What would break under full acceleration?

[csukoh78]

Ever since I bought this truck, I often wondered under full acceleration (full WOT for ICE engines), what would "break first"? I have seen home built electric cars/trucks with way too much power bend/twist/break axles, tear apart rubber belts and etc. Could that still happen with the F150L, or is over engineered to not happen?

The asphalt.

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[Adventureboy]

I tap the floor boards regularly. 2 years so far and nothing broke.

 

[Effonefiddy Lightning]

One day I put the pedal to the metal and I broke wind. I could not pucker fast enough.

 

[Maybe Going EV]

We had a 3 day demo truck, which I floored a few times without incident. Nice acceleration, but no drama, or parts failing.

 

[TaxmanHog]

The failures I speak of are one in a million incidents, but forums do amplify fear.

 

[MTBAZ]

As stated by several. If your talking Stock. Nothing should break. The design team should have looked at all parts and used the weakest point to set limits on truck performance. Safety factors and defined use cases that exceed 99% of typical driver would be applied to that part, and at some point it's cheaper to limit power than to design a stronger part.

Anyone know what the parts (Battery, Motor) are capable of and has anyone found a way to use all the power we have. If we could hack the system and access the full power, I'm sure the weakest link in the mechanical design would show it's face quickly. Would likely find limits on electrical components as well.

 

[Marcelo Zanetti]

Do it all the time, very aggressively. Nothing ever broke...

 

[Scorpio3d]

I took one of my buddies for a “ride“ and his response was the acceleration was like a roller coaster. He said he felt a little woozy for a minute and my dad was concerned about giving someone whiplash. That is one of the things I love about this truck, especially on the highway when you need to pass somebody really quickly…. No problem!

 

[invertedspear]

Everyone is answering this as in "I've put the pedal to the metal and had no issues" and while the OP hasn't said anything I feel like the original question is more about what would happen if I removed the restrictions built in to the truck including the speed governor. Would the motors fail before the half shafts? Would the tires just melt before providing enough friction to actually move? Would the sudden pull on the battery melt it down, or at least the connecting wires? Would the driver pass out from the G-force before any of that?

I haven't spent a lot of time underneath the truck, but I think it would be the half shafts. They seem undersized for the torque that the motors could be capable of. But given what we know about the OG Tesla Roadster prototypes, it might be the motor, they can get some crazy RPMs and any imbalance, no matter how slight gets really magnified the faster it spins up, which might be why we have a top speed.

 

[TaxmanHog]

I think the current flow at 100% throttle for to long a period of time might overheat some parts, traction battery, contactors, power switching transistors and related wiring.

 

[21st Century Truck]

Not on the Lightning, but on its little brother my old 2022 Mach E Premium AWD with the extended battery I did break the front motor... twice. The 1st time around 47 K miles the front motor internal seals blew and its cooling oil oozed into where it wasn't supposed to be in, including oozing thru the high voltage multipin orange connector pins. The software of course immediately went crazy (STOP SAFELY NOW) but because this happened at night in the mountains of western Maryland I ignored the warnings and just slowly limped home.

The second (replaced) front mirror failure, at 75,001 miles less than one year later was caused / indicated by a subtle judder and on inspection, by metal shavings in the motor fluid.

Warranty took care of both motor replacements, but when I gained the 3rd front motor in 26 months I bid the Mach E "goodbye" and got the Lightning.

So imho the weak link might be the front motor, on the Mach E anyway. Let it be publicly known as a aside that I drove that fun car pretty much like I stole it

 

[SmoothJ]

Everyone is answering this as in "I've put the pedal to the metal and had no issues" and while the OP hasn't said anything I feel like the original question is more about what would happen if I removed the restrictions built in to the truck including the speed governor. Would the motors fail before the half shafts? Would the tires just melt before providing enough friction to actually move? Would the sudden pull on the battery melt it down, or at least the connecting wires? Would the driver pass out from the G-force before any of that?

I haven't spent a lot of time underneath the truck, but I think it would be the half shafts. They seem undersized for the torque that the motors could be capable of. But given what we know about the OG Tesla Roadster prototypes, it might be the motor, they can get some crazy RPMs and any imbalance, no matter how slight gets really magnified the faster it spins up, which might be why we have a top speed.

Ironically enough, this is the reason I asked the question in the first place. Knowing which parts could fail and try to reinforce those parts or replace with something better.

I was stuck in traffic when I had an idea about "modding" the truck (like its not powerful enough already), but then I thought about the common points of failure for a ICE and for what I knew about cars modded to be an EV. This brought me to brainstorming, and then asking the original question.

 

[woodsman]

I have never put mine in sport mode. Does it accelerate faster? Like we need faster. It is like being 16 again, I gave the manager of the golf course a short ride, she said she almost peed her pants. No bigger compliment than that.
I did learn to make sure you are pointing straight when ya floor it.

 

[invertedspear]

I have never put mine in sport mode. Does it accelerate faster?

It doesn't change the acceleration capability, but it does alter the pedal response a bit so that you get to higher levels of power faster. It also increases the simulated engine drag (using regenerative braking) when you let off the pedal.

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