'90 IROC vs. RS question
#1
'90 IROC vs. RS question
Alright I'm not the 3rd generation enthusiast I want to be yet so don't give me any crap for this question please. I've looked at the '90 tech page but I think it may need some revision because a little of it didn't make sense to me but, my question is: as far as the body and interior go, what are the differences between the 1990 IROC-Z and RS? The more elaborate, the more helpful. Thanks!
Last edited by matts427; 05-21-2013 at 10:58 PM.
#2
Re: '90 IROC vs. RS question
One thing I know the Iroc will have is the 145MPH speedo.
The RS will have 110 I think.
I'm also not sure, but were the foglights an option on the RS?
The RS will have 110 I think.
I'm also not sure, but were the foglights an option on the RS?
#3
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Car: 86' IROC-Z....and 5 other 3rdgens
Engine: 383 hsr
Transmission: built 700r4
Axle/Gears: stock 3.23, 10bolt
Re: '90 IROC vs. RS question
as far as body and interior ONLY, would be grill, hood, badges (int&ext), decals, tail lights, headlight bucket paint, wheels, speedometer...just visual
#6
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Car: 89 camaro rs
Engine: 350 tbi
Transmission: 700r4
Re: '90 IROC vs. RS question
The parts id card in the center console has the code "b4z" and "z28" and the vin matches the title, so it is a true iroc.
#7
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Re: '90 IROC vs. RS question
Guys, an '86 doesn't have anything to do with the 1990 the OP is asking about. The '86 cars came with 85mph speedometers due to federal regulations. Part way through '86, they switched to the higher speedometers. Not all IROC-Zs have the 145 speedo.
As was mentioned, the majority of the difference is cosmetic/appearance. The IROC-Z had better engine options, but could also have the same L03 that the RS could have. The IROC-Z also has better handling and suspension over the RS.
As was mentioned, the majority of the difference is cosmetic/appearance. The IROC-Z had better engine options, but could also have the same L03 that the RS could have. The IROC-Z also has better handling and suspension over the RS.
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#9
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Car: 89 camaro rs
Engine: 350 tbi
Transmission: 700r4
Re: '90 IROC vs. RS question
Well said Scott!
Mine is a true iroc z28 with the code reading "b4Z" in the center console and my speedo reads 85 mph.
Mine is a true iroc z28 with the code reading "b4Z" in the center console and my speedo reads 85 mph.
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