'17 Raptor w/ 91 PRX MPT Tune (Datalog provided)

In case anyone was curious what information comes with the datalog from an nGauge tuner from MPT, here it is. I did a datalog for them to review. 0-85, normal driving mode with the 91PRX tune.

http://www.webpimp.net/log0005.csv

I'm not an expert at reading this, but it appears I'm running some good gas, which means there is no knocking. If there was a positive value in the KNOCKR column, that would not be preferred. It would have to pull timing.

The Lamba1 column should be near 1. Anything above 1 and its lean, below 1 and its running rich. I appear to be running on the rich side right now. I'm asking the tuner if there is anything to do about that.

the log looks fine, you want to be rich when running WOT, and 0.77 lambda with the amount of spark advance 91octane can tolerate is acceptable

Thank you sir. The tuner replied back with an answer similar to that.

Also he sent me back a revised tune that includes a smoother 1 to 2 shift when under light load.

Id be curious to see what kinds of numbers it would put on the dyno over stock.


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Me too! I have a 170 thermostat and corsa extreme exhaust also. The fans turn on at 185 with the tune. If the turbos spin up for a bit, engine Temps will get to 195 or so, then right back down to 174 - 176 under no load.

Need to find somewhere in Tulsa willing to dyno it.

Yeah my understanding is that it’s hard to find a dyno to fits these trucks on...
But I’d be interested in seeing what it makes compared to goose. His are the only ones I’ve seen dyno’d other than claims made by manufactures.
Really want to add a fmic and tune one day, but I think I should wait til the truck has more than 2700 miles on it lol.
If u do decide to dyno and find a place, be sure to keep us all in the loop here.


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If you want to drive to Sealy Tx I know Hennessy has one that fits.

Have you seen much improvement on 91? I know that the results are great with the 93 tune, but best I can do in NorCal is 91 or e85 (sometimes). I have been considering a tune, but dont know how much more power I will see on 91.

Oh I love the 91PRX tune. Been on the truck for a month now. The truck wants to jump right off the line. The tune on the transmission is great and smooth. No more skipping gears. It is always in the power band. May be me, but the turbos seem to spool up sooner. We only have 91 octane in the Tulsa area, or else I'd do 93prx.