Completely confused - tuner related - Road Glide Forums
ECM/Fuel Management systems ECM/Fuel Management systems For Road Glides

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post #1 of 17 (permalink) Old 04-05-2013, 06:49 AM Thread Starter
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Completely confused - tuner related

Ok forum... I need something cleared up.

I am thinking of doing pipes, header and air cleaner on my 13 RGC. I was under the impression that if I do all this work that I should purchase a tuner (prefer an auto tuner).

Last night, several people said that isn't necessary. They informed me that all I need to do, is have the stealership download a map to the stock EFI unit.

Am I missing something?? ... I thought that is what an EFI tuner was for.

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post #2 of 17 (permalink) Old 04-05-2013, 06:53 AM
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You can have the dealer flash the ECM, but you will still be running lean and hot. A tuner will better serve you, if you plan on doing more changes in the future, an auto tuner will be good, you will be able to load a MAP close to the set up you have and the auto tune will do the rest. IMO you should definetly get a tuner.

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post #3 of 17 (permalink) Old 04-05-2013, 07:42 AM
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I'd opt for the tuner (Tmax).

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post #4 of 17 (permalink) Old 04-05-2013, 07:44 AM
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Originally Posted by dbell66253 View Post
You can have the dealer flash the ECM, but you will still be running lean and hot. A tuner will better serve you, if you plan on doing more changes in the future, an auto tuner will be good, you will be able to load a MAP close to the set up you have and the auto tune will do the rest. IMO you should definetly get a tuner.
+1 on what dbell said. Without a tuner, you will run way to lean, even with a flash from the dealer, and not be happy. Get a tuner, even one of the inexpensive one's from FuelMoto. Call them and they will be very helpful. I run a Power Vision from FuelMoto and really like it.

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post #5 of 17 (permalink) Old 04-05-2013, 07:45 AM
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Tuners and Dealer reprogramming will do the same thing. Except... the dealer is bound by EPA laws that will keep them from doing what you really want. A tuner is not bound by EPA laws, except maybe in California.

What you are doing with the mods is changing the way air/fuel flow into and out of the cylinders. If you do not adjust the amount of gas going in with it, you will not be running very efficiently. The tuner will adjust the amount of fuel to get you to the optimum fuel air ratio. A dealer tune, if they stick to the law, will probably run leaner because that is what it takes for EPA compliance. A basic tuner (no Auto) should be accompanied by a dyno tune, where they will adjust what the tuner does to optimize it to your exact bike. With an Auto Tuner (I have one), you get broadband 02 sensors that give the tuner more data than the stock sensors, and allow it to make the adjustments as you ride. If the tuner senses you are running lean/rich, it will change the amount of fuel being injected. All you have to do is the initial program that gets it close, the Auto Tune does the rest.

Bottom line, IMHO, get a tuner.

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post #6 of 17 (permalink) Old 04-05-2013, 08:17 AM Thread Starter
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This is exactly what I thought.

For now I am planning on slip on pipes, air cleaner and an auto tuner. I am still undecided on which tuner I will go with. I want to plan forward for future changes to the motor, so I don't want to replace the tuner in a year or two, because I purchased something that wasn't capable of using wide band sensors.

Right now I am thinking about PV with CFR slip ones.. But I am still very undecided.

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post #7 of 17 (permalink) Old 04-05-2013, 08:36 AM
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Good decision... I think you will be much happier with a tuner than a flash from the dealer. Yea you bike would run, but not as efficiently as with a tuner. Good luck as you move forward.

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post #8 of 17 (permalink) Old 04-05-2013, 08:44 AM
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I would go with either the Tmax or the Power Vision tuner. Good luck.

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post #9 of 17 (permalink) Old 04-05-2013, 10:08 AM Thread Starter
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Thanks for the advise

Bear, Prez, Kindred MC
13 FLTRX - Candy Orange - Daymakers, Custom Dynamics - LED turn signals, Kuryakyn Scythe mirrors, Iron Aces bracket, X-grip, floor board extensions, custom sundowner seat, black KW 8", PCV, auto tune, Stage 1 AC, Drago H-pipe, 4" Dragula mufflers.
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post #10 of 17 (permalink) Old 04-05-2013, 10:21 AM
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Quote:
Originally Posted by OldNerdGuy View Post
Tuners and Dealer reprogramming will do the same thing. Except... the dealer is bound by EPA laws that will keep them from doing what you really want. A tuner is not bound by EPA laws, except maybe in California.
EPA mandates at Federal level. Tuners are bound by EPA laws, hence "for off road use" labels. So technically they are illegal. But we all know this is rarely enforced - even in California.
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