R1T Max Pack + Dual Motor range update from Rivian: 335, 360 and 400 miles range

[Wentworth]

I'd gladly trade longer range for less power. Seriously, why do EVs need 700, 800, 900 HP? They would be plenty fast with 400 HP and would probably get significantly better range, all else equal.

The HP ratings in these cases are generally a byproduct of the low-end torque these motors produce. We’re really buying torque, not horsepower. Torque is for acceleration. Horsepower is for top speed.

I’m sure everyone is clear on the torque VS HP subject now.

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[Joel]

They need to add gears to increase efficiency At high speed.

 

[DB-EV]

According to the Configurator on 4/5/23

300 miles - Dual Motor - 20” - LARGE PACK
350 miles - Dual Motor - 21” - LARGE PACK
320 miles - Dual Motor - 22” - LARGE PACK

335 miles - Dual Motor - 20” - MAX PACK
400 miles - Dual Motor - 21” - MAX PACK
360 miles - Dual Motor - 22” - MAX PACK

Currently Shipping
274 miles - Quad Motor - 20” - LARGE PACK
328 miles - Quad Motor - 21” - LARGE PACK
303 miles - Quad Motor - 22” - LARGE PACK

Thanks for this - for these number are they all purpose or conserve? I am getting about 280 in all purpose on snow tires and 305-310 in conserve.

 

[NineElectrics]

Thanks for this - for these number are they all purpose or conserve? I am getting about 280 in all purpose on snow tires and 305-310 in conserve.

If it’s EPA its a mixture of sport and conserve. I don’t get these numbers on my screen even on 21” with OEM tires.

 

[NineElectrics]

What I was promised and reserved in 2018 (and waited all this time for) is MUCH different than what Rivian is building. What a huge disappointment.

Head on over to https://ftc.gov/complaint to make your voice heard over bad business practices.

 

[zipzag]

What I was promised and reserved in 2018 (and waited all this time for) is MUCH different than what Rivian is building. What a huge disappointment.

A 450+mi Cybertruck for less $$ and better charging infrastructure is now officially the obvious choice.

You know the price and range of the Cybertruck?

If famous Rivian spokesperson Tanya is correct and max pack is 180kWh so real EPA range will be 450 ish.

I also have a Cybertruck reservation and I do expect it to be superior to R1T in most ways. But it is huge and silver. Rivian is very lucky that Musk is such a weirdo.

 

[Bmitch24]

They need to add gears to increase efficiency At high speed.

Is this even a thing for motors? On engines it helps to keep the engine running at its most efficient speed. I know motors on pumps have a best efficiency point, but I am really not sure how/if that translates to vehicles.

 

[zipzag]

Is this even a thing for motors? On engines it helps to keep the engine running at its most efficient speed. I know motors on pumps have a best efficiency point, but I am really not sure how/if that translates to vehicles.

Porsche are/were two speed. Perhaps avoiding friction loss at high rpm?

 

[brancky3]

Porsche are/were two speed. Perhaps avoiding friction loss at high rpm?

For the sole purpose of better acceleration / higher top speed. This wasn't for efficiency.

 

[Bmitch24]

Porsche are/were two speed. Perhaps avoiding friction loss at high rpm?

Yeah. I guess fewer rotations per mile would be more efficient. Not sure what percentage that is relative to wind resistance and tire rolling resistance. I thought Porsche was doing it to allow for high wheel torque at low speeds and also enable higher speeds that would not be possible with the low end gearing on the rear motor. Maybe the eek out some extra range too.

Rivian could accomplish something similar with taller gearing on the front motor(s) so you take full advantage of it during conserve mode trips, but leverage comparatively low end gearing for routine driving when acceleration is more relevant. This would eliminate the need for any additional mechanical complexity from a transmission.

 

[Bmitch24]

Yeah. I guess fewer rotations per mile would be more efficient. Not sure what percentage that is relative to wind resistance and tire rolling resistance. I thought Porsche was doing it to allow for high wheel torque at low speeds and also enable higher speeds that would not be possible with the low end gearing on the rear motor. Maybe the eek out some extra range too.

Rivian could accomplish something similar with taller gearing on the front motor(s) so you take full advantage of it during conserve mode trips, but leverage comparatively low end gearing for routine driving when acceleration is more relevant. This would eliminate the need for any additional mechanical complexity from a transmission.

Looks like the Dual Motor does have different gear ratios front to back. Interestingly no motor disconnect mentioned for any motor configuration.

Vaguely described here.

https://stories.rivian.com/difference-between-r1-drive-systems

 

[White Shadow]

The HP ratings in these cases are generally a byproduct of the low-end torque these motors produce. We’re really buying torque, not horsepower. Torque is for acceleration. Horsepower is for top speed.

I’m sure everyone is clear on the torque VS HP subject now.

Yup, I understand that....but everyone focuses on HP and largely ignored torque. But my point still stands. If it more accurate, substitute HP for torque on my original post. I'll still trade some for more range.

 

[White Shadow]

Don't push your right foot as far and you'll get the same result. Don't punish the rest of us if you don't want 700hp+ ?

I do wish that Rivian had a 'chill' mode like Tesla has though.

Smaller motors at higher "load" will run more efficiently than larger motors at a lesser load.

 

[Dark-Fx]

Smaller motors at higher "load" will run more efficiently than larger motors at a lesser load.

Motors can be designed with a specific efficiency curve in mind. That's what Rivian has done with the Enduro motors.

 

[evguy]

Looking at all these numbers again, I think the dual motor, standard range LFP battery pack becomes an even more compelling option. IMHO, that configuration is a no-brainer for buyers who:

• Don't plan to tow anything
• Don't need more than 200 miles of range for their typical daily use case
• Can do L2 charging at home or work
• Won't do any real off-roading
• Don't care about race car acceleration

I think a lot of buyers will check those boxes. But if you're coming from an ICE vehicle, you're much more susceptible to the overpriced upsells (and Rivian is counting on it!).

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