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1989 Chevy Camaro '89
dave8412 Jun 7 2006 - 2:50pm
Sport Coupe dropped, replaced by returning RS model. 1989 Chevy Camaro RS now available with LO3 V-8. Headlight pockets on RS no longer painted black. '89 Camaros now came with rear shoulder belts. The Corvette PASS-KEY ignition lock system was adopted for all 1989Chevrolet Camaros.The base 15 inch IROC wheel was restyled to have the appearance of the optional 16 inch wheel. P245/50ZR-16 tires replaced the P245/50VR-16 tires on the IROC-Z when equipped with the 16 inch wheels. TPI motors got better performing `Multec' fuel injectors. The exterior of the TPI plenum changed slightly: the ridges on top of the plenum did not extend as far forward. Calibration refinements eliminated the cold start injector.Four wheel disc optioned (J65) IROC-Z's rear brakes were increased in size from 10.5 inch rotors to 11.65 inch rotors with PBR Australian built aluminum calipers and more reliable parking brake actuators. Front discs still had 10.5 inch rotors with Delco-Moraine single piston calipers.
G92 option included N10 performance exhaust system (dual catalytic converters) which increased power output by 13% on cars so equipped. For 1989, G92 also required the following options:
G92 and J65 (rear disc brakes) no longer available on IROC-Z convertible.G92 and J65 (rear disc brakes) no longer available on LB9 automatic IROC-Z.1LE performance package option (option level 0 IROC-Z) became more well-known.
1LE package was obtained by ordering the following:
Then the 1LE performance package was installed consisting of:
111 1989 1LE IROC-Z's were produced.
A new progressive throttle linkage was added to give smoother initial acceleration. The throttle had a smaller rate of advance at beginning of travel, and a larger ratio as the throttle was depressed
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