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How
Much Difference Does the 'R' Make?
 A
comparison of the C5 Corvette and it's race-bred cousin the C5-R
Corvette is returning to road racing with a factory team
this year. The car is based on the new C5 Corvette that you can purchase
at a Chevrolet dealer near you. However the C5-R is a vastly different
beast than that C5 sitting on the showroom floor. We thought it would
be fun to do some comparisons of the two cars. Here's how things stack
up.
| Dimensions |
| |
|
|
| |
2000 C5 Corvette |
C5-R Corvette |
| Wheelbase |
104.5" |
104.7" |
| Length |
179.7" |
182.8" |
| Width |
73.6" |
76.4" |
| Height |
47.7" |
45.8" |
| Front Tread |
62.1" |
74.7" |
| Rear Tread |
62.2" |
76.1" |
| Curb Weight |
3245 lbs (coupe) |
2510 lbs |
| Fuel Capacity |
18.5 gals |
100 liters |
It is noteworthy that the C5-R looks very similar to the
C5 and yet the car is three inches longer and the tread width a whopping
12 inches wider in the front and 14 in the rear! You'll also notice the
C5-R weights 735 pounds less!
|
Chassis / Suspension / Tire
/ Wheels |
| |
|
|
| |
C5 |
C5-R |
| Structure/Frame |
Steel welded perimeter frame with hydro-formed frame rails. |
Same. |
| Body |
Fiberglass reinforced plastic |
Carbon Fiber |
| Front Wheels/Tires |
P245/45ZR-17 Goodyear Eagle
on 17 X 8.5 aluminum wheels |
Goodyear Racing Eagle on 25 X 12-18 on BBS magnesium one piece center
lock wheels. |
| Rear Wheels/Tires |
P275/40ZR-18 Goodyear Eagle F-1 on 18X9.5 aluminum wheels magnesium
wheels. |
Goodyear Racing Eagle
28X12.5-18 BBS forged |
| Rotor material |
Vented iron rotors |
Vented carbon rotors &pads |
| Front Rotors |
12.6" dia. 1.26" thick |
15.0"dia 1.38" thick |
| Rear Rotors |
11.8" dia. 1.0" thick |
14.0" dia. 1.26 thick |
| |
|
|
|
Engine |
| |
|
|
| Type |
LS-1 pushrod V-8 aluminum block and heads |
LS-1 pushrod V-8 aluminum block and heads |
| Bore X Stroke |
3.90" X 3.62" 346 Cu. In. |
4.125" X 3.42" 365 Cu. In. |
| Compression |
10.1:1 |
12.5:1 |
| Horsepower |
345 @ 5600 rpm |
600 @ 7200 rpm |
| Torque |
350 @ 4400 rpm |
495 @ 5600 rpm |
| Transmission |
six speed or four speed automatic |
5-speed manual with drop gear. |
Note the horsepower rating is 255 more on the race car. Our
sources tell us that by spring of 2000 Chevrolet will be pulling almost
700 hp from the LS-1 race engine. That is awesome performance and remember
it has to run for 24 hours at LeMans! For more information on Corvette
endurance racing including a schedule of events you can visit www.americanlemans.com.
There is going to be some great racing in the year 2000, beginning with
the Rolex 24 Hours of Daytona in February.
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