Print

Please login or register.
1 Hour 1 Day 1 Week 1 Month Forever
Login with username, password and session length

[HOGMIKE]

If I missed a thread here that addresses this issue, can someone point me in the right direction?
My questions: I had the dealer do a "Street legal performance calibration" along with a high-flow air cleaner. Exactly what changes were made to the ecm map? I am curious to what changed in the bike's programming. Does the timing move or change? Do the injectors change timing or amount of fuel?? If the ecm depends on feedback from the O2 sensors, is it looking to an a/f ratio of 14.5:1? and adjust richer or leaner to achieve that number?? I am sure there are people here (Steve C?) that can answer these questions and keep it in layman's terms!!
My bike runs fine, no real issues on driveability, but, is still HOT.
I am looking for ways to reduce the engine temp. This week we went on a long ride in cool weather, oil temps are about 240, and engine is still pumping out heat that cooks my wife's right ankle! Any information you all can provide will help me make decisions to counter this problem. I don't want to mess up the programming, but, at this point, I'm looking to add my CVO/fullsac mufflers, TTS tuner, and hope that would cure the problem. My own experience would say, get the air in, air out, richen up the mixture a taste, and that should take care of the problem. Any comments??

[GregKhougaz]

HogMike,

         
          Here's the thread to read:

09 FLTRSE3 Dyno Results:
http://www.cvoharley.com/smf/index.php?topic=27693.0

I can't tell you what the "Street legal performance calibration" does.  There are far more knowledgeable guys here.  I'm sure if you do a search here you'd find some info.  Steve Cole gave me some good advice, "Do all your mods, then tune."  Save $$$ that way.  14.5 a/f is very lean.  I'm running below 14.  240* is not too hot though, for an air cooled engine.   The rest of the exhaust mods you describe will cool things off.  Hope this helps. 

[HOGMIKE]

HogMike,

         
          Here's the thread to read:

09 FLTRSE3 Dyno Results:
http://www.cvoharley.com/smf/index.php?topic=27693.0

I can't tell you what the "Street legal performance calibration" does.  There are far more knowledgeable guys here.  I'm sure if you do a search here you'd find some info.  Steve Cole gave me some good advice, "Do all your mods, then tune."  Save $$$ that way.  14.5 a/f is very lean.  I'm running below 14.  240* is not too hot though, for an air cooled engine.   The rest of the exhaust mods you describe will cool things off.  Hope this helps. 

Thanks for the link. I added my modified mufflers today (Fullsac 1 3/4), and went for a little "test ride", dodging rain drops. Nice sound now, but, I'll have to take a longer ride with wife aboard to see if there is any difference in performance (I would guess not, until I do some other mods).
I wish we had a good tuner locally, but, I can always make a trip to AZ to get things dialed in. Like I said before, the bike runs well for a stocker, no real issues,but, it's kinda like driving a HONDA CIVIC, if you know what I mean!!! Thanks again for the link........Mike

[Texas 103]

Thanks for the link. I added my modified mufflers today (Fullsac 1 3/4), and went for a little "test ride", dodging rain drops. Nice sound now, but, I'll have to take a longer ride with wife aboard to see if there is any difference in performance (I would guess not, until I do some other mods).
I wish we had a good tuner locally, but, I can always make a trip to AZ to get things dialed in. Like I said before, the bike runs well for a stocker, no real issues,but, it's kinda like driving a HONDA CIVIC, if you know what I mean!!! Thanks again for the link........Mike

Hell,..Run over and see Steve @ Fullsac, he"s got a dyno and I belive he knows quite well how to use it>>>>Greg

[HOGMIKE]

Hell,..Run over and see Steve @ Fullsac, he"s got a dyno and I belive he knows quite well how to use it>>>>Greg

Funny you should mention that, I had planned to see him today, on the way back from Laughlin, but, got chased home yesterday because of rain starting .....oh well, just another excuse to make another trip to L.Havasu. I want to see what he's done to his new bike. Mike

[Jim Kerr]

Hell,..Run over and see Steve @ Fullsac, he"s got a dyno and I belive he knows quite well how to use it>>>>Greg

No doubt, Steve is the man on the Dyno. 

Does the timing move or change? Do the injectors change timing or amount of fuel?? If the ecm depends on feedback from the O2 sensors, is it looking to an a/f ratio of 14.5:1? and adjust richer or leaner to achieve that number?? I am sure there are people here (Steve C?) that can answer these questions and keep it in layman's terms!!

The answer is -- yes.  A good tuner will tweak just about everything.  The ECM controls everything and most functions can be modified with the SE Super Tuner or Master Tune.  You can change the speed the throttle opens, the timing and duration of the injectors, spark timing, fuel/air ratio, O2 sensor bias, turn on/off Automatic Compression Release (ACR), etc.  A good tuner can make your bike sing by tweaking these settings. 

My bike runs fine, no real issues on driveability, but, is still HOT.
I am looking for ways to reduce the engine temp. This week we went on a long ride in cool weather, oil temps are about 240, and engine is still pumping out heat that cooks my wife's right ankle! Any information you all can provide will help me make decisions to counter this problem. I don't want to mess up the programming, but, at this point, I'm looking to add my CVO/fullsac mufflers, TTS tuner, and hope that would cure the problem. My own experience would say, get the air in, air out, richen up the mixture a taste, and that should take care of the problem. Any comments??

There are a couple of things you can do to help with temp. 

1) Get rid of your Catalytic Converter if you have one!   CC's get hot.  Very hot.  This is probably what your passenger feels.  The heat will run directly up their right leg.  It is uncomfortable and dangerous.  Idling over leaves or dry grass can actually cause it to ignite. 
2) Change the fuel air ratio to add more fuel to the engine.  Stock bikes are set for 14.5:1 Fuel/Air ratio, which is peak EGT (exhaust gas temperature).  H-D has to do this in order to meet emissions requirements.  The canned SERT maps are set to keep it that way.  A tuner needs to enrich the F/A ratio in the programming without bypassing the O2 sensors (closed loop mode).  They do this in the mid range by changing the O2 sensor bias.  Others change the injector size in the program to make the computer think it has a different size injector than it actually does.   Just query anyone you work with about this stuff.  They should be able to clearly respond to questions about F/A ratios, timings, etc.  If they don't sound confident they probably are not competent.   

[HOGMIKE]

Thanks for all the info......I think at this point I'll ride the '09 in the winter and the evo in the summer!!!! It seems that I'll have to remove the cat sometime before the weather here heats up again (probably about March). I like the looks of a stock system, but I know there are tweaks you can do to let them breathe better, have done that with most all my bikes: (stealth). Even my Pan looks almost stock, but will eat most new bikes!
Like you said, get with a good tuner, tell them how you ride, what you expect and go from there. Thanks again for everyone's help.