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1988 Twin Turbo Callaway Corvette >>

1987 Twin Turbo Callaway Corvette

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Production Numbers
RPO Description Price< Production
1YY07 Base Coupe $27,999 20,007
1YY67 Base Convertible $33,172 10,625
B2K Callaway Twin Turbo $19,995 184

From The Corvette Black Book by Michael Antonick:  "The Callaway Twin-Turbo engine package introduced in 1987 was not a factory-installed option, but could be ordered through participating Cherolet dealers as RPO B2K. Fully assembled Corvettes were shipped from the Bowling Green Corvette plant to Callaway Engineering in Old Lyme, Connecticut, for engine and other modifications. The 1987 Callaway had ratings of 345hp and 465 lb.-ft torque, and reached a top speed of 177.9 mph with .60 overdrive gearing. The first four 1987 Callaways used replacement LF5 (truck) shortblocks, but subsequent cars had rewored production Corvette engines. All 1987 Callaways had manual transmissions and none were certified for California sale. Of 184 twin-turbos built in 1987, 121 were coupes, 63 were convertibles."

The following information comes from Car and Driver, November, 1986:

Model: Callaway Corvette Twin Turbo
Vehicle Type: front engine, rear-wheel drive, two passenger, two door coupe
Base Callaway Corvette Price: $47,400
Price As Tested: $52,585
Options: Dymag wheels, $2995; sound system $905; power driver's seat, $240; custom feature package(includes rear defroster, heated outside mirrors and light group), $195; power locks, $190; cruise control, $185; freight, $475
Standard accessories: power steering and windows, A/C, tilt steering
Sound system: Delco-GM/Bose AM/FM-stereo radio/cassette, 4 speakers
Type: turbocharged and intercooled V-8, iron block and aluminum heads
Bore/Stroke: 4.00 x 3.48 in., 101.6 x 88.4 mm
Displacement: 5,733cc, 350 cu. in.
Compression: 7.5:1
Engine-control system: GM/Chevrolet electronic engine control system with port fuel injection and Callaway Micro-Fueler
Emissions controls: 3-way catalytic converter, feedback fuel-air-ratio control, EGR, auxilliary air pump
Turbochargers: 2 Warner-Ishi RHB 52W
Waste gate: integral
Maximum boost pressure: 10.0 psi
Valve gear: pushrods, hydraulic lifters
Horsepower: 345 bhp @ 4,000 rpm
Torque: 465 lbs. ft. @ 2,800 rpm
Redline: 5,500 rpm
Type: 4-speed with electronic overdrive
Gear Ratio MPH/1000 rpm Max test speed
1st 2.88 8.5 47 mph (5500 rpm)
1st O.D. 1.73 14.1 42 mph (3000 rpm)
2nd 1.91 12.8 70 mph (5500 rpm)
2nd O.D. 1.15 21.3 117 mph (5500 rpm)
3rd 1.33 18.3 101 mph (5500 rpm)
3rd O.D. 0.80 30.5 122 mph (4000 rpm)
4th 1.00 24.4 122 mph (5000 rpm)
4th O.D. 0.60 40.6 161 mph (3950 rpm)
Dimensions and Capacities
Wheelbase: 96.0 in.
Track, front/rear: 59.6/60.4 in.
Length: 176.0 in.
Width: 71.0 in.
Height: 46.0 in.
Frontal area: 19.1 sq. ft.
Ground Clearance: 4.4 in.
Curb weight: 3,304 lbs.
Weight dist., % f/r: 51.5/48.5
Fuel capacity: 20.0 gal.
Oil capacity: 4.5 qt.
Water capacity: 14.6 qt.
Type: full-length frame integral with body cage structure
Body material: fiberglass reinforced plastic.
Steering, Suspension, Brakes
Suspension: F:  ind., unequal-length control arms, fiberglass reinforced plastic leaf spring, anti-roll bar
R:  ind., fixed-length half-shafts, 2 lateral links and 2 trailing links per side, fiberglass reinforced plastic leaf spring, anti-roll bar
Steering type: rack and pinion, power assisted
Turns, lock to lock: 2.5
Turning circle: 40.1 ft.
Brakes: F:  11.5 x 0.8 in. vented discs with vacuum assisted ABS
R:  11.5 x 0.8 in. vented discs with vacuum assisted ABS
Wheels: cast magnesium, 16 x 9.5 in.
Tires: Goodyear Eagle VR50, P255/50VR-16
Test inflation pressures, F/R: 35/35 psi

Performance Review
Magazine C&D R&T
Pub. Date Nov. 1986 Oct. 1986
Style Coupe Coupe
Transmission 4-speed manual w/ O.D.
0-30 mph (sec.) 1.9 2.4
0-40 mph (sec.) 2.6 NA
0-50 mph (sec.) 3.7 3.8
0-60 mph (sec.) 4.7 5.0
0-70 mph (sec.) 6.3 6.5
0-80 mph (sec.) 7.6 8.1
0-90 mph (sec.) 9.8 NA
0-100 mph (sec.) 11.6 12.4
0-110 mph (sec.) 14.0 NA
0-120 mph (sec.) 19.2 NA
Top-gear passing time 30-50 mph:  9.2 sec.
50-70 mph:  4.0 sec.
1/4 Mile (sec/mph) 13.2 / 108 13.7 / 104
Top Speed (mph) 161 NA
Braking (ft.) 170 (70 - 0 mph) 133 (60 - 0 mph)
2433 (80 - 0 mph)
Lateral Accel. 0.84 g 0.91 g
Fuel Economy EPA city driving:  17 mpg
EPA highway driving:  24 mpg
C/D observed fuel economy:  13 mpg
Normal Driving:  19.0 mpg
Interior sound level Idle:  63 dBA
Full-throttle acceleration:  82dBA
70-mph crusing:  78 dBA
70-mph coasting:  75 dBA
C&D:  Car and Driver,  R&T:  Road and Track

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