Anybody have a solution to get rid of the max 5sec power cut off

[ArthurH]

Thanks, mom! We won’t forget to wear our coat when it’s cold out either!

There’s also a reason the coyote and voodoo engines have the hp rating they have, but that doesn’t stop people from putting a larger supercharger on them.

Gotta love all the Nannie’s on this forum exclaiming how “upgrades could be dangerous”. It’s a Mustang GT performance edition, not a Prius. People are going to upgrade them, want more power, and do with their cars what they want. Whether mom thinks it’s a good idea or likes to condescendingly tell people to buy a lesser performance oriented trim level

But at the same time, Ford really doesn't want exploding batteries, or GTPE's catching on fire, in the news any time soon. You know people are only going to read the part about the fire, and not the part about how Joe hacked the system and disengaged all safety features.

There are tried and true ways to mod ICE vehicles, and knowing the limits as well as the consequences. Modding new EVs, on the other hand, isn't exactly perfect science at the moment.

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[BMT1071]

But at the same time, Ford really doesn't want exploding batteries, or GTPE's catching on fire, in the news any time soon. You know people are only going to read the part about the fire, and not the part about how Joe hacked the system and disengaged all safety features.

There are tried and true ways to mod ICE vehicles, and knowing the limits as well as the consequences. Modding new EVs, on the other hand, isn't exactly perfect science at the moment.

Exactly. Punching a rod through the block or dropping the crankshaft on the street is a world away from a runaway 100 kWh Li ion battery fire.

 

[tannerk89]

But at the same time, Ford really doesn't want exploding batteries, or GTPE's catching on fire, in the news any time soon. You know people are only going to read the part about the fire, and not the part about how Joe hacked the system and disengaged all safety features.

There are tried and true ways to mod ICE vehicles, and knowing the limits as well as the consequences. Modding new EVs, on the other hand, isn't exactly perfect science at the moment.

I appreciate you speculating on what Ford may or may not want from its customers. But, it’s not rocket science. They aren’t powered by magic, they are powered by electricity. Electricity has been around for over 200 years, so I’m pretty sure there are plenty of people smart enough to determine whether increasing a software time limit on full power can be handled by an insulation rating on a cable, or what needs to be upgraded, like active cooling, in order to make it safe to get longer power. Hell, I even did that for many years myself as an engineer at a company that makes electrical products.

 

[SnBGC]

I think they may be being a bit conservative in seeing what the wiring, motor, battery can handle and may increase the 5 second limit a bit in the future.

But I actually do think Ford doesn’t want the car to be too quick. The GTs might be at the top of the totem pole for now, but the Shelby Mach-Es are coming and they have to leave some legroom for those vehicles, especially if Ford is planning to use the same BorgWarner motors that are found on both axles of the GTs and the rear of the non-GTs.

Yes. Likely a bit conservative for sure. The federal requirement for EV powertrain warranty will likely cause every manufacturer to play it safe until there enough time to collect the necessary data. Heck, it took Chevrolet over 40 years to collect enough data from the small block V8 engine to design and produce the LS engine. By all accounts, the LS engine addressed every single performance limitation that was identified and exposed by 40 years of hot rodding.

We haven't even had 1 year of data from the GT so it would be premature to start turning up the performance without understanding Ford's concerns in the first place. If people really want to blaze a trail (pardon the pun)......then splice open the wire harness and install a resistor in the battery coolant temp sensor and see if that has any effect. I don't know what parameter Ford is watching to force the 5 second limit but once you find that parameter then find a way to trick the computer into allowing more time at full power. It might be a timer on the accelerator pedal input or it might be a current request PID etc. Find it, then modify how the computer reads and interprets that value and you are hot rodding. Like we've been doing for the last 70 years.....just a bit different these days.

 

[Mach1E]

But at the same time, Ford really doesn't want exploding batteries, or GTPE's catching on fire, in the news any time soon. You know people are only going to read the part about the fire, and not the part about how Joe hacked the system and disengaged all safety features.

There are tried and true ways to mod ICE vehicles, and knowing the limits as well as the consequences. Modding new EVs, on the other hand, isn't exactly perfect science at the moment.

Where do you get the idea that 10 seconds of full power (which as has been mentioned 480hp isn’t full power anyways) would result in explosions and fires??

If a lithium battery car can handle 40 back to back 1000+ hp 1/4 mile runs to 150+ mph, I think asking for a few extra seconds of power is a “small ask.”

https://www.teslaoracle.com/2021/08...uarter-mile-runs-and-at-a-20-state-of-charge/

The idea that we are just seconds away from exploding is absolutely absurd.

 

[ArthurH]

I appreciate you speculating on what Ford may or may not want from its customers. But, it’s not rocket science. They aren’t powered by magic, they are powered by electricity. Electricity has been around for over 200 years, so I’m pretty sure there are plenty of people smart enough to determine whether increasing a software time limit on full power can be handled by an insulation rating on a cable, or what needs to be upgraded, like active cooling, in order to make it safe to get longer power. Hell, I even did that for many years myself as an engineer at a company that makes electrical products.

Electricity may be around for 200 years, but mass produced EV batteries have only been around for 30 years, give or take depending on what version of EV batteries you want to take into consideration. So you want to actually consider the effects on the battery and not just a simple equation of Power > Heat > Cooling/Insulation.

If such modifications could potentially degrade/damage the battery, or in any way produce diminishing effects, it should be known so people aren't just out there buying hacked software simply for the pleasure of added power without understanding the consequences.

