Tuner Comparison Question
Road Warrior
Joined: Feb 2011
Posts: 1,342
Likes: 8
From: Milwaukee, WI
Maybe, maybe not. At this time, I am pretty new to the bike scene and actually tuning it myself might be a little much for me. Initially, I will definitely hand it off to someone that is capable of tuning the bike professionally. Later on, if I find I like it, I might tweak it more to my liking or not. Not sure about that. How is the SERT for something like that where you are handing it over to someone for tuning? As I understand it, you connect the module and when you disconnect it, there are no extra piggy back units or what not and the tune is written to the ECM itself. Am I correct?
Why can't you tune with SERT and do it WITHOUT the dyno?
Why can't you tune with SERT and do it WITHOUT the dyno?
How is the SERT for something like that where you are handing it over to someone for tuning? As I understand it, you connect the module and when you disconnect it, there are no extra piggy back units or what not and the tune is written to the ECM itself. Am I correct?
Why can't you tune with SERT and do it WITHOUT the dyno?
Why can't you tune with SERT and do it WITHOUT the dyno?
Thread Starter
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Road Master
Joined: Oct 2010
Posts: 958
Likes: 0
From: Hartford, WI
I went to an independent shop and they mentioned the SERT as an option so I think that they too can tune it.
Road Master
Joined: Jul 2010
Posts: 1,051
Likes: 7
The SERT allows the user, whether it be dealer or driver, to modify pretty much every single parameter in the electronic fuel injection system on the Harley Delphi EFI, which is what is on your sporty. I'm talking EVERY parameter. However, it requires extensive knowledge of that system to make any changes that are worthwhile - and literally it is like filling in numbers on spreadsheets. It is incredibly powerful, but just as complex. Without having a real, live dyno to check your changes as you make them, with the SERT you'd have to change something, drive it, evaluate your change, then hook it up again and again and again and again....
If you don't think you'll be making many mods to your engine, and you have a competent dyno tuner in your area, it is a great way to ensure your bike is producing the most power it can for that setup. Or you could ask the guy to tune it for smoothest power band, or best fuel economy... up to you but generally it is done for highest horsepower or torque.
IF you'll be making regular changes, SERT is not for you, but something that can either learn on it's own - there are more of these every day (Cobra/Tmax/autotune) - or something that is easy to download new maps (spreadsheets/tables) that you can evaluate by the seat of your pants. The Power Commander is just one example of this.
I have ZERO experience with the TTS or Powervision. The guys on the vrod forums like them both and they're CRAZY about tuning.
If you don't think you'll be making many mods to your engine, and you have a competent dyno tuner in your area, it is a great way to ensure your bike is producing the most power it can for that setup. Or you could ask the guy to tune it for smoothest power band, or best fuel economy... up to you but generally it is done for highest horsepower or torque.
IF you'll be making regular changes, SERT is not for you, but something that can either learn on it's own - there are more of these every day (Cobra/Tmax/autotune) - or something that is easy to download new maps (spreadsheets/tables) that you can evaluate by the seat of your pants. The Power Commander is just one example of this.
I have ZERO experience with the TTS or Powervision. The guys on the vrod forums like them both and they're CRAZY about tuning.
Road Master
Joined: Jul 2010
Posts: 1,051
Likes: 7
Yeah, this is simply completely false, both about the dealer and the AFR, but at least the spelling is correct. All of our EFI bikes run anywhere from about 8:1 to 15:1 AFRs depending on the situation at the moment.
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Cruiser
Joined: Jan 2010
Posts: 180
Likes: 0
From: USA
Auto tune is great if you make changes after the initial set up. I got a power commander 5 with auto tune, started with a base map and fine tuned it while riding over two days. It ran perfect. I added cams which is a big change for a tune. Auto tune adjusted and now runs perfect again. I don't have experience with other tuners as a previous post stated but I have had a power commander 3 and 5 without auto tune and a PC5 with auto tune and I will never go another direction. A dyno tune is always an option, but not necessary with auto tune. I am at 3600 ft. elevation and the canned map needed some trimming in the lower rpm and throttle positions. I have a great set up that runs smooth and powerful as it should and i wanted to shre the story. I vote auto tune and something self adjustable. PC5 +AT for me.