Before I start tuning. Stock file and log inside

[Jn2]

So before making any changes I grabbed my stock file and gave it a glance over.

Looking over the log it appears that the car doesn't enter PE until after 6,000 rpm. It continues to command a 1 instead of the .82 that is shows in the file. I had mention "Fuel Enrichment Pedal vs RPM".

Could that be the reason this is happening? Just trying to figure this out because the way it is now, I'm assuming even if I change the WOT PE lamnda settings, it may not matter bc it wont enter PE until almost the end of the gear.

[Jn2]

Side note:

I have the track package with 3.73 differential. Yet the tune I pulled from the car shows the final drive as 3.31

[jchambers]

Your final drive ratio is programmed in the VID block (transparently to you). You override the VID block by activating the final drive parameters in the calibration. Really no need to do this if you haven't changed gears or tire sizes.

[AKDMB]

Your final drive ratio is programmed in the VID block (transparently to you). You override the VID block by activating the final drive parameters in the calibration. Really no need to do this if you haven't changed gears or tire sizes.

My stock read has the rear gears wrong, my car has 3.31's but it says 2.73 ( I have a V6). So regardless of what HP Tuners says the final drive is the same as the stock Ford tune? My speedo doesn't seem to be wrong.

[96gt4.6]

Your final drive ratio is programmed in the VID block (transparently to you). You override the VID block by activating the final drive parameters in the calibration. Really no need to do this if you haven't changed gears or tire sizes.

This guy is correct.

Ford uses a VID block (HP Tuners does NOT read this) which is short for Vehicle ID block. This 'block' of data contains relative vehicle information such as gear ratio/tire size, ect.

HP will indicate an improper tire size and ratio even when reading a stock tune. They have given us the ability to over ride the VID block with the drop down enabler, at which time you input your new values and tire size if necessary.

This is why your speedo's are accurate, your scanner MPH is accurate, yet the indicated data in the Editor are different.

[AKDMB]

This guy is correct.

Ford uses a VID block (HP Tuners does NOT read this) which is short for Vehicle ID block. This 'block' of data contains relative vehicle information such as gear ratio/tire size, ect.

HP will indicate an improper tire size and ratio even when reading a stock tune. They have given us the ability to over ride the VID block with the drop down enabler, at which time you input your new values and tire size if necessary.

This is why your speedo's are accurate, your scanner MPH is accurate, yet the indicated data in the Editor are different.

Thanks for clearing this up, just wanted to be sure.

[96gt4.6]

Thanks for clearing this up, just wanted to be sure.

Anytime sir! I know some information you had posted has helped me immensely so it's the least I could do.

[Jn2]

So I think I finally got a decent Layout going for datalogging. I have been combing previous Coyote threads looking at what should be logged and how the spark tables works.

One thing I want to ask is if someone could post their modded NA tune to compare how you handled those tables. Im debating either making them all the same values so the car has no choice but to run what I want it to run, or turn 1-14 off and let the car run off only the OP table.

What I'm having trouble understanding why Spark source never says "MBT" and only every "Borderline" which has much lower timing values than MBT. Should I be leaving the "MBT" tables alone and tuning the Borderline ones? If so, Im assuming borderline should always have values that are lower than the MBT counterparts. If someone could post a modded file It would help me figure it out.

[AKDMB]

You shouldn't turn any of the mapped points off or set them the same. This will impact driveability. My car shows that 100% of the spark is coming from the OP table when I got WOT so when I go to tune spark that's where I'm gonna make my changes( still sorting out some knock stuff now). Some people increase all the tables by a percent increase. I am going to try just the OP table to start out with. I don't want to add timing to any other condition than WOT honestly. MBT are the theoretical values where the engine makes the most torque, however these values are very aggressive, so most likely you won't be able to reach them. The car starts at Borderline and tries to work towards MBT. The timing can't go past the MBT values. Only touch MBT if its capping the amount of spark you can run( unlikely unless you have very very good fuel).

[Jn2]

You shouldn't turn any of the mapped points off or set them the same. This will impact driveability. My car shows that 100% of the spark is coming from the OP table when I got WOT so when I go to tune spark that's where I'm gonna make my changes( still sorting out some knock stuff now). Some people increase all the tables by a percent increase. I am going to try just the OP table to start out with. I don't want to add timing to any other condition than WOT honestly. MBT are the theoretical values where the engine makes the most torque, however these values are very aggressive, so most likely you won't be able to reach them. The car starts at Borderline and tries to work towards MBT. The timing can't go past the MBT values. Only touch MBT if its capping the amount of spark you can run( unlikely unless you have very very good fuel).

Ok that makes more sense. I do get close to MBT since the factory tune is set up for 91 and I run 93 octane but it's not until it actually swaps over to the OP map, and that swap doesn't occur until late in the RPM band(close to 6500rpm).

I may need to play with Engine>Fuel>Open&Closed Loop>Pedal Position. (see pic in first post)

The X axis is all 6500 rpm, and the Y axis is all 90% pedal position. This translate to the car not even entering PE until 6500 rpm and 90% pedal position. Like I posted above, I'm trying to learn everything I can before changing things, but looks like its time to make small changed to that table and see if it get the starts using the OP table every time I go WOT. Because right now it does not use OP and if you notice in my log, A/f is stoich through almost the entire pull.

[AKDMB]

The coyotes may behave differently. My car consistently pulls from just OP( I have a 3.7 mustang) so I guess I'm lucky in that aspect. Also my stock WOT Fuel pedal vs position table was the same as yours IIRC 6500rpm and 90% pedal position. The car entered WOT fueling well below this rpm, whenever I stomped on it, it fattened up. I lowered my WOT pedal position to 65% it's what the roush tunes and control pack tunes use so you know this tune change can't negatively affect driveability. I just wanted the car to richen up more quickly. However the thing I forgot to do was change the rpm axis, so I will have to look at that again. I will check out your log a little later when I can get on my laptop. There's people on here with a lot more experience than me and they should be able to get you sorted out for sure lol.

EDIT: Nevermind my Fuel Enrichment pedal position table had correct rpm in the rpm axis, it goes from 500 to 6500 rpm.

[rhinogt]

Yea I would adjust the axis and lower the values. It should help your fueling issue. And I wouldn't set all the borderline tables the same. They will all require a little different spark, since the cams are doing different things in all of them, which adds or reduces cylinder pressure. You can do it, but you will be conservative on some and knocking on others possibly. And some of us don't see Mapped Point OP when we do pulls, so don't freak out if you don't either. If you log the cam angles and it tracks what you set in OP, you should be good. You could also log VCT mode, which should say OP when you go WOT.

[AKDMB]

I just looked over some logs from my last tune change and lowering the entire fuel enrichment pedal vs. rpm table to 65% had a good effect. Before my car would go into Power Enrich at 74.9% throttle (WOT for me, logging Throttle Position SAE) and now it goes into Power Enrich at about 55% throttle(again 74.9% is as high as it goes). Your problem seems to be on an entirely different scale though.

Here is what mine looks like if you want to use the rpm axis as a reference
Attachment 56267

Obviously though, something seems up with your car, I don't know what it is, some times it takes 500rpm(from the time the pedal hits the floor until Power Enrich engages) to go into Power Enrich and other times it takes 2000rpm to get to Power Enrich, just weird. I haven't logged a coyote yet(soon....soon....), but has anyone else seen this behavior in a stock coyote tune? I will have to look some more at this log later when I have some more time, to see if I notice a trend anywhere.

[Higgs Boson]

There is an Enrichment Rate table in Lambda per Second, maybe that's what you need to adjust.