Dyno sessions have finally concluded and I can post some data on what we've been working on with the EcoBoost F150's:
(over 400 dyno runs to date) It took far longer than anticipated.
Below is a screen show of the Stock Tune showing RPM, Boost, and Measured Air fuel.
You can see the boost spike of 229KPA (100KPA = 0 boost, 200KPA = 14.6lbs) along with the severely retarded ignition timing and fairly lean air fuel for the boost (IMO). Boost then drops off to a nice low octane friendly level of 185-190KPA.
Below is a screen shot of the AED tune I've been working on. The goal was to remove the boost spike, richen fueling on the 'hit' (which would yield a safer tune) and at the same time allow more ignition timing without knock activity for a true Premium fuel tune.
In this tune Boost peaks at 224KPA @4900RPM, then drops to 214KPA @6500RPM.
*Note boost on tip-in is reduced, fueling is enriched, and ignition spark has increased nominally.*
The difference in power output can be seen here:
Power curve on the 91 octane AED tune VS Stock tune:
*Note the 86HP gain at 6000RPM*
Next step is Drag strip verification and likely some transmission tweaking.
(over 400 dyno runs to date) It took far longer than anticipated.
Below is a screen show of the Stock Tune showing RPM, Boost, and Measured Air fuel.
You can see the boost spike of 229KPA (100KPA = 0 boost, 200KPA = 14.6lbs) along with the severely retarded ignition timing and fairly lean air fuel for the boost (IMO). Boost then drops off to a nice low octane friendly level of 185-190KPA.
Below is a screen shot of the AED tune I've been working on. The goal was to remove the boost spike, richen fueling on the 'hit' (which would yield a safer tune) and at the same time allow more ignition timing without knock activity for a true Premium fuel tune.
In this tune Boost peaks at 224KPA @4900RPM, then drops to 214KPA @6500RPM.
*Note boost on tip-in is reduced, fueling is enriched, and ignition spark has increased nominally.*
The difference in power output can be seen here:
Power curve on the 91 octane AED tune VS Stock tune:
*Note the 86HP gain at 6000RPM*
Next step is Drag strip verification and likely some transmission tweaking.