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Did they make a TBI IROC-Z

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Old Jan 30, 2006 | 09:47 PM
  #1  
wheelstandin87's Avatar
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From: Waldorf,MD
Car: 87, 88 and 89 Iroc-Z
Engine: 305, and 350
Transmission: 700R, and T-5
Axle/Gears: 3:23 POSI
Did they make a TBI IROC-Z

I need to know if they make an 88 Iroc 5 spped becuase this guy has one but my friend claims its fake but its not . i need reinsurance.
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Old Jan 30, 2006 | 09:48 PM
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From: San Antonio
Car: 78 Caprice Coupe
Engine: 355
Transmission: 4L60
Axle/Gears: 3.42
I don't know what you're going on about 5 speed something but there were no TBI Irocs
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Old Jan 30, 2006 | 10:11 PM
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Car: '90 RS
Engine: 377 LSX
Transmission: Magnum T56
Originally posted by TierAngst
but there were no TBI Irocs
Yes there were. The LO3 was the base motor for the '88 model year IROC-Z, Formula, and Trans Am. The T5 or A4 was available as well. The LB9 was the option motor.
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Old Jan 30, 2006 | 10:19 PM
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From: Waldorf, MD
Car: 91 Formula, 89 IROC
Engine: LB9, LB9
Transmission: 700R4, 700R4
Axle/Gears: Posi 2.73, Posi 2.73
Rare or no? I have never ever in my life seen one and if its the same motor as my RS, which is faster?
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Old Jan 30, 2006 | 10:46 PM
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From: San Antonio
Car: 78 Caprice Coupe
Engine: 355
Transmission: 4L60
Axle/Gears: 3.42
Darn, could have sworn all irocs came with TPI motors. You'd know better than I would though.
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Old Jan 30, 2006 | 11:10 PM
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From: Moorestown, NJ
Car: 88 Camaro SC
Engine: SFI'd 350
Transmission: TKO 500
Axle/Gears: 9-bolt w/ 3.23's
Originally posted by ShiftyCapone
Yes there were. The LO3 was the base motor for the '88 model year IROC-Z, Formula, and Trans Am. The T5 or A4 was available as well. The LB9 was the option motor.
Dont forget the SC
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Old Jan 31, 2006 | 05:06 AM
  #7  
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From: alpena,mi
Car: 1990 chevy camaro rs
Engine: 305,v8
Transmission: auto
iroczone.com

1988:

1988 brought about some welcome changes in the horsepower department, as well as a somewhat revised exterior scheme. The Z28 was discontinued, and the IROC was now its own model. For the first time in the history of the Camaro, no carbureted Camaros were available. All motors offered fuel injection of some sort. The base IROC motor had the TBI injection that was very similar to what was found on the trucks. A new camshaft finally found its way into the 305 TPI and boosted horsepower to 195 horse in the auto, and a stout 220 horse when backed with the T5. The 350 also got a small horsepower boost to 225 horse. All of the V8s starting in 88 had "guided rocker arms" that featured a stamped-in lip on each side of the pad that contacts the valve stem.

The exterior of the IROCs received a mild update for 88. The most noticeable difference is that the wheels have been slightly changed. Instead of one line through the center of each spoke, there were now two lines, and the center area was a little different. Here's an interesting tidbit: for the first time, the 16" wheel was an option on the IROC. The car came standard with a 15" version. Along with that, the IROC-Z decal was a little smaller and moved to the rear of the door instead of the front. The stripe along the ground effects line now had the black line above the silver. The silver Z-28 badges on the exterior have been replaced with orange IROC-Z logos.
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Old Jan 31, 2006 | 05:40 AM
  #8  
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From: Waldorf, MD
Car: 91 Formula, 89 IROC
Engine: LB9, LB9
Transmission: 700R4, 700R4
Axle/Gears: Posi 2.73, Posi 2.73
So basically the TBI took over the LG4?
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Old Jan 31, 2006 | 07:09 AM
  #9  
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From: Cincinnati, OH
Car: '90 RS
Engine: 377 LSX
Transmission: Magnum T56
Originally posted by 90CamaroTBI
So basically the TBI took over the LG4?
Correct.
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Old Jan 31, 2006 | 05:55 PM
  #10  
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From: Ga
Car: 91 RS
Engine: 305
Transmission: T5
Axle/Gears: 3.73
I would have thought BS but I seen one 8 years ago in a salvage yard.
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Old Jan 31, 2006 | 06:11 PM
  #11  
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From: Kalamazoo
Car: 89 iroc
Engine: 355 TPI FINALLY
Transmission: 700r4/ SHIFT KIT
Axle/Gears: 3.42
mine is 89 L03 IROC
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Old Jan 31, 2006 | 07:20 PM
  #12  
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From: Albany, NY Area
Car: Red on Red 89 RS
Engine: LO3 305 TBI
Transmission: TH-700R4
Axle/Gears: 10-bolt / 2.73
I saw an LO3 IROC at the track and thought it was a fake... did some research, and found that it was really a 'Roc
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Old Feb 1, 2006 | 08:46 AM
  #13  
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Yes, the L03 was in the IROCs ...I got one. They also had the 15" rims too. They put them in convertibles especially.


Last edited by Casey_Butt; Feb 1, 2006 at 08:49 AM.
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Old Jan 12, 2021 | 01:10 PM
  #14  
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Re: Did they make a TBI IROC-Z

Originally Posted by 90CamaroTBI
Rare or no? I have never ever in my life seen one and if its the same motor as my RS, which is faster?
I Have A 1988 Full Load Iroc z Tbi Motor Factory (The 8Th Number In The Vin Is A E Not F So Yes They Do Exists lol
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Old Jan 12, 2021 | 07:40 PM
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From: Sweet home Alabama
Car: 1987 GTA
Engine: 5.0
Transmission: Automatic
Re: Did they make a TBI IROC-Z

Welcome to 2021, seems like back in 2006 this was established
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Old Jan 13, 2021 | 07:53 AM
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Re: Did they make a TBI IROC-Z

Welcome to 2021, seems like back in 2006 this was established
Awww....be nice to the new guy. We've all necro'd a thread once or twice.LOL
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Old Jan 13, 2021 | 04:51 PM
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Re: Did they make a TBI IROC-Z

Originally Posted by Abubaca
Awww....be nice to the new guy. We've all necro'd a thread once or twice.LOL

Yeah , but still , never could get past the taste .....
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