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Discussion Starter #1 (Edited)
@JerryTX

Good talk last night.

I thought I would share some information that I posted and @Boostking posted in another episode of Tx-Ripper myth busters

These are the factory Lambda charts

3.5 EcoBoost F150 Desired Lambda.jpg

This is from my 2016 F150 3.5 Ecoboost (stock cal) and matches the above chart
2016lambda.png
 

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Discussion Starter #2 (Edited)
So a lambda of .780 is not exactly what ford has in their 2011-2016 cals until you get to the 2017 stuff and they command lambda drops to .700 by redline.
 
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Discussion Starter #3 (Edited)
Here is the lambda chart from my 2018 F150 5.0
Screenshot (8).png
 
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