Comments by "David Elliott" (@davidelliott5843) on "Munro Live" channel.

  1. Nissan is moving to electric transmission with a battery to absorb sudden loads. Over time, they’ll expand the battery and reduce the engine.
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  2. How about the whole door side being one casting?
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  3.  @Miata822  Making the car using parts bin components means a huge investment in - erm - parts bin components. Ford have spent that investment, so dont expect them to be starting again with more efficient designs.
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  4. That three phase connecting link is parts bin design or poor communication between design teams. Take your pick.
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  5. 1930s Germany and Russian Soviets were equally fascist. The only difference was Stalin pretended otherwise. Putin is trying today to recreate the same horrors that we “mistakenly” thought were closed down.
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  6. Another way to envisage the cable sizes. Feel the weight of a 120 volt extension cord. Now feel a 240 bolt cord. The latter is rated for double the power but the cord is lighter weight. There’s less copper.
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  7. Cross-liked PE (PE-X) is amazing stuff. Density can be adjusted and fibres can be added if needed. In U.K., PEX is replacing copper for home heating and plumbing. Design life is 50 years. I have some that’s 35 years old and just as good as new. Moulded with fibre reinforcement would make an extremely tough but low cost and recyclable material.
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  8.  @markplott4820  Hemp fibre mixed with PEX (cross-linked polyethylene) would be an amazing material.
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  9.  @yingnyang2889  I has a Reliant Scimitar sports estate that was made from fibreglass. It was T-boned by an ordinary tin car. The latter was undrivable. The Scimitar had a cracked door panel.
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  10. Tesla has the tech to make their own self driving processor chip. Why can’t they make their own canbus chips for every item in the car (light clusters, window winders, etc)? That should need just one single wire run around the car. You don’t need Bluetooth data over power will do the job with no external noise issues. Ethernet over 240V mains works perfectly. A simple command to light a bulb/lift a window, etc should be easy.
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  11. I want to see how the Hummer is done so we can see how far behind the traditional manufacturers really are.
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  12. What will road rash and salt do to that aluminium crush zone chassis part? It looks perfect for collecting some serious corrosion.
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  13. A discussion on battery life and reliability would be good. The EV haters always raise the expense of new batteries and of course fire risks. The background from Nissan Leaf through GM Volt/Bolt to Tesla would provide information to refute their negative claims.
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  14. Pity the mechanic who has to replace the steering rack. The whole subframe will have to come out of the car just to access four mounting bolts. Hopefully the fastener holes Ono aluminium are closed at the bottom end. If they are open (as is common on legacy cars) the threads will corrode and become near impossible to remove.
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  15. They say the cast under frame cannot be used on the front of cars for crash reasons. But Tesla do it and it’s well known that cats are built to push the engine under the floor pan in a crash. I can’t see that cast or pressed steel makes significant difference. Designing it the fracture in a predictable way is well within the capability of CAD systems.
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  16. They look like 5 point male Torx bolts. https://www.ebay.co.uk/sch/i.html?_from=R40&_trksid=m570.l1313&_nkw=183176795791&_sacat=0
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  17. I can’t agree with Sandy on fuel cells. The catalyst uses huge amounts of rare elements. They also waste 50% of the hydrogen as heat and manufacturing hydrogen is energy intensive. On top of that, they also need batteries as fuel cells don’t throttle nicely. Japan by the way is planning on using nuclear created hydrogen. PWR nukes generate H2 as a by- product and can be adjusted to make even more.
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  18. Who would have known about Sandy Munro if it was not for his Tesla stripdown.
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  19. I would like to have seen Tesla go to hydraulic suspension steering and brakes along the lines of Citroen. The old cars used engine power to drive a small hydraulic pump. This controlled ride height and suspension compliance giving an intrinsically controlled with extremely smooth ride. The same hydraulics powered the brakes (no brake fluid) and smaller brakes because of the higher clamping power. Steering was also hydraulic giving good driver feedback.
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  20. Fiats sold in U.K. use a plug in connector on the clutch hydraulics. It’s great for installation and replacement as the lines are supplied filled with fluid. Very neat. However the aluminium connectors and internal stainless spring clips suffer electrolytic corrosion. They seize solid and rot eventually eats around the O ring seals. It’s a clutch, so no big deal but the whole line has to be scrapped. Brakes would need external O ring seals to keep corrosion out of the internal springs.
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  21. Check out the cars with water bottle next to the coolant, both with a blue cap. How often does wash water end up going into the radiator?
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  22. VW love to have huge numbers of fasteners. The A4 dash panel has one every couple of inches.
