First Datalogs from a 2015 GT

Aaron@Jpcracing · Oct 10, 2014

Just wanted to show a few logs I took from a bone stock 2015 Mustang GT.

Here's a quick view of the RPM to start off with. I nailed the rev limiter going 2-3, looks like the rev limiter on this car is set at 6800 rpm and is all done with the throttle blade, I let off for a moment between the shifts as well which can be seen on the logs.

A/F Ratio seemed to be about .82 lambda all through 3rd gear. It was pretty stable throughout. Looks like in second it trailed down from .97 lamda down to about .85ish.

Here's a quick look at the timing. Looks like it was getting 22-23.5 degrees of timing even with the knock sensors adding 3 degrees in part of second gear. Not sure what kind of fuel was in it, more the likely whatever it came from Ford with.

Just wanted to post up a quick view of the IMRC plates functioning.

Grimace427 · Oct 10, 2014

Excellent info. Great starting point for comparison for those of us learning datalogs on our own.

Dyno · Oct 10, 2014

Awesome stuff thank you for posting this!

Nick@JDM · Oct 10, 2014

Nice Aaron thanks for sharing.

Vickstang · Oct 10, 2014

Thanks for this, glad someone thought to do it. Great seeing all the info being shared by the aftermarket now.

opensesame · Oct 10, 2014

Grimace427 · Oct 10, 2014

opensesame said:

It's very daunting at first, however after reading a few logs you'll begin to learn what to look for. Common things like lambda(commanded air/fuel ratio), spark timing, knock, and rpm's are easily compared across older logs or even other cars with similar mods.

Things like short/long term fuel trims and cam timing are best left to professionals though.

Tommy V · Oct 10, 2014

Actually short and long term fuel trims are ur best friend when it comes time to diagnose whats going on.

wproctor411 · Oct 11, 2014

Aaron@Jpcracing said:
Just wanted to show a few logs I took from a bone stock 2015 Mustang GT.

Here's a quick view of the RPM to start off with. I nailed the rev limiter going 2-3, looks like the rev limiter on this car is set at 6800 rpm and is all done with the throttle blade, I let off for a moment between the shifts as well which can be seen on the logs.

A/F Ratio seemed to be about .82 lambda all through 3rd gear. It was pretty stable throughout. Looks like in second it trailed down from .97 lamda down to about .85ish.

Here's a quick look at the timing. Looks like it was getting 22-23.5 degrees of timing even with the knock sensors adding 3 degrees in part of second gear. Not sure what kind of fuel was in it, more the likely whatever it came from Ford with.

Just wanted to post up a quick view of the IMRC plates functioning.

That's nice, will you put the JPC/RGR 351 Stroker/CJ/NA combo in your sweet ride?. That's got to be good for 620 RWHP.
Thanks

Grimace427 · Oct 11, 2014

wproctor411 said:
That's nice, will you put the JPC/RGR 351 Stroker/CJ/NA combo in your sweet ride?. That's got to be good for 620 RWHP.
Thanks

Has anybody done that yet? I haven't seen a single owner run a stroker Coyote yet.

jayman33 · Oct 11, 2014

Good post Aaron, thanks for the info!

GT · Oct 11, 2014

Did the 2014 have a 7000RPM redline?

1320' · Oct 11, 2014

GT said:
Did the 2014 have a 7000RPM redline?

Think the Boss did

wproctor411 · Oct 11, 2014

Grimace427 said:
Has anybody done that yet? I haven't seen a single owner run a stroker Coyote yet.

They sell them, has anyone bought one? Don't know. Looks like they tok it down to 344ci though.

http://www.jpcracing.com/coyote-stroker-shortblock-344-cubic-inches/
$15999 for a short block is pricey.

FreddyG · Oct 11, 2014

It's the Lambda that always confused me. I always set it to show the commanded AFR. It was just easier for me to see it because maybe I'm not smart enough to convert it!

I guess if that's what you always use to tune, then it would become second nature to think about Lambda/Stoichiometric (14.7:1)= 1 and lower is fatter, higher is leaner. It's just easier for me to see the AFR.

Like I said, maybe not bright enough or just too lazy to relearn it!

Either way, Thanks OP for posting up your logs. They're interesting to look at.

Which software are you logging with?

First Datalogs from a 2015 GT

Aaron@Jpcracing

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Grimace427

Well-Known Member

Dyno

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Nick@JDM

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Vickstang

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opensesame

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Grimace427

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Tommy V

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wproctor411

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Grimace427

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jayman33

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GT

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1320'

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wproctor411

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FreddyG

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