ImSofaKingWeToddId

Correct me if I'm wrong and engineermike would probably know, but on the newer cars the gas pedal sends a signal to control the throttle. Unlike the generation before where the throttle body cable opened the throttle valve. I guess these guys figured a way to get that signal there quicker because it's def noticeable in sport mode (on the pedal commander). Going to order a tuner next. If I can get this truck high 12s that would be pretty cool.

Moschello25

Does anyone know what car I can take the alternator out of and drop it into my 5.0 needs to be 130 amp? Wanting to take the mechanical fan out and use e fans

Summers22

iTrader: (2)

For that money, I will spend another $100 and get a SCT BDX with some MPT tunes on it........

Summers22

iTrader: (2)

Curious as to why all of a sudden you are modding this 5.0 since in your last thread you said "I'm not going to do anything to the 5.0, prob just use this truck for hauling the trailer for our lawn business, surf fishing and hunting".

I am not trying to start an argument, just wonder why the change of heart.

2015rubyFX4

The gas pedal is basically an adjustable rheostat and as you push it down, its like turning up the volume on a radio. The radio **** does not go up uniformly though. There is a bell curve (more or less) to help economy and/or drive ability. The pedal commander makes changes to this curve the factory put in it.

2015rubyFX4

The only reason i am not getting a tune is so that if i ever take mine in for warranty work I don;t want to get denied. After the warranty is up, thats another story. Even if you change the tune back to stock before you take it in, they can tell the tune has been changed and they are looking for a reason to deny you warranty work, Which they now have.

Summers22

iTrader: (2)

I am fully aware

My 01 Superduty was tuned for 9 years and 140K, no problems. My 07 was tuned for 3 years and 50K, again, no problems. Its just different with this one since its new with a massive warranty. I honestly will probably never tune it.

engineermike

Modern throttle control works nothing like most people think and nothing like they used to. The throttle is a rheostat that sends a signal to the ecm. The ecm interprets this as a torque demand. The torque demand is weighed against a number of torque limits that are in place for various reasons, then requests the resultant torque value from the engine math model. The math model determines the most efficient set of parameters (intake cam timing, exhaust cam timing, throttle angle, IMRC position, etc), at the current ambient conditions, to achieve demanded torque. It then sends those commands to the engine. Seems like a lot of math to do, but I assure you that's not the delay you sense in the pedal. The ecm does all that in an imperceptible amount of time. Any delay you sense is a torque limit at that time and set of conditions, which is not by accident. The pedal commander simply applies a different rheostat ramp rate that the ecm interprets as a greater torque demand earlier in the pedal travel.

The 2018 f-150 5.0 maximum torque demand coincides with 400 ftlb and 395 hp, the engine rating. Again, this is not coincidence. It is interesting, though, that the 2018 mustang 5.0 max torque demand is 466 ftlb and 507 hp, which is well over the engine rating.

w00t692

It's a voltage curve that is set to translate to a throttle table. Now... there's also throttle dampening as well. It ramps the input over time so you can't stab it quickly to prevent driveline shock, touchy throttle input and wheelspin. The way it determines the dampening and position is with the torque demand tables. The torque demand tables are supposed to be the "final say" for all the other tables, so it's going to use all it's inputs to target those.
Things that ramp the throttle more quickly that go between the harness and the pedal are just lying to the ecu what voltage is being fed to it. That's all the capabilty it has, seriously.

I believe if you cracked a pedal commander open you would not be impressed at the components in there lol.

Mark Miller

Is your truck a 2015 and is it tuned?