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Didn't see your post. It isn't a fact per se, but good assumption given the abnormal launch and the propensity of British car reviewers to use 'brake torquing' when it isn't necessary... just like steve sutcliffe of Autocar did recently... Tesla Model S P85D vs Audi RS7 vs Alpina XD3 track...

Btw, back of the envelope math (wrt to rollout speed & time): 1ft=0.305m a=acceleration=1.1g *9.81 = 10.791 m/s^2 (you can play around with the initial g force, but 1.1 is the maximum) d=0.5*a*t^2 t= sqrt(2d/a) t= sqrt(2*0.305/10.791) = 0.238s -> time to reach 1ft (aka time to subtract for 1ft...

Actually in that video the problem is that they launched the P85D with both pedals pressed initially... They were idiots. There was a slight 'hesitation' as they say.

One thing I noticed: in the spec sheet, it lists the front motor gear ratio as 9.34:1. Can anyone confirm if this is correct? I've never seen any magazine report the front motor ratio so idk

Well, this is all hypothetical since in the real world the F1 doesn't have ANY electronic launch control or stability control, not to mention RWD only. The best data we have is the P85D vs. Aventador video w/ launch control. The aventador is faster on paper than the F1, and has AWD + launch...

I think it's probably the latter. Usually 1ft rollout is ~0.2-0.4s, 0.53s seems like too much. PBox is more reliable IMO.

If you take an average from say 45-65mph (power limited region with low drag) what would the whp be? I think the spikes in whp are just due to the accel spikes the graph had earlier, especially if you also see downward spikes. Unless your power meter went above 480kW although that seems...

Disagree. 1ft rollout is appropriate (and standard) for the quarter-mile, as that is the drag racing convention that has a technological reasoning: you need ~1ft to clear the beam at the start line. 0-60 times do not have this convention... There is absolutely no standard whatsoever. Most...

If the difference is indeed due to 1ft-rollout, then I have one question: What is the true 0-60 time for P85D? From your run (which is probably not under ideal conditions) it would seem to be in the mid 3s range rather than low 3s. Is that true? When Tesla advertises 3.1s, are they taking...

Either way, thanks for the data and graph. But it would be better if 1ft-rollout is turned off (I'm sure there's a setting somewhere), because it causes confusion with number comparisons.

Why does the graph show 1mph at 0.0s? Idk about the PerformanceBox, but, does it include 1ft-rollout?

Not the same. I would have given that theory some consideration, given that the 60kWh has been around for 2.5 years and sales are very low. P85D has been around for 5 months, and sells very well. There is no need to put out an upgrade this soon. I'm not suggesting Tesla isn't capable or...

Exactly. Well put. I don't know why @kris is thinking there will be a new model this soon, clearly with the 85D update, and the fact that the P85D is not putting down nearly as much as advertised, the update will likely happen soon. Also, it was promised on the website along with the 155mph...

Question to you and Stoneymonster: do the Dynopocket app results include 1-ft rollout? I think that it should be turned off if that is the case.

I'm not sure if you read/understood my comment so I'll clarify: Your original comment was about peak power vs. acceleration performance. You calculated that 350hp is necessary to accelerate an object from 0-60 in 3.1s. Again, that is right as average, but is a useless number because it is not...

Really 65%? That seems too high. Do you have a source for this? I would have guessed 20-50%. Using Forbes Networth of 12.2B (April 11, 2015) and ~35M shares of TSLA @ $210 and 28% stake in solarcity (27M shares @ $56) you get a net $3.3B unaccounted for. So, if SpaceX is worth $12B, musk owns...

I doubt it. The ramp is probably the transient response limit of the inverter and other power electronics. I'm pretty sure you would see a similar but steeper linear increase on a P85D. You can try taking the car to a drag strip (with a prepped surface ) to increase traction instead of changing...

Maybe this was mentioned before, but, it seems that out of the original line-up only the S85 survives: S40 (DOA) S60 (RIP April 15') P85 & P85+ (RIP Dec 14'?) S85 -> Soon... In a few months the S85 will probably be gone too. That means we will have a completely new lineup in about 3 years from...

Theoretical limit if you had 600whp (450kW @ wheels) available (691 with 13% loss): (mass w/ driver ~2300kg) Phase 1: grip+inverter limited P=m*a*v -> v=P/(m*a) = 450kW/(2300*1.1g*9.81) =18.131m/s =>40.5mph (in 1.68s) Therefore, from 0-41 power increases linearly (assuming 1.1g acceleration)...

OK, you like numbers. So do I. Here's a correction for you: the 350hp figure you calculated is correct as an average. It is actually completely useless though in the case of determining peak hp required for a car. Instantaneous power can be calculated like this: P=E/t=f*d/t=f*v=m*a*v. Where v...

