140 mph speedo
140 mph speedo
I was looking at this one T/A site and it said "With optional V-8s, a 140 mph speedometer was included. " Now that was posted under the 1986 catagory is this true? If so what was the optional V-8? and where can i get one? The speedo that is.
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Joined: Oct 2001
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From: Stevens Point Wisconsin
Car: 1991 Formula
Engine: 350 firebreathing inches of Small Block Chevrolet
Transmission: A 700R4 that has trouble handling the formentioned 350.
Aren't those really 145 speedo's. The highest number printed on them is 140 but there is another mark for 145, right? Just wondering.
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From: Doghouse ······································ Car: 1989 Formula 350 Vert Engine: 350 L98 Transmission: 700R4 Axle/Gears: B&W 3.27
Car: 87 Formula T-Top, 87 Formula HT
Engine: 5.1L TPI, 5.0L TPI
Transmission: 700R4, M5
Axle/Gears: Sag 3.73, B&W 3.45
Nope, the 140 speedo for T/A's, & Formula's were only good to 140 MPH, no xtra notch.
Senior Member
Joined: Oct 2001
Posts: 674
Likes: 2
From: Stevens Point Wisconsin
Car: 1991 Formula
Engine: 350 firebreathing inches of Small Block Chevrolet
Transmission: A 700R4 that has trouble handling the formentioned 350.
The Camaro's had 145 m.p.h. speedo's though right? Not sure but I thought the Camaro one was different than that.
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Most 1986 Z 28's come with the 85 mph speedometer. I am convinced that I might have one of the very first in the production 1986 Z 28's to receive the 145 mph speedometer. My VIN is after 171,000. My engine is the LB9.
Chet
Chet
Last edited by raptoryfm660r; May 24, 2008 at 09:16 PM.
Originally posted by raptoryfm660r
I am convinced that I might have one of the very first in the production 1986 Z 28's to receive the 145 mph speedometer. My VIN is after 171,000. My engine is the LB9.
Chet
I am convinced that I might have one of the very first in the production 1986 Z 28's to receive the 145 mph speedometer. My VIN is after 171,000. My engine is the LB9.
Chet

But I just noticed, my speedo says 140 with the extra notch like yours, except mine doesnt say 145 beside it, is mine the earliest version?
Last edited by Bralgar; May 16, 2002 at 11:21 PM.
Momar,
Whoever put the dash in was so excited about it being the first 145 mph dash put in, that its crooked. The shame of it. In 1986 the car was a Z 28 first and then the B4Z IROC-Z performance package was added for 659.00 and its even 8th down the option list. Tinted glass and front and rear carpet mats are higher up on the option list. GM's priories were crooked too.
I wanted a Z 28 first and at that time period it just so happened that it was the luck of the carrier pulling in on the dealer lot that it turned out to be an IROC-Z too. Go read the thread on one of the lowest Z 28 IROC-Z and it explains it much better.
Bralgar,
I am going to have to start paying attention when I see any 1986 Z 28's and what dash they do have and I would bet that if your dash (140 mph version) was here, it would be crooked too.
All 85 mph dash's have the straight version because the assembly line people had it down pat on putting them in.
Chet
Whoever put the dash in was so excited about it being the first 145 mph dash put in, that its crooked. The shame of it. In 1986 the car was a Z 28 first and then the B4Z IROC-Z performance package was added for 659.00 and its even 8th down the option list. Tinted glass and front and rear carpet mats are higher up on the option list. GM's priories were crooked too.
I wanted a Z 28 first and at that time period it just so happened that it was the luck of the carrier pulling in on the dealer lot that it turned out to be an IROC-Z too. Go read the thread on one of the lowest Z 28 IROC-Z and it explains it much better.
Bralgar,
I am going to have to start paying attention when I see any 1986 Z 28's and what dash they do have and I would bet that if your dash (140 mph version) was here, it would be crooked too.
All 85 mph dash's have the straight version because the assembly line people had it down pat on putting them in.
Chet
Uh, werent the other dashes practically the same just with a lower amount of numbers on the speedo? What would that have to do with it being mounted straight? I am not quite sure if you are trying to say it would be an 86 thing or what, but my friend has an 87 and an 89 with the 145 speedo and they are not like that.
