speedo calibration
Thread Starter
Race Director
Joined: Jul 1999
Posts: 16,283
Likes: 104
From: Sun city CA
speedo calibration
I need my speedo recalibrated ? Just went from 4.11s to 4.30s... What does it normally cost to re-flash the chip for the correction ?
What does it cost to buy all the stuff it takes to program the chip ?
Thanks...
What does it cost to buy all the stuff it takes to program the chip ?
Thanks...
Le Mans Master
Joined: May 1999
Posts: 6,516
Likes: 1,303
From: Windermere FL
On 91 an earlier cars, there are only two good ways of calibrating the speedo. Best is to just get the proper gear set in the tranny tail housing to match the rear. Sorry I do not have the URL, but I have seen a link that had all the various gears and what ratios they were for. It is a bit of work to get the gears on, having to remove the drive shaft, tail housing, etc.
The other way is to get one of these electronic calibrators that you wire off the VSS. You flip dip switches to change the ratio.
Here is one I found but I have seen them much cheaper:
http://www.ntwonline.com/acb/showdet...=1973&CATID=15
They are usually about $140-$150.
The other way is to get one of these electronic calibrators that you wire off the VSS. You flip dip switches to change the ratio.
Here is one I found but I have seen them much cheaper:
http://www.ntwonline.com/acb/showdet...=1973&CATID=15
They are usually about $140-$150.
Racer
Joined: Dec 2002
Posts: 285
Likes: 5
From: Grass Valley, Ca.
Check out Abbott Enterprises Electronic Ratio Adapter (ERA). You can reach them @ (800) 643-5973 or www.abbott-tach.com. Simple 4 wire hookup. This is the same unit Ecklers sells in their catalog.
