120MPH Speed Limit with LMS Tune?

[QuickSilver]

So I was impressed  a couple weeks ago with how quickly my 2014 ExSport gets to 120MPH, then a bit discouraged to learn that it wont go any faster than that... Figured once I load the LMS tune it would be resolved. Nope, loaded the LMS 91 octane tow tune today and it still hits the wall @ 120

[bpd1151]

That's weird.

I would reach out to them and ask if the speed limiter was removed, cuz it sounds like it may not have been.

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[SHOdded]

Probably to make sure you don't outrun your brakes, tires and suspension!  I am sure a tuner can remove it, has been done on older MY's.

[TSS]

I believe it is removed with the MKS/SHO - maybe different for the Explorer.   

[MeanKS]

yea, I've taken my MKS to 145 (was smooth as butter BTW).

i think its electronically limited to 155mph from the factory...

[Night Hawk]

weird x2

[donky4444]

My SHO used to be limited to 133 since my tune I have gone faster.

[QuickSilver]

Just to be clear, this is def the govenor/limiter, it spanks right to 120 then holds, it's not drag limited like any proper top speed should be :-  I didn't specifically ask Anthony if the govenor would be defeated with the tune, I suppose I just assumed it would be...

[DJE624]

I don't know why it would be limited unless the speed rating is lower on XSport tires.

[BiGMaC]

I understood that a tune... at least the Livernois tunes disable the speed limiter.  Am I laboring under a misconception?

[DJE624]

You may have to take it out on a deserted desert road and find out Tom!

[BiGMaC]

.. Won't have to far for that!  Most folks are making 50-60 between stoplights out here, literally

[QuickSilver]

So I had an appointment @ GMG Motorsports in Costa Mesa today for some dyno time and baseline runs. The guy running the dyno took off the TCS and used M mode for 4th gear pulls He said it was doing an indicated 135MPH at the top of 4th.  So was it the M mode or turning off the TCS that got around the limiter?   Not too many deserted roads in SoCal to test one way or the other. There is the road I used for the first top speed test between Vegas and Parumph on the way to Spring Mountain Raceway. It's loooong and strait for miles

[SoCalSHO]

O/T, but what kind of dyno do they use at GMG. What was the pricing? Thanks.

[QuickSilver]

O/T, but what kind of dyno do they use at GMG. What was the pricing? Thanks.

Mustang Dyno, $175/hr for 4-5 pulls with AFR, tuning is more but I didn't ask about that yet.  See separate thread with scan of graph... I'd link it but gotta help finish 7th grade daughter's homework. Man, this stuff is hard