Speedometer
10-05-2002, 04:03 PM
#1
Junior Member
Thread Starter
Join Date: Oct 2002
Location: Glenolden
Posts: 23
Likes: 0
Received 0 Likes
on
0 Posts
Speedometer
Hey I have a 1991 Camaro RS with the 110 mph speedometer I heard somthing about all I have to do is get the Z28 145 mph speedometer and it will show the correct speed above 110mph because I heard it's an electric speedometer. Yes my speed limiter has been removed and my camaro isn't stock so I have no problem with the 115mph speed limiter and I can do way above. Please e-mail me if you know anything about this dmxrules24@aol.com
10-05-2002, 08:53 PM
#2
Member
Join Date: Sep 2002
Posts: 271
Likes: 0
Received 0 Likes
on
0 Posts
I don't know about the 91, but the 83 145 mph speedometer is cable driven and is a straight swap for the old unit. If you have cable now, it should work OK.
if the speed reads wrong it is easy to fix that by getting a different speedo drive. You get a new gear and housing, just undo the 10mm bolt and change it out. The grear inside the transmission stays the same, but the one that connects to the speedo cable and it's bearing house change (must get them as a matched pair).
I found the Chevy dealer sold the real thing for around $50, but a transmission specialist wanted $110???
if the speed reads wrong it is easy to fix that by getting a different speedo drive. You get a new gear and housing, just undo the 10mm bolt and change it out. The grear inside the transmission stays the same, but the one that connects to the speedo cable and it's bearing house change (must get them as a matched pair).
I found the Chevy dealer sold the real thing for around $50, but a transmission specialist wanted $110???
10-06-2002, 01:09 AM
#3
Supreme Member
Join Date: Dec 2001
Location: Morris, IL
Posts: 1,418
Likes: 0
Received 1 Like
on
1 Post
Car: '91 t-top RS; '91 hrdtp Z28
Engine: LO3;383tpi
Transmission: 700r4;very nice 700r4
Axle/Gears: 4.10 zt posi, 3.70 auburn
Being a '91, it is electronically driven. I'm not sure if you can simply swap the 145mph in there or not. I would think that you would be able to, and would guess that the read out on the speedo is calibrated within. The pulse rate from the transmission is the same regardless on the speedo, which further backs my guess. If for some reason it did not read out correctly, you could always use a SGI-5 and recalibrate the signal. If you would need to do this, make sure you use a signal source going to the speedo AFTER the split to the ecm, other wise the signal going to the ecm will be incorrect(which will effect a few things).
10-09-2002, 05:57 AM
#4
Supreme Member
Join Date: Jul 2000
Location: Where the chicks absolutely LOVE the V-8 rumble!
Posts: 1,341
Likes: 0
Received 0 Likes
on
0 Posts
Car: 92 RS - Fully Restored w/Custom Int
Engine: LO3 with some mods
Transmission: T-5
Axle/Gears: 3.42 Richmond
The 110 and 145 guage clusters are interchangeable. As long as your drive and driven speedo gears are correct, just swap guage clusters and everything should work fine.
Thread
Thread Starter
Forum
Replies
Last Post
