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http://www.parkflyer.ru/blogs/view_entry/12001/ I can't believe how little blood there is. If this were me, every shot would have a red tinge. e: another one, http://www.parkflyer.ru/blogs/view_entry/11990/ Powershift fucked around with this message at 04:25 on Jul 14, 2015 |
# ? Jul 14, 2015 04:22 |
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# ? Jun 5, 2024 08:59 |
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https://www.facebook.com/forgedperformanceaustralia/photos/a.598380380238939.1073741832.575575192519458/849412325135742/?type=1&fref=nf I'll be in my bunk.
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# ? Jul 14, 2015 05:07 |
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To spin a turbo up to an RPM where it's actually making boost has got to draw an insane amount of amperage, right?
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# ? Jul 14, 2015 06:17 |
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The electric driven part of it is only being used as ALS, I would imagine a motor would only draw a fraction of the current required to spin the turbine up to full speed if it's just maintaining after the turbo has already been spun up by exhaust gasses.
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# ? Jul 14, 2015 06:26 |
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hackbunny posted:My own Japanese dream: Add the fact that Honda City's could be had with the best option a car has ever had - the Motocompo.
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# ? Jul 14, 2015 07:30 |
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davebo posted:Between the Autozam and the Honda City I thought I was playing Gran Turismo 4 for a second. Man, that looked like some bullshit there. I guess the question is, did the Vette deserve it for bumping him in that last corner? If he hadn't bumped him could he have made the pass? I can't believe that the pit crews didn't rush each other after that. I think the Vette missed the real opportunity when he made that outside pass in traffic. It looked like he could have trapped the lead Porsche behind the lapped Porsche and shot past both of them, but I suppose his line would have been all hosed up in the next corner. I don't watch racing regularly so I don't know, but that was pretty cool overall. If races were always like that I might watch. Previa_fun posted:To spin a turbo up to an RPM where it's actually making boost has got to draw an insane amount of amperage, right? That's the basic question. That or they step the voltage up to lower the current, which seems more likely on a modern car. Still gonna take some power though. I remember some version of the Vector W8 claimed to have electric motors that held the turbos at 30k RPM minimum to eliminate lag, driven by one way clutches so the turbos could spool freely over that. If it existed It never made it to other production cars obviously.
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# ? Jul 14, 2015 07:39 |
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Previa_fun posted:To spin a turbo up to an RPM where it's actually making boost has got to draw an insane amount of amperage, right? Look at those cables. Look at them.
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# ? Jul 14, 2015 08:12 |
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davebo posted:Between the Autozam and the Honda City I thought I was playing Gran Turismo 4 for a second. The City was my starter car in Gran Turismo 6! I immediately sold the Fit they force you to buy and had enough spare money for the City, which I remembered fondly from What's up Mechadoc (the other cars anime): https://www.youtube.com/watch?v=pyllSae0lBY&t=358s Great beginner's car in GT, used the crap out of it until I upgraded to a Peugeot 205 T16 (and its appalling 80s suspensions). Shame that both cars still have the PS2 graphics
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# ? Jul 14, 2015 10:57 |
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davebo posted:Between the Autozam and the Honda City I thought I was playing Gran Turismo 4 for a second. Was the Porsche driver penalized? I hope not, that corvette had it coming. Awesome finish.
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# ? Jul 14, 2015 13:23 |
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davebo posted:Between the Autozam and the Honda City I thought I was playing Gran Turismo 4 for a second. Holy poo poo. I know it is from 2009, but this had me on the edge of my seat. What excellent racing.
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# ? Jul 14, 2015 15:16 |
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Commodore_64 posted:Look at those cables. Look at them. You'd be surprised. There are 3 of them, that plus the speed at which turbos spin (and the fact that they're using it alternately as a motor/generator, just like a prius drivetrain - alternators are typically 3 phase as well) basically guarantees they are running 3 phase brushless DC motors. With how fast those motors spin and the fact that they're almost certainly using some sort of high frequency DC-DC converter to drive them when in boost maintenance mode, at least 80% of the cross section of those cables are almost certainly insulation, shield foil, shield braid, more insulation, and a layer of thermal insulation and/or mechanical sheathing to keep the cables from being damaged. The cables that run a Prius BLDC are like 5/8" diameter each, but the center conductor that actually carries current is only about 10AWG. The highest draw in something like that is going to be trying to spin the turbo up from a dead stop, or when it's in use as an auxiliary alternator, I would bet.
