2017+ Super Duty The 2017+ Ford F250, F350, F450 and F550 Super Duty Pickup and Chassis Cab
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View Poll Results: which tune/tunes do you use and like?
87 economy
1
20.00%
87 tow
3
60.00%
87 daily street
0
0%
87 performance
0
0%
91 tow
0
0%
93 tow
1
20.00%
Voters: 5. You may not vote on this poll

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  #16  
Old Today | 10:33 AM
jims94vmx's Avatar
jims94vmx
Thread Starter
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Tuned
Joined: Feb 2017
Posts: 408
Likes: 21
Here at 5 star now. Going performance 87 as the 4th
 
  #17  
Old Today | 10:52 AM
acdii's Avatar
acdii
Lead Driver
Joined: Feb 2022
Posts: 5,777
Likes: 2,564
Originally Posted by 2021F350
I would go for the 87 performance... as for the 93 tow... You really, and I mean really, NEED to be careful with that, and you would NEED to think ahead before using it, like one tank of gas ahead, depending on what octane you had in the tank BEFORE, switching to it... JMO having had tunes for the last 20 years on all of my vehicles... You can't/shouldn't, just switch to the 93 just because you filled the tank with 93, but had 87 in there with lets say 1/4 of a tank...

Completely agree! Even with 87 tow tune, have to be very careful which pump you select in some states as regular is 85 and not 87 and that one caught me hard. Truck pulled great, but the 85 grade fuel created way too much heat in the turbos. Ran much cooler with 87 after that.
 
  #18  
Old Today | 12:53 PM
2021F350's Avatar
2021F350
Laughing Gas
Joined: Dec 2021
Posts: 1,003
Likes: 301
From: PG, BC, Canada
Originally Posted by jims94vmx
Here at 5 star now. Going performance 87 as the 4th
If I was there I would also have them change the shift points in the 10 speed a bit more than they did in my off the shelf maps...
10th to 9th at 22% throttle 82% load.
9th to 8th at 24% throttle 84% load
8th to 7th at 32% throttle 86% load... JMO as some would think that would cause too many shifts all the time, but that is why you have a 10 speed to stay in the most efficient power range all of the time... IMO
 
  #19  
Old Today | 02:23 PM
jims94vmx's Avatar
jims94vmx
Thread Starter
|
Tuned
Joined: Feb 2017
Posts: 408
Likes: 21
Originally Posted by 2021F350
If I was there I would also have them change the shift points in the 10 speed a bit more than they did in my off the shelf maps...
10th to 9th at 22% throttle 82% load.
9th to 8th at 24% throttle 84% load
8th to 7th at 32% throttle 86% load... JMO as some would think that would cause too many shifts all the time, but that is why you have a 10 speed to stay in the most efficient power range all of the time... IMO
I have the 6 speed......
 
  #20  
Old Today | 05:01 PM
Concretecut's Avatar
Concretecut
Cross-Country
Joined: Mar 2019
Posts: 64
Likes: 2
From: Florida
Please update with your thoughts as I have been on the fence about this. Same engine and tranny. hoping to hear an improvement in mpg.
 
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