Motor Week: 89 Iroc-Z v. IROC Race Care
Motor Week: 89 Iroc-Z v. IROC Race Care
From the media section, neat video.
http://www.youtube.com/watch?v=p4XjQGAnksE
13.9 from a stock 305? I thought 5.7 liter Irocs were running 14.0's?
http://www.youtube.com/watch?v=p4XjQGAnksE
13.9 from a stock 305? I thought 5.7 liter Irocs were running 14.0's?
Senior Member

Joined: May 2006
Posts: 627
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From: Glendale, CA
Car: 1992 RS
Engine: LS1
Transmission: T-56
Axle/Gears: 3.42
Re: Motor Week: 89 Iroc-Z v. IROC Race Care
Am I the only one that's shocked that a bone stock 305 TPI ran a 13.9? My just about full bolt on 91 305 TPI may at best do a 14.3
Supreme Member
Joined: Dec 2001
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From: I won't tell either
Car: 1986 Grand Prix TPI
Engine: 350 TPI
Transmission: 200 4R
Re: Motor Week: 89 Iroc-Z v. IROC Race Care
PMD built a 421 Catalina 2+2 that put down incredible numbers for the time, claimed it was bone stock, so take the numbers from a mfgr's supplied vehicle with a truck load of salt.
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From: San Antonio TX
Car: 1990 G92 IROC Z Miniram
Engine: 388cu 6.4 Liters
Transmission: G-Force T5
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Re: Motor Week: 89 Iroc-Z v. IROC Race Care
Back in 93, I had a friend and I saw it for myself an 89 5speed run 13.9 at 98mph with just an Edelbrock full exhaust system at Pomona. I think the 89 G92 T5 IROC were the fastest IROC's built.
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Joined: Oct 2010
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From: Orange Park, Florida.
Car: 1969 Chevelle SS
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Re: Motor Week: 89 Iroc-Z v. IROC Race Care
if you look in the media section on the motor trend article they did runs and it showed that 5 liter and 5.7 liter iroc camaros were just about the same in acceleration time. but then again, you cant bore and stroke a 305 to become a 383 like you can with a 350 iroc camaro can you?
Re: Motor Week: 89 Iroc-Z v. IROC Race Care
Due to the fact that 350's are so common, its cheaper to ditch the 305, buy a 350 an mod it or stroke it. I haven't seen too many stroked 305's and was advised against it with my 305.
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