight-speed dual-clutch transmission, including:<\/p>\n
- \n
- Inner and outer input shaft upgrades<\/li>\n
- Increased gear capacity with strength increased via shot peening for all gears<\/li>\n
- Final drive refinements<\/li>\n
- Oil management to support increased vehicle longitudinal and lateral capability<\/li>\n
- Increased control valves to accommodate the higher required clutch clamp load for LT7<\/li>\n<\/ul>\n<\/p>\n
The LT7 engine is purpose-built to accomplish its four-figure horsepower mission with no compromises in componentry and maintains the rev-happy character that is the heart of the\u00a0Gemini V8 engine family. It will be hand-assembled by the master engine builders at the Performance Build Center, part of the Bowling Green Assembly Plant in Kentucky.<\/p>\n
Enabling Speed with Ease<\/h2>\n
Purposeful aerodynamics provide the most downforce ever from a Corvette with over 1,200 pounds at top speed.<\/p>\n
The Corvette ZR1 offers speed on tap like no Corvette before it. Two distinct setups, complete with Magnetic Ride dampers, accomplish this. The standard Corvette ZR1 chassis arrives with a sleeker body with lower drag and a small spoiler with customer-adjustable short and tall wickers. It also includes a standard carbon-fiber front splitter, rocker moldings, side intake with integrated brake cooling, and front underwing with stall gurney deflectors. Michelin Pilot Sport 4S tires wrap 20-inch front, and 21-inch rear wheels. The standard chassis blends the best of on-road comfort and track capability with this setup.<\/p>\n
Corvette ZR1 dispatches the world\u2019s toughest tracks with ease, not only with the power from the 5.5L LT7 engine, but also due to additional, specific aerodynamic and cooling changes found throughout the car. These include:<\/p>\n
- \n
- Flow-through hood: Air enters the front grille, flows through the intercooler heat exchanger and exits the hood to\u00a0increase front downforce\u00a0and\u00a0cool charged air temperatures.<\/li>\n
- Carbon fiber side profile air ducts: Clean, cool air is funneled through ducts, which are cleanly integrated into the signature wishbone bezel behind the cabin doors to\u00a0cool the rear brakes\u00a0through an intricately designed system that doesn\u2019t impact rear wheel travel<\/li>\n
- Unique fresh air intake ducts: Carbon fiber inlets located on top of the coupe rear hatch ingest air to\u00a0cool the turbo compressor inlet air temperatures<\/li>\n<\/ul>\n
Corvette ZR1\u2019s optional ZTK performance package unlocks a true track weapon. Notably, the ZTK package adds an aggressive, high-downforce rear wing, front dive planes, and a tall hood Gurney lip \u2013 all constructed from woven carbon fiber. Underneath, underbody strakes replace the standard front underwing stall Gurney to increase front downforce. The suspension tuning included in the ZTK package incorporates stiffer springs and adds Michelin Pilot Sport Cup 2 R tires. Amid testing and development, the ZR1 tackled some the world\u2019s most demanding racetracks, including the N\u00fcrburgring, Road Atlanta, and Virginia International Raceway.<\/p>\n
Carbon Aero, featuring all aerodynamic equipment from the ZTK package, is available on the standard ZR1 chassis as well.<\/p>\n
<\/p>\n\u201cWe went into the ZR1 program with lofty goals, but even our first development tests on-track showed the teams were already exceeding them,\u201d said Tadge Juechter, executive chief engineer, Corvette. \u201cAs we worked to develop this car, we continued to leap past expectations, and we knew we had a special Corvette on our hands.\u201d<\/p>\n
Controlling ZR1\u2019s high performance is a new brake system. The brake package uses a revolutionary carbon ceramic rotor manufacturing technology to yield increased durability and reduced brake component temperatures. Front rotors measure 15.7 inches (400mm) in diameter and rear rotors 15.4 inches (390mm) in diameter \u2014 the front rotors are the largest ever equipped on Corvette. In just 24.5 seconds, the Corvette ZR1 goes from 80-200 mph and back to 80 mph \u2014 22% quicker than the C7 Corvette ZR1, and 53% quicker than the C6 Corvette ZR1.<\/p>\n
Designed for the Split Window\u2019s Return<\/h2>\n
For ZR1, function and form quickly took hold to create an instant icon \u2014 an icon worthy of the historic split window\u2019s return.<\/p>\n