So yes, there are smarter people than us; they're FORD Engineers who know the limits of their own technology. So it's not unreasonable to let them decide what the limitations are first, before the average folks start messing around.

 

[SnBGC]

I appreciate you speculating on what Ford may or may not want from its customers. But, it’s not rocket science. They aren’t powered by magic, they are powered by electricity. Electricity has been around for over 200 years, so I’m pretty sure there are plenty of people smart enough to determine whether increasing a software time limit on full power can be handled by an insulation rating on a cable, or what needs to be upgraded, like active cooling, in order to make it safe to get longer power. Hell, I even did that for many years myself as an engineer at a company that makes electrical products.

Help us out. What do you think is the reason why Ford has the time limit in place? Do you think it is a thermal issue of some kind? What component or components are of concern here?
The Mach-E 1400 had a bunch of extra cooling. Perhaps it is just a matter of adding more radiators and fans to the GT?

 

[SightUp]

Does the Premium AWD suffer from this issue?

 

[ArthurH]

Where do you get the idea that 10 seconds of full power (which as has been mentioned 480hp isn’t full power anyways) would result in explosions and fires??

If a lithium battery car can handle 40 back to back 1000+ hp 1/4 mile runs to 150+ mph, I think asking for a few extra seconds of power is a “small ask.”

https://www.teslaoracle.com/2021/08...uarter-mile-runs-and-at-a-20-state-of-charge/

The idea that we are just seconds away from exploding is absolutely absurd.

I was being facetious; not suggesting that it was ultimately going to happen. I was merely giving an example as to why Ford may want to be a bit more conservative as to not end up in the news for any issues that could've been prevented. You know how Tesla's battery fire blew up on the news regardless of it being a relatively low probability.

And this was responding to tannerk's comment of " ... and do with their cars what they want ", suggesting that some people may even want to exceed 10 seconds if they had the ability to.

Also Ford is trying to be a lot more careful than Tesla... as we are witnessing with their slow rollouts of tech updates. So I'm just pointing out that it's reasonable to give them time to sort things out.

I absolutely do agree that the GTPE should be better performing than it currently is.

 

[Scooby24]

Does the Premium AWD suffer from this issue?

No because it never gets that additional power to begin with.

 

[SnBGC]

Does the Premium AWD suffer from this issue?

No clue. Seems like it to me. The power doesn't feel linear but I haven't bothered to try any data runs. I mean....it's a 4 door SUV that weighs nearly 3 tons! Not even remotely considered a sports car so I could care less about 1/4 mile times or trap speeds. If I wanted a sports car then I think of one word.....Porsche.

 

[Kamuelaflyer]

it's a 4 door SUV that weighs nearly 3 tons

Short tons, long tons, or metric tons?

 

[tannerk89]

Help us out. What do you think is the reason why Ford has the time limit in place? Do you think it is a thermal issue of some kind? What component or components are of concern here?
The Mach-E 1400 had a bunch of extra cooling. Perhaps it is just a matter of adding more radiators and fans to the GT?

The reason why Ford did it was a business case analysis showing that it would cost them more in warranty/recalls if they have full power longer, with the data they had at the time of development, than the potential risk to sales by limiting it. There is a very low chance it’s going to burst into flames if it were hacked and increased within reason. That would not meet electrical safety standards or engineering factor of safety whatsoever, but I guess it’s possible.

For the technical reasons I would need to deep dive into systems affected, which is what I would do if I were going to develop a performance upgrade company offering a solution for the MME GTPE. I don’t have the willingness, time, or access to a GTPE in order to do that right now. I’m not going to speculate on which specific component would need to be addressed (if any) because I don’t think that’s helpful in this context. Especially in a thread full of people getting angry that their speculating without any real understanding of the technical background isn’t accepted as gospel and ¡ONLY FORD! must come up with the update or it should never occur. There is an entire aftermarket industry devoted to supplying post production parts and performance upgrades that isn’t developed by Ford, they have many engineers with the skills needed to develop these types of products with an acceptable level of safety.

 

[SnBGC]

The reason why Ford did it was a business case analysis showing that it would cost them more in warranty/recalls if they have full power longer, with the data they had at the time of development, than the potential risk to sales by limiting it. There is a very low chance it’s going to burst into flames if it were hacked and increased within reason. That would not meet electrical safety standards or engineering factor of safety whatsoever, but I guess it’s possible.

For the technical reasons I would need to deep dive into systems affected, which is what I would do if I were going to develop a performance upgrade company offering a solution for the MME GTPE. I don’t have the willingness, time, or access to a GTPE in order to do that right now. I’m not going to speculate on which specific component would need to be addressed (if any) because I don’t think that’s helpful in this context. Especially in a thread full of people getting angry that their speculating without any real understanding of the technical background isn’t accepted as gospel and ¡ONLY FORD! must come up with the update or it should never occur. There is an entire aftermarket industry devoted to supplying post production parts and performance upgrades that isn’t developed by Ford, they have many engineers with the skills needed to develop these types of products with an acceptable level of safety.

Close. The engineers were given criteria and metrics targets to meet. Looks like they found a way to meet the performance target while remaining inside the boundaries for reliability. How close it comes to the boundaries is what we don't know (yet). I was hoping you knew what those boundaries are but it sounds like you are in the same boat as we are at the moment.

 

[Whatstreet]

I will give you my conclusion. If you want performance, don't take a chance on Ford enabling a longer power duration at a later time.

Buy the car that has the performance.

You have been seeing its taillights in every comparison video.

I'll even tell you how they can do it.

It's the battery pack.

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