2011 SOHC Ping/spark knock on 87

[Uncle Gump]

I just have this image of farm truck and azn tuning the moredoor nova...

 

[gw33gp]

So, a few more things, and since I get tired of talking to my cat, I'm going to talk in your general direction.

Here is a data log I made during a highway merge. The shift is a 4-5 upshift when the PROFESSIONAL DRIVER ON A CLOSED COURSE shifted to finish the merge. The stock tuning on the 4.0l SOHC basically commands 1.00 lambda (14.7:1) at all times while driving in closed loop. When WOT condition is met, the truck dumps from closed loop into open loop, drops all spark, and lowers lambda to 0.87 (12.8:1) and kills spark back to below base timing. And because its in Open Loop, you're stuck with an overly sheepish spark curve.

So, in essence, Ford intentionally made it run like shit when you grab for WOT.

There *is* power loss because Ford programmed it that way. 12.7 AFR and below base timing = poop. POOP. ITS POOP, FORD, CAN YOU HEAR ME? POOP!

I was just thinking I have not experienced my 4.0 SOHC running like crap at WOT. It pulls strong right up to redline. Then I remembered I have a custom flash tune, and it probably has better mapping. It has been a long time since I have done WOT on the stock tune, so I can't say for sure if I have or have not experienced lack of power at WOT, but I don't recall losing power at WOT with the stock tune.

 

[PetroleumJunkie412]

I was just thinking I have not experienced my 4.0 SOHC running like crap at WOT. It pulls strong right up to redline. Then I remembered I have a custom flash tune, and it probably has better mapping. It has been a long time since I have done WOT on the stock tune, so I can't say for sure if I have or have not experienced lack of power at WOT, but I don't recall losing power at WOT with the stock tune.

So what are the odds I can get a look at your maps?