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  1. jimchi

    An Engineer's Ultimate Guide To 3.21 VS 3.92 Axle Ratio

    i’m surprised this thread has gone so long. my understanding of the consensus is: 3.92: tow often, want fast off-the-line numbers, or are planning to get big tires 3.21: lots of highway driving, or everyone else honestly some of the more recent posts are really just people trying to justify...
  2. jimchi

    Continental Terrain Contact A/T

    FWIW they're the top rated All-Terrain Truck Tire on Consumer Reports, with the Michelin LTX A/T2 a close second.
  3. jimchi

    Adaptive headlights will now be allowed in the US

    Audi has a cool video showing what adaptive headlights can do: In short, they use similar technology found in a home theater projector. Using sensors, adaptive headlights can use high beams all the time, but selectively block parts of the beam to prevent other drivers from being blinded by...
  4. jimchi

    Tires dont feel fully planted?

    Just an FYI I think you selected "P Metric" tires in the calculator when, based on your door sticker, you should have selected regular "Metric" size. I reran the calculation, it's saying 37psi for the new tires: From tiresize.com:
  5. jimchi

    Tires dont feel fully planted?

    First off, the 40psi in your calculator seems incorrect. Are you sure your door jam sticker doesn't indicate around 35psi for the tires? The aftermarket sway bar, LT tires, and increased tire pressure have effectively stiffened your suspension. This would cause the "slipperyness" on bumps you...
  6. jimchi

    Stock tires

    Per Tire Rack, the Dueler H/L Alenza, rated 113T & 600AA, are the 20" OEM road tires. When bought retail, the warranty is 5 Year / 65,000 miles...
  7. jimchi

    ever wonder what's so complicated about computer chips?

    Why read and understand when you can just parrot an irrelevant soundbite? From the article:
  8. jimchi

    Driver Seat Doesn't Move Back As Far As Passenger

    There was a similar issue with my G8. I believe the driver's seat in that car did not move as far back because of the steering wheel airbag. The thought was that the airbag became ineffective at a certain distance, so the seat was limited in travel. On the G8 some people were able to remove...
  9. jimchi

    Poor FM Radio Performance

    You hit the nail on the head. The best antenna for receiving FM radio signals is what's called a "quarter wave monopole antenna," about 2.5' to 3' in length. Using some electronics, you can physically shrink an antenna while keeping it at the same "electrical length." The tradeoff is range...
  10. jimchi

    Ram getting rid of the 5.7 in favor of an Inline 6?

    I would have gotten a turbo or hybrid I6 if it was available. I remember hearing rumors of an FCA I6 for a few years now, but it seems the project has fizzled out under Stellantis. It would be cool if they do decide to make it. BTW, Those talking about how the electric grid isn't ready for...
  11. jimchi

    Gas stations that stop the pump at $100: not cool.

    In April 2021, the US produced 335,065 barrels of crude. Source: https://www.eia.gov/dnav/pet/pet_crd_crpdn_adc_mbbl_m.htm In April 2021, the US imported 248,006 barrels of crude from all countries. In April 2021, the US imported 20,641 barrels of crude from Russia. Source...
  12. jimchi

    Harmon Kardon Audio Quality

    I've got an HK system in my Limited. Disconnecting the sub did wonders. My music is mostly high quality streaming via Spotify. I wish I could put some sort of passive equalizer just on the sub. Keep it wired up, but with an independent volume control, just for the subwoofer. Anyone know if...
  13. jimchi

    ReCall Alert

    Sounds like a scam message. I haven't heard anything. If you're in the US, you can check NHTSA.gov to see if there are any open recalls for your vehicle: https://www.nhtsa.gov/recalls
  14. jimchi

    Looking for a timed fuse.

    Look for the "Engine Power Off Delay" setting under the "Key Off Options/Engine Off Options" menu. https://msmownerassets.z13.web.core.windows.net/assets/publications/en-us/Ram/2021/1500_DT/P117762_21_DT_OM_EN_USC_t_DIGITAL.pdf
  15. jimchi

    2024 Ram electric pickup

    I am an electrical engineer who has spent most of my career in the electric utility industry. My experience involves the design of electric distribution system installations including the latest generation of distribution smart grid equipment; as well as the design, installation, and testing of...
  16. jimchi

    Heads up. Be careful with Apple CarPlay spam texts.

    It’s not a virus or anything like that. IIRC, the .jar files are over the air updates for Uconnect via the Sirius system. No need for alarm- this issue has been covered previously in other threads.
  17. jimchi

    ***PEDAL COMMANDER UPDATE***

    It's a wonder some people's arms stay attached with the size of the chips on their shoulders :rolleyes:
  18. jimchi

    Self driving 1500 limited

    Do the connectors come with pins? Is a special tool required for crimping those pins on to the wires?
  19. jimchi

    Self driving 1500 limited

    Awesome, great job @Upandaway420! This is something I"m excited to try out myself at some point. With this being a community port, do we know what bugs or potential bugs or other issues may be present compared to the officially supported version? I'll note that Consumer Reports rated the...
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