ant0064
Active Member
You don't need to unplug any fuses or anything existing...just plug in the RC calibrator into an open port.
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NEW TIRE SPEEDO CALIBRATION?
- Thread starter nicodywill
- Start date
You don't need to unplug any fuses or anything existing...just plug in the RC calibrator into an open port.
I used the pulsar. Works good
No need to. You’re just adjusting tire size
nicodywill
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If using the pulsar, you had better remove it before taking it into the dealership.
If using the Rough Country unit, you do NOT need to remove it or change ANYTHING at all when taking it into the dealership.
If using the Rough Country unit, you do NOT need to remove it or change ANYTHING at all when taking it into the dealership.
chad202
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I ordered the speed calibrator feom
Rough country. I’m interested in the pulsar but just not now. I have e-torque. Some say it works with it and some say it doesn’t. I’ll just hold out another year or so to make sure all bugs are worked out.
Rough country. I’m interested in the pulsar but just not now. I have e-torque. Some say it works with it and some say it doesn’t. I’ll just hold out another year or so to make sure all bugs are worked out.
ExcursionDiesel
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The Pulsar works fine with E-Torque. There's a ton of misinformation on here. Hard to know by reading. Some may not like the sensitive throttle mapping which makes start/stop a lively event if you jump on it hard from a dead stop. Takes a little getting used to but the enhanced torque and 25hp is nice. I did some 0-60 test and the power increase is legit. 0.3 sec improvement. That equates to about 25hp.
BlckDT
Active Member
Rought Country unit just delivered today. Will be recal tonight
Thanks for this info as I was on the fence to switch out..... I'm not looking to tune, just adjust to my new tire size.Just calibrated my cooper at3 xlt 35/12.5 r20 the discount tire website said the tires height was 34.65in, but the speedo was off. I decided to measure from the road to the center of the hub and multiply by 2 to enter the height. It worked like a charm. My psi is at 35psi cold.
SilverSurfer15
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^yep, You’re supposed to use the physical tire height once it’s on the vehicle, not the advertised tire height. If your 35” nitto measures out to 34.4” on the truck (which it will), you use that number. So bust out the tape measure....
Not necessarily. I have 35x12.5 KO2s that measure 34.4” and I had to choose 33.25” on RC speedo calibrator for the speed to be accurate.
Mizzou.Mike
Member
I just ordered this one. Thanks for the heads up!
Bearman95
Active Member
I have 33 inch tires and I had to use 33.37 on a taser DT for it to be accurate! I checked the accuracy with three different sources!
I've searched and have found two different models that supposedly work with my year and truck. RC website has the tool for $219 while I have found one on amazon for $159. Ill be upgrading my tire size soon and my stock digital speedo is off from my actual speedo and want to recalibrate to try and fix both issues.
www.roughcountry.com
Speedometer Calibrator | Inline | Ram 1500/2500 2WD/4WD (2019-2023)
Ram Inline Speedometer Calibrator (18-21 Ram 1500)
Amazon.com: Rough Country Speedometer Calibrator for 2018-2020 Ram 1500 Truck - 90019 : Automotive
Buy Rough Country Speedometer Calibrator for 2018-2020 Ram 1500 Truck - 90019: Speedometers - Amazon.com ✓ FREE DELIVERY possible on eligible purchases
www.amazon.com
