1990 Chevrolet Corvette ZR1

1990 CHEVROLET CORVETTE ZR1
Chevy approached Lotus Engineering in 1986 about designing a new state-of-the art DOHC (Dual Overhead Cam) V8 for the Corvette. It took until 1990 to actually introduce the new model as the 1990 Chevrolet Corvette ZR-1. The new LT5 V8 was added to the FX3 Active Suspension package to create it. ZR-1s are recognizable by their "wide-body" tail section (broader rear fenders to cover the 11-inch tires), new rear facia with semi-square tail lights, and the third brake light mounted on top of the rear glass.

1990 Chevrolet Corvette ZR1 ENGINE
LT5 - DOHC 32-valve 5.7L V8

1990 CHEVROLET CORVETTE ZR1 ENGINE
Designed by Lotus Engineering, the all-aluminum, DOHC 32-valve LT5 needed to be hand-assembled, and Chevy simply wasn't set up for it. So they contracted with Mercury Marine (the motor boat people) to build the engines for them, and it worked out great. The LT5 has the same bore centers as a small block Chevy V8, so the engines were about the same size. Lotus designed an innovative intake system that shut intake flow to one of each cylinders' two intake valves at lower RPMs to improve low-end torque. This was accomplished through a 2-stage intake manifold, and at higher RPMs, all valves opened up for full power.

1990 Chevrolet Corvette ZR1 SPECIFICATIONS


PRODUCTION (total 26,412)

    Base Coupe (includes ZR1)

     Convertible

     ZR1 (all Coupes)

ZR1 Serial Numbers

BASE PRICE

     Base Coupe 

     Convertible

     ZR1 Option Pkg

Wheelbase

Overall Length

Overall Width

Overall Height

Track, Front

Track, Rear

Tires, Front

Tires, Rear

Fuel Capacity

ZR1 ENGINE SPECS:

RPO

Engine Type

Engine Family

Displacement

Bore & Stroke

Block & Head Material

Horsepower

Torque, lb/ft

Compression

Fuel System


16,663 (includes ZR1)

9,749

3,049 (all Coupes)

1G1YZ23JXL5800001 to 1G1YZ23JXL5803049


$31,979.00

$37,264.00

+ $27,016 (added to Coupe price) = $58,995.00

96.2" / 244.3 cm

176.5" / 448.3 cm

71.0" / 180.3 cm

46.7" / 118.6 cm

59.6" / 151.4 cm

61.9" / 157.2 cm

P275/40ZR-17 Goodyear Eagle GT

P315/35ZR-17 Goodyear Eagle GT

20 US gallons / 76 liters


LT5

DOHC 32-valve 90-degree V8

LT5

350 ci / 5.7 liters

4.00" X 3.48"

Aluminum

375 @ 5800 rpm

370 @ 5600 rpm

11.0:1

Tuned Port Injection (TPI) w/primary & secondary injectors


OTHER CORVETTE PAGES
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..............................1990 ZR1
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