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[pm203]

When changing exhaust, is a simple remap good enough? Or, is a dyno tune a must.

[HOGMIKE]

When changing exhaust, is a simple remap good enough? Or, is a dyno tune a must.

Not a must, but, how well do you want your bike to run??
A simple remap may suit you fine, just a crap shoot.
JMHO
 

[pm203]

With only 260 miles on the bike, should I wait for the engine to be broken-in first? I would prefer a dyno-tune,but my dealer is telling me that unless I am going to race the bike, the difference would be minimal. They did however do 2 dyno pulls just to measure the difference with the new pipes. HP increase was 8 and torque increase was .5.

[faceracer]

If you go for a setup like the Fullsac stage I or stage II Steve can provide you with a map for TTS master and your bike will run very good. I know because I ran both stages. Now could a dyno tune make it better? Sure but unless your going to the strip I doubt it is a real need. Just my 2Cents!!!!


FACE

[glens]

When changing exhaust, is a simple remap good enough? Or, is a dyno tune a must.

With only 260 miles on the bike, should I wait for the engine to be broken-in first? I would prefer a dyno-tune,but my dealer is telling me that unless I am going to race the bike, the difference would be minimal. They did however do 2 dyno pulls just to measure the difference with the new pipes. HP increase was 8 and torque increase was .5.

What's a "simple remap"?  Did the dealer install a "download" or did they sell you a "Super" or "Street" "tuner" and use that to load a calibration into the ECM?  Harley doesn't have any calibrations that are proper for different exhaust unless maybe you're using your stock headpipes with H-D slip-on mufflers.  But those calibrations are for also for a different air cleaner assembly, so unless you also installed one of their A/C units, you're still not going to get a "proper" calibration from them.

The TTS kit allows you to load a pretty-close base calibration and run a few data-logging sessions to get it dialed in really close yourself.  Or your dealer can use their dyno to do it for you, if they're halfway competent with their equipment.

I guess we really need some more information.  What have you installed and how has the ECM calibration been addressed so far?

[pm203]

Besides the new Bassani pipes, the dealer installed the SE race tuner. All they did was remap it. I already know that I should dyno-tune the bike. When it was at the dealer, that's what I thought they were doing. But, all they did was dyno the bike before and after the exhaust and race tuner install. I still want to dyno-tune the bike, but there are so many individuals telling me its not neccessary. So, the next question is do I let the dealer do it? Does anyone have any feedback on where or near Laconia NH I can get this done? Dr Dyno will be in town in June, do I wait for him?

[glens]

You don't really "install" a SE Race Tuner.  It temporarily connects to the data port on the bike and is used to recalibrate the ECM.  Since they sold you one, you should have it.  Did they sell you the cable set and software as well?  If not, buy them, too, and use them to run a few "smart tune" sessions yourself.  It'll be better than what you've got now (unless they did that for you) and maybe good enough that you won't "need" to "dyno tune" it.

[pm203]

I would only hope that they smart-tuned it. I do not have the cable. Just a small box of some sort.
Thank you for your advice.

[grc]

I would only hope that they smart-tuned it. I do not have the cable. Just a small box of some sort.
Thank you for your advice.

Hope springs eternal, but I'll bet they just loaded one of the maps on the CD and called it a day since it takes some amount of time to do proper smart-tunes.  The small box is the VCI (Vehicle Communications Interface), and you want to keep that safe and secure since it IS the SEPST.  Cables and the actual software CD are optional at additional charge.  
>P/N 32111-12 Software CD  $34.95
>P/N 41000018 Cable Kit  $45.95 (For use with ’11-later Softail models and ’12 VrSC and Dyna models)
OR
>P/N 32184-08A  Cable Kit  $45.95 (For use with ’01-later eFI XL and Xr, ’02-later eFI touring and trike, ’01-’11 VrSC™ and eFI Dyna and ’01-’10 eFI Softail models. Also fits VrSXSe Destroyer® race bikes).


Jerry

[pm203]

One more question. I have been told that on the 10 touring models, the 02 sensors need to be disconnected/disabled to tune the bike properly.Also need a Power Commander 5. Thoughts please?

[Midnight Rider]

One more question. I have been told that on the 10 touring models, the 02 sensors need to be disconnected/disabled to tune the bike properly.Also need a Power Commander 5. Thoughts please?

Only if you want to undo all the technology you paid for and run the bike like an '06 or earlier.  It will run in open loop just fine (no o2 sensors hooked up), but can't adapt to different fuels as well.  The tuning device you have is perfectly fine in the right hands.  The issue is finding the right hands.

As Jerry stated above, I'd bet you a $100 that the dealer downloaded some canned program that HD has.  Depending on what they put in there, it could be one of their street legal maps, or something else that is "close enough for horsehoes".  In your above post, you state that the pulls they did on the Dyno showed an increase of 8HP and .5 TQ.  Did you mean POINT 5, as in 1/2 of one or 5?  Typical numbers will be about a 10% increase on both sides over stock, with a header/muffler change and a decent map/tune.  That's kinda' the rule of thumb so to speak, but 10% is a realistic expectation.

[pm203]

Only if you want to undo all the technology you paid for and run the bike like an '06 or earlier.  It will run in open loop just fine (no o2 sensors hooked up), but can't adapt to different fuels as well.  The tuning device you have is perfectly fine in the right hands.  The issue is finding the right hands.

As Jerry stated above, I'd bet you a $100 that the dealer downloaded some canned program that HD has.  Depending on what they put in there, it could be one of their street legal maps, or something else that is "close enough for horsehoes".  In your above post, you state that the pulls they did on the Dyno showed an increase of 8HP and .5 TQ.  Did you mean POINT 5, as in 1/2 of one or 5?  Typical numbers will be about a 10% increase on both sides over stock, with a header/muffler change and a decent map/tune.  That's kinda' the rule of thumb so to speak, but 10% is a realistic expectation.

Yes,.5 meaning 1/2 increase in torque.

[Midnight Rider]

Yes,.5 meaning 1/2 increase in torque.

That sucks, and is an indicator that the map is not really right for the bike.  Does it run well?  No backfiring, throttle lag, dead spots, idle problems, etc?

There is nothing wrong with the PC V, but IMO, it is not the best solution available, and you have already paid for a tuning device that works well and maintains closed loop operation of the bike when applicable.

[pm203]

It ran pretty good. Idle was like stock and it had very little ,almost no decel pop.

[Midnight Rider]

It ran pretty good. Idle was like stock and it had very little ,almost no decel pop.

If you're happy with it, leave it alone.  If you want the best it can be with what you've done, then get it tuned with the SEPRT that you already bought.  But the dealer nearest you may not be the place to get it tuned.