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  1. Porsche Macan EV Official Specs & Photos Revealed

    I agree. With my model 3 performance in track mode is has plenty of regen to get decent braking in the twisties. (Even in my Lotus Elise, I tend to do OPD because it has pretty high engine braking when at high RPM.) But, I have more fun taking turns fast than accelerating/braking.
  2. Cybertruck. The beauty isn’t even skin deep.

    That's the CyberDiaper! I suspect it was added for aerodynamic reasons. They needed more range than good off road angles.
  3. R1S Unreasonably Fragile Roof Glass

    Yes. I probably have. But, it would obviously depend on the glass. For example, who has glass cups at home? When they drop, do they break? Well, the thin wine glasses do, but the thick good mugs don't. But the thick cheap mugs do. I just put a 13' christmas tree on my friends Ford Escape with...
  4. Official Photos: Jeep WagoneerS EV SUV (Updated w/ Interior)

    If there is a third row hiding in there, it's pretty small. I really wonder about the 400 mile range estimate with only 118kwh. 3.4 miles per kwh. Are there any other vehicles of this size with that level of efficiency? Model X maybe?
  5. cybertruck's offroading capability seems to be rather limited?

    It really seemed like if it had lockers it would have made it. I'm not sure the third wheel really had much traction. Maybe the wheels don't have enough vertical compliance (I forget the term) to conform to the surface as well as the other vehicles there, at least considering the much larger...
  6. Who has moved from 21” to 275/60r20?

    I've been reading the Toyo tire pressure chart recently, but I'm still trying to understand it. What is the load index of the M/S2? If it's 116 like the stock tires, you'll need to have at least 42 PSI to keep the same load carrying capacity, as that's what's needed for XL/RF tires to get the...
  7. R1 refresh update coming in 2024 with upgraded “Ascent” trim / model

    I'm not enough of a mechanical engineer to understand this patent application. But it looks like it's talking about a clutch disconnect (which one may hope is used as a locker) and then some better way of using different gears to lower the forces of something like a LSD between two independent...
  8. Cybertruck design engineer spilling secrets?

    Knowing what we do about Tesla, this seems pretty reasonable. I suspect GM (and other legacy OEMs) would require more completed tests before shipping any products. I'd bet Rivian would do this a little bit, but probably not as much as Tesla. They're all about 'fix it in post'. :)
  9. Consumer Reports 10 Most Satisfying Cars and SUVs for 2023 -- R1T & R1S Both Make List

    Rivian is the only brand with 2 in the top 10, and I think the only OEM as well. Are Kia/Hyundai from the same OEM?
  10. R1 refresh update coming in 2024 with upgraded “Ascent” trim / model

    The rumor is an updated quad motor system, likely based on similar motors the current dual motors. But, it could still have lockers.
  11. L2 charging (220v/12A) ...Why is it warming battery for 30 minutes before starting to add miles?

    I've definitely lost energy in my old Tesla Model S in the sub freezing temps. I was on a trip and had parked my car in the airport parking lot. They had shared 120V outlets there and I though, hey why not? Well, I checked on the car the next day and the percentage had gone down, not up...
  12. Electric Cooking options

    When I was looking for commercial induction cooktops, I noticed that they sometimes carries 1800W and 1500W versions for US and Canada respectively. So, you can always check the Canadian market.
  13. Who has moved from 21” to 275/60r20?

    It depends on the tire you have. SL tires reach their max load capacity at 35/36 PSI XL tires reach their max load capacity at 41/42 PSI So, anything above that PSI is just for handling and efficiency reasons (maybe noise) but not load capacity. But, the cold tire pressure should stay below the...
  14. snow and ice driving and tire pressure

    We're having a more detailed discussion here about how to calculate the tire pressure for E1 (80 PSI capable) tires. https://www.rivianforums.com/forum/threads/20-michelin-defender-ltx-platinum-tires-review-for-all-of-you-thinking-about-a-20-tire-your-wait-is-over.21866/post-466519
  15. Tire pressure recommended.

    If you want to know even more: https://www.toyotires.com/media/2125/application_of_load_inflation_tables_20170203.pdf
  16. 20" Michelin Defender LTX Platinum Tires review -- For all of you thinking about a 20" tire! Your wait is over!

    If I understand the Toyo tables correctly, it looks like for E rated tires on a Rivian you'd need about 55 PSI for LT275/60R20 50 PSI for LT275/65R20 But if their table is correct, it would have to apply to all tires of the same size in the same way of the same load rating. So the PSI would be...
  17. 20" Michelin Defender LTX Platinum Tires review -- For all of you thinking about a 20" tire! Your wait is over!

    Also, check this out: https://tiresize.com/pressure-calculator/ "Passenger type tires are fitted with a 10% overage in load capability when used on SUV's, Light Trucks, and Vans because of the difference in load handling. This load overage can be removed when changing to an LT type tire." That...
  18. 20" Michelin Defender LTX Platinum Tires review -- For all of you thinking about a 20" tire! Your wait is over!

    So, apparently it's not linear. (Edited to add:) But it looks like the actual load handing is better than linear. So you could still use the linear calculation and be safe. Or you could look at the pdf in the following link to do a more thorough calculation. For those that want to know the...
  19. 20" Michelin Defender LTX Platinum Tires review -- For all of you thinking about a 20" tire! Your wait is over!

    I haven't calculated it for these tires, but you'll likely need more than 50 PSI to reach the safe load rating See my explanation here: https://www.rivianforums.com/forum/threads/ordered-new-20%E2%80%9D-wheel-with-48mm-offset-from-tirerack.19135/post-421686





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