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1990 Specs

More About the 1990 Corvette

To learn more about the ZR-1 Corvette, click here.

1990 Chevrolet Corvette ZR-1 in Bright Red

1990 Chevrolet Corvette ZR-1 in Bright Red

Close1990 Chevrolet Corvette ZR-1 in Bright Red

Body Specs

Wheelbase: 96.2 inches
Overhang (Front): 40.5 inches
Overhang (Rear): 39.7 inches
Front Track: 59.6 inches
Rear Track: 60.4 inches
Length: 176.5 inches
ZR-1: 177.4 inches
Width: 71.0 inches
ZR-1: 73.291 inches
Ground Clearance
Differential to Ground:
6.8 inches
Ground Clearance
Front Bumper to Ground:
4.9 inches
Ground Clearance
Rear Bumper to Ground:
13.0 inches
Minimum Ground Clearance: 4.7 inches
(Measured at Catalytic Converter)
Overall Height: 46.7 inches (Coupe)
46.7 inches (Convertible)
46.8 inches (Zr-1)
Rocker Panel to Ground (Front): 6.9 inches
Rocker Panel to Ground (Rear): 6.9 inches
Cargo Capacity: 100 lbs. / (Coupe and Convertible)
6.6 cubic feet (Convertible)
Liftover Height: 35.5 Inches (Coupe)
Cowl Height: 33.4 inches
Effective Head Room: 36.5 inches
Shoulder Room: 53.8 inches
Hip Room: 49.3 inches
Tire Size: P275/40ZR17 B/W
(Goodyear Eagle 40ZR, Unidirectional)
ZR-1 (Rear)
P315/35ZR17
Wheel Size: 17" x 9.5" (Front and Rear)
With Z51 Performance Handling Package
Front / Rear: 17" x 9.5"
ZR-1 Rear: 17" x 11.0"
Recommended Tire Inflation 35 PSI Front / Rear
Manual Six Speed Transmission: 1st Gear 2.68:1
2nd Gear 1.80:1
3rd Gear 1.29:1
4th Gear 1.00:1
5th Gear .75:1
6th Gear .50:1
Reverse Gear 2.50:1
Turbo Hydra-Matic (Automatic) Transmission: 1st Gear 3.06:1
2nd Gear 1.63:1
3rd Gear 1.00:1
4th Gear 0.70:1
Reverse Gear 2.29:1
Turbo Hydra-Matic (Automatic) Transmission
Lubricant:
Dextron II
8.0 Pints
Maximum Uphill Speed
(Wide Open Throttle):
1 > 2: 43 MPH
2 > 3: 79 MPH
3 > 4: 116 MPH
Manual Transmission
Lubricant Type:
5W-30 Texaco Code 1650 TL11408A, GM 9985535
2.1 Liters
Axle Ratio: 3.07:1, 3.33:1 (Manual Transmission)
2.59:1, 3.07:1 (Automatic Transmission)
Standard Fuel Tank Capacity: 20 Gallons
Steering Ratio: 13.0:1
Turning Diameters
Outside Front:
41.3 feet (Wall to Wall)
40.0 feet (Curb to Curb)
Steering Wheel Diameter: 14.5 inches


EPA Fuel Economy

Twin Turbo Manual: City: 13
Highway: 20
Combined: 15
Manual: City: 15
Highway: 23
Combined: 17
Automatic: City: 15
Highway: 22
Combined: 17
Manual: City: 15
Highway: 23
Combined: 18


Weight

Model 1YY07 2-Door Hatchback Coupe : Curb Mass
Front: 1,641 lb.
Rear: 1,614 lb.
Total: 3,255 lb.
ETWC*: 3,625 lb. (Manual Transmission
ETWC*: 3,625 lb. (Automatic Transmission
Model 1YY67 2-Door Convertible: Curb Mass
Front: 1,665 lb.
Rear: 1,636 lb.
Total: 3,301 lb.
ETWC*: 3,625 lb.
Model 1YZ07 2-Door Hatchback Coupe (ZR1): Curb Mass
Front: 1,750 lb.
Rear: 1,729 lb.
Total: 3,479 lb.
ETWC*: 3,750 lb.
* Equivalent Test Weight Class - US Environmental Protection Agency emission certifications are based on ETWCs shown.
Curb Weight: The calculated weight of a vehicle with standard equipment, only as designed with the additional load of oils, lube, coolant and fuel filled to capacity.
Shipping Weight: Same as base curb weight except only 3 gallons of gasoline.
Manual transmission weights shown; automatic transmission no cost option.

