Has anyone put their bike on a dyno to see how well tuned their bike is tuned with the fp3? I think they tune to 14.7 Afr but I always thought 13.5:1 was ideal. Is the fp3 tuning lean?

 

Here is a screenshot of the AFR tables from a 2014 Dyna with Big Radius 2-2 exhaust and standard baffle. You see that it is not just one single AFR across the range, instead 204 cells specifically tuned according to RPM and TPS/MAP. We create our tables for best performance and economy. However, you can change these tables to whatever you desire.

 

What if we auto tune? And is low pressure part or no throttle?

 

Anyone know what Afr the auto tune will tune to?

 

AutoTune does not work like that. It calculates and calibrates, the AFR tables do the tuning. Thus, the AFR in AutoTune does NOT reflect the AFR while the bike is running. Please review the information from our website below.

Introduction

One of the many benefits of the Fuelpak FP3 is the AutoTune feature. This feature allows users to precisely tune their motorcycle for their intake and exhaust combination, avoiding the costly and demanding dyno runs or the installation of additional equipment. AutoTune can also help international users tune their motorcycle for the specific fuel blends available in their area.
When to use it/not to use it:

AutoTune can be utilized where a Vance & Hines map is not provided or to further fine tune a specific intake and exhaust combination to the unique variations of an individual bike.
Most combinations can be cross referenced with one of numerous maps Vance & Hines provides. The AutoTune works best with an existing map from the Vance & Hines database. This will now utilize specifically tuned ignition tables, Accel Enrichment, Decel Enleanment, AFR (Air Fuel Ratio) Tables and Rev Limit changes, to facilitate calibrating the Volumetric Efficiency (VE) Tables. AutoTune calibrates the VE tables with a unique V&H developed algorithm for fast and accurate tuning.
AutoTune does NOT have the ability to tune for High-Performance camshafts at this time.

How it works:

To understand how AutoTune works, the differences between calibrating a bike's ECM and tuning a motorcycle must be defined. The ECM knows what volume of air is flowing through the engine for the stock intake and exhaust systems. However, when the intake and/or exhaust systems change, the Volumetric Efficiency of the cylinders change. AutoTune properly calibrates the Volumetric Efficiency Tables by utilizing the high precision range of the the factory narrowband O2 sensors to target the optimum Air Fuel Ratio (AFR) of 14.4. When the bike is in AutoTune mode it monitors the difference of the O2 voltages above or below the 14.4 desired AFR. These differences are recored, calculated and VE tables change. After calibration the FP3 can change the AFR. For example, richer AFR can be selected for better power and engine running, or a leaner AFR in some areas during light loads and cruising for fuel economy.
While running AutoTune, FP3 is calculating VE Table/tables and other aspects of the ECM settings. Which comprise the tuning of the motorcycle. These changes are saved and not made in real time. Volumetric Efficiency ables are modified AFTER "Apply Learned Values" or "Finish" has been selected. Then flash the calibrated map to the ECM.
How to Use It:

For better AutoTune results, the wider variety of riding conditions experienced populate more cells in the AutoTune tables. FP3 will populate the cells where you ride, fine tuning your map by calibrating the cells most frequently used. This can usually be accomplished in three 20-30 minute rides depending on the conditions in which the vehicle is ridden. When the vehicle is stopped and shutdown, the FP3 will suspend data acquisition and pick up where it left off on the next session.
Before starting an AutoTune Session, make sure you do the following. First, the FP3 must be plugged into the bike during the AutoTune process. After initialization, the phone and application do not have to be connected or running. Second, the bike reaches normal operating temperatures, otherwise data will not be collected. During the AutoTune process the Accel Enrichment and Decel Enleanment will be shutoff to avoid erroneous readings. The overall riding experience is not optimized. This DOES NOT reflect the way the bike will run after the AutoTune tables have been populated with the learned values. This is only a temporary condition.
Recommendations for better AutoTune Results

⋅ Safely ride the motorcycle with smooth throttle actuation through various RPM and throttle positions.n
⋅ Avoid abrupt throttle changes so the FP3 can adequately sample each cell.
⋅ It is not recommended to use the Cruise Control during AutoTune as this only populates a small region of the map.
⋅ The AutoTune grid will indicate what areas have been sampled, White indicates no data has been taken, orange indicates some data has been collected, and areas that have been completed are green.
⋅ Some areas are unlikely to be sampled in real world riding, such as very high throttle openings at low RPM. A typical set of good data will resemble a football shape of green cells.
After the VE Tables have been calibrated and saved to the map, the AFR tables can tailored to individual rider preference or better developed by dyno pros. The AFR tables of a Vance & Hines map have been set to a custom blend offering a combination of WOT performance and part throttle economy.

 

Thank you! I think I'm getting it now.