http://jalopnik.com/first-tesla-p85d-on-a-dyno-puts-down-864-foot-pounds-of-1675557317
More Torque Than Advertised
[20141227]  Andrew P Collins  ht2 Brooks

[video
https://www.youtube.com/watch?v=LqFWvAplIKc
Tesla P85D Shocks the Dyno with 864 ft-lbs of torque to the wheels
DragTimes Dec 26, 2014
]

The Tesla Model S has kicked out some wacky power readings, but it looks
like somebody was able return 864 ft-lbs of torque with a P85D a few times
in a row. Pretty impressive considering the factory claims about, oh, 177
lb-ft less. The shrieking jet wail the car makes in an enclosed garage is
something else altogether.1

The Tesla Model S is a legit sports sedan. Smooth, fast, good looking, and
fun to drive. It has the … Read more

DragTimesbrought this Tesla P85D to Horsepower Logic in Royal Palm Beach,
Florida for a few pulls on their Mustang 4WD dynamometer. The machine seemed
to have a lot of trouble accurately measuring the electric car's output, as
the instantaneous torque "spun the tires... causing it to pull back power."

But with a bit of patience they were able to record a surging power curve
like nothing I've seen on a dyno chart. Check out the results right here
after you watch the ear-splitting pull.
[© jalopnik.com]



http://www.dragtimes.com/blog/tesla-model-s-p85d-shocks-the-dyno-with-864-ft-lbs-of-torque
Tesla Model S P85D Shocks the Dyno with 864 ft-lbs of Torque
December 27th, 2014 

[images  
http://www.dragtimes.com/blog/wp-content/uploads/2014/12/IMG_8868.jpg
2015 Black Tesla Model S P85D (on Dyno)

http://www.dragtimes.com/images/27143-2015-Tesla-Model-S.jpg

http://www.dragtimes.com/images_dyno/27143-2015-Tesla-Model-S-Dyno.jpg
Tesla Model S P85D Dyno Graph Results
]

We had some time with a brand new Tesla Model S P85D to do some initial
testing before our StreetCarDrags event on January 18th, 2015 where we’ll
have 12 Tesla Model S cars racing themselves and other exotic cars down the
drag strip at Palm Beach International Raceway.   Since the Florida weather
provided us with pouring rain all day and the track was closed, performance
testing wasn’t quite an option, although as you’ll see later, we did some
launches in the rain and the Tesla did amazing.

Instead we headed over to see Jack at Horsepower Logic in Royal Palm Beach,
FL to strap the all new and super powerful Tesla on the dyno to see just how
much power, or torque rather, the new car would put down to the wheels.  
The new Model S P85D has two motors, 471HP in the rear and 221HP in the
front for a combined motor power of 691 horsepower as per Tesla’s website,
but no mention of torque.  With a 4,900 pound curb weight and a 0-60 MPH
times of just 3.2 seconds as per Tesla, the car must be putting down some
serious power, and it did just that on the dyno.

Since we know from past dyno results on the previous Model S P85 with just
one motor rated at 415HP, most of the big torque and power is down low, so
we attempted to start the dyno pulls as slow as possible.  However, the
instant torque of the P85D spun the tires on the Mustang 4WD dyno during
first few attempts, causing the car to pull back power.  After a couple more
tries, we were able to successfully roll into the power low enough to get
some big results with the P85D putting down 864 ft-lbs of torque to the
wheels during multiple runs.   While the car doesn’t hold that torque number
for very long as you can see in the graph below, it’s long enough to propel
the Tesla off the line amazingly well, putting a grin on everyone’s face who
tried it after the dyno sessions were over.

It should be noted that while the torque falls of pretty quick on the dyno
and it’s noticeable when driving on the street, Tesla states that the full
potential of the P85D has not been fully released yet and that future
software updates will provide even more power at higher speeds.

The P85D top speed is currently electronically-limited to 130 mph. In the
coming months, we will be able to upgrade the car free of charge to enable a
155 mph top speed. This free update will be available for the lifetime of
the car (not limited to the first owner). Additionally, an over-the-air
firmware upgrade to the power electronics will improve P85D performance at
high speed above what anyone outside Tesla has experienced to date. In other
words, the car will be better than you experienced. This free upgrade will
be rolled out in the next few months, once full validation is complete.

Take a look at the dyno graph and video below and check back soon for some
performance testing and interesting match ups for the new Tesla P85D.

Also check out a heads up race between the P85D (691HP) and the P85.
(415HP).
[© dragtimes.com]
...
http://www.greencarreports.com/news/1096077_tesla-p85d-top-speed-performanceto-be-boosted-in-next-few-months
Tesla P85D Top Speed, PerformanceTo Be Boosted In 'Next Few Months'
By Stephen Edelstein  Dec 30, 2014



[dated]
http://jalopnik.com/watch-a-tesla-model-s-fool-a-dyno-into-thinking-it-has-1618211162
Watch A Tesla Model S Fool A Dyno Into Thinking It Has All The Torque
Travis Okulski  8/08/14 

[video
https://www.youtube.com/watch?v=Q-XFarMF6gU
Tesla Model S Performance 85 Dyno Run!
Emmanuel Chang Jul 11, 2014
2013 Black Tesla Model S P85
21" Wheels - Continental Extreme Contact DW Rubber

Dyno maxed out at 2000 lbs·ft but on paper the car should be putting 4310
lbs·ft of torque to the wheels. You get 4310.39 lbs·ft by taking the crank
power (443 lbs·ft) and running the number through a reduction gear 9.73:1
(reduction gears multiply torque at the cost of rpm)

416HP Official Rated at the crank
436HP Measured at the wheels (see run #2 on Dyno link)

Environment: 80% Charge on the battery, 26ºC outside temp, 24% Humidity,
1157 meters (Altitude, but this doesnt really affect EVs to my knowledge)

Another angle from Simark Control's Go Pro Camera
https://www.youtube.com/watch?v=Gqlttrv7kds

Dyno Sheet
http://i.imgur.com/PzBHRjy.jpg

Part of the Electric Vehicle Association of Alberta
https://www.facebook.com/groups/yycEV/
]

The Tesla Model S is a legit sports sedan. Smooth, fast, good looking, and
fun to drive. It has the whole combination. But thanks to the lack of a
transmission and how it puts power down, it can fool a dyno into thinking it
has 2,000 pound feet of torque. Damn.1

While the torque was wild, the horsepower was basically flat, showing that
it has 436. Tesla says the P85 S has 415 horsepower, so the figure is close.
Driveline loss appears to be basically non-existent.
[© jalopnik.com]




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