This Super Speedster is one of only three cars equipped with the turbocharged LT5, the same engine which powered the Callaway Sledgehammer Corvette to 254.76 mph.
Also known as the Series II, only two Speedsters came equipped with the turbocharged LT5, and this is the only one wearing the Paul Deutschman-designed AeroBody.
To accommodate the intercoolers, Callaway’s AeroBody was slightly modified with twin intakes which replaced the four seen on the earlier Speedsters. The bodies retained their wrap-around, low profile windows and sleek look which was unburdened by aerodynamic devices.
Unlike the earlier Series 1 speedsters, the Super Speedster is based on the Corvette ZR1 and a 750 bhp twin turbo LT5. This uses new engine management, fuel injection, exhaust, headers and catalytic converters to achieve over 750 bhp.
This Super Speedster was painted in Cherry Smash with My Favorite Blue leather interior. At the time of writing is completely original with only 13,174 on the odometer.
Story by Mecum Auction, Inc.
In Detail
| type | One Of |
| built at | Old Lyme, Connecticut, USA |
| body stylist | Paul Deutschman |
| production | 1 |
| engine | SuperNatural LT5 V8 |
| position | Front, Longitudinal |
| aspiration | Twin Turbos |
| valvetrain | OHV 2 Valves per Cyl |
| fuel feed | Mulitpoint Fuel Injection |
| displacement | 5735 cc / 350 in³ |
| bore | 101.6 mm / 4.00 in |
| stroke | 88.4 mm / 3.48 in |
| compression | 8.45:1 |
| power | 559.3 kw / 750 bhp |
| specific output | 130.78 bhp per litre |
| bhp/weight | 468.75 bhp per tonne |
| body / frame | Composite Boby Panels over Steel Frame |
| driven wheels | RWD w/Limited Slip |
| wheel type | OZ Racing Alloy |
| front tires | P345/35ZR-18 Bridgestone Expedia |
| rear tires | P345/35ZR-18 Bridgestone Expedia |
| front brakes | Drilled Vented Discs Brembo Indy Billet |
| rear brakes | Drilled Vented Discs Brembo Indy Billet |
| front wheels | F 45.7 x 25.4 cm / 18 x 10 in |
| rear wheels | R 45.7 x 34.3 cm / 18 x 13.5 in |
| steering | Rack & Pinion w/Power Assist |
| f suspension | Unequal A-Arms w/Transverse Leaf Springs, Dampers, Anti-Roll Bar |
| r suspension | Upper & Lower Trailing Arms w/Transverse Leaf Srpings, Dampers, Anti-Roll Bar |
| curb weight | 1600 kg / 3527 lbs |
| wheelbase | 2443 mm / 96.2 in |
| front track | 1514 mm / 59.6 in |
| rear track | 1534 mm / 60.4 in |
| length | 4480 mm / 179.8 in |
| width | 1803 mm / 71 in |
| height | 1041 mm / 41 in |
| transmission | ZF 6-Speed Manual |
| gear ratios | 2.68:1, 1.30:1, 1.00:1, 0.75:1, 0.50:1 |
Auction Sales History
1990 Callaway Super Speedster Series II – did not sell for $185,000 1 of 12 Speedsters produced. 1 of 3 Callaway Twin Turbo LT5 engines. Built using a 1990 ZR1. The first of only 2 series II Super Speedsters. Cherry Smash paint with My Favorite. Blue interior make this a truly unique vehicle and the only one without LM body work. 13,174 actual miles.Auction Source: Kissimmee 2014, #WhereTheCarsAre by Mecum
ncG1vNJzZmivp6x7tMHPnqmcmaKoe6%2Bx02iZpaeXZH56hY9mmpqknJbEosWMnKarrpWpwaZ50q6nnqpdqL2mscOsq56qXw%3D%3D