A little 2023 R1T PDM AT Max 0-60 & 1/4 mile Dragy Fun

[CarlM408]

Got a very lightweight set of Atomic 20" wheels coming soon so needed some baseline data for comparison...

With the AT tires I was traction limited up to ~40MPH, then acceleration tapered off rapidly to around 60MPH, and then pretty consistent acceleration from there to maybe a second before the quarter mile mark when I hit the speed limiter.

Not bad at all for a 7,000lb truck, but also easy to see how more power would be more better!

SOC was in the 80%s, Sport mode of course, lowest & stiff suspension, stability/traction control 'reduced'.

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[DevonD]

What wheels and tires are you currently on?

 

[Dark-Fx]

Better than I could do with my quad. What about your 60-0 though?

 

[350Industrial]

You'd be better off in 'SOFT' suspension mode to allow for more weight transfer. Seems like it wouldn't matter in an AWD vehicle, but I get better traction when launching this way.

 

[beatle]

You'd be better off in 'SOFT' suspension mode to allow for more weight transfer. Seems like it wouldn't matter in an AWD vehicle, but I get better traction when launching this way.

I think you actually want as little weight transfer as possible to prevent the front wheels from unloading since each axle only has 354 hp to play with. I had a similar experience in the Lightning where the front tires would bark from a standstill.

OP's post is one of the main reasons I opted for the PDM vs a quad. From my test drive of a quad, I knew the 20ATs were traction limited at low speeds anyway, and it's not like I'm going to race anyone on the highway from 70 to 110mph, so the power advantages for that particular quad config were pretty narrow. Dual motors are great.

I would love to see an all-purpose run for comparison sake. I am frustrated that AP seems to be power limited in addition to having a mushy throttle response, especially since the truck always resets back to it after a sleep.

 

[350Industrial]

I think the different configs (motors and wheel/tire combos) could require different settings for optimal 0-60 times.

And agreed- please give us full power in AP mode!

 

[Crazychemist]

What software are you using? Pretty cool data. When I completed my R1T test drive, I felt like an astronaut getting shot into the sky thinking I was pulling 6 gs. Only later, I was completely humbled and found out it was <1 g and gained a new respect for astronauts as well as racing drivers!!

 

[CarlM408]

What wheels and tires are you currently on?

<- can see there in my profile pic, 20" AT Black.

 

[CarlM408]

What software are you using? Pretty cool data.

The screen shot is from the Dragy app, which goes with the Dragy GPS based race timer, nifty little tool for stuff like this.

I tried both Soft and also Low, but both options didn't deliver as good results as Firm/Lowest
(and I agree reducing weight transfer is probably the optimal idea with AWD).
That being said, could substantially depend on the pavement, more bumps might demand more suspension compliance for best results.

 

[brancky3]

Got a very lightweight set of Atomic 20" wheels coming soon so needed some baseline data for comparison...

With the AT tires I was traction limited up to ~40MPH, then acceleration tapered off rapidly to around 60MPH, and then pretty consistent acceleration from there to maybe a second before the quarter mile mark when I hit the speed limiter.

Not bad at all for a 7,000lb truck, but also easy to see how more power would be more better!

SOC was in the 80%s, Sport mode of course, lowest & stiff suspension, stability/traction control 'reduced'.

3.64 is faster than I expected for that config! I’m curious to see what difference the wheels make. I never retested mine after lightweight wheels (quad T) but I was at 3.03 seconds with the stock 21s.

 

[Treebeard]

I think you actually want as little weight transfer as possible to prevent the front wheels from unloading since each axle only has 354 hp to play with. I had a similar experience in the Lightning where the front tires would bark from a standstill.

OP's post is one of the main reasons I opted for the PDM vs a quad. From my test drive of a quad, I knew the 20ATs were traction limited at low speeds anyway, and it's not like I'm going to race anyone on the highway from 70 to 110mph, so the power advantages for that particular quad config were pretty narrow. Dual motors are great.

I would love to see an all-purpose run for comparison sake. I am frustrated that AP seems to be power limited in addition to having a mushy throttle response, especially since the truck always resets back to it after a sleep.

All modes on the quad, except conserve of course, have more power to the rear wheels. With the 21” wheels the launch is sick. Certainly lifts the front end. Conserve mode does suck, I think it should RWD in conserve.

 

[Treebeard]

Are you putting proper tires on for future testing?

 

[beatle]

All modes on the quad, except conserve of course, have more power to the rear wheels. With the 21” wheels the launch is sick. Certainly lifts the front end. Conserve mode does suck, I think it should RWD in conserve.

Right, but this post isn't about testing a quad, or 21s.

Are you putting proper tires on for future testing?

The reason the OP's test is so significant is that nobody seems to test performance with the very popular AT tires. Rivian already publishes the best numbers people can expect with a given motor size - and that's not with the 20s.

I don't think the point here is to see just how quick the truck can be, it's to show what a lot of people can really expect on the street with their trucks as they come from the factory. 20" wheels are very popular and are becoming more popular as people migrate to a size with more, less expensive tire options. I don't own a Dragy so I am glad to see the OP share his results as they're most relevant to what I have.

 

[CarlM408]

Yeah the point here is apples to apples between the stock AT setup and switching to light forged rims, therefore it will indeed be exactly the same tires. 20" rims with all-season or even stickier tires in the 'smaller' OEM diameter setup would certainly perform better and kinda be interesting to see, but that's not what I'm testing.

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