So I'm strongly entertaining purchasing one of these, and this topic may have come up in this forum before but honestly I did not have time to go through 500 pages of replies on this topic. So on to the story.....

I am doing some upgrades to the ride before the season starts and am looking to get a tuner. When I first read about the PV I was very interested. I had gone to my local HD dealer to pick up some essentials and the parts guy there tried talking me into the HD pro tuner and a dyno tune. I know a dyno tune is worth it but not sure if I have that money to spend. I dunno why he tried to talk me out of it, but regardless my question is can the tuners at a dealer use the PV to dyno tune the motorcycle or are they limited to their own HD tuners only? Thanks in advance and sorry for the long diatribe.

 

If you still have the 2004 Fatboy I'm not sure how much good it will do you as the PV relies on O2 sensor data to work it's autotune magic. I would think that the Power Commander III or Fuel Moto EFT Tuner would better serve you. If you decide to go with the Dynajet family of tuners, purchase it from Fuel Moto. He doubles the factory warranty and will provide the maps and customer service you will need.

The dealership is selling their product for obvious reasons; and it is probably all they are familiar tuning with. Try and find a couple of dyno tuners in your area and ask what they prefer to tune with.

I am sure that others more knowledgeable with offer the opinions as well.

 

I'm looking for the Harley Davidson textbook definition of Closed Loop Bias and how it influences the tune.
I'm not looking for a bunch of opinions, just straight answers.

Obviously you can't answer that question.

 

The clb tables just set the switching point. If your bike is a 2013 softail it doesn't have clb tables.

 

Hello, I'll be doing a stage 1 upgrade to my 14 Street Bob tomorrow. Intake, Bassani Road Rage 2 into 1 and of course the power vision. This is the third bike I have had this power vision on and It's been a while since I played around with map settings. I received a map from Fuel Moto for my setup. I do not care about MPG. The cruise range AFR is set at 14.5. Is there a standard AFR setting people are using for a performance map on a stage 1 bike? Thanks!

 

You're right, I stand corrected.
It has a Closed Loop Lambda Range setting with a min and max.(is this the same/similar as CLB?)

IIRC stock is set to 14.2 min with a 15.0 max, I'm assuming that the afr cells that fall within that range sends the ECM in closed loop and anything outside that range would be open loop.
If this is true I'm wondering how far (extreme) can I push these values?

Could I widen the values to bring more afr cells into closed loop (13.8-15.0)?
Could I shift the range from stock setting down to 13.5-14.5 bringing the richer values into closed loop?

Chances are I'm not going to mess with it (I don't see any reason to) but I'm just trying to get a basic understanding of the concept and how they effect that it has with PV.

Thanks

EDIT: While playing around with the Winpv I think I may have figured it out.

 

If I ride my bike while in Auto Tune, then shut the bike off without flashing the computer, does the PV store the data I've accumulated, or is it lost?

 

Data is saved until ECU is re-flashed or AutoTune is disabled.

 

Just finished put'n on SE AC, power duals and jackpots. Using PV from FM. Did first AT and had 127 hits with max 6% deviation VE. I'd say Fuel Moto hit it out of the park- bike has never ran this good. Thanks FM!!

 

Once again, you need to do some reading and learn the basics. Your cal doesn't even have a CLB table so why are you worried about it? All the CLB did was SLIGHTLY richen the AFR by manipulating the ECM. You could do the same by running down to .981 and be around 14.40. Still lean and still in closed loop. However, I wouldn't recomend running the 02's that high on the scale. If you want to be richer you need an open loop tune. CL is an EPA mandate. It's designed to run lean. Now the question really is why are you asking? The textbook Harley definition of all these tune words are posted all over the Internet. Google is your friend.