Difference between revisions of "Callaway Sledgehammer Corvette"

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[[Image:Corvette C6R Road America 3.jpg|thumb|right|175px|A [[Chevrolet Corvette C6.R]].]]
===SledgeHammer Corvette===
[[Image:Cadillac CTS-V SWC.jpg|thumb|right|175px|A [[Cadillac CTS-V]].]]
{{Infobox Automobile
[[Image:TRG GTO.jpg|thumb|right|175px|A [[Pontiac GTO]].R.]]
| image =
'''Pratt & Miller Engineering and Fabrication''' is a company formed by Gary Pratt and Jim Miller in 1989.
| name =Callaway SledgeHammer Corvette
| manufacturer =
| parent_company =
| aka =
| production =
| assembly =
| predecessor =
| successor =
| class =modified car
| body_style =[[coupé]]
| layout =[[FR layout]]
| platform =
| engine =5733 cc / 349.8 cu in V8 Twin Turbo<br>Dual Bosch fuel pumps feed the system
| transmission =6 Speed Manual
| wheelbase =2443 mm / 96.2 in
| length =4483 mm / 176.5 in
| width =1803 mm / 70.9 in  
| height =1186 mm / 46.7 in
| weight =1589 kg / 3503 lb
| fuel_capacity =
| electric_range =
| related =
| designer =Paul Deutschman
}}


Based out of [[New Hudson]], [[Michigan]], they have been one of [[General Motors]] official [[auto racing|racing]] teams since 1999 when they were key in the development of the [[Chevrolet Corvette C5-R]].  Today, Pratt & Miller constructs, maintains, and runs the [[American Le Mans Series]] [[Chevrolet Corvette|Corvette]] Racing team with [[Chevrolet Corvette C6.R]]s as well as the [[Speed World Challenge]] Team [[Cadillac]] [[Cadillac CTS-V|CTS-V]]s. The company also builds and maintains the [[Pontiac GTO]].Rs and [[Pontiac G6|Pontiac GXP.R]]s for various teams in the [[Rolex Sports Car Series]]. The company also did work on the development of the [[Qvale Mangusta]] and [[Ford GT]].
After the [[Car and Driver]] test event, which Callaway drove a specially modified Callaway Twin Turbo Corvette (C4), known as the "Top Gun" project to the best of {{Auto mph|231|0}}, winning the test run. A production Callaway managed a best of, {{Auto mph|187.95|2}}.<ref name=cog>[http://www.callawayownersgroup.com/COTM/2003November/cotm.htm Callaway Owners Group:Callaway Of the Month Nov/Dec '03]</ref>


Since their alliance with General Motors, Pratt & Miller have won numerous championships and famous racing events.  Corvette Racing has won their class at the [[24 Hours of Le Mans]] five times, claimed the overall victory at the [[24 Hours of Daytona]] in 2001, and won seven straight American Le Mans Series championships.  Team Cadillac won the 2005 Speed World Challenge in the team's debut season, while [[The Racer's Group]], running Pratt & Miller-built Pontiac GTO.Rs, won the [[Rolex Sports Car Series]] championship in 2006.  GM Racing's tuned LS7.R small-block engine was also named the 2006 Global Motorsport Engine of the Year.
As Callaway wanted to take the record further into {{Auto mph|250|0}} with the car being docile during traffic, he developed the SledgeHammer Corvette, to allow airflow into the engine, he commissioned Paul Deutschman of Deutschman Design to develop the Callaway Aerobody for stability.<ref name=deutsch>[http://www.deutschmandesign.com/english/corvette.htm Deutschman Design]</ref> The engine was extensively hand built with its turbo intercoolers being relocated from either side of the intake manifold to the front, behind the bumper. Overall engine power was rated at 898 horsepower @ 6200 rpm with {{Auto ftlbf|772}} of torque @ 5250 rpm.<ref name=cog /> The car retained its road car amenities such as [[power window]]s and [[power door locks|locks]], [[Bose Corporation|Bose]] radio, electronic [[air conditioning]] and, [[power seat|power sport seat]]s with all necessary race car modifications such as [[roll cage]].<ref name=cog />


