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Joined 11 months ago
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Cake day: December 4th, 2024

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  • At least in MN the way it works is that vehicles over a certain age can be registered as collectors vehicles and get special lifetime collectors plates. If you register a vehicle as a collectors vehicle then it doesn’t need any updated emissions or safety equipment. But at the same time it is illegal to use a collectors vehicle for daily driving. You are only permitted to drive it to/from shows/events and to take it on occasional pleasure drives. If you get caught making a grocery run with one then you get fined, the plates impounded, and you could even face jail time.

    This seems to work out pretty well here. It’s pretty uncommon to see these vehicles on the road outside of big events. And it doesn’t require owners to modify their classic vehicles when many pride themselves on keeping these vehicles as stock as possible.

    Edit: Also ethanol isca very bad idea for these vehicles. Firstly the seals and hoses on these vehicles are not designed for it so it destroys them, as someone else aluded to. But more importantly, these vehicles aren’t being driven regularly and ethanol is not stable to leave in the vehicles. When it ages ethanol breaks down into a varnish that covers everything and clogs the hell out of things like carburators. That is the reason that you want to use nonoxygenated gas (no ethanol added) on vehicles that aren’t driven frequently. Ethanol is the main thing that makes gas go bad. If you don’t have ethanol in there then the shelf life is extended dramatically. If you ran these vehicles on ethanol you would basically be requiring people to drain and dry every fuel carrying component whenever they wanted to store it (which should be often if you don’t want them daily driving them).












  • The thing is that predictability is always key when you’re driving no mater the situation. These are the same people who dont take their fucking right of way and wind up slowing down everyone. These are the same people who will stop inside a roundabout to let someone in and wind up causing a traffic jam.

    Being “nice” behind the wheel is just being an asshole because you want to pat yourself on the back. Don’t be “nice” while driving, be predictable.






  • They use adiabatic coolers to minimize electrical cost for cooling and maximize cooling capacity. The water isn’t directly used as the cooling fluid. It’s just used to provide evaporative cooling to boost the efficiency of a conventional refrigeration system. I also suspect that many of them are starting to switch to CO2 based refrigeration systems which heavily benefit from adiabatic gas coolers due to the low critical temp of CO2. Without an adiabatic cooler the efficiency of a CO2 based system starts dropping heavily when the ambient temp gets much above 80F.

    They could acheive the same results without using water, however their refrigeration systems would need larger gas coolers which would increase their electricity usage.


  • A lot of units now a days have a plastic coating on the discharge gas pipe which mostly prevents the corrosion issue. I am a refrigeration mechanic and while the condensate pan is one of the first areas I check for leaks, it also isn’t the most common area. It probably ranks in third place for frequencybof leaks on reach in units. I probably get 10x more leaks right in the evap coils. People just tend to notice the condensate pan leaks more because they’re on the high pressure side of the system so they’re going to be quick and relatively dramatic. Evap leaks can fly under the radar for years because they’re usually small and only result in gradually worsening performance.

    There are also alternative condensate pan designs which use sheets of a wicking felt like material standing up in the condensate pan to increase the surface area for evaporation. That plus the warm air from the condenser fan can often work just as well as the discharge gas heated pans without the corosion issues. The reason that more companies don’t do that is because using the discharge gas for evaporating condensation also means that you’re using the condensation to precool the discharge gas so it slightly boosts the efficiency of the unit.