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# ? Jul 14, 2015 15:48 |
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LloydDobler posted:Man, that looked like some bullshit there. I guess the question is, did the Vette deserve it for bumping him in that last corner? If he hadn't bumped him could he have made the pass? I can't believe that the pit crews didn't rush each other after that. Yeah I don't know how bad a bump that was, but any time you make contact I guess there's the potential you spin the other guy out and someone dies, so it's really not cool if it's intentional. I can't say if it was intentional or not but Bergmeister slamming Magnussen into the wall sure as hell was. I understand that Magnussen must have been really craving that win though because the Corvettes were only in the last half of that season (5 races) and he had already won 2 of them, so to come in the last half and win a majority would have felt pretty good. But geez those Corvettes have won so god drat much you gotta just sit back and rest on your laurels once in a while. kill me now posted:corvette racing really needs to go back to having the back 3rd of the car be black. I'm watching the Mosport race from this year on my dvr and all yellow isn't nearly as badass looking C6.R was cool but I loved the C5.R with just the black fanny.
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# ? Jul 14, 2015 16:36 |
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sadnessboner posted:Add the fact that Honda City's could be had with the best option a car has ever had - the Motocompo. Hell yes, I want one of those.
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# ? Jul 14, 2015 17:27 |
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That electro-boosted turbo is neat, but nowhere near as batshit crazy as this car. https://www.youtube.com/watch?v=6EMleegZQLw The compressor is driven by a small gas turbine engine at all times for constant boost.
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# ? Jul 14, 2015 17:30 |
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Anti-lag you say? How about a dose of 80's anti-lag courtesy of Audi? This is just a really neat and AI read in general.Bufkin Engineering posted:
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# ? Jul 14, 2015 17:55 |
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what is audi's reason for having the intake and exhaust ports on the same side of the motor?
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# ? Jul 14, 2015 18:39 |
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They aren't. Intake on the left, exhaust on the right.
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# ? Jul 14, 2015 18:55 |
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BraveUlysses posted:what is audi's reason for having the intake and exhaust ports on the same side of the motor? I don't know if it is their reason, but traditionally it offers better warm up performance and better emissions. Edit: Thanks for the picture. Yes that is definitely cross flow. I'm not super familiar with Audi motors other than stories about the money pit they become. HFX fucked around with this message at 19:53 on Jul 14, 2015 |
# ? Jul 14, 2015 19:15 |
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I can see why he thought that: Those look like potential inlet ports, but I think that's just weight reduction versus a solid flange. But yes the Audi head sure looks like a cross-flow to me. I think a lot of the designs that have them on the same side are for packaging - for example on a Jeep 4.0, the pushrods use the space on the side of the head with no manifolds, so the intake and exhaust ports don't have to also leave room for them. The SOHC Nissan L-series we had in a 280ZX for a while seems like it would have been great on a RHD car since there was gently caress-all in that side of the engine bay.
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# ? Jul 14, 2015 19:20 |
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GramCracker posted:Anti-lag you say? How about a dose of 80's anti-lag courtesy of Audi? This is just a really neat and AI read in general. It forgets to mention how cool it sounds: https://www.youtube.com/watch?v=lmb_HtUILHA
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# ? Jul 14, 2015 20:15 |
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hackbunny posted:It forgets to mention how cool it sounds: The AAN might be my favorite engine noise of all time. Or a Colombo V12. The ProSpeed S1 replica is pretty freakin awesome https://www.youtube.com/watch?v=f841sP_mtyE GramCracker fucked around with this message at 20:36 on Jul 14, 2015 |
# ? Jul 14, 2015 20:30 |
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Powershift posted:http://www.parkflyer.ru/blogs/view_entry/12001/ Oh wow, I actually couldn't tell it was a model
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# ? Jul 14, 2015 21:23 |
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Having the exhaust and intake on the same side of a decently big I6, like the Jeep 4.0, means that you can stick everything else on the other side without much hassle. Easy to reach oil filter, distributor for the older ones, spark plugs, etc. without all the intake/exhaust in the way.
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# ? Jul 14, 2015 22:02 |
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Is nobody going to ask what that mechanic is wearing??
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# ? Jul 14, 2015 22:55 |
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Its a head flashlight, it's just taken at a weird angle. You can see his eyes just barely underneath it.
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# ? Jul 14, 2015 23:37 |
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dreesemonkey posted:Was the Porsche driver penalized? I hope not, that corvette had it coming. Awesome finish. No he didn't but I'd say he deserved a penalty that should only be to him and not his co-driver in which they won the championship at the end of that day. Oh and if you're wondering if the C7R has a better paintscheme than that, Larbre Competition is running a car that the Pratt and Miller had to borrow for at least Watkins Glen since they demolished the other one at Le Mans.
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# ? Jul 15, 2015 05:25 |
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Boy that's a helluva looker.
