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Any bed cap vs. no cap range/efficiency data?

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TLDR; Do you have wh/mi data to share for bed cap (which cap?) vs. just a closed tonneau?

Hello all. New CB owner trying to collect data to decide on bed cap, pop-up camper, camper shell, pop-up trailer, etc. I did some cursory searches on bed cap range data but didn't find anything here. Ideally, I would like to have direct comparisons with about a year of data to account for wind, temperature, elevation change, and weight with bed cap model. For instance, my 3k mi lifetime wh/mi with no load is 410, nearly all with tonneau closed but a couple hundred miles of tests with a #4k railed trailer w/solid 4' tailgate on moderately hilly terrain and about 50/50 30MPH/65MPH speeds. In a couple pseudo-scientific real-life tests (not controlled), a 10-20MPH wind had a greater impact than payload:

#2k trailer 45MPH avg, 1,000' elevation; no payload, headwind: 800 wh/mi; tailwind: 600 wh/mi; +#2k payload tailwind: 700wh/mi

By way of comparison with R1T:
#10k trailer w/tractor/loader/backhoe (rails removed), 1,500' elevation: 900 wh/mi; #2k flatbed trailer: 550 wh/mi; #2k trailer with rails and sail, er, tailgate on in headwind: 800 wh/mi; tailwind 700 wh/mi

Thank you, aspiring sexagenarian DIY builder and light adventurer seeking to fully exploit FUSC and FSD before adventuring is no longer fun/I die.
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Based on TeslaFi data tracking over 5601.37 miles of mixed driving on the freeway, in the mountains and around the city (+3587 in FSD) at an average temperature of 49.73 degrees is 89 Wh.

I’m running a Space Campers cap with load bar, the rear faring and a Naturenest 270 plus awning installed.

Space Campers cap alone without load bars and the awning will be less but I haven’t measured it yet and don’t have an immediate plan to do that.

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I got my Spacecampers top last Thursday and drove from San Luis Obispo to Colorado. On the way, I had to do a couple long 200 mi stretches. Given I had only just gotten the cap, I wasn’t completely sure on how much cushion I should budget.

On my way from Maine to California, I would generally run Standard mode, and hitting my 10% target to supercharge was really easy. Standard was usually 7mph over speed limit.

So, going to Colorado, I budgeted 15% as my target SOC, and even driving 200mi highway stretches in winter over the Rockies, it was easy. My gut says a 5% difference, but it could be more.
 

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I got my Spacecampers top last Thursday and drove from San Luis Obispo to Colorado. On the way, I had to do a couple long 200 mi stretches. Given I had only just gotten the cap, I wasn’t completely sure on how much cushion I should budget.

On my way from Maine to California, I would generally run Standard mode, and hitting my 10% target to supercharge was really easy. Standard was usually 7mph over speed limit.

So, going to Colorado, I budgeted 15% as my target SOC, and even driving 200mi highway stretches in winter over the Rockies, it was easy. My gut says a 5% difference, but it could be more.
I was there 2/9 and picked up some Molle panels for the ceiling. Just missed you.
 

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Based on TeslaFi data tracking over 5601.37 miles of mixed driving on the freeway, in the mountains and around the city (+3587 in FSD) at an average temperature of 49.73 degrees is 89 Wh.
just to clarify, you mean it worsens your efficiency by 89 Wh/mi compared to without, right?
 


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Based on TeslaFi data tracking over 5601.37 miles of mixed driving on the freeway, in the mountains and around the city (+3587 in FSD) at an average temperature of 49.73 degrees is 89 Wh.

I’m running a Space Campers cap with load bar, the rear faring and a Naturenest 270 plus awning installed.

Space Campers cap alone without load bars and the awning will be less but I haven’t measured it yet and don’t have an immediate plan to do that.

IMG_1480.webp
That’s awesome. Can you tell us a little about your tire mount solution?
 

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just to clarify, you mean it worsens your efficiency by 89 Wh/mi compared to without, right?
Correct, I experienced an 89 Wh penalty with the Cap, load bars and awning.

For comparison, I experienced an 45 Wh penalty with the Goodyear Duratrac Winter tire set vs the Pirelli’s delivered with the truck.

Your results may vary, my expectation is the penalty will go down without the load bars and awning.
 
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TLDR; Do you have wh/mi data to share for bed cap (which cap?) vs. just a closed tonneau?

Hello all. New CB owner trying to collect data to decide on bed cap, pop-up camper, camper shell, pop-up trailer, etc. I did some cursory searches on bed cap range data but didn't find anything here. Ideally, I would like to have direct comparisons with about a year of data to account for wind, temperature, elevation change, and weight with bed cap model. For instance, my 3k mi lifetime wh/mi with no load is 410, nearly all with tonneau closed but a couple hundred miles of tests with a #4k railed trailer w/solid 4' tailgate on moderately hilly terrain and about 50/50 30MPH/65MPH speeds. In a couple pseudo-scientific real-life tests (not controlled), a 10-20MPH wind had a greater impact than payload:

#2k trailer 45MPH avg, 1,000' elevation; no payload, headwind: 800 wh/mi; tailwind: 600 wh/mi; +#2k payload tailwind: 700wh/mi

By way of comparison with R1T:
#10k trailer w/tractor/loader/backhoe (rails removed), 1,500' elevation: 900 wh/mi; #2k flatbed trailer: 550 wh/mi; #2k trailer with rails and sail, er, tailgate on in headwind: 800 wh/mi; tailwind 700 wh/mi

Thank you, aspiring sexagenarian DIY builder and light adventurer seeking to fully exploit FUSC and FSD before adventuring is no longer fun/I die.
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Just a quick data point

Since last July, we have delivered over 200 bed caps and are now working with several large clients on hundreds more. Right now we are collaborating with their engineering teams on the Gen 2.1 version. These bed caps are not just designs on a screen, we put them to the test every day. Between our two Cybertrucks, we have logged over 75,000 real-world miles. Unlike Spacecamper, who was selling their development Cybertruck, we continue to test, refine, and improve our products through hands-on use.
 

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Thank you. Can you confirm it has zero impact on the camera and FSD?
I think it might partially block the camera, but any aftermarket rear view camera could solve that. V14.2 will still work even with the tailgate down.
112478-1fafc7cf13edceebeaf03cc109ff0fe3.webp


Just doing some truck things today, but the load was just a bit too long to close the tailgate. After sitting in traffic for over an hour, I really missed FSD.

While charging, I decided to try something. I manually spun both side tailgate latches into the locked position so the truck thinks the tailgate is closed. FSD worked without any issues, even though the rear camera was pointing straight at the ground 😅

IMG_0814.webp
IMG_0810.webp


Not saying you should try this, but it definitely caught me by surprise!
 

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Just a quick data point

Since last July, we have delivered over 200 bed caps and are now working with several large clients on hundreds more. Right now we are collaborating with their engineering teams on the Gen 2.1 version. These bed caps are not just designs on a screen, we put them to the test every day. Between our two Cybertrucks, we have logged over 75,000 real-world miles. Unlike Spacecamper, who was selling their development Cybertruck, we continue to test, refine, and improve our products through hands-on to use.
I have 5600 miles of experience and 3 months of use and camping. Space Campers is not vaporware. It’s well made with high quality materials. We are very happy with ours. I’m happy you are having commercial success - good for you.
Your commercial success does not impact or minimize my experience.
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