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AmbassadorofSodomy posted:Are electric superchargers still snake oil? The new Mercedes mild hybrids use an electric motor to pre-spool the turbo, so kinda not? Thew next 6 cylinder C63 might have a more powerful version as well.
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May 28, 2021 00:59
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Turbos can consume hundreds of horsepower to operate. There are 746W per horsepower. Consider how powerful a motor is needed to do the same thing. You can use motors to spool the turbo as they aren't actually doing work, but anyone who claims to produce any significant amount of boost while an engine is making power is full of poo poo.
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May 28, 2021 02:40
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They do actually work. https://m.youtube.com/watch?v=7a_J2X88fSE It still can't keep up the boost at the maximum RPM and would probably run out of juice on a track but it seems like a possible solution for smaller engines like the 1.3 on my fit to give it a boot when accelerating
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May 28, 2021 09:28
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um excuse me posted:Turbos can consume hundreds of horsepower to operate. There are 746W per horsepower. Consider how powerful a motor is needed to do the same thing. You can use motors to spool the turbo as they aren't actually doing work, but anyone who claims to produce any significant amount of boost while an engine is making power is full of poo poo. Did you mean supercharger? Turbos work on effectively waste energy from the motor, supercharger are parasitic engine power to turn them. Darchangel posted:Yep, that’s correct. That actually how the Pursuit Special worked in reality minus one detail - the supercharger was always a fake (Mad Max II they claim it was operational) but the more iconic scenes it was a fake). The motor was however still very VERY healthy as the 351 it had was basically a hotted up Phase III / IV motor and genuinely near top level power for the day. I think most car people of the day would have suspended disbelief not at the clutched supercharger (because hey gently caress it, that poo poo looked cool and plausible!), but at the "600hp s-s-s-s-ucks nitro!". Nothing in Australia with a 351 made even close to that, with or without a supercharger OR nitro in 1979 and rev heads knew it.
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May 28, 2021 11:18
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CAT INTERCEPTOR posted:Did you mean supercharger? Turbos work on effectively waste energy from the motor, supercharger are parasitic engine power to turn them. Compressing that volume of air requires power, regardless of whether that power is coming from exhaust gasses or an accessory belt. Electric turbochargers should probably be called electric superchargers, but they would need a lot of power to compress air at sufficient quantities to be meaningful for an internal combustion engine. Edit: apparently they are called electric superchargers. I've only heard of them as electric turbochargers. Weird. Safety Dance fucked around with this message at 14:37 on May 28, 2021 |
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May 28, 2021 14:34
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I don't remember the source, but I once heard that all turbochargers are superchargers but not all superchargers are turbochargers. Turbocharger as a term is a compound word from turbine supercharger. Since the presence of a turbine is needed to satisfy the turbo definition, anything electrically driven would have to be a supercharger. That said I also have only heard them called electric turbos.
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May 28, 2021 15:19
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CAT INTERCEPTOR posted:Did you mean supercharger? Turbos work on effectively waste energy from the motor, supercharger are parasitic engine power to turn them. Most certainly not a 351, but they had this thing in the garage as well, who knows what parts were robbed from it (no idea what it was):  And I know there's one guy on instagram (evildodge) with a challenger hellcat who put the fake supercharger on top of the real one for the best of both worlds scenario, he's done some interesting bodywork on the front end to mimic the pursuit special. Not quite perfect, it's a bit stubbier than I would want, but not bad either:  By the way, how the hell do you nab an instagram picture url without linking the post? For the folks who don't want to join instagram. As Nero Danced fucked around with this message at 16:19 on May 28, 2021 |
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May 28, 2021 16:15
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As Nero Danced posted:
I'm sure there are some scrapers out there on desktop OR you view the page source and pluck it from there Otherwise, officially? You don't. 
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May 28, 2021 17:10
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um excuse me posted:I don't remember the source, but I once heard that all turbochargers are superchargers but not all superchargers are turbochargers. Turbocharger as a term is a compound word from turbine supercharger. Since the presence of a turbine is needed to satisfy the turbo definition, anything electrically driven would have to be a supercharger. Turbos were indeed originally called turbine superchargers. You can find docs from WW2 that get super confusing because they talk about, eg, the Merlin being "supercharged."
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May 28, 2021 18:03
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I want my next car to be mega charged.
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May 28, 2021 18:18
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As Nero Danced posted:Most certainly not a 351, but they had this thing in the garage as well, who knows what parts were robbed from it (no idea what it was): That's not half-bad. quote:By the way, how the hell do you nab an instagram picture url without linking the post? For the folks who don't want to join instagram. I use one of several websites that snag the pics and provide a download link. Same for other social media sites that like to try to prevent saving. For example: https://insta-downloader.net Some work better than others. Some only get the first picture if it's a multiple pic post, for example. Suburban Dad posted:I want my next car to be mega charged. So very '80s.
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May 28, 2021 18:28
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Blue Footed Booby posted:You can find docs from WW2 that get super confusing because they talk about, eg, the Merlin being "supercharged." Why is it confusing to talk about the merlin being supercharged?
