Speedometer calibration???

Reply Subscribe

Thread Tools

Search this Thread

Jun 12, 2014 | 12:29 PM

#11

FXDXTSport

Supporter

Joined: Oct 2006

Posts: 2,565

Likes: 638

From: Washington State

I have the TTS Master Tune. My speedo (and odometer) were 4% high (read 73 at 70). Used the TTS to raise my speedo calibration # from 2121 to 2200 and the speedo is now dead on.

Jun 12, 2014 | 01:44 PM

#12

dirtdobber

Elite HDF Member

Joined: Jul 2007

Posts: 4,749

Likes: 16

From: sand mountain Alabama

Amazon.com: Dakota Digital Electronic Speedo Adjust Module SIM-1: Automotive

Easiest way to do it.

Jun 15, 2014 | 08:10 PM

#13

Rich67

Thread Starter

Road Captain

Joined: Apr 2011

Posts: 529

Likes: 1

From: Illinois

Quote:

Originally Posted by dirtdobber

Amazon.com: Dakota Digital Electronic Speedo Adjust Module SIM-1: Automotive

Easiest way to do it.

That link was for up to 06 models,but thanks. I called Namz they showed one from Dakota digital for 07 and up but the customer service guy I talked to said it was for when changes were made, kinda the way I took it it wasn't for just adjusting stock sit-up, which I don't understand. I have a SE tuner but I don't think I can calibrate speedo with it, I'd like to have a PV tuner but not right now, thought I might get one if I did more motor work down the road.

Last edited by Rich67; Jun 15, 2014 at 08:14 PM.

Jun 16, 2014 | 12:09 AM

#14

ke5rbd

Road Warrior

Joined: Apr 2010

Posts: 1,648

Likes: 37

From: Monroe, Louisiana

Quote:

Originally Posted by EasTexUltra12

It's not just HD. As far as I know most of the metric bikes are the same way. I know my Honda VTX 1800 was. I'd bet that there was a legal reason. It's too wide spread among the manufacturers and too easily fixed. I've been told that the Rushmore bikes do NOT have a speedo feature on the built in GPS. Harley doesn't want you to know how far off the speedo is. According to my Garmin, my Ultra was 4mph off. Fixed it with the PV tuner.

David

My 14's GPS has a read out on the bottom that is the same as the speedometer. It may not be from the GPS but from the BCM. Haven't checked it to standard GPS yet. Have a PV on it so will adjust if off. I will bet it is off now that I think about it.

Jun 16, 2014 | 12:45 AM

#15

Arizona

Ultimate HDF Member

Joined: Dec 2006

Posts: 5,878

Likes: 17

From: The Desert SouthWest

Nearly all H-D's read 3 mph faster than true speed. It's always been this way. Saves you a ticket, relax and enjoy the ride.

Jun 16, 2014 | 01:14 AM

#16

dirtdobber

Elite HDF Member

Joined: Jul 2007

Posts: 4,749

Likes: 16

From: sand mountain Alabama

I did not realize it was for a 06 up. i will check to see which one I have. I have it on a 05 Dyna super Glide.
This what Dakota says:
Fits Harley Davidson models:

1995-2003 Sportster Models
1996-2006 Softail Models
1996-2005 Dyna Models
2006 and earlier Touring models with Factory Electronic Speedometer
2007 and later Harley models require hardwiring into stock harness, speed correction can be made up to Harley's factory margin of error, typically 3-5% from the actual speed reading. If correction is made beyond this, it may result in the loss of the 6th gear indicator light and cruise control.