-
Want to remove ads? Register an account and login to see fewer ads, and become a Supporting Member to remove almost all ads.
No, I've just been reading Important terminology question - what are we going to call the ludicrous P90D
Kevin Michaluk
Member
Wouldn't make sense for there to be a difference in the 0 - 60mph time for the P85DL or P90DL since the key factor is how many amps can the motor draw. It will be the same with the new fuse.
My GUESS as to why the person in the UK would say 2.9 instead of 2.8 is because they are probably talking 0 to 100km, and a 100km is actually 62.5mph.
Even in Canada when I was buying my P85D the website would say 3.2 instead of 3.1
My GUESS as to why the person in the UK would say 2.9 instead of 2.8 is because they are probably talking 0 to 100km, and a 100km is actually 62.5mph.
Even in Canada when I was buying my P85D the website would say 3.2 instead of 3.1
Ooh no we don't have any km around here. miles all the way!
However I have now been told what the reason for the difference was (but it's unrelated to this). However it does seem that the battery size has no impact on 0-60 time - identical P85DL and P90DL cars would get the same time.
Last edited:
Muzzman1
Active Member
I picked up my P85D this morning the 17th, and my delivery time was 11am. Ironically the same time the announcement was made.
I would be shocked if I could not do whatever it takes to get the Ludicrous upgrade. I read that is is $5k plus labor. (substantiated by the threads above)
I've already called my service center and requested that I will get the 1st available upgrade when it's possible.
I would be shocked if I could not do whatever it takes to get the Ludicrous upgrade. I read that is is $5k plus labor. (substantiated by the threads above)
I've already called my service center and requested that I will get the 1st available upgrade when it's possible.
InsaneDriver
Member
It seems as though you can upgrade an existing P85D to allow for Ludicrous mode and end up with the 2.8 sec 0-60 and the 10.9 1/4 mile time. The only additional advantage the 90 battery pack gives you is the additional mileage (+5%, so less than 15 miles for a P85D going to a P90D). Chasing tenths is expensive, any of us who have modified ICE cars in the past know this well. Having owned stock Corvettes that didn't remain stock for long (1999 FRC 408 CID Supercharged Stroker with 695 RWHP, 2003 ZO6 TTiX Twin Turbo with 985 RWHP). So if you think about it at the end of the day, the additional cost to take a P85D to 2.8 seconds 0-60 actually isn't all that bad :biggrin:
The blog post is up.
Three Dog Day | Tesla Motors
Three Dog Day | Tesla Motors
I think that pretty much clears it up except for how much the "plus installation labor" is.
Kevin Michaluk
Member
Made a short video in reaction to today's P95D LUDICROUS mode news as I get to work on my review series....
Gave some props in the video to TMC too! Given that I just took delivery 5 days ago, totally going to do the upgrade. Been talking to my Sr. Owner Advisor guy and it's confirmed. Doesn't seem like the service centers here have much info yet, but definitely made it clear I want to be front of the line for the upgrade.
Gave some props in the video to TMC too! Given that I just took delivery 5 days ago, totally going to do the upgrade. Been talking to my Sr. Owner Advisor guy and it's confirmed. Doesn't seem like the service centers here have much info yet, but definitely made it clear I want to be front of the line for the upgrade.
Last edited by a moderator:
How do you know this? 60's have been upgraded to 85's. Just because Tesla changed their policy and won't currently do it doesn't mean that it can't be done or that they won't change their mind tomorrow.
As an example, you can't put a Sig 85 pack into a P85D -- even though they have the same marketed capacity. There are multiple generations of pack changes that make the legacy pack incompatible with the new vehicles. I don't know whether you can do the reverse (P85D pack into a Sig 85).
KJ's statement was very broad, making it definitely incorrect. If you choose narrower statements, some of those cases may be technically feasible.
jmccrack
Member
Haha, perfect!No, I've just been reading Important terminology question - what are we going to call the ludicrous P90D
Per Elon's blog post "The net result is that we can safely increase the max pack output from 1300 to 1500 Amps."
Here are my calculations:
For the current P85D
Fuse/Contactor Limit: 1,300 Amps
With a nominal operating pack voltage of 366v
Max Power = 1300x366 = 475.8KW
414kw is probably the result of a software safety limit to 87% of max fuse capacity. (475x87% = 414)
For the new P85D
Fuse/Contactor Limit: 1,500 Amps
With a nominal operating pack voltage of 366v
Max Power = 1500x366 = 549KW (736 hp)
87% of 549kw = 477.6 KW (640 hp)
So the fuse/contactor update for the P85D-Ludicrous allows Tesla to tap an additional 64 kW from the battery, leading to the 2.8s 0-60mph performance boost.
What is interesting to note is that Tesla still has some room for improvement. The maximum power rating for both motors combined on the P85D is 568 kW (or 762 HP), so if an even better fuse can be found, then additional power can be tapped leading to even better performance (assuming no issues with other factors such as traction, battery pack & wiring, etc)
manis
Member
I haven't read every post or tweet, but from what I have read there was a comment in January that top speed would go to 155 and performance unseen by anyone outside Tesla would be added. The update in April did decrease the time to 3.1s so technically performance was improved and until that update nobody outside Tesla has seen it.
All I ever read about 2.8s was a rumor that was based on information from someone inside Tesla and nothing was ever said about if it required new hardware. Ludicrous mode is enabled via a firmware update if you have the hardware to support it. I don't remember anyone promising that it would be a software-only change, but I might have missed something.
I know very little about the motors or electrical systems of our cars, so please correct me if I'm wrong, but is it possible the car could achieve 2.8s at 1300amps, but in varying conditions it exceeded 1300amps? I have noticed that the energy graph in my car shows numbers that are higher at times than times I have floored it from 0. If so, then maybe the people that experienced 2.8s weren't present for the times the fuse failed.
- - - Updated - - -
I've read some commentary that the 0-30 hasn't changed because of traction. That would be based on the non-staggered wheel setup they are building cars with. Wouldn't it be technically possible to improve that even further on a car that was running a staggered 265/285 config?
In that case, there are a lot of trolls, who also happen to have bought or considered a P85D... So the highest margin clients for Tesla, whose "whining" should be taken seriously... especially when it's based on facts and reasonable expectations. By the way, for the record, I think that the P90DL finally fits the bill of the super-Tesla, with what seems to be improved acceleration at most speeds vs the other versions on offer (and also previous ones such as the classic P85). A serious contender for replacing my P85+! Only thing left to do is for Tesla to publish some real hp like they do for the other models. And for me to actually test drive the car ;-)
Similar threads
