Automotive Engineering - November/December 2021 - 10

TECHNOLOGY REPORT
The 2023
Corvette
Z06 features
a uniquely
trimmed cabin.
Forged Ti connecting
rods ride on the
new LT6's flatplane,
forged-steel
crankshaft. Stroke is an
ultra-short 80mm.
The Brembo-supplied foundation brake system is upgraded
with 6-piston (versus four) front brake calipers, larger 14.6-in.
front rotors and 15.0-in. rear rotors. Included with Z07 and available
standalone are exotic and highly fade-averse carbon-ceramic
brake rotors that are 15.7-in diameter in front and 15.3-in. rear.
The Z06's options list also offers carbon-fiber wheels that shave
over 10 lb. (4.5 kg) of unsprung weight at each corner.
10 November/December 2021
Exterior and interior uniqueness
To house the Z06's meatier rolling stock and to cool its more
powerful engine, unique fenders and fascias were essential.
The new nose cover provides a fifth centrally located radiator
while at the rear, exhaust outlets have been pulled inboard
from the corners. Side-scoop openings are significantly larger
to enhance cooling airflow and overall width is 3.6-in. (9.1-cm)
greater to shroud the rear tires.
Extensive wind tunnel and racetrack development yielded
major aerodynamic gains, engineers noted. The front splitter
is notably larger and the rear spoiler accepts an add-on vertical
tab (called a wickerbill) that adds 365 lb. (166 kg) of
downforce at high speed. The ultimate choice is an optional
package including a larger front splitter, front-corner dive
planes, rear under-car strakes and a huge, adjustable carbonfiber
wing. Those aids raise the net downforce to a remarkable
734 lb. (333 kg) at the Z06's factory-claimed 186 mph
(299 km/h) top speed.
In keeping with an anticipated base price of $85,000, the
Z06 will come lined with finer materials and offered with new
trim choices. There will be seven interior colors coordinated
with the dozen available exterior hues and seven different
wheel packages. Three seat choices will be available plus two
carbon-fiber packages; both the steering wheel and the shift
paddles can be wrapped with that racy-looking material.
Juechter's team invested six years of painstaking effort to
make sure that the Z06 succeeds as a supercar without peer.
With the exotic brands expeditiously vacating this turf in favor
of hybrid and BEV technology, this seems the perfect opportunity
for the Stingray to advance its cause.
Don Sherman
AUTOMOTIVE ENGINEERING
BOTH IMAGES: CHEVROLET

Automotive Engineering - November/December 2021

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