Auto tuners and heat
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Cruiser
Joined: Oct 2006
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Auto tuners and heat
Read on HQ forum about a Tuner that was running different SERT maps for different conditions. Had a map for cooler running, one for medium (2up cool or 1up warm), and last a map for 2-up while warm.
Made me think of the autotuners(DTT and TMax). I remember that when the weather warmed there were a few complaints about bikesneeding some adjusting. Wondered howthat worked out? Was the base map still within theparameters for the tuner? What other adjustments did you have to make?
If the tuner is fairly static while riding it looks like even the auto tuners would have ping problems while riding in the warmest conditions...2-up in stop and gotraffic during the summerfor instance.Or ifthe ping was completely eliminated with timing and/or fuel thenyou would be rich and/or power robbing.
How wrong am I?....go ahead...I am married...I am used to being wrong.
Made me think of the autotuners(DTT and TMax). I remember that when the weather warmed there were a few complaints about bikesneeding some adjusting. Wondered howthat worked out? Was the base map still within theparameters for the tuner? What other adjustments did you have to make?
If the tuner is fairly static while riding it looks like even the auto tuners would have ping problems while riding in the warmest conditions...2-up in stop and gotraffic during the summerfor instance.Or ifthe ping was completely eliminated with timing and/or fuel thenyou would be rich and/or power robbing.
How wrong am I?....go ahead...I am married...I am used to being wrong.
Road Captain
Joined: Mar 2007
Posts: 520
Likes: 0
From: San Diego
RE: Auto tuners and heat
Dynatune (pcIII) has a module that you can add to the pcIII that allows 2 settings, they use as an example: one for economy and the other for performance with the flick of a switch, can be used for any settings though.
Banned
Joined: Mar 2006
Posts: 8,603
Likes: 10
RE: Auto tuners and heat
i am one of the ones who experienced a prob with my DTT in heat...actually it was not hot outside...it was the elevation i believe with thin air that made the DTT think and act goofy...while running it was perfect...it was at idle that the prob exists...seems as tho all the lookup tables didnt jive at idle with thin air and hotter temps...i think it was retired ted who confirmed my suspicions about thinner air means LESS air to cool the engine...only prob i had was it would not idle....then it learned the faulty stuff and the next two times i started it, it acted goofy but soon relearned the right stuff...the fix is to get the autotuned map you like and turn the autotune feature off, this allows it to run on your good map...it does not at that time try to look up anything from sensor input and just runs...at altitude it'll probly still get hotter, but it wont try to correct itself so it should idle...it probly will run abit rich which may in turn keep it cooler...so, a few of us are fixin to find out when we do the colorado trip...i'll keep ya posted
Road Master
Joined: Mar 2006
Posts: 791
Likes: 0
From: Arizona
RE: Auto tuners and heat
AZ,
Good dyno tuning can do wonders...if your engine is in good running shape! However, if your engine has flaws, dyno tuning will not solve your ping problem.
I recently had my engine upgraded from stock 88 to a Stage II 95" with new cams. I have had problem with pinging and detonating for quite some time. I had my RG dyno'd three times, and nothing seemed to help.
Finally, after the engine teardown, the mechanic found the cause for the detonation...unseated rings! He said that during the engine break-in period, if the rings are not seated correctly, they could cause problems down the road. Well, mine apparently were not seated properly. That allowed the oil to seep through, thus it turned into carbon on top of my pistons.
Now, after the 95 rebuild, my RG runs awesome one again! No more pinging or detonating!
Hope this helps!
Good dyno tuning can do wonders...if your engine is in good running shape! However, if your engine has flaws, dyno tuning will not solve your ping problem.
I recently had my engine upgraded from stock 88 to a Stage II 95" with new cams. I have had problem with pinging and detonating for quite some time. I had my RG dyno'd three times, and nothing seemed to help.
Finally, after the engine teardown, the mechanic found the cause for the detonation...unseated rings! He said that during the engine break-in period, if the rings are not seated correctly, they could cause problems down the road. Well, mine apparently were not seated properly. That allowed the oil to seep through, thus it turned into carbon on top of my pistons.
Now, after the 95 rebuild, my RG runs awesome one again! No more pinging or detonating!
Hope this helps!
