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IROC-Z and Z28 suspension differences

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Old Apr 14, 2006 | 06:14 PM
  #1  
priest1981's Avatar
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From: Sierra Vista, Arizona
Car: 86 IROC-Z
Engine: LB9
Transmission: 700r4
Axle/Gears: limited slip disc
IROC-Z and Z28 suspension differences

I have an 82 Z28 and an 88 IROC-Z and was just wondering what the suspension differences are. Does anyone know what the spring rates are?
Thanks,
Will
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Old Apr 14, 2006 | 09:34 PM
  #2  
xplane's Avatar
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From: Kansas
Car: 85 camaro sport coupe
Engine: 2.8 MFI
Transmission: v6 700R4 wish it was a 5spd Stick
Axle/Gears: Stock non posi 3.42s
dont know on the spring rates but really only the wonderbar, bigger wheels-tires, and then just tweaks to the springs/shocks/alighnment. other than that it was just bigger engines with extras removed to save on weight.
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Old Apr 15, 2006 | 08:40 AM
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From: Southern IL
Car: 88 GTA "Cocaine"
Engine: 350 tpi
Transmission: 700r4
Axle/Gears: 3.27
steering box, bigger springs front and rear sway bars
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Old Apr 15, 2006 | 09:58 AM
  #4  
priest1981's Avatar
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From: Sierra Vista, Arizona
Car: 86 IROC-Z
Engine: LB9
Transmission: 700r4
Axle/Gears: limited slip disc
Originally Posted by jamon8
steering box, bigger springs front and rear sway bars
Is the steering box a tighter ratio?
Will
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Old Apr 15, 2006 | 12:56 PM
  #5  
jamon8's Avatar
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From: Southern IL
Car: 88 GTA "Cocaine"
Engine: 350 tpi
Transmission: 700r4
Axle/Gears: 3.27
Yes all the ws6 cars had a better ratio gear box
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Old Apr 15, 2006 | 10:49 PM
  #6  
priest1981's Avatar
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From: Sierra Vista, Arizona
Car: 86 IROC-Z
Engine: LB9
Transmission: 700r4
Axle/Gears: limited slip disc
Originally Posted by jamon8
Yes all the ws6 cars had a better ratio gear box
So an IROC is a WS6?
Will
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Old Apr 15, 2006 | 11:19 PM
  #7  
jamon8's Avatar
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From: Southern IL
Car: 88 GTA "Cocaine"
Engine: 350 tpi
Transmission: 700r4
Axle/Gears: 3.27
DA WE yes
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Old Apr 16, 2006 | 06:29 AM
  #8  
xplane's Avatar
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From: Kansas
Car: 85 camaro sport coupe
Engine: 2.8 MFI
Transmission: v6 700R4 wish it was a 5spd Stick
Axle/Gears: Stock non posi 3.42s
so asking out of pure curiosity a 4th gen firebird WS6 is in theory a IROC level car? even if no what were the equivilent levels of firebirds in relation to the camaro? such as SC - firebird, formula - Z28, TA - IROC? did i guess right? or did the firebird even have a IROC level car? i dont know the birds real well.
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Old Apr 16, 2006 | 07:10 AM
  #9  
jamon8's Avatar
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From: Southern IL
Car: 88 GTA "Cocaine"
Engine: 350 tpi
Transmission: 700r4
Axle/Gears: 3.27
I dont know what you are asking could you dumb it down for me
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Old Apr 16, 2006 | 07:25 AM
  #10  
DJP87Z28's Avatar
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From: Florida
Car: 1987 Black IROC-Z (SOLD)
Read the Tech data on this site and it will explain the differences over the years.
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