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AustrianVespaGuy

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About AustrianVespaGuy

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  1. Mint! But just because I think the lighter shades look better on the smaller 2002s. Of the darker colors, I my opinion is that Jade is the nicest of the dark greens.
  2. This is a good way of looking at things, and a big part of that paradigm shift I was referring to, well said Dudeland! For the urban dweller, current EVs should be pretty darn good. (Though I still maintain, not as good as a bus, subway, light rail, and/or bicycle!)
  3. For comparison, I'll submit my favorite multimeter, with is analog rather than digital; I personally find it MUCH easier to read a slightly wavering needle than the ever flickering/changing numbers on the digital models. On the flipside, you DO need to set the correct range, but that's why I like this one in particular because on the 25VDC range, the 12.5V that cars operate at is dead in the middle! https://www.amazon.com/gp/product/B007IEFC8G/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
  4. This is the key reason why it can't and won't happen. Sure the market share will grow, and everything will inevitably be electrically driven, but it won't really 'take over' until there is infrastructure that allows us to bypass the storage issue. Like, say, an overhead or in-ground electrical supply pickup along all of the interstates (think like how a subway or commuter train works). Batteries will just never be able to cut it, for several reasons. Mainly, the energy density is too low. The best lithium batteries are still less than 1 MJ/kg, compared to liquid fossil fuels that are >40 MJ/kg, there's just no contest. Secondly, they're not really getting much better. The original iphone of over a decade ago would run basically all day and then you'd need to charge it overnight. Today's phones. . . same story. An order of magnitude improvement is unreasonable to expect. (But hydrogen fuel cells DO have an energy density somewhere in the 30s MJ/kg, so those are still a viable option, albeit with the safety challenges). Thirdly, we simply can't mine enough Lithium (along with the necessary cobalt and nickel) to be able to just replace the 260 some odd million vehicles on the US roads, let alone the world (granted it always amazes me that we can somehow get enough oil for all of them, but still, the challenge of scale is HUGE). Don't get me wrong, personally I really like electric vehicles, plan to own one in a few years, and do think they are the path of the future. But I think it's really important not to loose sight of the big picture. Yes Teslas are really cool and work pretty well. But not everyone can have one, and they're not really conducive to our current lifestyles. I know several owners and none of them has one as their ONLY car; they all have a 'regular' (usually a big SUV) car for family trips and such, and commute in the Tesla. Better than driving the Suburban to work? You bet! But no one is giving up those Suburbans yet either (unfortunately). My point is a paradigm shift is needed along with technology development before fossil fuels will ever really start to take a back seat. If in 5-10 years it turns out I'm dead wrong, I'll happily acknowledge it, (I though for SURE SD cards were going to supplant CD/DVDs for media storage, and never saw the streaming thing coming!) but for now I'm standing by my analysis that 50 is far more likely. I've said it before, but it's worth reiterating here, as the environmental aspect always comes up in such discussions. Anyone that genuinely, truly cares about the environment drives neither a gas nor an electric car to work; they either ride public mass transit or a bicycle. It really saddens me how true this statement is!
  5. I'm officially deeming this an unreliable source due to its glaring omission of the critical 079 Mintgrun paint code!
  6. By far my current favorite is the 14point7 Spartan 2, for the quality, price, and better LSU 4.9 sensor: https://www.14point7.com/products/spartan-lambda-controller-2 I like an oil pressure gauge, but find oil pressure to be rather redundant; really I can tell how warm my oil is based on the pressure at various engine speeds, particularly idle, now that I'm accustomed to it. That said, I only bothered with the pressure gauge after rebuilding the engine. If I hadn't done that, maybe temperature would've made more sense. As for A/F ratio, I didn't want to find the space for it (put the pressure gauge in the nook to the left of the cluster), so my solution was to built a little LED bargraph into the gutted fasten seat belt pod. Fairly simple circuit but slightly tricky to make the DIY board compact enough to fit it all in that space (AFR is on the left and battery voltage is on the right, looks like I need to hook up the charger!):
  7. Good for you, that's really their proper/intended use anyway!
  8. Yes and no, those F1 style electric turbos are still primarily driven by the exhaust gas stream, they just use the electric motor to spool the turbine up faster to help avoid the lag which would otherwise be present with a good sized turbine. More of a 'hybrid' turbo as opposed to the all-electric Torqamp gadget.
  9. Walnut Creek is a pretty nice little town where my favorite bicycle shop (Rivendell Bicycle Works) happens to be located. . . probably doesn't help solve your mystery much but if it works smoothly and is reasonably accurate my only conclusion is that they did a pretty good job!
  10. Gotta think things through logically; thermodynamics clearly say this won't work that well. A conventional turbo is essentially extracting work from the high temperature and pressure that the engine has ALREADY created from the exothermal chemical reaction and AFTER the majority of the work has been extracted from the Otto cycle. So aside from some additional pumping losses, it's basically extracting additional work from the 'waste' energy through the turbine process, and overall efficiency increases: more work output for close to the same energy input. (Interesting aside, the engines on the Titanic used this same concept: two reciprocating steam engines turned the outer two screws and the low-pressure steam exhausted from them was then used to drive a low pressure turbine that turned the center screw, raising both the power output and efficiency of the ship.) Now let's examine the electric compressor: how does this electric turbine get it's energy? From electricity (at a small efficiency loss). Where does this electricity come from? The alternator. How does the alternator make electrical power? It converts it from mechanical power (at another loss, of course). Where does the mechanical power come from? It's sapped from the Otto cycle of the engine (again at a loss), which is roughly equivalent to what a supercharger does, but with the additional losses involved with going through the mechanical-to-electrical-and-back-to-mechanical conversions that the supercharger bypasses, granted being electrical it no longer needs to be tethered to engine RPM, so that's kinda nice. But the to recap: Will it make more power? Sure, it allows you to burn more fuel, so yeah it'll make more power. Is it better than a supercharger? Probably about the same. Less efficient, but can operate independent of engine RPM, so let's call this one a wash. Is it better than a turbocharger? No chance, far less efficient and at only 48V can't operate at anywhere near the operating spectrum of a conventional turbo, plus with the batteries, I'm reasonably sure it's overall heavier. They didn't seem to put an intercooler on with it, which tells me it doesn't raise the intake pressure enough to warrant it. If it could, then it would still need an intercooler just like a regular turbo. So no, it's still inferior in pretty much every way. What would I spend my $2500 on if I wanted more power? ITBs obviously; they look better, sound better, are far less complicated, and are just plain more elegant than any of the above!
  11. Hidden kill switches are my favorite anti-theft device, but that said a highly visible steering wheel lock is clearly a great deterrent due to its obviousness. I think the basic 'Club' works in an 02, but sadly I don't know specifically of anything fancier than that to recommend.
  12. As long as you still have the 2002 also, I see no problem with 911 ownership. Having *only* a 911 with no 2002 fallback is not how I would ever choose to live life, but if you can have and drive both, then that's fantastic, have fun! The sound of that aircooled engine unencumbered by the downdraft IDAs is definitely the one of the most enjoying parts of that car!


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