Weight Differentials
Removeble Plastic Roof Panel
(RPO CC3):
-3.1 lb.
(-0.9 lb. Front; -2.2 lb. Rear)
Electric Defogger System
Rear Window and Side Mirror
(RPO Z6A):
+0.8 lb.
(+0.4 lb. Front; +0.4 lb. Rear)
Performance Handling Package
(RPO Z51):
+9.5 lb.
(+4.2 lb. Front; +5.3 lb. Rear)
Delco-Bose
Premium Audio System
(RPO UU8):
+9.7 lb.
(+3.3 lb. Front; +6.4 lb. Rear)
Radio Delete (RPO UL5): -11.0 lb.
(-5.3 lb. Front; -5.7 lb. Rear)
Custom Adjustable Seats
(RPO AQ9):
+13.5 lb.
(+6.2 lb. Front; +7.3 lb. Rear)
Automatic Air Conditioning
(RPO C68):
+2.2 lb.
Leather Seat Trim
(RPO AR9):
+3.5 lb.
(+1.3 lb. Front; +2.2 lb. Rear)
Heavy Duty Cooling
(RPO V08):
+10.2 lb.
(+12.8 lb. Front; -2.6 lb. Rear)


Engine Specs

Type:: 90° V8 (LT5: DOHC 32-Valve)
Bore / Stroke:: 4.00" / 3.48"
LT-5: 3.90" x 3.66"
Engine Weight:: ZR-1 LT5 596 lb.
Standard L98: 557 lb.
Fuel Requirement:: 91-Octane Rating Unleaded Gasoline
(L98, ZR-1 Engines)
Compression Ratio:: L98: 9.5:1
LT5 (ZR-1): 11.0:1
Cylinder Head Material:: Aluminum
Cylinder Block Material:: L98: Cast Alloy Iron
LT5 (ZR-1): Aluminum
Oil Pump Type:: Gear
Cooling System Capacity: 14.65 Quarts (Manual Transmission)
14.51 Quarts (Automatic Transmission)
16.7 Quarts (ZR-1)
Battery: 12 volt - 630 Cold Cranking Amps (CCA)
54 Amp-hours
Alternator: Delco-Remy
105 Amps

Fuel System
Type: Electronic Fuel Injection - Tuned Port Injection (TPI)
(L98 and LT5 Engines)
Fuel Pump: Electric, Dual Turbine - In Fuel Tank
Point of Injection: Fuel Injectors at Inlet Ports
Flow: Pulse

Horsepower
ZR-1 Engine LT5 (350 cubic inch): 375 hp @ 5,800 RPM;
Torque: 370 lb-ft @ 4,800 RPM
Axle Ratio: 3.45:1
Standard Engine L98 (350 cubic inch): Manual Transmission: 250 hp @ 4,400 RPM;
Torque: 350 lb-ft @ 3,200 RPM
Axle Ratio: 3.33:1
Automatic Transmission: 245 hp @ 4,000 RPM;
Torque: 345 lb-ft @ 3,200 RPM
Axle Ratio: 2.50:1
Automatic Transmission: 250 hp @ 4,400 RPM;
Torque: 350 lb-ft @ 3,200 RPM
Axle Ratio: 3.07:1
Automatic Transmission: 245 hp @ 4,000 RPM;
Torque: 345 lb-ft @ 3,200 RPM
Axle Ratio: 2.73:1

Ignition System
Spark Plug
(Standard L98 Engine):
FR5LS
Make: AC
Spark Plug
(ZR-1 LT5 Engine):
FR2LS
Make: AC
Spark Plug Thread: M14 x 1.25
Spark Plug Gap: .035 inch
Spark Plug Tightening Torque: 18 - 22 lb. - ft.