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# ? Jul 15, 2015 20:39 |
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Commodore_64 posted:https://www.facebook.com/forgedperformanceaustralia/photos/a.598380380238939.1073741832.575575192519458/849412325135742/?type=1&fref=nf Related to this: I can't find any info online about it, I'm probably searching the wrong thing, but I met a guy a while back who is working on the next generation of 18 wheeler engines and their turbocharger system will be similar to this but very different. The driveshaft of the turbo will be coupled directly into the driveshaft of the engine itself via a mechanical gearbox! Excess energy from the turbo will be released into the driveshaft directly, instead of venting excess boost to the atmosphere, gaining efficiency. So cool.
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# ? Jul 15, 2015 21:32 |
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Vitamin J posted:Related to this: I can't find any info online about it, I'm probably searching the wrong thing, but I met a guy a while back who is working on the next generation of 18 wheeler engines and their turbocharger system will be similar to this but very different. The driveshaft of the turbo will be coupled directly into the driveshaft of the engine itself via a mechanical gearbox! Excess energy from the turbo will be released into the driveshaft directly, instead of venting excess boost to the atmosphere, gaining efficiency. So cool. Sounds like a combination of turbocharging and turbo-compounding, which was a thing long ago in aircraft engines, although I don't know if they used gearboxes back then. What was old is new again, history repeats, etc.
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# ? Jul 15, 2015 21:38 |
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Vitamin J posted:The primary reason this was developed for F1 was for the motor/generator to act as the wastegate and absorb excess energy instead of bleeding off excess boost, and then storing the electricity for electric drive assist, saving energy and boosting output power. Using the motor to spin up the compressor and eliminate lag is just an added benefit. I love this stuff. I've been saying trucks are getting far too simple, and need more unservicable, complicated systems bolted on.
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# ? Jul 15, 2015 22:30 |
Enourmo posted:Sounds like a combination of turbocharging and turbo-compounding, which was a thing long ago in aircraft engines, although I don't know if they used gearboxes back then. They did use gearboxes if the engines I saw at the aeronautical museum were any indication. Powershift posted:I've been saying trucks are getting far too simple, and need more unservicable, complicated systems bolted on. Nobody gives a gently caress about that type of stuff because a few extra hours and tears for the mechanic is meaningless compared to the aggregate benefit of even a fractional increase in fuel efficiency as far as transport companies are concerned, and rightfully so.
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# ? Jul 15, 2015 23:17 |
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A lot of companies give a gently caress about that type of stuff. There are some decent sized companies running entire fleets of older trucks to escape the complexity of the modern emissions systems, either complete rebuilds on their old trucks or new glider kits. At this point, a 2006 T800 is worth $20k more than a 2008. With modern trucks, if you need 10 trucks, you have to buy 11 and hope to have at least 9 running at a time. Not a big deal for a company with 500 trucks, but a serious issue for a company with 5.
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# ? Jul 15, 2015 23:38 |
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I love the trailer plate.
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# ? Jul 15, 2015 23:47 |
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angryhampster posted:
Europe/Australia/Asia (anywhere that's not subject to the US's poo poo car laws) must be such a magical place for a gearhead.
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# ? Jul 16, 2015 00:16 |
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Imgur gallery - man loves his adopted rescue, Cupcake. Night Danger Moose fucked around with this message at 01:31 on Jul 16, 2015 |
# ? Jul 16, 2015 00:43 |
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Lord of Garbagemen posted:Europe/Australia/Asia (anywhere that's not subject to the US's poo poo car laws) must be such a magical place for a gearhead. Because you can't have Vipers in America? And I'm 99% sure that Honda doesn't have an engine in it.
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# ? Jul 16, 2015 01:07 |
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Vitamin J posted:The primary reason this was developed for F1 was for the motor/generator to act as the wastegate and absorb excess energy instead of bleeding off excess boost, and then storing the electricity for electric drive assist, saving energy and boosting output power. Using the motor to spin up the compressor and eliminate lag is just an added benefit. I love this stuff. Early DD15s. It was a separate turbine after the turbocharger, attached to [witchcraft], in turn attached to the geartrain (timing gears). They stopped using it a couple years in because it only helped efficiency in a very narrow band of real-world applications, and even then just barely enough to offset the extra cost.
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# ? Jul 16, 2015 01:28 |
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angryhampster posted:
Should have the F1 pointed the other way. Not sure why, just rubs me the wrong way somehow.
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# ? Jul 16, 2015 01:55 |
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meatcookie posted:Should have the F1 pointed the other way. Not sure why, just rubs me the wrong way somehow. He probably tried that, but the downforce on the rear started pushing down on the back of the trailer, lifting the front of the trailer/back of the car off the ground.
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# ? Jul 16, 2015 01:58 |
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# ? Jun 5, 2024 08:59 |
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I never realized they were that drat big.
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# ? Jul 16, 2015 02:01 |