1989 Camaro IROC special edition
1989 IROC-Z Special Performance Package
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Engine: Base engine was LG4 305 w/ 4 barrel Quadrajet. Dual exhaust.
Transmission:
Clutch: 10.34 inches
Rear Axle: Positraction (G80) mandatory when equipped with 4 wheel disc brakes.
Brakes: J65 4 wheel disc brakes available.
Suspension: Stiffer bracing and bushing material than base Camaro.
58/32 N/mm Front/Rear Spring Rate (SC = 58/18, F41 = 58/18)
31/21 mm Front/Rear Sway bar diameter (SC = 27/12, F41 = 29/12)
Steering: 7 ply-joint vs 4 ply in base Camaro improves rag joint stiffness and offers better angular deflection. Recirculating-ball power steering with fast 12.7:1 ratio, plus limited boost to improve road feel.
Wheels & Tires: 5 spoke aluminum 15 x 7 inch. Goodyear P215/65R-15 white letter , steel belted radials.
Other options, equipment, facts: Modified McPhearson Strut, Special chassis bracing. Full Instrumentation. Special front fascia with integral airdam. Ground effects rockers.
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