Ford Performance Tune for 2018+ GT

[Dfeeds]

It's a cumulative thing. Run enough lead through a converter and it will die.

Also, per the owners manual, fuels containing more than 15% alcohol should not be used. Last time I checked, to get 95 octane by mixing e85 with 91 octane it resulted in ~e43.

That's the point I was making to Dave. E85 itself won't cause harm (as we see with all the e85 tunes cars) but the stock/FP tune may not have the right air/fuel ratio when running it. Although I have read about the stock tune adjusting for higher than e15. The unknown factor is what the FP tune will adjust for.

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[Dave2013M3]

That's the point I was making to Dave. E85 itself won't cause harm (as we see with all the e85 tunes cars) but the stock/FP tune may not have the right air/fuel ratio when running it. Although I have read about the stock tune adjusting for higher than e15. The unknown factor is what the FP tune will adjust for.

I truly appreciate your advice and don't ever think I am discarding it. From what I have been told its really the E30 mark I have to be concerned with. What I may do is go back to my original blend which was 2 gallons of VP MS109 and 1 gallon of E85, or 2.5 gallons of VP101 (available at a pump near by) and 1.5 gallon of E85 every tank full.

 

[2018OFPP1?2]

That's the point I was making to Dave. E85 itself won't cause harm (as we see with all the e85 tunes cars) but the stock/FP tune may not have the right air/fuel ratio when running it. Although I have read about the stock tune adjusting for higher than e15. The unknown factor is what the FP tune will adjust for.

Although many do it with a tune, alcohol affects things other than A/F ratio. It's very corrosive to seals that aren't designed to handle it, and there are issues with water created by alcohol. For me personally, it's not worth the risk. I plan to have my car for a long time, and I'm not doing something that has potential long term to do damage. Ford says don't do it, that's good enough for me

 

[Rpinaiii]

Seems a little more complicated than just mixing fuels lol..

 

[Dave2013M3]

The key is to run straight gas in the fuel system every few tank fulls. Thats why I won't run straight E85...there is nothing wrong in running a few gallons of E85 in modern fuel systems. Don't let the car sit for long and flush it out with regular fuel every few tankfulls. Thats why I limit it max to 3 gallons as it gets me only to E24.

Dave

 

[Rpinaiii]

Does the car have to relearn the fuel mix each time it is changed back and forth? And does that take long?

 

[Davefzr]

Hey guys, got another dyno done after the initial install and dyno (https://www.mustang6g.com/forums/th...-tune-for-2018-gt.122943/page-39#post-2902710) to put this to rest on two fronts. One, the car has to learn and get accustomed to the new tune and Two, California fuel sucks. After running 93/94 octane fuel for several weeks, here are the results.

 

[FruityJudy]

What makes you guys assume a tune has to "learn"?

 

[Davefzr]

One more thing. The first dyno was done at 76 degrees and today it was 88 ambient temperature. Also, i know different dynos, but LMR dyno’d the Bullitt and it made 426, 391.

 

[Rpinaiii]

What makes you guys assume a tune has to "learn"?

??? Doesnt the computer learn the driving habits and fuel etc to adjust and perform to optimum level?

 

[FruityJudy]

??? Doesnt the computer learn the driving habits and fuel etc to adjust and perform to optimum level?

No. The transmission learns driving habits but the engine parameters shouldn't. If anything, the tune would perform best right after loading due to the KAM being reset during the upload

 

[Dfeeds]

No. The transmission learns driving habits but the engine parameters shouldn't. If anything, the tune would perform best right after loading due to the KAM being reset during the upload

The tune doesn't reset the KAM on its own and a KAM reset will leave you down on power until it learns it's optimum fuel trims...

 

[SDAMike]

Hey guys, got another dyno done after the initial install and dyno (https://www.mustang6g.com/forums/th...-tune-for-2018-gt.122943/page-39#post-2902710) to put this to rest on two fronts. One, the car has to learn and get accustomed to the new tune and Two, California fuel sucks. After running 93/94 octane fuel for several weeks, here are the results.

So looking at your 1st graph vs. this recent graph. If i am looking at it all right, you picked up 20 peak hp and about 8 tq with the ford perf pack?
Overall, How do you like it?

 

[FreePenguin]

So looking at your 1st graph vs. this recent graph. If i am looking at it all right, you picked up 20 peak hp and about 8 tq with the ford perf pack?
Overall, How do you like it?

Number wise, that doesn't seem much at all, but how does it feel?

 

[AZ18yote]

Number wise, that doesn't seem much at all, but how does it feel?

That is actually better than advertised for hp considering they were saying 19hp at the crank. So at the very least it over performed in that aspect.

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