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May 28, 2021 19:45
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As Nero Danced posted:And I know there's one guy on instagram (evildodge) with a challenger hellcat who put the fake supercharger on top of the real one for the best of both worlds scenario, he's done some interesting bodywork on the front end to mimic the pursuit special. Not quite perfect, it's a bit stubbier than I would want, but not bad either: this is real? the lighting makes it look like a render are the zoomies functional?
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May 28, 2021 21:29
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Blue Footed Booby posted:Turbos were indeed originally called turbine superchargers. You can find docs from WW2 that get super confusing because they talk about, eg, the Merlin being "supercharged." The Merlin was supercharged. The US Army Air Force terminology for turbos was generally “turbosupercharger,” which the Merlin was not. Only the USAAF used turbocharged engines to any significant degree, though pretty much everyone at least experimented with them. Examples include the P-38, P-47, B-17, B-24, B-29, et al. Most of the confusion in terminology is due to many late war aircraft engines using not just multiple-speed superchargers (multiple gear ratios used to overdrive the blower as altitude increased,) but also multiple stages (ie: a low stage blower and a higher pressure high stage blower.) The latter is the equivalent of a compound supercharger setup in modern automotive parlance.
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May 28, 2021 21:42
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U-U-U-U-ULTRA-CHARGED! I think there was an episode of Roadkill where they filled the back of a Monza with leaf blowers and ran ductwork to the engine, to test out the "electric supercharger" theory. I think the leaf blowers were gas-powered, but it's the same theory. I don't think the leaf blowers could generate enough boost for it to matter. They did a followup towing a trailer with a V8 on it, whose only purpose was to spin a big centrifugal supercharger which was then piped aaall the way up to the front. I think this sort of worked but went awry because Roadkill. Can't watch the video right now myself, but I think this is the second one: https://www.facebook.com/watch/?v=794842040671056
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May 28, 2021 22:11
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boxen posted:U-U-U-U-ULTRA-CHARGED! Someone should setup a turbo to blow on the driver's face, see what that feels like.
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May 28, 2021 23:38
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Like your face melting off.
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May 28, 2021 23:53
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boxen posted:I think there was an episode of Roadkill where they filled the back of a Monza with leaf blowers and ran ductwork to the engine, to test out the "electric supercharger" theory. I think the leaf blowers were gas-powered, but it's the same theory. How is it the same theory? The problem with electric forced induction (I don't care if you want to call it super or turbo) is that you have to make the power used to spin it somehow, usually the alternator, which takes power form the motor. So unless you are doing a hybrid thing, where you have significant battery storage it's bullshit. And even then, it's obviously never a thing that can be 100%. You need to store energy when you aren't using it, and dump that energy back into forced induction when you need it. Totally plausible, but not with a regular alternator and typical 12v starting battery.
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May 29, 2021 00:18
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May 29, 2021 00:37
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https://www.youtube.com/watch?v=1Mpaw58exSM https://wildonemax.com/
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May 29, 2021 01:01
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Raluek posted:this is real? the lighting makes it look like a render I think it is a rendering while he waits for paint, but it is real. He says the the exhaust pipes as functional too, I actually have a set of zoomie tailpipes similar to his but mine don't turn up- I need to find something to install these on, come to think of it. My Grand Marquis wasn't an idea candidate because they scraped like hell, I need to lift it already. Apologies for the terrible resolution and cropping, I'm on my laptop and my trackpad is being a pain in the rear end:    https://www.instagram.com/evildodge if you want to see more.
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May 29, 2021 01:11
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May 29, 2021 01:51
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Blue Footed Booby posted:Turbos were indeed originally called turbine superchargers. You can find docs from WW2 that get super confusing because they talk about, eg, the Merlin being "supercharged." Merlin engines are supercharged though? They experimented with turbos but the extra room required for the exhaust plumbing was a no-go.
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May 29, 2021 01:55
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Ultramegasupercharger. I seem to recall some sort of movie "My science Project" it was called had a guy driving a car with a "blower" and some douchebag in the car with him was all "hit the blooooowwwweeeeerrrr!!!!!!!!!" or some poo poo as they were trying to outrun electricity or something. I guess that means they had it set up so it could be bypassed. Thats my awful story thanks for reading.
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May 29, 2021 02:29
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As Nero Danced posted:I think it is a rendering while he waits for paint, but it is real. He says the the exhaust pipes as functional too, I actually have a set of zoomie tailpipes similar to his but mine don't turn up- I need to find something to install these on, come to think of it. My Grand Marquis wasn't an idea candidate because they scraped like hell, I need to lift it already. wow that looks... actually pretty drat good. im surprised
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May 29, 2021 02:38
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AmbassadorofSodomy posted:Ultramegasupercharger. Oh poo poo was that the one where he shoots a T-rex with a grenade launcher?