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  23. The only necessary seat adjustment is to accommodate small children. It’s called a child seat. Everyone else is just fine on a bench seat.
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  24. I want to see an Archimoto that leans like a bike. You get the braking of two front wheels with narrow track for slicing through traffic. In busy London, the width limits it’s value. But a narrow track lean steering version would sell like hot cakes. Check out the Norman Hossack tadpole trike. Simple but very effective.
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  25. I’ve just rewatched this. Even a year later it’s just as impressive as last time. Sandy’s point about aluminium made me think perhaps the CyberTruck could have been made from aluminium. The simple lines would suit 3mm or even 4mm “ally”.
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  26. The changes to sell the CT in Europe are trivial. No different to what other truck makers have to do. The main issue is size. European roads especially in towns are much smaller than USA. We need 3/4 scale version.
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  27. In 2001, I was recovering from a disc prolapse at L5. GM seats were agony. Ford were better but not good enough. Peugeot Coupe seats were great but “normal” versions were not good. I eventually settled on the Audi A4 with sports seats. I could use that car for hours without aggravating my pain.
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  28. The door frame sides of a car could be cast along with the actual door frames and even the roof frames. Attach panels with adhesive such as used for windscreens.
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  29. This door cam could be made compliant with a same shape top carrying a little mirror.
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  30. It sounds like the castings have thicker ribs along the stress lines. Strength is added where it’s really necessary and minimised where there is leads load/stress on the metal.
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  31. I would want a 4mm aluminium bash plate ahead of the.battery pack to would take impacts well ahead of that very valuable battery.
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  32.  @lyfandeth  Fiat have had electric power steering at least since the Punto Mk2 (from 1999). It’s reliable and does the job. It’s old technology AND it copes with the shonky 12v electrical systems we are all lumbered with.
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  33. That programmable button advert has to be the first YT ad worth seeing.
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  34. Why is the ancient ladder chassis still being used? It’s inefficient, twists in use, performs badly in crashes and expensive to manufacture.
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  35. The model 3 version looks like a source of stress and potential for cracking. Flex tube and swivel on Y looks far more reliable.
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  36. The condensed gas is cooled to ambient in the condenser. When it’s evaporated into gas (in the evaporator) the temperature drops significantly. It’s this which gives the chilled air into the cabin. A home fridge-freezer works in the same way. Incidentally propane is cheap an excellent refrigerant and it has zero effect on the stratospheric ozone layer. Some might say it’s a fire risk but so is your gas lighter.
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  37. Probably due to the 2m social distancing rules.
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  38. It can’t be that hard to search for the company name.
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  39. 800 volts will help the current (amps) levels seen by motors, chargers and control systems, but it has no effect on the individual cell voltage and they still have the same power limiting tabs.
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  40. What a shame we can’t have that in U.K. for £15,000. Dream on.
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  41. I had a 2001 Audi A4 with the multi adjustable sports seats. I’ve not found anything better but maybe the new Model 3 has it.
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  42. A pair of those packs would go well in a motorbike.
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  43.  @MegaWilderness  Nobody has 48 Volt electrical systems. Cars are 12V. HGVs and busses are 24V. That’s it. Twenty years ago, Ford wanted 42V but the OEM equipment suppliers were not interested, so it never happened
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  44. If these can provide braking as effectively as normal brakes you could delete the hydraulics and friction systems.
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  45. Pouch cells are notable for self ignition properties. Jelly roll types are safer. LFP and LFP + Mn are better still.
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  46. I really dont like the way VW have refused to move right away from old design ideas. There is no reason to think that users should be molly-coddled. EVs give the perfect opportunity to rethink everything but VW missed the boat. I wonder how much other ideas have been held back by design tradition.
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  47. I don’t want the latest idea of futuristic (nothing dates faster than historical predictions. However why does a brand new car with brand new power source have to be supplied with the same old same old controls? Tesla rewrote the interior design and that had to be a good thing. Ford, VW, et al are struggling with the concept. The goofy load floor is another hangover. The design team needed a job.
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  48. Electric cars really should not need any hydraulic brakes. Regenerative braking does 80% of the work but it could do 100% with the right software.
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  49. My last new car was a 2001 Audi A4 Avant (fastback/wagon/estate). The door and dash trim in brushed aluminium ran continuously from one to the next - classy but understated. Other options were piano black (boring) and wood veneer (old hat). Seated were leather & Alcsntara giving a nice contrast. All leather cost megabucks more but just look ordinary.
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  50. Sandy Munro said these cells get hot at the ends. Cooling the flanks is arguably easier to engineer. However cooling the ends is more efficient and the flank spaces can be filled with silicone or PU foam. Which dramatically improves strength.
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