Ben
Ben
Momar,
I have not been there but I truly believe that when your going at or near the 140--145 mph that dash looks really straight.
I believe it to be on error on GM assembly process for this dash being crooked.
I would almost be willing to bet that your friends dash is crooked too. Quality back then was not quite considered the norm yet.
Chet
I have not been there but I truly believe that when your going at or near the 140--145 mph that dash looks really straight.
I believe it to be on error on GM assembly process for this dash being crooked.
I would almost be willing to bet that your friends dash is crooked too. Quality back then was not quite considered the norm yet.
Chet
It might be an error, but an error made individually, not necisarilly on all of them. I know that his 87s was straight, but I have not seen his 89 enough yet to know being as he just got it and doesnt have it insured yet.
Ben
Ben
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Posts: 14,298
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From: Doghouse ······································ Car: 1989 Formula 350 Vert Engine: 350 L98 Transmission: 700R4 Axle/Gears: B&W 3.27
Car: 87 Formula T-Top, 87 Formula HT
Engine: 5.1L TPI, 5.0L TPI
Transmission: 700R4, M5
Axle/Gears: Sag 3.73, B&W 3.45
not sure on this, but from what I have seen, the last 6 didgets indicate the part in the series for the year when they were made.
Unfortunately most firebirds are 2xx,xxx, and camaros seem to be 1xx.xxx
so a car with the serial number of 171,000 would be a camaro # 71,000 for the year. a Firebird would be 271,000.
BUT the same number is also in the front of the VIN, Chevrolet being 1, and Pontiac being 2 (the second VIN didget).
with this being said, there are probably several cars in front of both of you with the 145 speedo.
I am just guessing here, does anyone know for sure and have something better than internet info for it?
John
Unfortunately most firebirds are 2xx,xxx, and camaros seem to be 1xx.xxx
so a car with the serial number of 171,000 would be a camaro # 71,000 for the year. a Firebird would be 271,000.
BUT the same number is also in the front of the VIN, Chevrolet being 1, and Pontiac being 2 (the second VIN didget).
with this being said, there are probably several cars in front of both of you with the 145 speedo.
I am just guessing here, does anyone know for sure and have something better than internet info for it?
John
Joined: Jul 2000
Posts: 7,386
Likes: 1
From: In a mint Third Gen!
Car: Red 87 IROC-Z28 T-Top
Engine: 5.7 Tuned Port Injection
Transmission: 700R4 Auto
Axle/Gears: BW 9-Bolt 3.27
Hmmmmph, I have seen lots of Third Gens and never saw a dash with that.
Upon closer inspection of my dash and speedo, I have come to the conclusion that your instrument cluster is not crooked, your pic is. The dash pad on my car and yours as well as everyone elses has an arc to it. And if you put a straight level line under that arc a wedge shape gap is left between the two. So, no, your dash is not crooked, mine has the same gapping but sitting in the driver's seat the dash looks straight, because it is. Who ever took the pic of your dash held the camera at a slight angle and aligned with the pad, thusly (I like using that word), your cluster looks crooked. And by the way my speedo does say 145, why I thought it didn't I'll never know.
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Joined: Mar 2001
Posts: 14,298
Likes: 197
From: Doghouse ······································ Car: 1989 Formula 350 Vert Engine: 350 L98 Transmission: 700R4 Axle/Gears: B&W 3.27
Car: 87 Formula T-Top, 87 Formula HT
Engine: 5.1L TPI, 5.0L TPI
Transmission: 700R4, M5
Axle/Gears: Sag 3.73, B&W 3.45
Another crooked thing to notice about our cars is the on door panels. Did you ever notice how on camaros and early firebirds with the rectangle plastic trim piece that the lock, remote cable mirror, and door handle all attach to looks crooked? Well, its actually straight to the bottom of the door. The top of the door gets higher as it goes toward the back of the car...
go fig
John
go fig
John
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Joined: Nov 2000
Posts: 861
Likes: 6
From: Marietta, GA
Car: '84 Z28
Engine: L69
Transmission: 700R4
Axle/Gears: 3.73
Originally posted by raptoryfm660r
That wouldn't work out because the 1986 Camaro Production was 192,219 total.
Chet
That wouldn't work out because the 1986 Camaro Production was 192,219 total.
Chet
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