MachE GT/GTPE Performance Limiters Explained

[DK_Min]

Just out of curiosity, which all season tires do you run on the track?

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[Mach1E]

Hi there, I just discover this thread. Thank to all contributors, it's amazing.
I have two questions : are others VE subject to this limitations too, and which ones ? In particular, do the RWD Mach-E have a performance limiter ?

Yes and no.

Every electric car loses power when it’s too hot, too cold or lower state of charge.

But in terms of a specific limit based on time and speed like the GT has? For the Mach E it’s only for the 2021-2023 GT models.

 

[Mach1E]

+4 mph in the 1/8th and 8mph in the 1/4 gain will do work against the Polestar for sure after you do the upgrade.

It's a pretty good improvement all around.

On these All-Season tires, normally I can get a 1.79 60' on the street, mostly in the low 1.8's

Typically 7.6's in the 1.8th and 11.8-9ish in the 1/4.

0-60 is around 3.5-3.7.

It's a solid performance gain for the $$ spent, especially considering to gain 8mph in the 1/4 the amount of coin it takes on a comparable gas vehicle.

Agreed.

That trap speed difference tells us that the performance upgrade does a lot more than just increase peak torque, it increases power across the entire range.

If we ever get a comparison Dyno, we would likely see an increase in horsepower and torque at all rpm levels.

Even though it’s not advertised as such, I would bet there is a peak horsepower increase as well.

No way you gain 8 mph in the 1/4 without some extra horsepower.

 

[blueovaltech]

Just out of curiosity, which all season tires do you run on the track?

It still has the stock ones on it. I do not recall the brand. There is slight wheel spin on the track, quite a bit more on the street. I think with no wheel spin, the car is capable of a 11.7x and a low 1.7x 60', but so far have not been able to get a 100% no spin pass down with these tires.

With the summer only performance tires, it would be more ideal for sure. However, I drive the car year round and those do not work and are damaged if operated below freezing, so i opted for the all seasons.

 

[Trielectric]

Jaguar published the I-Pace as doing 0-60 at 4.5 sec.(398hp 512tq) Yet all the road tests got 4 seconds flat on the most expensive model HSE. Assumptions were made that it made more power than the lower cost versions. The truth was the 22" Pirellis versus the 19" & 18" long life tires on the cheaper versions. The traction control was the acceleration controller.

 

[pade22]

Hi everyone,
I'm getting my 2023.75 Mach-E GT next week. Has the power reduction issue been improved by now? Is there an update available that allows you to access full power for a longer period?

Thanks guys

 

[AKgrampy]

Hi everyone,
I'm getting my 2023.75 Mach-E GT next week. Has the power reduction issue been improved by now? Is there an update available that allows you to access full power for a longer period?

Thanks guys

No upgrade for older models. The limit has been later in later models but at an optional price of around $1000. The Rally has no limit and I suspect option cost is figured into the base price.

 

[pade22]

Oh man, that really sucks. Unfortunately, I didn't do enough research beforehand. I hope I won't notice it too much in day-to-day driving. By the way, it's a GTPE (in Germany, we only have the Performance Edition). Do I actually have those 5 seconds available to me at all times? I mean, can I always accelerate quickly up to 70–80 mph?

Greetings

 

[AKgrampy]

Oh man, that really sucks. Unfortunately, I didn't do enough research beforehand. I hope I won't notice it too much in day-to-day driving. By the way, it's a GTPE (in Germany, we only have the Performance Edition). Do I actually have those 5 seconds available to me at all times? I mean, can I always accelerate quickly up to 70–80 mph?

Greetings

I do not drive on the highway much so hopefully someone with experience will answer. My understanding is the power will taper off at higher speeds but it will still be relatively quick.

 

[buzznwood]

I do not drive on the highway much so hopefully someone with experience will answer. My understanding is the power will taper off at higher speeds but it will still be relatively quick.

