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<< 1989 Twin Turbo Callaway Corvette
1999 Callaway C12 Corvette >>

1990 Twin Turbo Callaway Corvette

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Production Numbers
RPO Description Price Production
1YY07 Base Coupe $31,979 16016
1YY67 Base Convertible $37,264 7,630
B2K Callaway Twin Turbo $26,895 58

From The Corvette Black Book by Michael Antonick:  "For Callaway twin-turbo, Chevrolet engine coding was replaced as follows:  First two digits for year, next three digits for Callaway sequence, last four digits to match last four digits of vehicle identification number."

The following information comes from Sports Car International, April, 1990, page 21:

General
Model: Callaway Corvette Twin Turbo
Vehicle Type: mid-front engine, rear-wheel drive, two passenger, two door coupe
Base Price (option L98 with B2K): $58,540
Options: aero kit, $6,500; automatic transmission, $4,500; solar-coated windshield, $1,050; electric passenger seat, $270; leather seats, $425; automatic air conditioning, $180; premium AM/FM/cass./CD system, $396; low tire pressure warning system, $325; selective ride, $1,695
Body/Chassis: galvanized steel frame, composite body panels
Engine
Configuration: mid-front mounted V8, iron block, aluminum heads, twin turbochargers and intercoolers, rear wheel drive
Displacement: 5,733cc, 350 cid
Bore/Stroke: 101.6 x 88.4 mm
Valvetrain: 2 valves/cyl. chain driven cam in block, pushrods, hydraulic roller lifters
Horsepower: 390 bhp @ 4,250
Torque: 562 lbs. ft. @ 2,500 rpm
Compression: 7.5:1
Fuel System: electronic port injection
Fuel Required: unleaded, premium
Transmission
Type: 6-speed manual
Gear Ratio Speed
1st 2.678 43
2nd 1.804 63
3rd 1.305 88
4th 1.000 114
5th 0.751 150
6th 0.499 172
Dimensions and Capacities
Wheelbase: 96.2 in.
Length: 176.5 in.
Width: 71.0 in.
Height: 46.7 in.
Track, front/rear: 59.6/60.4 in.
Luggage capacity: 17.9 cu. ft.
Curb weight: 3,403 lbs.
Weight dist., % f/r: 52/48.
Fuel capacity: 20.0 gal.
Steering, Suspension, Brakes
Suspension: F:  upper and lower A-arms, transverse composite leaf spring, electrically adjustable shocks, anti-roll bar
R:  upper and lower trailing arms, dual lateral arms, halfshafts, transverse composite leaf spring, electrically adjustable tube shocks, anti-roll bar
Steering type: rack and pinion, power assisted
Turns, lock to lock: 2.25
Turning circle: 40.4 ft.
Brakes: F:  12.9 in. vented discs with ABS
R:  11.9 in. vented discs with ABS
Wheels: cast magnesium, 17 x 9.5 in.
Tires: Goodyear Eagle, P275/40ZR17

Performance Review
Magazine SCI R&T
Pub. Date April, 1990 May 1990
Style Coupe Coupe
0-30 mph (sec.) NA 2.1
0-40 mph (sec.) NA NA
0-50 mph (sec.) NA NA
0-60 mph (sec.) 4.79 5.1
0-70 mph (sec.) NA NA
0-80 mph (sec.) NA 7.9
0-90 mph (sec.) NA NA
0-100 mph (sec.) 10.58 NA
0-110 mph (sec.) NA NA
0-120 mph (sec.) NA NA
0-130 mph (sec.) NA NA
1/4 Mile (sec/mph) 13.11 / 112.0 13.4 / 107.5
Top Speed (mph) 172 mph @ 4,200 rpm 191 (est.)
Braking (ft.) 117 (60 - 0 mph)
212 (80 - 0 mph)
123 (60 - 0 mph)
213 (80 - 0 mph)
Lateral Accel. 0.90 g NA

Note:  All road test data obtained with Datron CORREVIT non-contact test equipment supplied by Datron Technology, Inc.

Magazine Excerpt:
"Both of these Corvettes [ZR-1 and Callaway] are outstanding performers. They're also about the same price. So buyers are left with a decision of which powerplant philosophy they prefer. In my opinion, you can't go wrong either way. The ZR-1 has the new Euro-think aluminum engine, while the Callaway is perhaps the ultimate expression of the American hot-rod ethic. The factory gets the job done with revs, the skunk-works machine does it with sheer torque.
While I'd love to own either of these supercars, my personal preferece is for the Callaway. Now I like a high revving exotic as much as the next guy, but let's face it, torque makes most of the magic things happen. And the Callaway is the torque-master in this contest. The Twin Turbo solution is neat, high tech, unusual, and well executed. While the factory will crank out two to three thousand ZR-1s this year, Callaway will build but 250 Twin Turbos. that exclusivity means something, too. My choice:  support your local hot rodder -- buy a Callaway! - P.A."


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