{"id":168453,"date":"2016-03-26T17:57:56","date_gmt":"2016-03-26T17:57:56","guid":{"rendered":"http:\/\/blog.supercars.net\/blog\/?p=168453"},"modified":"2024-08-21T17:48:40","modified_gmt":"2024-08-21T17:48:40","slug":"1988-callaway-sledgehammer-corvette","status":"publish","type":"post","link":"https:\/\/www.supercars.net\/blog\/1988-callaway-sledgehammer-corvette\/","title":{"rendered":"1988 Callaway Sledgehammer Corvette"},"content":{"rendered":"

1988 Callaway Sledgehammer Corvette<\/h1>\n
\n

This Sledgehammer reached 254.76 mph at the Transportation Research Center (TRC) in Ohio and became the world’s fastest street-legal car for some time. <\/span><\/p>\n

It was built up by Reeves Callaway in Connecticut as an example of what was possible with the new ZR1 and and turbocharging its LT5 engine.<\/p>\n

The result was a 898 bhp coupe that still retained luxuries such as air conditioning and a radio.<\/p>\n

Callaway achieved this power by using a NASCAR-spec block with Mahle pistons and forged connecting rods. The top end included a Brodix aluminum head which was fed by twin Turbonetics T04B turbochargers.<\/p>\n

The suspension was addressed by Carroll Smith who lowered the entire car one inch and fitting 17-inch Dymag aluminum wheels with specially-made Goodyear tires.<\/p>\n

On October 26, 1988 at 3:45PM John Lingenfelter drove the Sledgehammer to its record speed of 254.76 mph on the 7.5 mile oval track at the Transportation Research Center (TRC) in Ohio.<\/p>\n

Story by Richard Michael Owen<\/p>\n

1988 Callaway Sledgehammer Corvette Gallery<\/a><\/h2>\n

1988 Callaway Sledgehammer Corvette Gallery<\/a><\/p>\n

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In Detail<\/h3>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
type<\/td>\nOne Of<\/td>\n<\/tr>\n
built at<\/td>\nOld Lyme, Connecticut, USA<\/td>\n<\/tr>\n
production<\/td>\n1<\/td>\n<\/tr>\n
price $<\/td>\n$ 400,000<\/td>\n<\/tr>\n
engine<\/td>\nTwin Turbo V8<\/td>\n<\/tr>\n
displacement<\/td>\n5733 cc \/ 349.8 in\u00b3<\/td>\n<\/tr>\n
bore<\/td>\n101.6 mm \/ 4.0 in<\/td>\n<\/tr>\n
stroke<\/td>\n88.4 mm \/ 3.48 in<\/td>\n<\/tr>\n
compression<\/td>\n7.5:1<\/td>\n<\/tr>\n
power<\/td>\n669.6 kw \/ 898 bhp @ 6250 rpm<\/td>\n<\/tr>\n
specific output<\/td>\n156.64 bhp per litre<\/td>\n<\/tr>\n
bhp\/weight<\/td>\n565.14 bhp per tonne<\/td>\n<\/tr>\n
torque<\/td>\n1046.7 nm \/ 772 ft lbs<\/td>\n<\/tr>\n
driven wheels<\/td>\nFront Engine \/ RWD<\/td>\n<\/tr>\n
front tires<\/td>\n275\/40ZR-17<\/td>\n<\/tr>\n
rear tires<\/td>\n275\/40ZR-17<\/td>\n<\/tr>\n
front brakes<\/td>\nVented Discs w\/Vacuum Assist & ABS<\/td>\n<\/tr>\n
front wheels<\/td>\nF 43.2 x 24.1 cm \/ 17.0 x 9.5 in<\/td>\n<\/tr>\n
rear wheels<\/td>\nR 43.2 x 24.1 cm \/ 17.0 x 9.5 in<\/td>\n<\/tr>\n
steering<\/td>\nRack & Pinion w\/Power Assist<\/td>\n<\/tr>\n
curb weight<\/td>\n1589 kg \/ -1.0 lbs<\/td>\n<\/tr>\n
wheelbase<\/td>\n2443 mm \/ 96.2 in<\/td>\n<\/tr>\n
front track<\/td>\n1514 mm \/ 59.6 in<\/td>\n<\/tr>\n
rear track<\/td>\n1534 mm \/ 60.4 in<\/td>\n<\/tr>\n
length<\/td>\n4483 mm \/ 176.5 in<\/td>\n<\/tr>\n
width<\/td>\n1803 mm \/ 71.0 in<\/td>\n<\/tr>\n
height<\/td>\n1186 mm \/ 46.7 in<\/td>\n<\/tr>\n
transmission<\/td>\n6-Speed Manual<\/td>\n<\/tr>\n
final drive<\/td>\n3.54:1<\/td>\n<\/tr>\n
top speed<\/td>\n~409.9 kph \/ 254.7 mph<\/td>\n<\/tr>\n
0 – 60 mph<\/td>\n~3.9 seconds<\/td>\n<\/tr>\n
0 – 1\/4 mile<\/td>\n~10.6 seconds<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Auction Sales History<\/h4>\n

\"1988_Callaway_SledgehammerCorvette-1-1536\"<\/a><\/p>\n<\/div>\n

1988 Chevrolet Corvette Callaway Sledgehammer 1G1YY2180J5109700<\/a> – did not sell for $600,000<\/b> The Sledge Hammer was built to exceed all top speed records as the showcase for Callaway’s Turbo technology. On October 26, 1988 at 3:45PM John Lingenfelter drove the Sledgehammer to its record speed of 254.76 MPH. The Sledgehammer was driven from Callaway in Old Lyme, CT to the Transportation Research Center in Ohio for its record run. Hand built engine by Callaway using a 4-bolt main bowtie block rating up to 898 HP and 772 ft\/lbs of torque.\u00a0Auction Source: <\/b>Kissimmee 2014, #WhereTheCarsAre by Mecum<\/a><\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

1988 Callaway Sledgehammer Corvette This Sledgehammer reached 254.76 mph at the Transportation Research Center (TRC) in Ohio and became the world’s fastest street-legal car for some time. It was built up by Reeves Callaway in Connecticut as an example of what was possible with the new ZR1 and and turbocharging its LT5 engine. The result was a 898 bhp coupe that still retained luxuries such as air conditioning and a radio. Callaway achieved this power by using a NASCAR-spec block […]<\/p>\n","protected":false},"author":2,"featured_media":168460,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2188,1369,658,9348,17406],"tags":[2272,6834,1370,1371,6453,660,1544,1388,367,6524,6888,19800,13061,17407,40],"class_list":["post-168453","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-1980s","category-callaway","category-chevrolet","category-guides","category-model-guides-tuner","tag-1980s","tag-1980s-cars","tag-callaway","tag-callaway-corvette","tag-callaway-model-in-depth","tag-chevrolet","tag-tuned-chevy","tag-chevrolet-corvette","tag-tuned-corvette","tag-chevrolet-model-in-depth","tag-chevrolet-corvette-in-depth","tag-chevrolet-model-guides-tuner-cars","tag-car-profiles","tag-model-guides-tuner","tag-professionally-tuned-car"],"yoast_head":"\n1988 Callaway Sledgehammer Corvette<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.supercars.net\/blog\/1988-callaway-sledgehammer-corvette\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"1988 Callaway Sledgehammer Corvette\" \/>\n<meta property=\"og:description\" content=\"1988 Callaway Sledgehammer Corvette This Sledgehammer reached 254.76 mph at the Transportation Research Center (TRC) in Ohio and became the world’s fastest street-legal car for some time. 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