Auto News Special

2015 Chevrolet Corvette Z06

The new Corvette Z06 and Z07

Just the picture alone is enough to raise the blood pressure of any true car buff. So let’s start the week with a look at the Corvette Z06. From all indications, it is the best Corvette ever.

The yellow monster packs the brand’s first supercharged engine, an eight-speed paddle shift automatic transmission with manual shifting mode, and incredible handling.

Think 6.2 liter V8 with 650 horsepower at 6,400 rpm with a whopping 650 lb-ft of torque at just 3,600 rpm making the Z06 the most powerful production car ever from General Motors. The supercharger fits neatly in the V of the V8 and increases the height of the engine by just one inch.

Hold on to your morning Frosted Flakes because here are the numbers, and they don’t lie.

0-60 3.0 seconds

0-100 6.8 seconds

And a top track speed of almost 190 mph

Automobile Magazine put the handling at 1.2 g’s. And that puts the yellow monster up there with virtually anything else on the road from Europe and Japan, and for thousands less than some comparable performance cars.

In addition to that big V8, two other things are important to produce that kind of handling – tires and downforce. The P285/30ZR19 front tires are 1.5 inches wider than the tires on the Stingray, while the 335/25RZ20 rear tires are two inches wider. That forced engineers to widen the fenders of the Z06 2.2 inches at the front and 3.14 inches at the rear and the taillights are about three inches farther apart.

To increase downforce to give those big tires a chance at some extra grip, the Z06 features an available carbon fiber aero package. This brings a front splitter with aviation style winglets, carbon fiber rocker panels, and a larger rear spoiler. Move up to the Z07 package, and those winglets get bigger along with an adjustable, see-through center section on the rear spoiler for track use. GM proclaims this will deliver the most aerodynamic downforce of any production car it has tested. Those who have taken it out on the track say the downforce is truly there.

Brembo carbon ceramic-matrix brake rotors come with the Z07 package as well and they save 23 pounds over the standard Z06 rotors.

Another neat touch – the design is such that no structural reinforcements were need for the Z06 convertible, the first time that model has been offered since 1963.

“It required advancements in computer-aided engineering, metallurgy and manufacturing – many of which did not exist five years ago – to make the frame strong enough for a Z06 convertible,” said Chief Engineer Tadge Juechter.

Out on the track the car will give you a report card of your driving skills via a Performance Data Recorder that provides a high definition video with telemetry overlays. There is also an SD-card slot in the glove box for recording and transferring video and vehicle data that one day could show the grandkids just how cool a guy granddad is.

Corvette Z06 concept parts for Stingray

Inside, there is a flat bottomed steering wheel, and your choice of seats. A GT and a Competition Sport seat for with greater side bolstering. Both are offered with various trim levels that include Napa leather surfaces. And, course, there are options for carbon fiber, micro-suede and aluminum trim. It should be noted there is a steel-reinforced grab bar on the center console for the passenger.

Prices start at $78,995 for the Z06 coupe and $83,995 for the convertible. Add $7,995 for the Z07 performance package. Well optioned models that I have seen end up in $90K plus department.

Here are some specs from GM:

Engine

LT4 6.2L supercharged V-8
Displacement (cu in / cc): 376 / 6162
Bore & stroke (in / mm): 4.06 x 3.62 / 103.25 x 92
Block material: cast aluminum
Cylinder head material: cast aluminum
Valvetrain: overhead valve, two valves per cylinder
Fuel delivery: direct injection
Lubrication system: dry sump
Compression ratio: 10:1
Horsepower (hp / kW @ rpm): 650 / 485 @ 6400 – SAE certified
Torque (lb-ft / Nm @ rpm): 650/ 881 @ 3600 – SAE certified
Max. engine speed (rpm): 6600
Recommended fuel: premium required
GM-estimated fuel economy TBD

 

Transmissions

Type: Seven-speed manual with Active Rev Match Paddle-shift eight-speed, electronically controlled automatic overdrive with torque converter clutch
Gear ratios (:1)
     First: 2.29 4.56
     Second: 1.61 2.97
     Third: 1.21 2.08
     Fourth: 1.00 1.69
     Fifth: 0.82 1.27
     Sixth: 0.68 1.00
     Seventh: 0.45 0.85
     Eighth: 0.65
     Reverse: 2.70 3.82
Final drive ratio: 3.42 2.41

 

Chassis / Suspension

Front: short/long arm (SLA) double wishbone, cast aluminum upper and lower control arms, transverse-mounted composite spring, monotube shock absorber
Rear: short/long arm (SLA) double wishbone, cast aluminum upper and lower control arms, transverse-mounted composite spring, monotube shock absorber
Active handling: Magnetic Selective Ride Control
Traction control: StabiliTrak electronic stability control
Steering type: variable-ratio rack-and-pinion with electric power assist
Steering gear ratio: 12.0 to 16.4
Turns lock to lock 2.53
Turning circle, curb to curb

(ft / m):

37.7 / 11.5

 

Brakes

Type: front and rear power-assisted discs with two-piece steel rotors; fixed six-piston aluminum front calipers and fixed four-piston aluminum rear calipers; carbon ceramic matrix rotors with Z07 pkg.
Rotor diameter (in / mm): front – Z06 : 14.6 / 371

front – Z06 w/Z07: 15.5 / 394 rear – Z06: 14.4 / 365

rear – Z06 w/Z07: 15.3 / 388

Rotor thickness (in / mm): front – Z06 : 1.3 / 33

front – Z06 w/Z07: 1.4 / 36 rear – Z06: 1 / 25

rear – Z06 w/Z07: 1.3 / 33

 

Wheels / Tires

Wheel size: front: 19-inch x 10-inch

rear: 20-inch x 12-inch

Tires: Michelin Pilot Super Sport run-flat (Z06)

Michelin Pilot Sport Cup 2 (Z07)

front: P285/30ZR19

rear: P335/25ZR20

 

Dimensions

Exterior

Wheelbase (in / mm): 106.7 / 2710
Overall length (in / mm): 176.9 / 4493
Overall width (in / mm): 77.1 / 1957
Overall height (in / mm): 48.6 / 1235 (coupe)

48.6 / 1235 (convertible)

Track (in / mm): 63 / 1600 (front)

61.7 / 1567 (rear)

Curb weight (lb / kg): 3524 / 1598 (coupe)

3582 / 1625 (convertible)

Weight distribution

(% front / rear):

50 / 50

 

Interior

Seating capacity 2
Headroom (in / mm): 38 / 962
Leg room (in / mm): 43 / 1092
Shoulder room (in / mm): 55 / 1397
Hip room (in / mm): 54 / 1371

 

Capacities

Interior volume (cu ft / L): 52 / 1475
Cargo volume (cu ft / L): Coupe: 15 / 425

Convertible: 10 / 283

Fuel capacity (gal / L): 18.5 / 70
Engine oil (qt / L): 9.75 / 9.2
Engine cooling system

(qt / L):

11.3 / 10.7


 

 

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