Electronic Ratio Adapter
Thread Starter
Drifting
Joined: Oct 2004
Posts: 1,976
Likes: 0
From: Patchogue NY
Electronic Ratio Adapter
Swapping my 2:59 for 3;54, and I bought an Electronic Ratio Adapter, as part of the group buy from ZIP. My question: What happens to the 2:59 speedo gear in the tranny, does the ERA over ride it, or do I have to go into the tranny and take it out?
Joe B.
Joe B.
Race Director
Joined: Jun 2001
Posts: 10,956
Likes: 681
From: Marlboro country MA
Joe,
I installed the Abbott ERA in my 92 A4 after swapping the 2.59 gears for 3.54's. After putting it in, the speedo works just fine. It's an electronic black box that intercepts the electronic signal sent out by the speedo gears and changes the frequency so as to correct for new gears. It has very fine gradations, so if you ever put in slightly larger or smaller tires, you can easily correct your speedometer. Good luck.
Mike
I installed the Abbott ERA in my 92 A4 after swapping the 2.59 gears for 3.54's. After putting it in, the speedo works just fine. It's an electronic black box that intercepts the electronic signal sent out by the speedo gears and changes the frequency so as to correct for new gears. It has very fine gradations, so if you ever put in slightly larger or smaller tires, you can easily correct your speedometer. Good luck.
Mike
Melting Slicks
Joined: Jul 2003
Posts: 2,384
Likes: 124
From: Reno/Sparks Nevada
The mechanical gear in the tranny drives a mechanical gear on the speed sensor. The gear spinning in the speed sensor is converted to an electrical signal. And as mentioned the ratio adapter intercepts this signal and converts it so the speedometer is calibrated correctly.
Art
Art
Thread Starter
Drifting
Joined: Oct 2004
Posts: 1,976
Likes: 0
From: Patchogue NY
Originally Posted by MrRenoman
The mechanical gear in the tranny drives a mechanical gear on the speed sensor. The gear spinning in the speed sensor is converted to an electrical signal. And as mentioned the ratio adapter intercepts this signal and converts it so the speedometer is calibrated correctly.
Art
Art
Thanks for your feed back gang.
Joe B.
