Screaming Eagle Pro Super Tuner vs ?
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Novice
Joined: Sep 2006
Posts: 19
Likes: 1
From: Colorado Springs, CO
Screaming Eagle Pro Super Tuner vs ?
I am seriously considering a SEPST in the very near future. My bike is under warranty until October 2014. It's a '13 Ultra Limited, bone stock for now. Right now I'm looking to cure an occasional pinging issue but down the road I'm looking at improved intake, exhaust and possibly cams and more. I've looked at a couple of different forums and my head spins with all the possibilities for tuners. As I understand it, installation of a SEPST does not affect my warranty. Plus the dealer will dyno it to set it up properly. Are there better tuners that are user friendly for someone who has a laptop and is reasonably familiar with figuring out fuel maps? There is another certified dyno tuner here in Colorado Springs that is available after my warranty runs out who works with the SEPST and Power Commander.
Road Master
Joined: Mar 2013
Posts: 1,151
Likes: 14
From: Seattle
You might want to take a look at the PowerVision or TTS flash tuners. I have the PV and it's real easy to work with. It has an autotune feature that dials in the tune for you and you can tweak it as much as you want. I believe the TTS works in a similar fashion. These flash the Harley tuner.
There is also the Thundermax which replaces the Harley electronics and is supposed to work well. Once installed, you don't need to do anything else as it tunes while you ride.
If you are ok with being tuned to within 98% of perfection, then any of these systems will work fine for you without the need of a "great" dyno. Then again, these systems may do a better job than some of the "marginal" dyno guys. Good luck.
There is also the Thundermax which replaces the Harley electronics and is supposed to work well. Once installed, you don't need to do anything else as it tunes while you ride.
If you are ok with being tuned to within 98% of perfection, then any of these systems will work fine for you without the need of a "great" dyno. Then again, these systems may do a better job than some of the "marginal" dyno guys. Good luck.
Road Warrior
Joined: Aug 2009
Posts: 1,287
Likes: 592
From: USA
One thought if you are going to put different exhaust and intake on down the road you may want to put your tuner on then. That way it is dynoed with all the upgrades. If you put a tuner on now and get it dyno done you may have to do it again later when you do upgrades and that is not cheap. Unless money isn't an issue to you.
Road Master
Joined: Mar 2013
Posts: 1,151
Likes: 14
From: Seattle
One thought if you are going to put different exhaust and intake on down the road you may want to put your tuner on then. That way it is dynoed with all the upgrades. If you put a tuner on now and get it dyno done you may have to do it again later when you do upgrades and that is not cheap. Unless money isn't an issue to you.
Road Captain
Joined: Aug 2013
Posts: 518
Likes: 83
From: NC
According to the service manager at the dealer I frequent, any tuner including the add on things like the V&H FuelPak could possibly nullify the warranty. My understanding is that should an issue arise, like a problem with the engine, a tech connecting to the ECM with Digital Technician can identify if the ECM has been flashed and changed from stock. My dealer simply gives Harley or CNA as little info as possible on warranty repairs, but if a rep came out and inspected the bike and saw non-stock parts he could void the warranty especially if the modifications caused the problem. After market parts, tuner, and modifications seems to be a gray area as far as the warranty is concerned.
Club Member
Joined: Jun 2007
Posts: 45,429
Likes: 2,897
From: Bedford UK
Very few tuning shops will have expertise in every tuner, so it pays to use the one your favourite shop recommends. No point installing a Brand X and asking a Brand Y specialist to tune your bike!
So if you are happy using your dealer and he recommends a SEPST, then stay with that. Any dealer or tuner familiar with it will be able to tune your bike in future.
So if you are happy using your dealer and he recommends a SEPST, then stay with that. Any dealer or tuner familiar with it will be able to tune your bike in future.
Ultimate HDF Member
Joined: Mar 2012
Posts: 6,129
Likes: 143
From: Santa Cruz
If your good local tuners like the SEPT and your dealer will warranty it, that is your best option. PV/TTS/SEPT all have about the same features/abilitys. It is the guy using them that makes the difference.
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Road Master
Joined: Sep 2011
Posts: 771
Likes: 15
From: Cartersville, Georgia
Very few tuning shops will have expertise in every tuner, so it pays to use the one your favourite shop recommends. No point installing a Brand X and asking a Brand Y specialist to tune your bike!
So if you are happy using your dealer and he recommends a SEPST, then stay with that. Any dealer or tuner familiar with it will be able to tune your bike in future.
So if you are happy using your dealer and he recommends a SEPST, then stay with that. Any dealer or tuner familiar with it will be able to tune your bike in future.
For me, I would rather have the TTS (it seems to be the most common among good tuners). I currently have the SEPST which was part of the Stage 2 that was on the bike when I bought it. I couldn't justify spending another $500 to step up to a TTS after my FM107" build, so I stuck with it. Part of the 107" build was the 32-T to 30-T sprocket mod which obviously affected my speedo with the shorter (200) rear. The dealer that did my build said they could dial in the speedo with the SEPST .... nope ... the SEPST doesn't have that ability. The TTS does for sure though.
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Club Member
Joined: Jun 2007
Posts: 45,429
Likes: 2,897
From: Bedford UK
^^^^ ... these.
For me, I would rather have the TTS (it seems to be the most common among good tuners). I currently have the SEPST which was part of the Stage 2 that was on the bike when I bought it. I couldn't justify spending another $500 to step up to a TTS after my FM107" build, so I stuck with it. Part of the 107" build was the 32-T to 30-T sprocket mod which obviously affected my speedo with the shorter (200) rear. The dealer that did my build said they could dial in the speedo with the SEPST .... nope ... the SEPST doesn't have that ability. The TTS does for sure though.
For me, I would rather have the TTS (it seems to be the most common among good tuners). I currently have the SEPST which was part of the Stage 2 that was on the bike when I bought it. I couldn't justify spending another $500 to step up to a TTS after my FM107" build, so I stuck with it. Part of the 107" build was the 32-T to 30-T sprocket mod which obviously affected my speedo with the shorter (200) rear. The dealer that did my build said they could dial in the speedo with the SEPST .... nope ... the SEPST doesn't have that ability. The TTS does for sure though.
Road Master
Joined: Sep 2011
Posts: 771
Likes: 15
From: Cartersville, Georgia
I could be wrong (not a tuner expert by any means), but it is my understanding the SESPT (street) only allows downloading tunes to the ECM after EPA-compliant modifications are made and will store variables that can be downloaded and reviewed later .... basically, no changes can be made to the ECM other than with the "canned" tunes downloaded from the factory.
The SEPST (pro) is a full function tuner similar to the TTS that allows many parameters to be changed creating your own tune and recalibration of the ECM. Also neither of these is like a PC or PV style tuner that actually stays on the bike and manipulates the ECM.