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[tridentgeoff]

2007 motorcycles including CVO's have the active intake and exhaust system fitted as standard (to comply with the bureaucrat's) , most will be removed by folk looking for the true sound and power.
Question is:
Do the 2007 cycles for the States have the same system fitted?

[hdbrad03]

No, we just modify exhaust to our liking to get the sound.

[bisounours]

Read these threads :

http://www.cvoharley.com/smf/index.php?topic=9526.0

http://www.cvoharley.com/smf/index.php?topic=8845.0


Jacques

[Vosselman (NL - Europe)]

The european models (HDI - models) have active inlet and active exhaust.
Meaning a valve that is controlled by the ECM.
With Racetuner or DirectLink you can disable both valves.
For the inlet valve this means you can take off the aircleaner backplate without getting a DTC.
The exhaust will be open all the time without displaying a DTC. It will result in a (much) better power curve.

[bisounours]

The european models (HDI - models) have active inlet and active exhaust.
Meaning a valve that is controlled by the ECM.
With Racetuner or DirectLink you can disable both valves.
For the inlet valve this means you can take off the aircleaner backplate without getting a DTC.
The exhaust will be open all the time without displaying a DTC. It will result in a (much) better power curve.

 Welcome on the CVO website !

Thanks for these confirmations.
Concerning the SERT, I read that it's possible to enable or disable the active intake and exhaust in the online help of the sofware 4.6.2 ver. J.
See the attached file.

It seems You've these choice only the first time.

When programming is first started the ECM is checked for compatibility with the
following "Active Control" functions:
• Active Intake
• Active Exhaust
• Automatic Compression Release
If both the vehicle and calibration have any of these features available, a form will be
presented which allows the user to change the settings for these functions. Note that
not all features may be available for a given application. Unavailable features will be
grayed out and cannot be changed.

If both the vehicle and calibration have any of these features available, a form will be
presented which allows the user to change the settings for these functions.
We need to create this situation for present the form and set these functions.

How do you create this situation ? (both the vehicle and calibration have any of these features available)

Thanks
Jacques

[Vosselman (NL - Europe)]

I've done this once with Racetuner on a 2007 as we normally work with DirectLink.
If I remember correct you can always change the settings. BUT you need to use a HDI calibration and you need to have a HDI bike.
Everytime you reprogram the racetuner checks of you have a HDI bike and calibration and you will be asked if you want to change.

It's different with DirectLink. In DirectLink it's just part of the options in the calibration. So you can disable or enable before (re)programming.

[bisounours]

Thanks for your reply.

Best regards

Jacques

[BalDeagle]

Best bet is to stick a Power Commander on - which comes with O2 sensor eliminators, wack on a pair of True Duals - which removes the Oxygen sensors completely and put on a High Flow air filter - and put on an intake sensor eliminator at the same time. Job sorted.

 

Nige

P.S. Don't forget the Dynotune once the bike is run in.

[Vosselman (NL - Europe)]

Nige,

I have to disagree on this one.
Using a set of O2 eliminators is a step backwards in my opinion.
The stock 02 sensors work very good and the software can make them run a little richer (around 14.2).
Good mileage and rich enough for cruising.

[BalDeagle]

Nige,

I have to disagree on this one.
Using a set of O2 eliminators is a step backwards in my opinion.
The stock 02 sensors work very good and the software can make them run a little richer (around 14.2).
Good mileage and rich enough for cruising.

Interesting thought - most of the gearheads on the forum would reccomend an AFR around the 13.7mark. The Power Commander obviously adjusts the AFR itself so the need for the O2 sensors is eliminated.

The other (and bigger issue) is the way HD have set up the engines in their lean mode (14.7 AFR) and have then introduced the "Parade Mode" which kicks in when the engine gets too hot in low speed situations. This drops the RPM to about 950 and richens the AFR to supposedly cool down the engine. The down side of this is that as soon as you take the revs up to 1200 again the AFR reverts to 14.7 and will then go even leaner for a short while after, resulting in a drastically overheating engine and cooked heads. Obviously people living in hot climates will also suffer from this problem to a larger degree.

All in all I think I prefer the control of the Power Commander ( my oil temps currently don't go above 110C ).

All IMHO of course.

Nige

[Vosselman (NL - Europe)]

1. How does the PC self adjust without 02 sensors?
2. You can switch off parade mode with racetuner or directlink.
3. You can disable the use of the 02 sensors with racetuner or directlink and go open loop all the time. That way you can select whatever afr you like.
4. It's not only afr that controls temperature. Ignition timing has a lot of influence.

[BalDeagle]

1. How does the PC self adjust without 02 sensors?
2. You can switch off parade mode with racetuner or directlink.
3. You can disable the use of the 02 sensors with racetuner or directlink and go open loop all the time. That way you can select whatever afr you like.
4. It's not only afr that controls temperature. Ignition timing has a lot of influence.

I'm no techie so I wouldn't presume to get into an in depth discussion with you as you are obviously a professional at what you do. As I understand it the PC does not need the O2 sensors because it adjusts the AFR throughout the gear and rev ranges resulting in a nice flat AFR line throughout ( I'm thinking of the Dyno Sheets that I see here). Prior to the 07 bikes coming out there were no oxygen sensors and the PC was installed to give the same flat lined AFR. It seems from talking to various people that the Closed loop/open loop system is causing problems rather than helping to eliminate them.

I do of course stand to be corrected here. Anyone else that can add their .O2 cents worth to this discussion.

Nige

[Vosselman (NL - Europe)]

After disconnecting the stock 02 sensors, the stock 07 system is open loop. No possibility to self adjust. Depending on TPS-RPM-MAP it will deliver fuel.
With a PC you change the amount of fuel at specific TPS-RPM values. YOU (your tuner) has to tell the pc how much more or how much less. That amount of difference will be used since that time. No self adjust to age, wear or what ever. Without 02 sensors the system will also not correct for its own 'tolerances'. I've heard that the stock delphi system has a - or + 5% tolerance.

You can get that same flat afr line without the pc by changing the settings in the stock ecu. This is called the VE. Volumetric Efficiency. You tell the system how much air is passing the engine. Together with some constants and the load on the engine, this Efficiency is used by the ecm to calculate the amount of fuel.

I don't see any problems caused by the closed loop system. Or it must be caused by a base calibration that is way off. But that would be the same with a pc, if a pc is way off, you will have a bad running engine also.
But fact is that the stock closed loop system can modify the fuel delivery a lot. Put a stock 07 on a dyno, change mufflers and airfilter and ride the bike in closed loop, the afr will be corrected! Although you are riding in closed loop most of the time (depending on riding style), unfortunately you are not riding in closed loop all the time, so you need to have a good calibration to start with.

[Vosselman (NL - Europe)]

I don't say that the pc is a bad device. But power commander tuners just need to learn to use the racetuner or directlink.
The ones that are willing to learn / change, are very positive.

[BalDeagle]

Thanks for the information. It's always useful to read the views and opinions of a professional.

We'll have to try and call in and see you sometime on our way back from European Bike Week.

Nige