Well, it will definitely destroy range, but not as bad as 2kwh/km. Just some quick math: -Power consumption at 215kph -> ~105kw (From this vid) (interpolating the log scale @ roughly 40% between 80-160) -Power consumption rises with the cube of speed so: 105*(250/215)^3 -> 165kw @ 250kph...

It's not a charge really, you put the coin in the cart to release it from the others, you can get your coin back if you return the cart and "plug" it back into the the other carts. I think it's done to encourage people to return their carts instead of leaving them in the parking lot. Edit...

This approach would be more likely to work, however, it would require redefining the meaning of libel to something extremely broad and vague. nwdiver raised this possibility, I gave my reasoning for why its a very bad idea on page 41 of this thread. Also, I don't think this redefinition would...

I am not a legal expert, but it is quite clear (from the wording and the interpretation of the first amendment by supreme court over the last 225 years) that the kind of change you are proposing is not just a small legal matter. I don't think it is possible to respect the first amendment and...

I am glad we sorted out the confusion about what Free Speech really means. 1) You are suggesting changing/destroying one of the most important right in the US, the First Amendment to the constitution: this guarantees freedom of speech. 2) You want to punish people for what they say, because...

I did read the entire thread at one point or another. No Raffy, there is no difference between different types of statements that are allowed under Free Speech. Please read my recent comments to nwdiver about the topic. Free Speech does not have categories. Any statement (true or false or...

Yes, now it is clear. You want to prohibit individuals from expressing their opinion in public by punishing them or the host (e.g. you make a YouTube video against climate change and it goes viral. Are you saying the creator of the video should be punished? or should YouTube be punished for...

You just contradicted yourself. In the first line you are saying "one thing is the media and another thing is individuals". Then you say people discussing with each other publicly is the media... Which one is it?

What don't you agree with specifically? I am simply saying that "people discussing with each other publicly" == "Media". These two entities are one and the same. Youtube/Facebook/TMC etc... is people discussing with each other. Youtube/Facebook/TMC etc... is the 'media'. What in your opinion is...

Sorry Raffy, but that doesn't change anything very much. The 'punishment' is not really the debate here: what is at stake is whether or not certain speech should be illegal. If you read my recent posts in this thread you can see my opinion on the topic, but basically the government has no...

Are you claiming that satirists are not trying to convey information? That may be the case, or it may not. A lot of satire/jokes can be more truthful and meaningful than 'serious' media outlets (case in point: George Carlin, Daily show, etc...). And no, 'most of us can tell' is not a valid legal...

Please don't conflate selling a product or providing a service with free speech; as pointed out to you, selling something is inherently regulated by other laws (consumer protection etc.) and does not fall under free speech. I am glad you recognize that a non-affiliated person can provide 'false'...

Did you read my last sentence correctly? Freedom of speech is a right given to individual people NOT corporations. Selling a product or service is inherently regulated and is obviously not part of free speech. Is that more clear? - - - Updated - - - Again read, my first post. That is NOT what...

Restricting Freedom of Speech. I've been reading through your posts in this thread, and what you don't seem to understand is the basic concept of 'Freedom of Speech'. What you seem to be saying, (and correct me if I'm wrong) is that anyone not using scientific evidence should be punished for...

Not really. It's pretty easy to launch a nuke from earth to the moon, and considering that the Apollo astronauts arrived within 3 days, somebody crazy could nuke the moon, and there really won't be time to do anything. Same goes for deadly virus, since travel would be frequent and quick between...

#1 Reason is resources. The moon simply does not have enough of what's needed compared to Mars. A colony on Mars can be self sustaining, very difficult/impossible on moon. Mars atmosphere is 95% CO2 which can be used to create methane and oxygen: rocket fuel. ( CO2 + H2O(from soil) + Energy...

If my assumptions are correct, a 1 inch increase in tire radius (e.g. 19" vs 21") would increase top speed by about 10%. Some owners put 22" tires so we know those fit at least. I would test this my self if I could but, I don't have the tires... or the car. I doubt that GPS is used to calculate...

Correct me if I'm wrong, but isn't the car's top speed affected by tire diameter? I've read that the motor's rpm limit is the reason for the limiter, so wouldn't a larger diameter tire give you more distance per rpm (faster speed?). Unless the limiter works based on some other mysterious...

Just found this news report on the crash, apologies if it's been posted previously: http://www.youtube.com/watch?v=QtgTcoT1yRo Tesla front end is visible around the 10 second mark, though you'll have to play/pause to get it fully visible.