Performace axle ratio. i.e. upgraded rear gears.
There were 205 1985 camaro IROC-Z28's made with option G92. Option G92 was 3.42 axle ratio and came only in the IROC-Z in 1985.
there were 205 G92's made in 1985 and it came on the IROC/Z only.
If, in fact, we're talking about a 5.7 (350 cu. inch) optioned Iroc for 1989, [confirm with VIN number (if 8th digit from left to right is the number "8", then it's equipped with the 5.7L motor)] then it will depend upon whether or not it came equipped with the RPO "G92". Find your RPO codes sticker in your glove box. With G92 option : 240horsepower / 345lb/ft torque Without " " " : 230horsepower / 330lb/ft torque
100
There were no IROC Camaros in 1991
No, some IROC's are a 305 5.0 Liter and have a 5 speed manual. Total production for IROC's in 1987 was 38889, 12105 of those were 5.7L IROC's. ALL 5.7L IROC's were 700R4 Automatics, the remaining 26784 5.0L IROC's were available in Auto or Manual Transmissions.
no.
no, all IROC-Z's were V8s.
It was just an incorporation of the "Z" in Z-28. IROC stood for International Race Of Champions.....from the Nascar IROC races.
Yr Model Trans Engine code/type CR Displ. HP Torque Induc- tion Manual std. Manual opt. (G92) Auto std. Auto opt. (G92) 89 RS M5,A4 LB8 V6 8.9:1 2.8 (173) 135@4900 160@3900 MFI 3.42 ---- 3.42 ---- 89 RS M5,A4 LO3 V8 9.3:1 5.0 (305) 170@4400 255@2400 TBI 3.08 ---- 2.73 ---- 89 IROC-Z M5,A4 LO3 V8 9.3:1 5.0 (305) 170@4400 255@2400 TBI 3.08 ---- 2.73 ---- 89 IROC-Z A4 LB9 V8 9.3:1 5.0 (305) 195@4000 295@2800 TPI ---- ---- 2.73 ---- 89 IROC-Z M5 LB9 V8 9.3:1 5.0 (305) 220@4400 290@3200 TPI 3.08 ---- ---- ---- 89 IROC-Z M5 LB9 V8 9.3:1 5.0 (305) 230@4600 300@3200 TPI ---- 3.45* ---- ---- 89 IROC-Z A4 L98 V8 9.3:1 5.7 (350) 230@4400 330@3200 TPI ---- ---- 2.77* ---- 89 IROC-Z A4 L98 V8 9.3:1 5.7 (350) 240@4400 345@3200 TPI ---- ---- ---- 3.27* *Borg-Warner rear axle
the last production year for the iroc z was 1990, there is no such thing as a 1991 iroc z
There is no such thing as a 1992 IROC Camaro