Smart Tune Pro clarification
Road Master
Joined: Feb 2021
Posts: 1,084
Likes: 481
From: Phoenix Arizona
As in many other threaads about a bolt-on tuner VS dyno tune.
Consider the costs. What ever "magic" happens with tuners and the auto adjusting of the ECM ( yes folks, the modern ECM have the ability to adjust automatically), if you get some increase, it's good.
A dyno tune is better. $550-$750+
A dyno tune is STATIC. It adjusts for that day: air, temp, humidity, elevation and even quality of gas. Once you have a change in elevation, temp, humidity, the TUNE is not perfect.
The ECM and any auto adjusting tuners allows for these changes to occur.
Good Day~
Consider the costs. What ever "magic" happens with tuners and the auto adjusting of the ECM ( yes folks, the modern ECM have the ability to adjust automatically), if you get some increase, it's good.
A dyno tune is better. $550-$750+
A dyno tune is STATIC. It adjusts for that day: air, temp, humidity, elevation and even quality of gas. Once you have a change in elevation, temp, humidity, the TUNE is not perfect.
The ECM and any auto adjusting tuners allows for these changes to occur.
Good Day~
Road Master
Joined: Jan 2024
Posts: 808
Likes: 194
From: Trinidad
That's basically what I was expecting, except the notion that it can only learn in the Closed Loop area.
I expected that the only way that the ECM gets changed is if you do a Smart Tune or Auto Tune session on your tuner, recording data, then merging the maps and re-writing to the ECM. Since the tuner is the only device that actually communicates with the ECM, that surely had to be the only way to refine the tune closer to optimal, without having to start over from scratch.
But surely that recording session applies to the Open Loop area as well? When you're running a Target Tune-enabled or Smart Tune-enabled calibration?
I expected that the only way that the ECM gets changed is if you do a Smart Tune or Auto Tune session on your tuner, recording data, then merging the maps and re-writing to the ECM. Since the tuner is the only device that actually communicates with the ECM, that surely had to be the only way to refine the tune closer to optimal, without having to start over from scratch.
But surely that recording session applies to the Open Loop area as well? When you're running a Target Tune-enabled or Smart Tune-enabled calibration?
Road Master
Joined: Jan 2024
Posts: 808
Likes: 194
From: Trinidad
very good point, only way to do that, is to look for knock and minus timing, but , still not optimum, of have built in cylinder pressure monitors in the future to optimize ignition timing.
Club Member
Joined: Mar 2009
Posts: 66,128
Likes: 51,461
From: Niles Canyon Ca.
Let me pose a quick question, I have a chance to pick up a stock M8 headpipe and the complete SE smart tune system for $80 off a wreck getting parted out.17 Road King has the black SE tuner already and doing a mild cam later. Worth my time & effort for one that isn't getting run hard ?
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Grand HDF Member
Joined: Nov 2017
Posts: 4,252
Likes: 3,135
From: Texas
If you're asking me, I'd grab it. If you're installing it on a bike that already has a stock headpipe, you'd be way money ahead, especially if it has a tuner already. I do think it's a good product, just marketed over the top. Make sure you get the O2 sensors as well, and the front cylinder extension cable if it has one.
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