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ZR1 Specs 1991

General Engine                                                
Base Price -    $65,121 Type - STD 90 degree V8 DOHC L(LT5)
Vehicle Type - 2-Door Block Material - Cast Aluminum
Vehicle Class - Mini Compact Cylinder Head Material/Configuration/Hydraulic Lifters (yes/no) - Alum/24vlvs per cyl/yes
Primary Structure - Welded Steel Uniframe Bore X Stroke - 3.90 x 3.66 in. (99 x 93 mm)
Body Material - Fiberglass Reinforced Plastic (SMC) Arrangement and # Cylinders - V8
Suspension Displacement - 5.7L/350 CID
Front - Independent Alum Parellel Short and Long Arm (SLA) and Steering Knuckle.  Transverse Monoleaf Spring and Steel Stabilizer Compression Ratio - 11.0:1
Rear - Independent 5-link with Transverse Monoleaf Spring and Tie Rods and Stabilizer Induction System - MFI
Steering Horsepower (SAE net) - 375 @ 5800
Type - Power, Rack-and-Pinion Torque (SAE net) - 370@ 4800
Ratio - 15.6:1 Emission Contol System - Cat. Convert/Air Injection w/Comm. Cntrl. EGR. Evap. Emm. Contol
Turns, lock-to-lock - 2.32 Cam Drive - Chain
Turning Diameter, curb-to-curb - 40 ft Recommended Fuel (minimum) - Premium 91 octane
Brakes Drivetrain
Type - Power, Vacuum with front/rear Electrohydraulic Anti-Lock Type - RWD
Front, size - Disc. 13 x 1.10 in Transmission - Manual 6 speed (ML9)
Rear, size - Disc. 12 x .79 in  Gear Ratios:
Total Swept Area (front/rear) - 102/91 in  1st - 2.68
Wheels and Tires  2nd - 1.80
Wheel Size/Type - 17 x 9.5 in/17 x 11 in -- Aluminum Alloy  3rd - 1.31
Tires Size/Type (front/rear) - P275/40ZR17/P315/35ZR17 -- Goodyear Steel-Belted Eagle ZR  4th - 1.00
Spare Size - T155/70D17  5th -  .75
   6th -  .50
  Reverse - 2.50
  Axle Ratio - 3.45