Speedometer Error/Correction

2stroke wrote:

Will either correct both speedo and odo?

Sorry but this will never happen. The speedo "calibrators" are programmable frequency (pulse) multiplier/divider circuits that go in-line between the speedo sensor in the transmission and the dash display. The display does it's own calculations to convert those pulses to MPH, kPH, miles, and km. With the calibrators you adjust the pulses up or down to get desired accuracy in speed or distance, but the 7% error between those displayed units is hard-coded into the display. You'll never get them both accurate at the same time.

Then it will correct the odometer, if I prefer that?

I prefer an accurate odo for use in fuel mileage range and service records.
I can calculate the speed in my head easy enough or use the gps.
Thanks for the input.

My Odometer is accurate after I installed and calibrated the SpeedCali. I use my odometer too for when I need to get gas. I get gas at 50 miles when I am commuting in the city. The SpeedCali gives a much more accurate range than before when it was way off from re-gearing.

2stroke wrote:

Then it will correct the odometer, if I prefer that?

Yes. The 12 O'clock Labs SpeedoDRD is programmable in 0.1% increments up to +/- 99.9% of the signal input. More info here if interested.

It's been my observation that most WRR owners opt for the SpeedoDRD, which is why I chose mine at the time. Some also choose to use HealTech's SpeedoHealer instead. This is the first I've heard of SpeedCali. Looking at their website, YouTube channel, and (lack of) internet presence they appear to be a new company. They all use similar technology to modify the signal between the speedo sensor and the display. The major differences appear to be in physical form factor, and programming interface & steps.

The speedo and odo will always be about 8% apart, but you can split the difference so one is 4%fast, and the other is 4% slow, which gets it pretty close.

I have my speedo at 100%, because I really font use the odo much.