Weight difference between 3rd and 4th gen.
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From: SYLVANIA,OHIO,USA
Car: 89 Formula
Weight difference between 3rd and 4th gen.
I was just wondering what the weight difference was between the 3rd and 4th gen, i know that the 4th gen weights less but how much less.
Thanks
MIKE
Thanks
MIKE
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Joined: Jan 2001
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From: Someone owes me 10,000 posts
Car: 99 Formula
Engine: LS1
Transmission: T56
Axle/Gears: 342
Re: Weight difference between 3rd and 4th gen.
Originally posted by Duke901
I was just wondering what the weight difference was between the 3rd and 4th gen, i know that the 4th gen weights less but how much less.
Thanks
MIKE
I was just wondering what the weight difference was between the 3rd and 4th gen, i know that the 4th gen weights less but how much less.
Thanks
MIKE
Supreme Member

Joined: Jan 2001
Posts: 7,164
Likes: 1
From: Someone owes me 10,000 posts
Car: 99 Formula
Engine: LS1
Transmission: T56
Axle/Gears: 342
Originally posted by Duke901
Ya i was just looking at the weight.
Ya i was just looking at the weight.
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Joined: Jun 2002
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From: NC
Car: 1991 Trans Am
Engine: 305 TPI
Transmission: 700R4
I don't think the 4th gens weigh less. Still depends on options though.
I looked up the curb weights for them:
1985 Z28 3,251 lbs
1987 Z28 3,062 lbs
1989 IROC-Z 3,107 lbs
1991 Z28 3,103 lbs
1993 Z28 3,373 lbs
1995 Z28 3,390 lbs
1997 Z28 3,442 lbs
1999 Z28 3,439 lbs
I looked up the curb weights for them:
1985 Z28 3,251 lbs
1987 Z28 3,062 lbs
1989 IROC-Z 3,107 lbs
1991 Z28 3,103 lbs
1993 Z28 3,373 lbs
1995 Z28 3,390 lbs
1997 Z28 3,442 lbs
1999 Z28 3,439 lbs
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You have to make sure you're weight ratings are automatic vs automatic or manual vs itself with same options, otherwise you can't really compare very well. I would think the 4th gen would be lighter(especially later on) because of the different body and engine materials used.
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