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Press Release: 1999 C5 Corvette and C5-R Race Car Comparison

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General Motors Media Press Release
FOR RELEASE:  November 4, 1998
CONTACT:  Cam Melangton
Phone:  (317) 843-5444

 1999 C5 Corvette1999 C5-R Corvette Dimensions
Wheelbase 104.5" 104.7"
Length 179.7" 182.8"
Width 73.6" 76.4"
Height 47.8" 45.8"
Front Tread 62.0" 74.7"
Rear Tread 62.1" 76.1"
Curb Weight 3245 lbs. (coupe) 2510 lbs.
Fuel Capacity 19.1 gals. (US) 100 liters

Chassis/Suspension/Tires/Wheels

 1999 C5 Corvette 1999 C5-R Corvette
Structure/Frame Steel welded perimeter frame with hydro- formed frame rails Steel welded perimeter frame with hydro- formed frame rails
Body Fiberglass-reinforced Carbon fiber plastic
Front Suspension Short/long arm double wishbone; forged aluminum control arms; transverse leaf spring; gas shocks; 23.0mm anti-roll bar (25.4mm w/hardtop or Z51 pkg.) Short/long arm double wishbone; forged aluminum upper, cast aluminum lower control arms; fabricated steel knuckle; coil-over multi-adj. shocks; adj. anti-roll bar
Rear Suspension Short/long arm double wishbone; cast aluminum control arms; composite transverse leaf spring with individual height adjusters; gas shocks; 19.1mm anti-roll bar Short/long arm double wishbone; steel fabricated upper, cast aluminum lower control arms; fabricated steel knuckle; coil-over multi-adj. shocks; adj. anti-roll bar (27.1 w/hardtop or Z51 pkg.)
Front Tires/Wheels P245/45ZR-17 Goodyear Eagle F-1 high performance Extended Mobility (EMT)/17" X 8.5" 5-spoke aluminum Goodyear Racing Eagle 25X10-18 BBS forged magnesium 1 piece center lock wheel
Rear Tires/Wheels P275/40ZR-18 Goodyear Eagle F-1 high performance Extended Mobility (EMT)/18" X 9.5" 5-spoke aluminum Goodyear Racing Eagle 28X12.5-18 BBS forged magnesium 1 piece center lock wheel
 1999 C5 Corvette1999 C5-R Corvette
Brakes Type 4-wheel vented disc w/standard ABS 4-wheel vented Alcon disc
Front Rotor Diameter/Thickness 12.6"/1.26" 15.0"/1.38"
Rear Rotor Diameter/Thickness 11.8"/1.0" 14.0"/1.26"
Total Swept Area in. Front/Rear in. 263 sq. in./158 sq. 343 sq. in./292 sq.
Engine Type LS1 Pushrod V8 with aluminum block and heads LS1 Pushrod V8 with aluminum block and heads
Bore X 3.90" X 3.62"/5.67 4.125" X 3.42"/5.98
Stroke/Displacement liters (346 cid) liters (365 cid)
Intake System Electronic Sequential Fuel Injection Electronic Sequential Fuel Injection
Ignition Distributorless - one coil per cylinder GEN III Delphi
Valvetrain Two pushrod-operated valves per cylinder Modified stock cam; aftermarket rocker arms
Compression Ratio 10.1:1 12.5:1
Horsepower 345 @ 5600 RPM 600 @ 7200 RPM
Torque 350 @ 4400 RPM 495 @ 5600 RPM
Transmission Type 6-speed manual (coupe & hardtop) 4-speed 4L60-E automatic overdrive 5-speed manual with drop gear (convertible)
Final drive ratio 3.42:1 (w/6-spd.) 2.73:1 (w/auto, 3.15:1 opt. w/auto) 3.11:1 (subject to change depending on race track)

Performance 0-60 MPH (sec.) 5.0
1/4 mile (sec./MPH) 13.36/109
Lateral Acceleration 0.93 g
Top speed (MPH) 175 (Hardtop)

Performance measurements for the C5-R Corvette are not available. The car is set up differently for different tracks to optimize lap times.


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