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Old Aug 5, 2001 | 05:27 PM
  #1  
85roc's Avatar
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From: Port Orange, Florida, USA
Speedometer

New to the IROC group and wonder why my 85 iroc speedometer only goes to 85. Also where can I get parts at the best price, like the IROC decals etc and the emblem on the front spoiler?. What kind of gas mileage should I get from this car? I also noticed that the rims are marked front and rear and the rear tires are a little bigger, is that correct?

Thanks, Tom
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Old Aug 5, 2001 | 07:48 PM
  #2  
Jason E's Avatar
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From: Sarasota FL
Car: 99 WS6 / 00 SS / 11 CTS-V / 13 300
Engine: LS1 / LS1 / LSA / 5.7 Hemi
Transmission: 4L60E / T-56 / 6L80E / W5A80
Axle/Gears: 3.23 / 3.42 Auburn / 3.23 / 2.62
All '85 IROCs came from the factory with 85 MPH speedos. I BELIEVE (correct me someone if I am wrong) that the 145 MPH speedo was added in mid-'86 to TPI-only cars.

As for stickers and emblems, people tend to run to Classic Industries (order the catalog at www.classicindustries.com). HOWEVER, dealers can still get quite a bit of this stuff, and are 9 times out of 10 cheaper! Consult your dealer before you buy items through mail-order.

Finally, the car is rated for 16/24 for MPG...also, the front and rear tires are the same size (or should be)...P245/50/VR16 Goodyear Eagles were the factory tires...the reason for the Front and Rear marking is because the offset (??) is different for the front and rear wheels.

------------------
Jason E

'89 Camaro RS
-Medium Grey Metallic
-2.8, A4, T-tops, 92k miles
-Hypertech chip, Accel wires/coil/K&Ns
-Alpine 60x4 and Bostons

'97 Z28
-30th Anniversary package (white with orange stripes)
-LT1, M6, t-tops, 44k miles
-Eclipse CD and 10" Aluminum sub in JL Audio Stealth box, Boston RM speakers, Xtant 403a amp

Speed Kills...Wanna live forever? Drive a Ford.
Long Live #3...
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Old Aug 5, 2001 | 08:01 PM
  #3  
Willie's Avatar
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From: Tucson, Arizona USA
Car: 1987 Z28 Convertible
Engine: 305 TPI
Transmission: 5-speed
<font face="Verdana, Arial" size="2">Originally posted by Jason E:
I BELIEVE (correct me someone if I am wrong) that the 145 MPH speedo was added in mid-'86 to TPI-only cars.</font>
Late 1986, otherwise correct!!

<font face="Verdana, Arial" size="2">...the reason for the Front and Rear marking is because the offset (??) is different for the front and rear wheels.</font>
Righto! The front wheels are offset further out.



------------------
Willie

Supercharged 1987 305 IROC-Z, Daily-Driver, Emissions-Legal.
Former Paxton (6-psig) with 50-hp nitrous: 12.043 @ 112.86 mph.
ATI D1SC (10-psig): 12.056 @ 116.62 mph.
All stats are altitude corrected for 3,100 feet using NHRA's Altitude Correction Table.

http://willie.camaro-firebird.org/

1987 "20th Anniversary Commemorative Edition" Z28 Convertible -- Super Chevy Show Class Winner, 1998.
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Old Aug 6, 2001 | 01:01 PM
  #4  
86NiteRider's Avatar
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From: Somewhere around the South Side of Chicago just crusin' in one of the Niteriders
Car: 92RS 25th Anniv./88 IROC Z28 Vert
Engine: 305 TBI w/Tpi Air / 305 TPI
Transmission: 700r4/700r4
Axle/Gears: Posi
Willie, can that late '86 speedo work on a '86SC produced at Van Nuys in Nov '86 without major changes?

------------------
86 Camaro Black SS Coupe, T Tops, Flowmaster, Custom Paint, Dunlop Road Kings S/R tires, Wheel Country Directional Chrome Wheels,new charcoal & gray interior including seats and door panels, new carpet and headliner, complete front end suspension rebuild, new Valve seals, and more mods to come
http://www.angelfire.com/sports/niterider/86camaro.html
Morgan_Andre@hotmail.com
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Old Aug 6, 2001 | 02:22 PM
  #5  
SlowCamaro88SC's Avatar
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it can work on any pre-90 cluster. I have a '86 iroc 145 mph speedo, '87 iroc fuel gage, stock '88 tach and oil and stock temp and amneter.
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Old Aug 7, 2001 | 02:18 AM
  #6  
Kevin91Z's Avatar
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From: Orange, SoCal
Car: 1990 Pontiac Trans Am
Engine: 355 TPI siamesed runners
Transmission: Tremec T56
Axle/Gears: 12-Bolt 3.73
Any 82-89 Camaro speedometer works in any other 82-89 Camaro. Just swap the speedo unit, its a direct plug-n-play deal.

------------------
1991 Camaro Z28
5.7L 5-Speed (originally 305)
13.23 @ 107.62 MPH
Southern California
Member: SoCal 3rd Gen F-Bodies
Webmaster: SoCal F-Bodies
-=ICON Motorsports=-
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Old Aug 7, 2001 | 06:57 AM
  #7  
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From: Readsboro, VT
Car: 85 IROC-Z / 88 GTA
Engine: 403 LSx (Pending) / 355 Tuned Port
Transmission: T56 Magnum (Pending) / T5
Axle/Gears: 3.42 / ?
Here's my 85's gauges. The gauge cluster is out of an 89 IROC, and the overlays are Macewen pieces. I got a great deal on the gauges from some guy in Arizona ( ) and I'm quite happy with them. Unfortunately, I'm going to do a T56 swap soon and I'm afraid that I may wind up going to a digital cluster or a custom Autometer setup.

------------------
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
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Old Aug 7, 2001 | 06:58 AM
  #8  
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From: Readsboro, VT
Car: 85 IROC-Z / 88 GTA
Engine: 403 LSx (Pending) / 355 Tuned Port
Transmission: T56 Magnum (Pending) / T5
Axle/Gears: 3.42 / ?
I guess I forgot the pic.

The server at work won't refresh the page, so I can't get to my old message to edit it, so you get to suffer with another post.



------------------
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
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Old Aug 7, 2001 | 07:50 AM
  #9  
Willie's Avatar
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From: Tucson, Arizona USA
Car: 1987 Z28 Convertible
Engine: 305 TPI
Transmission: 5-speed
<font face="Verdana, Arial" size="2">Originally posted by Jim85IROC:
...I got a great deal on the gauges from some guy in Arizona ( )....</font>
Hmmm.... I wonder who????

Willie

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