Description
This car was the prototype Grand Sport built by Duntov Motor Company in 2005, and was the example used by General Motors to award Duntov the exclusive authorization to build these continuation vehicles. The car was raced in HSR and SVRA events from 2005 to 2007, scoring wins at Road America, Salt Lake City and Monterey. The car was restored in 2010 with new interior, new authentic Grand Sport body panels, and new paint. It has a newly rebuilt Auto Pro M-22 transmission and McLeod twin disk clutch. The instrumentation is correct 1963 Grand Sport, including the 200 MPH speedometer. It has never been driven on the street, although it is well equipped to do so now.
History
Completed in March 2005, it's first race was the March HSR event at Sebring, where it finished third overall in the all Corvette race. The car was presented as closely as possible to the specifications of the first big block engined Grand Sport that ran at Sebring in 1965. In 2006 the roll cage was extended through the firewall which improved both safety and handling. It scored its first win at the SVRA Koehler Brian Redman event at Road America in July. The next race was the HSR East-West Challenge at Miller Motorsports Park in Utah, and we one that as well. The car went on to win the SCCA USRRC race at Monterey in August and closed the season winning the CVAR event at Cresson, Texas.
Recent Competition History
Wins at Cresson, Road America, Miller Motorsports Park and Monterey. Worker Choice Award (favorite car) Miller Motorsports Park 2006.
Performance Data
Class: Group 5 SVRA & HSR
Weight: 2500 lbs
Engine
Engine Builder: Duntov Motor Company
Manufacturer: Chevrolet
Type: Small Block
Displacement: 383 CI
Horsepower: 500
Torque: 475
Induction: 4 -45MM Weber Carburetors on a cross ram intake manifold
Heads: Aluminum
Block: Chevy
Main Caps: 4 bolt Chevy
Crankshaft: Forged
Connecting Rods: Oliver
Pistons: JE
Camshaft: Roller
Valves: SS
Clutch: McLeod
Pressure Plate: McLeod
Flywheel: Aluminum
Exhaust: Custom side pipes with mufflers
Total Time: 1 hour
Fuel System
Fuel Cell
Manufacturer: ATL
Age: 6 yrs
Capacity: 26 Gallons
Fuel Pump: Holley
Fuel Type: 93 Octane unleaded
Oil/Water System
Radiator: Aluminum Howe
Water Rad Location: Normal
Water Pump: Aluminum GM
Oil Cooler: 19 row Setrab
Oil Cooler Location: Normal
Electrical System
Ignition: MSD
Alternator: GM
Battery: Optima
Data Logger: N/A
Computer: N/A
Transmission
Manfacturer: Auto Pro
Type: M-22
Gears: 4
Shifter: Hurst competition Plus
Trans Cooler: No
Races: Zero
Transmission overhauled 2011
Rear End
Manufacturer: Duntov Motor Company
Type: Corvette IRS
Cooler: Yes
Ratio: 3.70
Case: Iron with aluminum cover
Differential: New Eaton
Axles: 4130 special axles
Races: Zero
All new or newly rebuilt
Body
Construction: Hand laid Fiberglass
Color: Blue/white
Paint: expensive
Condition: New
Rebodied 2010 to original correct GS profile
Chassis
Type: 4 inch tube Ladder type
Builder: Tube
Material: Steel
Finish: Black
Condition: Perfect
Front Suspension: Original Grand Sport design, .125 chrome moly
Rear Suspension: Original Grand Sport design with .125 4130 stiffeners
Shocks: Pro Shocks, 2007
Brakes: Duntov calipers, Corvette rotors
Steering: Corvette
Wheels: Magnesium
Tires: Goodyear
Interior
Color/Finish: Blue/Original GS
Material: High quality vinyl, fabric and loop pile carpet
Chevy