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May 29, 2021 02:51
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Safety Dance posted:Compressing that volume of air requires power, regardless of whether that power is coming from exhaust gasses or an accessory belt. Electric turbochargers should probably be called electric superchargers, but they would need a lot of power to compress air at sufficient quantities to be meaningful for an internal combustion engine. Okay well lets get pedantic..... because why not? So all methods of forced power adding are "supercharging". A parasitic compressor is generally just referred to as a plain supercharger (hence electric supercharger, it needs to draw off power from the motor to run), while a waste energy supercharger based off the exhaust gasses is a turbine superchager, usually shorted to tubosupercharger or just plain turbo. NO2 is a chemical supercharger as it changes the O2 in the combustion chamber. Annnnd then compound supercharging in all it's different variation OH! and then there's the guy that made a open wheeler that had a turbine jet engine to spool a compressor which in all honestly I'm not 100% sure kind of superchager you would call that other than awesome and I cant find the video right now but it's some hillclimbing special that went like a cut cat?
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May 29, 2021 02:54
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Something different from the BOM boys
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May 29, 2021 03:02
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Memento posted:Oh poo poo was that the one where he shoots a T-rex with a grenade launcher? I've only ever seen the one scene where the guy tried to outrun electricity, and that was like about 25 + years ago, at the insistence of my friend who was all like "OWE EMM GEE must watch this scene so awesome!!!!!" but looking at the wikipedia page it does mention something about fighting dinosaurs, so probably. wesleywillis fucked around with this message at 03:08 on May 29, 2021 |
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May 29, 2021 03:05
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CAT INTERCEPTOR posted:Okay well lets get pedantic..... because why not? Nick Mann's Mannic is the car you were thinking of: https://www.youtube.com/watch?v=6EMleegZQLw
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May 29, 2021 03:32
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CAT INTERCEPTOR posted:OH! and then there's the guy that made a open wheeler that had a turbine jet engine to spool a compressor which in all honestly I'm not 100% sure kind of superchager you would call that other than awesome and I cant find the video right now but it's some hillclimbing special that went like a cut cat? Edit: beaten Mannic Beattie https://youtu.be/uhWyP8TBYgw (Embedding disabled) Helicopter APU used it's bleed air solely to feed the engine. It is very much a turbocharger by definition, though it's thermodynamic model is based on both Brayton and Otto cycle since they are divorced. um excuse me fucked around with this message at 03:58 on May 29, 2021 |
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May 29, 2021 03:55
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Memento posted:Merlin engines are supercharged though? They experimented with turbos but the extra room required for the exhaust plumbing was a no-go. At least a couple air racers managed to make it work on P51s. I think the real problem is that turbos don’t like leaded gasoline - on the DC-7 they were officially “Power Recovery Turbines” but colloquially known as “Parts Recovery Turbines”.
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May 29, 2021 07:31
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This owns but needs more go.
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May 29, 2021 11:27
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quote:Lots of Hop-Ups including faster top speeds, more power and even the opportunity to convert your Wild One MAX to be road legal in some countries! More power and road legality is planned. Dorsnt seem to be enough space for an ICE in there though
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May 29, 2021 11:40
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I showed it to a friend and he's put a deposit down immediately due to his intense love of RC cars. I might get a chance to drive one at some point 
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May 29, 2021 11:55
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https://www.facebook.com/kaptainballistik/videos/10158415523083723 A certain AWD BRZ finally got a test day and promptly blew the alternator.
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May 29, 2021 13:12
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AmbassadorofSodomy posted:Ultramegasupercharger.
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May 30, 2021 04:23
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CAT INTERCEPTOR posted:https://www.facebook.com/kaptainballistik/videos/10158415523083723 Oooh I was just thinking about that car the other day.
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May 30, 2021 05:49
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Advent Horizon posted:At least a couple air racers managed to make it work on P51s. I think the real problem is that turbos don’t like leaded gasoline - on the DC-7 they were officially “Power Recovery Turbines” but colloquially known as “Parts Recovery Turbines”. PRTs are not turbochargers. PRTs are very literally turbine stages (generally only one stage, though most designs I’m aware of used a separate PRT on each side of the engine to keep the required turbine wheel smallish in order to keep the cowling profile slim,) that turn a shaft directly attached to the engine gearbox (or accessory gearbox,) and turn waste exhaust heat directly into additional rotational power. When you’re talking about a large ~3000hp engine, this can be several hundred additional horsepower.
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May 30, 2021 11:03
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MrYenko posted:PRTs are not turbochargers. PRTs are very literally turbine stages (generally only one stage, though most designs I’m aware of used a separate PRT on each side of the engine to keep the required turbine wheel smallish in order to keep the cowling profile slim,) that turn a shaft directly attached to the engine gearbox (or accessory gearbox,) and turn waste exhaust heat directly into additional rotational power. When you’re talking about a large ~3000hp engine, this can be several hundred additional horsepower. That's metal as gently caress. Just going to spin an impeller wheel and directly drive the gearbox with the output.
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May 30, 2021 11:10
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