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General
Make :
Callaway
Base price :
$400,000
Model :
1988 Sledgehammer Corvette
Production :
1
Powertain layout :
Front Engine / RWD
Origin
USA
Dimensions
Wheelbase :
2443 mm / 96.2 in
Width :
1803 mm / 71.0 in
Length :
4483 mm / 176.5 in
Weight :
1589 kg / 3502 lbs
Height :
1186 mm / 46.7 in
Front Track :
1514 mm / 59.6 in
Ground clearance :
N/A
Rear Track :
1534 mm / 60.4 in
Engine
Configuration :
Twin Turbo V8
Bore :
101.6 mm / 4.0 in
Valvetrain :
N/A
Stroke :
88.4 mm / 3.48 in
Displacement :
5733 cc / 349.8 cu in
Compression Ratio :
7.5:1
Power :
656.2 kw / 880.0 bhp @ 6250 rpm
BHP / Liter :
153.5 bhp per litre
Torque :
N/A
Redline :
N/A
Transmission
Gear type :
6-Speed Manual
5th gear ratio :
N/A
1st gear ratio :
N/A
6th gear ratio :
N/A
2nd gear ratio :
N/A
7th gear ratio :
-
3rd gear ratio :
N/A
Reverse ratio :
N/A
4th gear ratio :
N/A
Final drive ratio :
3.54:1
Chassis & body
Body / Frame :
Fibreglass Body over Steel Frame
Brake types :
Vented Discs w/Vacuum Assist & ABS
Steering :
Rack & Pinion w/Power Assist
Front brake size :
328 mm / 12.9 in
Front tires :
275/40ZR-17
Rear brake size :
302 mm / 11.9 in
Rear tires :
275/40ZR-17
Performance
Top speed :
409.9 kph / 254.7 mph
60-0 braking :
N/A
0-60 mph :
3.9 seconds
Lateral Acceleration :
N/A
0-100 mph :
N/A
EPA city / Hwy :
N/A
0-ΒΌ mile :
10.6 seconds
Article:
Top speed set Oct 19, 1989 reaching 254.76 mph.The car was driven by John Lingenfelter.
Only 1 of these cars exists, although, at thetime Callway said they could reproduce it for400 000 USD.
The SledgeHammer Callaway Twin Turbo Corvette was the first automobile to demonstrate that top speed and full road car function are not mutually exclusive quanities. Fully equipped with leather interior, multi-speaker stereo and working air conditioning, it was clocked at 254.76 mph at Ohio's Transportation Reasearch Center on October 26, 1988, then driven back to Callaway's Old Lyme, Connecticut shops on state highways. The 350cid V8 makes 880 brake horsepower at 6,250 rpm and 772 lb-ft torque at 5,250 rpm yet is tractable, smooth and quiet. Featured in virtually every major enthusiast magazine worldwide, SledgeHammer is a unique engineering and packaging accomplishment, beautifully built by the dedicated engineers and craftsmen at Callaway, breathtakingly fast and sumptuously luxurious