Pratt & Miller developed a road-going [[car tuning|tuned]] version of the [[Chevrolet Corvette C6]] named C6RS.
Driven by [[John Lingenfelter]], the car reached {{Auto mph|254.76|2}} mph at the [[Transportation Research Center]], [[Ohio]] and was driven back to Old Lyme.<ref name=cog />


==External links==
The Aerobody would become commercially available this would become the first of the partnerships with Deutschman, in which he also designed its later models such as Speedster, SuperNatural, C7, C12 and C16.<ref name=deutsch/>
* [http://prattmiller.com/ Pratt & Miller Engineering and Fabrication]
 
* [http://www.corvetteracing.com/ Corvette Racing]
====Performance Stats====
* [http://www.cadillac.com/cadillacjsp/spotlight/teamcadillac/index.jsp Team Cadillac]
* Horsepower: 898 bhp / 669.6 kW @6200 rpm
* [http://www.pontiac.com/divisional/newsevents/news_motorsports.jsp Pontiac Motorsport]
* Torque: 772.2&nbsp;ft·lbf / 1047.0 Nm @6200 rpm
* BHP/Liter:  157.54 bhp/Liter
* Power to weight ratio:  0.565 bhp/kg
* Top Speed: 254.8&nbsp;mph / 409.9&nbsp;km/h
* 0 - 60&nbsp;mph acceleration: 3.9 seconds
* 1/4&nbsp;Mile:  10.6 seconds


{{autoracing-stub}}


[[Category:Companies established in 1989]]
[[Category:American auto racing teams]]
[[Category:General Motors]]
[[Category:Chevrolet Corvette]]
[[Category:Chevrolet Corvette]]
[[Category:24 Hours of Le Mans entrants]]
[[Category:American Le Mans Series teams]]

Latest revision as of 17:40, 3 February 2009

SledgeHammer Corvette

Callaway SledgeHammer Corvette
Classmodified car
Body style(s)coupé
LayoutFR layout
Engine(s)5733 cc / 349.8 cu in V8 Twin Turbo
Dual Bosch fuel pumps feed the system
Transmission(s)6 Speed Manual
Wheelbase2443 mm / 96.2 in
Length4483 mm / 176.5 in
Width1803 mm / 70.9 in
Height1186 mm / 46.7 in
Curb weight1589 kg / 3503 lb
DesignerPaul Deutschman
ManualsService Manual

After the Car and Driver test event, which Callaway drove a specially modified Callaway Twin Turbo Corvette (C4), known as the "Top Gun" project to the best of 231 mph (372 km/h), winning the test run. A production Callaway managed a best of, 187.95 mph (302.48 km/h).[1]

As Callaway wanted to take the record further into 250 mph (402 km/h) with the car being docile during traffic, he developed the SledgeHammer Corvette, to allow airflow into the engine, he commissioned Paul Deutschman of Deutschman Design to develop the Callaway Aerobody for stability.[2] The engine was extensively hand built with its turbo intercoolers being relocated from either side of the intake manifold to the front, behind the bumper. Overall engine power was rated at 898 horsepower @ 6200 rpm with 772 lb·ft (1,047 N·m) of torque @ 5250 rpm.[1] The car retained its road car amenities such as power windows and locks, Bose radio, electronic air conditioning and, power sport seats with all necessary race car modifications such as roll cage.[1]

Driven by John Lingenfelter, the car reached 254.76 mph (410.00 km/h) mph at the Transportation Research Center, Ohio and was driven back to Old Lyme.[1]

The Aerobody would become commercially available this would become the first of the partnerships with Deutschman, in which he also designed its later models such as Speedster, SuperNatural, C7, C12 and C16.[2]

Performance Stats

  • Horsepower: 898 bhp / 669.6 kW @6200 rpm
  • Torque: 772.2 ft·lbf / 1047.0 Nm @6200 rpm
  • BHP/Liter: 157.54 bhp/Liter
  • Power to weight ratio: 0.565 bhp/kg
  • Top Speed: 254.8 mph / 409.9 km/h
  • 0 - 60 mph acceleration: 3.9 seconds
  • 1/4 Mile: 10.6 seconds
  1. ↑ 1.0 1.1 1.2 1.3 Callaway Owners Group:Callaway Of the Month Nov/Dec '03
  2. ↑ 2.0 2.1 Deutschman Design
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