R1T off-road efficiency [data collected from 5 trails]

BillArnett · Oct 22, 2022

Another of our objectives for our recent trip was to see what kind of energy efficiency we would get when off road. Using the trip computer I got data from 5 trails:

R1T Off-Road Efficiency
Trail	Miles	kWh	Altitude Start	Altitude End	Gain	mi/kWh	Notes
Ophir Pass	9.7	8.8	9800	10000	200	1.10
Half Alpine	45.6	31.7	9400	9400	0	1.44	half fast, up to 12800
Old Hwy 10	30.1	11.5	7200	5350	-1850	2.62
Skyline South	82.8	57.7	5200	9800	4600	1.44
Skyline North	27.7	5.4	8800	6400	-2400	5.13	fast
total	195.9	115.1			550	1.70

The overall average implies a range of about 210 off-road miles (though it would be foolish to push it that far). For the entire trip, 2701 miles (including 196 off-road), 1404 kWh, 1.92 miles/kWh: not bad for AT tires at 80 mph most of the time.

gramurai · Oct 22, 2022

Great data! Thank you for taking the time to share.
Pretty good efficiency considering ?

I'm looking forward to running the Oregon end of the Transamerican trail soon: delivery in November if all goes well!

Bee · Oct 23, 2022

Holy flurking shnit this is probably more than 2x better than what I would have expected.

I'm so used to Rubicons popping their heads up and being like, "So I just got 5.1 mpg on that run" that I've been assuming > 1 mi/kWh as a rule for neutral to negative elevation gains.

I can't wait for more data to pour in but this puts a ton of overlanding into play I think I Was discounting at face value.

R1Sky Business · Oct 23, 2022

BillArnett said:
Another of our objectives for our recent trip was to see what kind of energy efficiency we would get when off road. Using the trip computer I got data from 5 trails:

R1T Off-Road Efficiency
Trail Miles kWh Altitude Start Altitude End Gain mi/kWh Notes
Ophir Pass 9.7 8.8 9800 10000 200 1.10
Half Alpine 45.6 31.7 9400 9400 0 1.44 half fast, up to 12800
Old Hwy 10 30.1 11.5 7200 5350 -1850 2.62
Skyline South 82.8 57.7 5200 9800 4600 1.44
Skyline North 27.7 5.4 8800 6400 -2400 5.13 fast
total 195.9 115.1 550 1.70

The overall average implies a range of about 210 off-road miles (though it would be foolish to push it that far). For the entire trip, 2701 miles (including 196 off-road), 1404 kWh, 1.92 miles/kWh: not bad for AT tires at 80 mph most of the time.

Good enough

R1Sky Business · Oct 23, 2022

BillArnett said:
Another of our objectives for our recent trip was to see what kind of energy efficiency we would get when off road. Using the trip computer I got data from 5 trails:

R1T Off-Road Efficiency
Trail Miles kWh Altitude Start Altitude End Gain mi/kWh Notes
Ophir Pass 9.7 8.8 9800 10000 200 1.10
Half Alpine 45.6 31.7 9400 9400 0 1.44 half fast, up to 12800
Old Hwy 10 30.1 11.5 7200 5350 -1850 2.62
Skyline South 82.8 57.7 5200 9800 4600 1.44
Skyline North 27.7 5.4 8800 6400 -2400 5.13 fast
total 195.9 115.1 550 1.70

The overall average implies a range of about 210 off-road miles (though it would be foolish to push it that far). For the entire trip, 2701 miles (including 196 off-road), 1404 kWh, 1.92 miles/kWh: not bad for AT tires at 80 mph most of the time.

Speed?

R1Sky Business · Oct 23, 2022

Bee said:
Holy flurking shnit this is probably more than 2x better than what I would have expected.

I'm so used to Rubicons popping their heads up and being like, "So I just got 5.1 mpg on that run" that I've been assuming > 1 mi/kWh as a rule for neutral to negative elevation gains.

I can't wait for more data to pour in but this puts a ton of overlanding into play I think I Was discounting at face value.

And.....improving!!!!

zipzag · Oct 23, 2022

Ophir pass

https://www.google.com/maps/@37.852...BYh6-2NFZ78Fc!2e10!3e11!7i3840!8i1920!5m1!1e4

BillArnett · Oct 23, 2022

R1Sky Business said:
Speed?

Probably not an issue. I wasn't going fast enough that the aero drag mattered much. Nor was I going so slowly that the non-propulsion loads dominate. My average for the whole set of trails was probably 20 mph or so.

zefram47 · Oct 24, 2022

Nice to see. My 4Runner gets something like 7-10 mpg on the trails and 15-20 mpg on the road/highway.

NooterIA · Oct 24, 2022

zipzag said:
Ophir pass

https://www.google.com/maps/@37.852...BYh6-2NFZ78Fc!2e10!3e11!7i3840!8i1920!5m1!1e4

Holy frick, that's nuts!! Thanks for sharing, confirms I'll be staying down by the ponds fishing while others climb mountains.

Blueassassin · Oct 24, 2022

Great info are these hard trails? like a lot of slow crawling that need full motor torque? or more back roads?

TriEluzai · Oct 24, 2022

BillArnett said:
Another of our objectives for our recent trip was to see what kind of energy efficiency we would get when off road. Using the trip computer I got data from 5 trails:

R1T Off-Road Efficiency
Trail Miles kWh Altitude Start Altitude End Gain mi/kWh Notes
Ophir Pass 9.7 8.8 9800 10000 200 1.10
Half Alpine 45.6 31.7 9400 9400 0 1.44 half fast, up to 12800
Old Hwy 10 30.1 11.5 7200 5350 -1850 2.62
Skyline South 82.8 57.7 5200 9800 4600 1.44
Skyline North 27.7 5.4 8800 6400 -2400 5.13 fast
total 195.9 115.1 550 1.70

The overall average implies a range of about 210 off-road miles (though it would be foolish to push it that far). For the entire trip, 2701 miles (including 196 off-road), 1404 kWh, 1.92 miles/kWh: not bad for AT tires at 80 mph most of the time.

Thank for sharing this info. I've been lurking for a long time (preordered early 2020), but your post put me over the edge to finally sign up!

To my point: Do you have any data you can share on the cargo weight and/or total vehicle weight in these scenarios? I'm trying to gauge how comparable this would be for my R1S once it’s fully decked out for overlanding with RTT and other equipment + 4 ppl.

av8or · Oct 24, 2022

Great info! I still don’t have my R1T, but have done a little off-roading with a few now, and range off-road far exceeds my expectations.

R1T off-road efficiency [data collected from 5 trails]

BillArnett

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gramurai

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Bee

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R1Sky Business

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R1Sky Business

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R1Sky Business

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zipzag

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BillArnett

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zefram47

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NooterIA

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Blueassassin

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TriEluzai

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av8or

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