Are All Tesla Model S P90Ds Ludicrous-Mode Ready?

SEP 25 2015 BY MARK KANE 12

Main traction battery sticker on the new battery enclosure in Tesla Model S LUDY P90D's part number is 1063792-00-A (source: Tesla Motors Club)

Main traction battery sticker on the new battery enclosure in Tesla Model S LUDY P90D’s part number is 1063792-00-A (source: Tesla Motors Club)

Tesla Model S owners are reporting the same part number (1063792-00-A) for P90D battery packs with and without Ludicrous Mode, which raises the question whether all P90Ds are Ludicrous Mode ready with only software being set to “ON/OFF.”

TMC Commenter “ArtInCT” says:

“What can this mean to us?

Does the P90D Insane AND P90D Ludicrous have the same battery pack?
Appears so in this small sample.
Does this mean that the new advanced fuse system is in both the Insane and Ludicrous main traction packs?

Inquiring minds would like to know…

In the long run, does this mean that in the future, via a simple software upgrade a P90D Insane can become a P90D LUDICROUS?”

There is a high possibility that Tesla Motors produces all P90Ds with Ludicrous Mode hardware to simplify the process, while just slightly raising costs.

Some are even reporting:

“In another thread here, it was reported that a car delivered to a service center had been upgraded via software to ludicrous speed mode with no hardware changes.

Another question is are the new fuses only in the P90D or maybe in every new Model S? Another comment:

“Regarding the fuse, I am pretty sure that this will be the standard fuse for ANY car. It does not make any sense for a car manufacturer to have multiple versions of one part unless it is an expensive one. The 10k is a joke, I doubt the fuse costs more than 1-200 $. Tesla just found another way to make money out of nothing. It’s of course their right to do so (for NEW cars).”

We wouldn’t be surprised if Tesla is making most of its cars Ludicrous-ready, if for no other reason than to offer it as a software upgrade to current owners at some point in the near future.

Check out the entire conversation at the Tesla Motors Club here.

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12 Comments on "Are All Tesla Model S P90Ds Ludicrous-Mode Ready?"

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I don’t see why this would surprise people. The same thing happened with the 40kwh owners who wanted to upgrade to the 60kwr battery.

This is an example of adding additional value to the preowned certified cars… unlock features to increase margins.

And if the higher current does happen to frie a couple of cells it also covers part of the warranty costs that could be associated by higher peak demand on the battery.

I though the smart circuit breaker was the big difference…

The breaker, and I thought wiring to at least portions of the pack, had to be fattened. The process easily sounded like something that requires partial battery disassembly.

The P85D upgrade is a question mark, as to whether there are few enough where it may be more economic for Tesla to offer a 90kwh swap. How to price it, given the popular claim that “691HP motor power” was miss-leading, is still a pretty raw topic among owners.

Just wondering if the issue with – “the popular claim that “691HP motor power” was miss-leading,” is one of something like PC Mods to push speed to the Max, with ‘Overclocking’ in the sense that stating the chip comes with a 3.2 GHz chip that can run to 3.44 GHz; or is it just that people get challenged by math, impatience, or technique? Technique: It was reported that to get the 3.1 Seconds 0-60 time, one had to lift their foot OFF the Throttle, and then STOMP it down hard, like attacking it to save your life!! (Simply Flexing your toes down as fast as you could, was slower – since your bigger muscles move you whole leg, compared to those that balance your foot! Impatience (And Math) – The Motors in fact have this power, and when bigger Batteries are Available that can deliver that much power – all of it will be available to you (all 691 Hp) beyond the first few seconds of launch torque! Also – as JB Described – and as many EV Converters understand (even better than me) is there is a difference between ‘Motor Amps’ and ‘Battery Amps’ (JB says – Battery kW… Read more »
What I think is being dodged is the fact that power is advertised as a system, by all other manufacturers, who make no technical qualification for not making system power for reasons Tesla is putting forward. Other makers do not claim the maximum capacity of various components, and then deliver a car which for other reasons cannot make that power. That is the slippery slope Tesla went down. They created the perception of 691HP, or >700HP if you add how the current P90D is advertised, yet customers get 500-550HP. What Tesla is doing, in my opinion, is inviting other makers to point to the strong link of a system, yet deliver far less, as they have done. 700HP is massive, when it connects on ~3000lbs. I have the memory of a Porsche instructors modified 911 turbo in my head, that actually made that power, and crashed in front of me at a Canadian track. He had LOTS of experience, and wasn’t “some kid”. I never thought Tesla was delivering on this, and have no axe to grind. I just think they should be like everyone else, and state dyno power (at wheels, or shafts). For just the P85D and P90D,… Read more »

I don’t think Tesla is isolated in their using of motor power numbers. Ford also does that for their Energi. I actually understood fully what Tesla meant from the moment they used motor power because I am used to seeing EVs in the hobbyist crowd giving power numbers based on motor specs. I suspect Straubel (being also from the EV hobby side; he had a converted 944) did not realize people would be confused by this.

For most manufacturers, their motors are so weak that they are a long way from maxing out their battery. So the motor spec and system power spec is the exact same. The P85D however had much more motor(s) than the battery could handle (this remains true even with the P90D with Ludicrous fuse).

Yeah, it wouldn’t at all surprise me if all new Performance grade Model S’s are hardware enabled for Ludicrous™ mode. Let’s remember that only a small percentage of Model S’s have the high-end Performance package.

Next question: Will someone figure out (and publish) a hack to upgrade all new “P’s” to Ludicrous™ mode, whether the option is paid for or not?

The only real -technique- needed to get maximum acceleration from a Tesla of any flavor is indeed moving the -GO- pedal to the floor as quick as humanly possible.

As far as -hacking- anything on a Tesla goes… They will know if you do it and are likely to disable the vehicle remotely if not -paid for- and done by Tesla technicians.

This brings us back to the _You don’t actually “own” it_ theory.

Roy LeMeur said:

“As far as -hacking- anything on a Tesla goes… They will know if you do it and are likely to disable the vehicle remotely if not -paid for- and done by Tesla technicians.”

I can’t see Tesla doing that. The public-relations backlash would be terrific.

However, I can certainly see them pointing to something in the buyer’s contract about “things that will void the warranty”, and tell the owner of the hacked car that he won’t be the recipient of any future over-the-air upgrades, and that he’ll have to pay out of pocket for all future service and replacement parts for his car…

Hmm, those battery stickers don’t seem to be attached very well.