Same as above. Thank yall!!!!

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91 Camaro RS, 305 TBI
No mods yet...Hopefully:
Convert to dual-cat with headers and Borla catback exhaust.
Edelbrock MPFI system.
RAM air hood & Z28 wing.
Z28 cam.
ABS system.
Positraction rearend with rear disc brakes.
Rebuilt front and rearend suspension with polygraphite bushings.
Strutbrace.
Rollbar.

 

85 MPH. They were all 85 MPH until about 86 or 87, I think... Then it was an option. I think all 87+ 350 cars got the 140 MPH speedo, but I am not sure.

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West Coast GM Shootout 2001!
1991 Camaro Z28
5.7L 5-Speed (originally 305)
13.25 @ 107.18 MPH
Southern California
Member: SoCal 3rd Gen F-Bodies
Webmaster: SoCal F-Bodies
-=ICON Motorsports=-

 

In 1986 there was a second design speedo head that showed 145 mph. According to my archives I have both Z28's and IROC's with this speedo head and one of the Z28's is an LG4 car. It looks like it was phased into the latter half of 1986 production.

 

I believe that the 82 used the same dual-needle setup that the 83-84 used. It went to 85mph, and had another needle facing the opposite direction and had corresponding kph instrumentation on the other side of the gauge. I thought it was sorta neet.

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The IROC Homepage
<A HREF="http://www.rit.edu/~jli4307/camaro" TARGET=_blank>
View the restoration of an 85 IROC</A>
"I didn't know a bored out Ford could go so slow" -Shenandoah

 

NO NO NO. I have a 82 Z28 and it has the 140 mph gauge. Try looking the a classic industries book. But anyway mine goes about 240 now. hehe If it has the 85 or whatever then its not a Z28. Maybe a Sport coupe

 

82-85's had 85 mph, and then in 86 they switched to 145. There was some government regulation or something that made it illegal to have a speedo that went higher than 85. If your car is in that first 82-85 series, then it has to be non-original. This regulation was for all companies too, if memory serves.

Vman

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1969 Camaro
383, Corvette heads, 700R4
Resto is in progress

1988 Toyota 4-Runner
aka the Parts Hauler

Previous owner of an 89 RS Camaro
2.8L V6, 700R4

 

As has been said the 82 Z would have had the dual needle spedometer... There were several different guage clusters around from 82-92. At least 5 different spedometers that I can remember seeing. Wasn't 85 the first year for the 140mph?

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Drew
The lone Thirdgenner of the Apocalypse
predatorman@hotmail.com
My Website
87 Iroc
91 Formula 14.3@98mph
91 RS Convertible
91 Firebird V6
92 S10
98 Grand Am GT

 

No. Late 86 first brought about the 145 speedo, at least in Camaros. I dunno about the Firebirds but I assume it was similar in time frame.

------------------
The IROC Homepage
<A HREF="http://www.rit.edu/~jli4307/camaro" TARGET=_blank>
View the restoration of an 85 IROC</A>
"I didn't know a bored out Ford could go so slow" -Shenandoah

 

if 85 mph was the max, is that what came on the vettes too?