Depends on what you class as quick, for most parts of the world once you get up to 70/80mph you will be at the highway / motorway speed limits and in that the vehicles top speed is only 124mph so far below even 1980s standards, so its not like it has much extra beyond that.

So in most peoples normal driving where you are mainly just using the power to quickly get back up to highway speeds you will be fine. Having said that the power drop of at higher speeds is very noticeable, it is not a small difference the rate falls of a cliff in comparison.

From a performance vehicle perspective (can not speak for later models) the power drop off can be borderline dangerous as it can be very inconsistent when it decides to block out power even below 70mph.

You do however get accustomed to it that ideally you plan for power to effectively get cut in half in any maneuvers you make, it may do it or may not but at least you won't be surprised when it does, so won't find yourself up a certain creek without a paddle based on the assumption that power would be consistent.

 

[pade22]

Unfortunately, none of that sounds very promising. I'll see for myself at the end of the week when I receive the MME. I hope I don't regret it. Thanks for the replies.

Greetings

 

[load97]

Unfortunately, none of that sounds very promising. I'll see for myself at the end of the week when I receive the MME. I hope I don't regret it. Thanks for the replies.

Greetings

In cold weather, if the battery isn’t preconditioned, you’ll lose a ton of power. If at maximum amount of jail bars , you’ll need to be a bit mindful. If it’s only at half the maximum amount of jail bars, it’s really not too bad (to me anyway). There is also no precondition button hardware/software on the Mache sadly.

 

[HuntingPudel]

No upgrade for older models. The limit has been later in later models but at an optional price of around $1000. The Rally has no limit and I suspect option cost is figured into the base price.

You’re confusing the Performance Upgrade (PU) with the timed and thermal power limiter. The PU is a $1,000.00 paid upgrade to 700 lbs/ft of torque.on the GT and is part of the Rally option on the GT. The timed and thermal power limiter does not exist for at least 12 seconds on 2024 and newer GTs.

 

[HuntingPudel]

Oh man, that really sucks. Unfortunately, I didn't do enough research beforehand. I hope I won't notice it too much in day-to-day driving. By the way, it's a GTPE (in Germany, we only have the Performance Edition). Do I actually have those 5 seconds available to me at all times? I mean, can I always accelerate quickly up to 70–80 mph?

Greetings

You do not always have 5 seconds. The power limiter is based off of a moving time window, the thermal sensors, and vehicle speed. You have 5 seconds if the car has not been driven or has been driven sedately and brought to a full stop. You have less than 5 seconds if you are at speed. The “jail bars” start to appear at 73 mph/116 kph and start as one tiny bar that you will not notice much then progress quickly to engulf 40% or so of your power meter by the time you are at 78 mph/124 kph. If you drive it hard for a period of time and back off, it takes time for the “jail bars” to recede. So if you have driven hard and back off you will have a power reduction for some time until things have cooled off.

In mostly normal, sedate driving you are unlikely to be affected by the power limiter. I definitely noticed it when I was driving hard with my 2021 GT-PE. If you cruise at 80 mph you will be affected by the limiter. If you cruise at 80 mph, drop to up mph, and accelerate to 80 mph you may or may not notice it and depending on how hard you try to accelerate you may not be affected by it. if your routine acceleration in this situation is less than 60% throttle, you won’t be affected. If your routine acceleration in this situation is to floor the Go Pedal you will be affected since the power limiter limits approximately 40% of the car’s power.

Most GT owners don’t have much of an issue with the power limiter. They may be affected by it but either don’t notice it or are not bothered enough by it to have an issue with it. I had two reasons to swap my 2021 for a 2024: I was affected enough by the limiter to have an issue with it (I drive extremely hard on occasion) and Ford saw fit to not make the 360 cameras available for my car.

 

[pade22]

@HuntingPudel
Thank you for this detailed explanation. I suppose I'll have to test it out, then. Unfortunately, the 2024 models are significantly more expensive, which is why I decided on this one. I had been hoping that Ford would have already introduced some improvements in the 2023.75 models. I'll see if I like it.

Greetings

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