ORIGINAL: Arizona
Good question, I'll be watching this thread...
Another ??? - does a good dyno-tune eliminate pinging?
Good question, I'll be watching this thread...
Another ??? - does a good dyno-tune eliminate pinging?
Thread Starter
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Cruiser
Joined: Oct 2006
Posts: 104
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From:
RE: Auto tuners and heat
Thanks for the honest reply Brian. So many want to validate their purchase that you get positive feedback when there are issues.
Be very interested as to how your bike handles the Colorado elevations. I would think the thinner air in addition to maybe providing less coolingas Retired suggestedwould also be less dense and would need different air fuel settings.
That is sorta the crux of my question though.....are the autotuners able to compensate for climate changes without a lot of mods to the tuner itself.
Be very interested as to how your bike handles the Colorado elevations. I would think the thinner air in addition to maybe providing less coolingas Retired suggestedwould also be less dense and would need different air fuel settings.
That is sorta the crux of my question though.....are the autotuners able to compensate for climate changes without a lot of mods to the tuner itself.
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RE: Auto tuners and heat
I have a ridden a little over 10K miles on my TM/AT equipped Dyna without any problems.
I rode it from OH to FL last November, 34deg w/15%humidity to 87deg w/90%humidity, no problem.
I live at sea-level and have been to 4000' without any problem.
Above 4000', I can't speak for yet, but plan on changing that before the end of the year.
IMHO TM/AT is what H-D should be equipping their bikes with from the factory.
Plain and simple, it just works.
I rode it from OH to FL last November, 34deg w/15%humidity to 87deg w/90%humidity, no problem.
I live at sea-level and have been to 4000' without any problem.
Above 4000', I can't speak for yet, but plan on changing that before the end of the year.
IMHO TM/AT is what H-D should be equipping their bikes with from the factory.
Plain and simple, it just works.
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Joined: Apr 2006
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From: Roswell, GA
RE: Auto tuners and heat
ORIGINAL: usecotton
Read on HQ forum about a Tuner that was running different SERT maps for different conditions. Had a map for cooler running, one for medium (2up cool or 1up warm), and last a map for 2-up while warm.
Made me think of the autotuners(DTT and TMax). I remember that when the weather warmed there were a few complaints about bikesneeding some adjusting. Wondered howthat worked out? Was the base map still within theparameters for the tuner? What other adjustments did you have to make?
If the tuner is fairly static while riding it looks like even the auto tuners would have ping problems while riding in the warmest conditions...2-up in stop and gotraffic during the summerfor instance.Or ifthe ping was completely eliminated with timing and/or fuel thenyou would be rich and/or power robbing.
How wrong am I?....go ahead...I am married...I am used to being wrong.
Read on HQ forum about a Tuner that was running different SERT maps for different conditions. Had a map for cooler running, one for medium (2up cool or 1up warm), and last a map for 2-up while warm.
Made me think of the autotuners(DTT and TMax). I remember that when the weather warmed there were a few complaints about bikesneeding some adjusting. Wondered howthat worked out? Was the base map still within theparameters for the tuner? What other adjustments did you have to make?
If the tuner is fairly static while riding it looks like even the auto tuners would have ping problems while riding in the warmest conditions...2-up in stop and gotraffic during the summerfor instance.Or ifthe ping was completely eliminated with timing and/or fuel thenyou would be rich and/or power robbing.
How wrong am I?....go ahead...I am married...I am used to being wrong.
If the max tune is done in cool weather (say, 60 degrees) with relatively light load (such as solo, flat terrain), that same tune may result in "pinging" (autoignition) when the bike is in hotter weather (say, 80+)and/or heavier loads (such as two-up, mountainous roads) because the combustion chamber's retained heat is hot enough to ignite the unburned combustible gases that remain in the combustion chamber.
One of the reasons for not placing great reliance on the absolute numbers ofdyno results is that a tune for max hp/torque on a dyno may not be a "rideable" tune--it may ping like crazy with two-up, hot weather, mountainous roads, etc. It's also one of the reasons why a good tune on a dyno takes so long since the bike should be operated under heavy loads at various rpm rangeswith WOT to see if pinging/knock can be induced under those conditions and, if pinging is induced, then adjustments to timing and/or fuel need to be done, andthat takes time (read $$$).
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