\u201cWe didn\u2019t approach this decision lightly, we know this is a beloved element from Corvette\u2019s history,\u201d said Phil Zak, executive design director, Chevrolet. \u201cNot only does this element provide function, but we were able to integrate passionate design into the form and do it in a way that paid homage to Corvette\u2019s history. ZR1 felt like the right time to bring the split-window back.\u201d<\/p>\n
Last seen on the C2-generation Corvette, and quietly previewed on the Corvette Z06 GT3.R race car, the split-window style capitalizes on the design statement that is Corvette ZR1. While serving as a statement piece, this carbon fiber \u201cspine\u201d between the two rear windows, available in exposed weave or body color, provides increased heat extraction from the engine compartment, working in parallel with numerous other cooling elements throughout ZR1.<\/p>\n
The teams worked to elevate the striking design first revealed with the eighth-generation Corvette Stingray and accentuate lines that evoke the car\u2019s sense of motion \u2014 but the design\u2019s function also helps it perform. Teams looked at every component of Corvette ZR1 to ensure cooling and aerodynamics remained top of mind, and any change accomplished the car\u2019s mission: performance.<\/p>\n
<\/p>\nAdditional changes include:<\/p>\n
- \n
- A carbon fiber roof to reduce mass and lower the center of gravity for both coupe and convertible<\/li>\n
- Unique aluminum wheel design available in four finishes, including Edge Blue \u2014 an homage to ZR1\u2019s signature color cue<\/li>\n
- Optional new carbon-fiber wheel design, exclusive to ZR1, to further reduce mass<\/li>\n
- LT7 engine intake finished in Edge Blue \u2014 delivering an engine that looks as good as it performs<\/li>\n
- Optional new carbon-fiber wheel design, exclusive to ZR1, to\u00a0reduce unsprung mass by 42.8 pounds<\/li>\n<\/ul>\n
The Corvette ZR1\u2019s cockpit dials up the attention to detail, notably with unique ZR1 badging found on an interior plaque, the sill plates and steering wheel. A new finishing stitch pattern for the doors, specific to ZR1, is available on the 3LZ trim. A boost gauge is also present, denoting the first factory turbocharged Corvette in the nameplate\u2019s history.<\/p>\n
Providing further choice to customers, the Corvette ZR1 will provide a roster of customization between exterior and interior colors. Shared with the 2025 Corvette lineup, new colors such as Competition Yellow, Hysteria Purple and Sebring Orange headline updates. The latter recalls a fan-favorite hue from the previous C7-generation Corvette ZR1.<\/p>\n
Inside, a new Habanero interior is available, as is a Blue Stitch option. Various full-length racing stripes, brake caliper colors, including an exclusive blue for the calipers, seat belt colors and more will also be available.<\/p>\n
King of the Hill Coming Next Year<\/h2>\n
Corvette ZR1 will enter production in 2025 and will be built at General Motors\u2019 Bowling Green Assembly Plant in Kentucky. It joins Corvette Stingray, Corvette Z06 and Corvette E-Ray to continue elevating the Corvette family. Further details on price and availability will be shared closer to production.<\/p>\n
Cross flags closers:<\/p>\n
- \n
- On its first lap at the Milford Proving Ground’s MRC test track, the new ZR1 clocked a faster peak speed than the production C7 ZR1.<\/li>\n
- Engineers clocked a sub-10-second quarter-mile time on the Corvette ZR1\u2019s first launch.<\/li>\n
- All four test drivers clocked over 200 mph peak speed on their very first laps at the N\u00fcrburgring with ease.<\/li>\n
- LT7 produces more power than two LS7 engines, the legendary 7.0L V-8 from the sixth-generation Corvette Z06 \u2013 akin to one LS7 engine per bank.<\/li>\n<\/ul>\n<\/p>\n
Gallery: 2025 Chevrolet Corvette ZR1<\/h2>\n
\n\t\t\t \n\t\t\t\t<\/a>\n\t\t\t<\/div><\/figure>\n\t\t\t \n\t\t\t\t<\/a>\n\t\t\t<\/div><\/figure>\n\t\t\t \n\t\t\t\t<\/a>\n\t\t\t<\/div><\/figure>\n\t\t\t \n\t\t\t\t<\/a>\n\t\t\t<\/div><\/figure>\n\t\t\t \n\t\t\t\t<\/a>\n\t\t\t<\/div><\/figure>\n\t\t\t \n\t\t\t\t<\/a>\n\t\t\t<\/div><\/figure>\n\t\t\t \n\t\t\t\t<\/a>\n\t\t\t<\/div><\/figure>\n\t\t\t \n\t\t\t\t<\/a>\n\t\t\t<\/div><\/figure>\n\t\t\t \n\t\t\t\t<\/a>\n\t\t\t<\/div><\/figure>\n\t\t\t \n\t\t\t\t<\/a>\n\t\t\t<\/div><\/figure>\n\t\t\t \n\t\t\t\t<\/a>\n\t\t\t<\/div><\/figure>\n\t\t\t \n\t\t\t\t<\/a>\n\t\t\t<\/div><\/figure>\n\t\t\t
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