Scorpion AS+ tire swap (from 20" Scorpion AT) - WOW big difference

[Riviot]

As said before in this forum. The T is more aerodynamic than the S. Why else would it get 347 in conserve mode versus the 328 of the S on 21’s with the same battery back? So for my S to have better mi/kWh than my T has merit. Unless you or anyone else has both vehicles on different wheels, this is the best data so far. I’m working on finding someone with 21’s on an S for a range test.

Have we confirmed the battery packs for both vehicles are identical? Does anyone have the old RIDE data for both to show battery capacity? Has Rivian published anywhere the actual capacity for both?

Even if you have 2 R1S's on different wheels, you can't compare the two. A real comparison requires the exact same vehicle with wheels changed out on the same exact route. There are plenty of examples here of R1Ts with 21s in more favorable environments (70s dry SoCal spring) getting the same or worse efficiency as my truck in wet PNW winter on 20 ATs. You might think your 4-5 mile route delta doesn't matter, but it does, it throws off your average from the initial power consumption to warm up the pack.

Controls matter, you have to remove as many variables as possible to get an accurate view.

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[usofrob]

I haven't seen anything actually confirm that the R1T is more efficient than the R1S. The R1S is lighter and they have the exact same cross section area. The EPA tests are very similar. And I think both the dual motor's are rated the same range now.
https://www.rivianforums.com/forum/...dual-motors-from-epa-filing.17123/post-365634

 

[Supratachophobia]

Have we confirmed the battery packs for both vehicles are identical? Does anyone have the old RIDE data for both to show battery capacity? Has Rivian published anywhere the actual capacity for both?

Even if you have 2 R1S's on different wheels, you can't compare the two. A real comparison requires the exact same vehicle with wheels changed out on the same exact route. There are plenty of examples here of R1Ts with 21s in more favorable environments (70s dry SoCal spring) getting the same or worse efficiency as my truck in wet PNW winter on 20 ATs. You might think your 4-5 mile route delta doesn't matter, but it does, it throws off your average from the initial power consumption to warm up the pack.

Controls matter, you have to remove as many variables as possible to get an accurate view.

They are the same pack.

 

[Riviot]

They are the same pack.

 

[SeaGeo]

I have both and have data. They're the same.

 

[SeaGeo]

As said before in this forum. The T is more aerodynamic than the S. Why else would it get 347 in conserve mode versus the 328 of the S on 21’s with the same battery back? So for my S to have better mi/kWh than my T has merit. Unless you or anyone else has both vehicles on different wheels, this is the best data so far. I’m working on finding someone with 21’s on an S for a range test.

I wouldn't be quite so sure, but it's not super clear. The r1s has the same EPA ratings for dual motor, and when range tested by OOS they were very close.

 

[Riviot]

I have both and have data. They're the same.

Internal logs or something similar? The Munro R1T breakdown showed the 7776 batteries and 135kWh*, have we seen the same for R1S? (Not facetious, but serious. I can't remember)

 

[SeaGeo]

Internal logs or something similar? The Munro R1T breakdown showed the 7776 batteries and 135kWh*, have we seen the same for R1S? (Not facetious, but serious. I can't remember)

Yes.

Also, practically speaking they wouldn't want to produce a second pack version for no reason.

 

[Riviot]

Yes.

Also, practically speaking they wouldn't want to produce a second pack version for no reason.

I stand by my original same-vehicle (at least same model) statement either way, weights and aero are very different.

 

[Supratachophobia]

Lol, it's the Internet, you prove it.

 

[Supratachophobia]

Yes.

Also, practically speaking they wouldn't want to produce a second pack version for no reason.

Bingo

 

[Riviot]

I hit 5k with my AS+3 today and measured tire wear. Drum roll please... ???

1/32" in 5k, completely even wear all around, kept at 48PSI cold. I started at 11/32" and I'll likely change out at 4/32", putting me on track for 70k miles with these babies. Wahoo! 35k miles ? (thanks to @Epicloop for pointing out my awful post-5pm math.)

Do I need to rotate if I'm getting even wear? That seems silly. I have a spare I'd rotate in, but now I'm thinking just let it ride.

 

[Supratachophobia]

I hit 5k with my AS+3 today and measured tire wear. Drum roll please... ???

1/32" in 5k, completely even wear all around, kept at 48PSI cold. I started at 11/32" and I'll likely change out at 4/32", putting me on track for 70k miles with these babies. Wahoo!

Do I need to rotate if I'm getting even wear? That seems silly. I have a spare I'd rotate in, but now I'm thinking just let it ride.

And just to circle back, you are getting similar if not better miles/kw than the 21's?

 

[Riviot]

And just to circle back, you are getting similar if not better miles/kw than the 21's?

No idea, I've never run 21s, but 2.45 mi/kWh in summer. I was getting 2.32 on OEM ATs in summer.

 

[LL75]

I hit 5k with my AS+3 today and measured tire wear. Drum roll please... ???

1/32" in 5k, completely even wear all around, kept at 48PSI cold. I started at 11/32" and I'll likely change out at 4/32", putting me on track for 70k miles with these babies. Wahoo!

Do I need to rotate if I'm getting even wear? That seems silly. I have a spare I'd rotate in, but now I'm thinking just let it ride.

I rotated mine at 7k on the 21" just because of recommendation. However, when I asked the discount tires tech to measure and he said all 4 tires are wearing out evenly. I will probably not doing anymore rotating until I need new tires.

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