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[TBird]

Anyone using the PCV with Autotune. I just put the PCV on my SERG and was about to book a Dyno when I heard about this. Apparently you do not need to have your bike dyno'd it does it all automatically. Any comments would be appreciated. The Autotune module is $480.00 in Canada so I want to find out more about it before I spend the money, a dyno costs $300.00.

[Twolanerider]

Were it mine and I had to choose between a hardware add on (the autotune module) that only chases fuel settings for nearly $500 or a good tune that actually dials in fuel and timing on my bike for $300 there'd be no decision.  No "autotuning" device that only chases fuel (as they all do right now) will ever be as good as an actual good tune that dials in your bike to its hardware.

[Diamondback]

 

That said, no dyno can adjust for the eventual change in the bike (wear and tear), gas, air temp, humidity, altitude like the autotune can.

Done it both ways and the autotune is what I would go with.

 

[JustDennis]

I used a PCV with autotune and it worked very well on my bike.  As a matter of fact, I ran it for the last year and just removed it saturday to install a Mastertune TTS.  I want to give the TTS a try.

I like the PCV and really liked the feedback with the autotune module.

[boerne free bird]

Were it mine and I had to choose between a hardware add on (the autotune module) that only chases fuel settings for nearly $500 or a good tune that actually dials in fuel and timing on my bike for $300 there'd be no decision.  No "autotuning" device that only chases fuel (as they all do right now) will ever be as good as an actual good tune that dials in your bike to its hardware.

I've used ThunderMax, SSERT, and TTS on different bikes - and I have had significat improvement over stock with all of them. I'm a strong believer in open loop to adjust for variability in fuel - especially with today's fuel pool. I've tried tinkering myself with fine tuning, and learned that I'm very poor at it. Take the bike to a good tuner, who will dial in everyting, then run closed loop in your normal cruising range. But - I definitley agreee that it's a big mistake to assume software or hardware will get the results of a good tuner.

[Diamondback]

 

Plus a good tuner can and will adjust the timing marks to increase HP and torque which the autotunes don't do.  Primary reason why a good base map for ignition timing is essential for the autotunes to works well.

[grc]

That said, no dyno can adjust for the eventual change in the bike (wear and tear), gas, air temp, humidity, altitude like the autotune can.

Done it both ways and the autotune is what I would go with.

 

The dyno tuner doesn't have to adjust for wear and tear, air temp, altitude, etc.  The stock ECM already does that with the input from the various stock engine sensors, and with feedback from the O² sensors in closed loop mode as well.  A dyno tune doesn't eliminate the self correcting features in the ECM.  As for fuel quality, or lack thereof, I'm not aware of any special technology included with the PCV that will determine percent alcohol or octane rating.  

The best answer in my unhumble opinion is to get the fuel and ignition maps tuned by a good professional, then if you desire the tiny bit of extra benefit that a wide band "auto tune" device might provide, add one to work with the now optimized base map provided by that tune.  If you can only do one or the other, the good tune with optimization of ignition as well as fuel is a better approach.  As noted earlier, the so-called "auto tune" devices currently on the market do not fix the ignition issues common to the late model bikes.  


Jerry

[Diamondback]

 

That could be except that with the stock ECM from HD and either of my bikes could the change from high altitude, high heat and low octane to the desert heat and high octane be adjusted.  HD and it's regional troubleshooter could not fix the excessive pinging and terrible mileage at altitude.  Switch to aututune and the WB sensors and 13.8 AFR (with a base map designed around the parts) fixed all issues with the heat, pinging and poor performance.  With the switch both bikes power band was much better, gas mileage improved, heat reduced and no pinging.

That said, both of my bikes base map was apparently very close to "dyno" good.  With that the autotune worked well.

My expereince with the stock HD ECM is not a good one.  Could be why, Mastertune TTS, PC V and Thundermax (even the HD SSERT) are installed on a lot of CVO engines with good results.

I agree that the base map is essential for the bike to work and in fact, the dyno would provide the best base map (assumes the tuner knows how to make it work).

 

 

[laylonlor]

not all of us have access to a good tuner, so we have to go with what best fits

[Diamondback]

 

And thus the autotune system is the best alternative.  Most of us have great success with the PC V preconfigured systems.

 

[laylonlor]

only problem is 2010 bung is  a diff. size from the 09 bung, so  you have to do a little welding on the 10 models to use the auto tune

[Occam]

So is it safe to presume that canned maps for the above mentioned aftermarket tuning programs/hardware use stock(ish) ignition values?

[Diamondback]

 

With regards to Fuel Moto and I'm sure most of the others modify the ignition tables to match their "custom maps".  On my last two bikes the ignition maps were not the same straight from Fuel Moto.

At Fuel Moto, they dyno their "custom configuration" to get the optimal results.

 

[grc]

So is it safe to presume that canned maps for the above mentioned aftermarket tuning programs/hardware use stock(ish) ignition values?

I haven't had reason to check too many canned maps recently, but back when I did the typical PCIII map had no entries for the ignition map (including the one I got from Fuel Moto, btw).  If you want to know about any PC map in particular, download the map and the software from the PC site and check it out.


Jerry

[harleyguynv]

When I did my PCV with Autotune the map I got Fuel Moto had timing changes throughout most of the map. The maps that you get from the PC site are conservative. When I changed cams the auto tune changed the AFR's seamlessly, and adjusted the timing myself as needed. The PCV software adjustments are very easy including timing changes. You can also monitor different parts of the system within the ECM if you want. Like I've said before I have checked my maps on a couple of different dynos as I've put miles on my Auto Tune system and the dyno operators were very surprised on how accurate my map was compared to their dyno. It is surprising to see how much the AFR's change in the different weather conditions, especially the hot summer.