91Z28 110-145 MPH speedo conversion
07-30-2005, 12:02 AM
#4
I am still awaiting on my 145 MPH unit to arrive. I've been looking at pics of them and it seems like the 130 marker is about where the 110 is on mine. The speedo already needs to be adjusted due to a 3.42 LS1 rear being put into the car, and I wonder if I take it somewhere to be adjusted if they can just fix it in one adjustment?
07-30-2005, 07:19 AM
#5
Supreme Member
Join Date: May 2001
Location: Your neighbor's hood, MD
Posts: 2,228
Likes: 0
Received 2 Likes
on
2 Posts
Car: 1987 Camaro Z28 IROC-Z
Engine: 5.7L TPI
Transmission: T5
Axle/Gears: 3.42:1
The speedo is not adjustable. You will need to change the speedo sender in the transmission.
07-30-2005, 12:12 PM
#6
How much would that cost? I have a T56 transmission and as soon as I get this 145 MPH unit in I would llike to have it reading accurate. I though that 91 cars used a dakota digital box and it would just require some programming? I am actually pretty stupid when it comes to stuff like this though so I could be WAY off.
07-31-2005, 09:58 AM
#7
Supreme Member
Join Date: May 2001
Location: Your neighbor's hood, MD
Posts: 2,228
Likes: 0
Received 2 Likes
on
2 Posts
Car: 1987 Camaro Z28 IROC-Z
Engine: 5.7L TPI
Transmission: T5
Axle/Gears: 3.42:1
I was assuming you were using an oem transmission, AFAIK you will need a DD box to translate.
Thread
Thread Starter
Forum
Replies
Last Post
darwinprice
Organized Drag Racing and Autocross
17
10-11-2015 11:51 PM
