Converting a Roadster to Roadster Sport

[hallvardr]

There are some wrecked Roadster sports for sale now and then. I wonder how many parts that need to be moved to make my Roadster into a Roadster Sport.

Motor, PEM and some suspension parts. Is that all?

 

[gregd]

The PEM, actually, is physically the same between the 2.x standard and sport models; just a firmware change. But you'd need Tesla's help on the conversion (probably would in any case), as I expect there is firmware elsewhere that would need to get changed over, if only for the cosmetic stuff (e.g. VDS).

Suspension is a bit different too, I believe. And badges.

 

[ML Auto]

Without Tesla's help you would need to change the motor, PEM, VDS and the gauge cluster if the donor car has more miles. But then the donor cars VIN would appear on the touchscreen. If Tesla was willing to help, just the motor and suspension.

 

[Stefan T]

some cars have sports motor that are not sport
like mine

 

[supersnoop]

some cars have sports motor that are not sport
like mine

What happens in this case, when the motor is different but nothing else is changed? I’ve heard stories of Roadsters that dramatically outperform the original specs, and wonder if it’s all related to the motor.

 

[hallvardr]

Interesting, so it actually looks relatively easy to do then. As long as Tesla are willing to do some work.

Weird how can you see or know that Stefan?

 

[Stefan T]

If you lift the PEM
And read on the motor. very easy to see
and the motor is marked with 2.0 Sport motor

 

[dhrivnak]

I would be surprised if a sport motor with a non sport PEM would make a difference. The Sport PEM will put out 900 amps versus 700 for the non sport. So that is the likely bottle neck. But if you are after a few tenths in the 1/4 mile it looks like the 3.0 battery is the better option. With it you have less voltage sag and thus more power.

 

[DeedWest]

What happens in this case, when the motor is different but nothing else is changed? I’ve heard stories of Roadsters that dramatically outperform the original specs, and wonder if it’s all related to the motor.

My 523 is one of those Roadsters. It's ridiculous...and it even consistently out-drags a nearby 2.5 Sport with an R80 battery.

All I'm missing is the Adjustable Suspension, which is likely now impossible to acquire from Tesla.

 

[ML Auto]

From my experience, the difference in 0-60 times all comes down to one thing-traction. With the traction control on you can get a slower time due to it limiting power if the tires start to slip. Without it on you can spin the tires and increase the time as well. Besides tire choice, the other big factor in traction is the rear wheel alignment. When I first started to autocross, I had the rear camber set around -3 degrees and could spin the tires at will (actually just one tire-traction off). The closer I adjusted the camber to 0 degrees, the more traction I got, but the less the car handled. So it all depends on what the car is set up to do-drag race or handle. The only time I can consistently get a sub 4 second 0-60 time is with slicks and 0 degrees of rear camber.

 

[hallvardr]

If you lift the PEM
And read on the motor. very easy to see
and the motor is marked with 2.0 Sport motor

The PEM is out of my car now, so I checked the motor and mine is also marked with Sport