I think my truck has a tune
#21
F150 Forum
op here reporting back. truck maxes out at 105/106. So probably no tune so wow it's a fast truck.
SO now I'm curious. THe power delivery seems pretty linear - I love it. SO much torque down low. Really not much advantage to pushing the pedal to the bottom. Just keeping it at 60-70% it stays in the torque band and just flips those gears around 3-4k rpms with just bushels of ftlbs SO if I did a tune, does the addtl torque stay pretty linear?
SO now I'm curious. THe power delivery seems pretty linear - I love it. SO much torque down low. Really not much advantage to pushing the pedal to the bottom. Just keeping it at 60-70% it stays in the torque band and just flips those gears around 3-4k rpms with just bushels of ftlbs SO if I did a tune, does the addtl torque stay pretty linear?
This run shows stock versus 93 Performance which picked up around 85 wheel HP and 45 WTQ with peak vs. peak gains being +103 WHP +97 WTQ.
#23
F150 Forum
The tunes are configured for the minimum octane required for use, being 93 octane in this example. There's enough logic that it can add or subtract timing to an extent to adjust for different locations / fuel qualities. So if you had a below average tank of 93 it could pull some power back as it sees changes in knock and things of that nature, and if you add some even higher octane such as 100 octane unleaded race gas it can add some power above what 93 would have allowed. But going all the way down to 87 octane on a 93 tune could lead to engine damage if you were out doing some aggressive full throttle driving and didn't catch it soon enough. So it's always a good idea to run a full tank or two of 93 octane fuel through the truck first before loading a 93 octane required tune if you're not sure what was in the tank previously. Then we do also offer flex fuel tuning where the ECU can adjust on the fly as needed for changes between say 93 octane and E85 or a blend of the two even. But to go that route there are other modifications needed such as our Firestorm high pressure fuel pump, upgraded injectors, and an in tank fuel pump upgrade as well.
Here's a link to the Flex fuel video demonstration here on the dyno with a more in depth explanation of how it can adjust for changes in ethanol content on the fly.