Brakes
Type: Hydraulic Power Brake Front and Rear Disc
Effective Area: 32.4 Square Inches (209 Square cm.) (Front)
18.4 Square Inches (119 Square cm.) (Rear)
Gross Lining Area: 33.0 Square Inches (213 Square cm.) (Front)
18.4 Square Inches (119 Square cm.) (Rear)
Swept Area: 111.9 Square Inches (722 Square cm.) (Front)
91.3 Square Inches (589 Square cm.) (Rear)
Rotor: Outer Working Diameter: (302 mm.) 9.9 inches
Inner Working Diameter:
7.3 Inches (222 mm.) (Front),
7.6 Inches (232 mm.) (Rear)
Type and Material: Vented, Gray Iron Vented (Front)
HCE Iron Vented (Rear)

1990 Corvette Options

RPO: Description Production:    Price
24S Removable Roof Panel, blue tint (coupe) 7,852 (33.21%) $615.00
64S Removable Roof Panel, bronze tint (coupe) 4,340 (18.35%) $615.00
AC1 Power Passenger Seat 20,419 (86.35%) $270.00
AC3 Power Driver Seat 23,109 (97.73%) $270.00
AQ9 Sports Seats, leather 11,457 (48.45%) $1,050.00
AR9 Base Seats, leather 11,649 (49.26%) $425.00
B2K Callaway Twin Turbo; installed by Callaway, sold and warranted by GM. 58 (0.25%) $26,895.00
C2L Dual Removable Roof Panels (coupe) 6,422 (27.16%) $915.00
C68 Electronic Air Conditioning Control 22,497 (95.14%) $180.00
CC2 Auxiliary Hardtop (convertible) 2,371 (10.03%) $1,995.00
FX3 Selective Ride and Handling, electronic 7,576 (32.04%) $1,695.00
G92 Performance Axle Ratio. Coupes with 3.07:1 or 3.33:1 rear axle ratios were rated at 245 hp. 9,362 (39.59%) $22.00
K05 Engine Block Heater 1,585 (6.70%) $20.00
KC4 Engine Oil Cooler 16,221 (68.60%) $110.00
MN6 6-Speed Manual Transmission 8,101 (34.26%) n/a
NN5 California Emission Requirements 4,035 (17.06%) $100.00
U1F Stereo System with CD, Delco-Bose 15,716 (66.46%) $1,219.00
UJ6 Low Tire Pressure Warning Indicator 8,432 (35.66%) $325.00
UU8 Stereo System, Delco-Bose 6,701 (28.34%) $823.00
V56 Luggage Rack (convertible) 1,284 (5.43%) $140.00
Z51 Performance Handling Package (coupe) 5,446 (23.03%) $460.00
ZR1 Special Performance Package (coupe) 3,049 (12.89%) $27,016.00

Total Production: 23,646
Coupe: 16,016 (67.73%)
Convertible: 7,630 (32.27%)

Notes: Base Corvette Coupe with 350 cu. in. 240 hp engine and four speed automatic transmission: $31,979.00.
Base Corvette Convertible with 350 cu. in. 240 hp engine and four speed automatic transmission: $37,264.00.

Colors

Code Exterior Quantity Interior Soft Top
10 White 4,872 (20.60%) Blue / Black / Gray / Red / Saddle Black / Saddle / White
25 Steel Blue Metallic 813 (3.44%) Blue / Black Black / White
41 Black 4,759 (20.13%) Blue / Black / Gray / Red Black / White
42 Turquoise Metallic 589 (2.49%) Black / Saddle Black / Saddle
53 Competition Yellow 278 (1.18%) Black / Gray / Saddle Black / Saddle / White
68 Dark Red Metallic 2,353 (9.95%) Black / Saddle Black / Saddle / White
80 Quasar Blue Metallic 474 (2.00%) Black / Saddle Black / Saddle
81 Bright Red 6,956 (29.42%) Black / Gray / Red / Saddle Black / Saddle / White
91 Polo Green Metallic 1,674 (7.08%) Black / Saddle Black / Saddle
96 Charcoal Metallic 878 (3.71%) Black / Gray Black / Saddle

1990 Corvette