Watch Tesla Model 3 First Dyno Test

FEB 23 2018 BY DOMENICK YONEY 17

Someone call for a dyno?

The Tesla Model 3 has been in the hands of customers for some months now, yet no one appears to have placed it on a dynometer to measure its power output. Until now, that is.

Read Also: BMW i3 On The Dyno – Video

Tesla Model 3 dyno readout document

Checking out the Model 3’s final result.

A video posted to the Tesla Repair Channel on YouTube fixes this egregious oversight (note: their is some NSFW language in the clip), and the result is eye opening. According to the machine at E-Spec Industries, the latest Tesla puts out a max of 393.6 horsepower. According to the poster on the Tesla Motors Club forum who claims to be involved with this effort, this result was achieved with traction control “fully defeated.”

While we have to admit to being surprised to see a number this high, people discussing the figure seemed to agree that the car’s zero-to-60 time, as measured by MotorTrend, combined with the Model 3’s weight indicate it seems like a legitimate result. Or, at least close.

Source: YouTube via Tesla Motors Club

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17 Comments on "Watch Tesla Model 3 First Dyno Test"

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Acevolt

How much torque does it produce? I am surprised they didn’t mention that.

R.S

Because you can’t tell motor torque w/o the gearing ratio and wheel torque is too complicated for even most auto journalists (Roadster 2).

In an EV, hp is all you need to know. And a hp graph already tells you all you need to know on any car.

SparkEV

Dynos measure wheel torque and multiply by RPM to get horsepower. If wheel torque is nebulous, HP is just as nebulous.

Ben

Because the graph already contains it. Torque=power/angular velocity.

Bolt driver

Most inertial dyno S won’t be able to give a torque as there is no way for them to get the motor rpm. To get torque most use a spark trigger to get rpm and then calculate the torque based on the power.

The interesting thing to me was the shape of the curve. Peaks pretty low then falls off fast. Good for overall driving. Very different than a turbo car where the hp builds to redline.

DL

Motor RPM can easily be calculated since you know the tire RPM and transmission ratio. The graph shows about 450 lb-ft if I’m reading that right.

DL

My bad, should have watched the video all the way through. I was trying to interpret the photo of the printout and misread it.

Terawatt

Not only can RPM be calculated, as was pointed out, but there’s also the option of reading it from the CAN bus with a cheap ODB-II adapter.

pjwood1

The spike appears to be at ~62mph. Interesting, and backs up DeMuro’s comment about (better than “BMW”) highway roll-on.
https://www.youtube.com/watch?v=te6VqldjTT8

The faster PD Model S’s put down 500+, but peak closer to 40mph in the graphs I’ve seen. Model 3’s motor is rated at 192KW (257HP). Not sure I believe Tesla would understate, by 130+?

One can hope.

Viking79

Most likely it is limited by battery power. Specs rate it at 140 mph max speed, which with 9:1 final drive and 766 rev per mile tire puts the motor RPM at 16000 RPM max.

AC Synchronous PM motors have flat torque up until a certain RPM and drop off in a nearly linear fashion down to their max RPM. The car is rated at 317 lb-ft at 0 RPM so that likely goes out to 5000 or 6000 RPM at the same torque.

Calculating HP from Torque would put the max at about 393 HP at about 70 to 75 mph and about 225 to 256 lb ft of torque at that point, assuming a linear drop starting at about 6000 RPM.

This makes some assumptions, but shows that they probably aren’t overstating that figure on the dyno, it looks reasonable based on the torque and RPM of the motor.

It may be that the battery or motor is only rated for about 250 hp continuous to control heat, but maybe it can handle short bursts higher than that, allowing it to read higher on a dyno.

floydboy

Man! I wonder what dual motors is going to put out?

EVer

How about a torque/rpm curve next time to see how flat the torque curve is and where it starts to drop off. I’m thinking a two speed tranny designed to the torque curve would be a bomb on the track, especially with the great handling suspension that comes from the factory. Move over BMW, you’re in the way!

The dynos need to be modified to take the rpm off for electric cars. The TM3 is destined to become a cult track car; in time expect to see them running the tracks on weekends all over the U.S.

Mulon Esk

No. The battery lasts like 2 laps.

SparkEV

Drag times did a dyno run. PeakHP about 390, Peak torque about 520 ft-lb.

https://www.youtube.com/watch?v=s_4WuWMAWBQ

Shane

Using the same equipment and testing procedures, I would be curious to know the results from the Leaf, Bolt, and other EVs.

Tersla Term

Not accurate. That dyno means the car is within 40hp of the P85 and is 1000lbs lighter. It should be running almost 11s stock. These people don’t know what they’re doing…

Eric verlaet

Hello do not forget that a 70D model S
Is only 60kw rated for one hour
335 HP peak….max 10 min
So model 3 is for me only around 70KW
Dream…dream…