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Speaking of hybrids, the Prius has a sort of thermos for its coolant. This way, it can keep a portion of coolant at a higher than ambient temperature for a surprising amount of time. If this was put on ordinary cars, they would be able to warm up much faster on cold days, as long as the car was driven the day before. It would be beneficial for both comfort and emissions purposes. I know a lot of cars have electric heaters, but this seems like a more elegant solution.
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Jan 24, 2013 13:46
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Going from a diesel to a Prius for defogging and defrosting windows is like night and day. Keeping the defroster running after it's necessary dings gas milage slightly due to it needing to run the engine, but that's not the end of the world or anything. After driving this car for close to a year if they can just cut the cost, I could see CVT hybrid transmissions replacing slushboxes anyhow. It's like apart from that and weight there's not that many disadvantages and due to the drivetrain being constantly engaged the mechanicals are closer to a fixed reduction gearset with a couple of constantly engaged PTOs than a normal transmission. Maximum torque for the existing automotive transmissions is crap maybe but that hasn't really been anyone's priority so far. I've heard that they've gotten really nice results using them in garbage trucks if for nothing else other than the sheer number of brake pads they go through, so I presume it's possible.
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Jan 24, 2013 15:35
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While we are talking about crazy things that haven't happened yet, I always wonder why they don't make a car with a small diesel engine, that runs all the time at peak efficiency, and charges a battery for an electric car. This is how trains work right? Is the technology just impossible to shrink down to the scale of a car?
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Jan 24, 2013 16:59
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bull3964 posted:Your ABS sensors can flake out now and cause just the opposite. People need to quite pretending they have direct control over their brakes anymore as it is, they haven't for about 10 years. Anytime we graft computer control over a manual system, the end result is always less reliable, more complex, and less functional than just actually controlling the thing directly with a computer. The difference I see here is that if an ABS sensor flakes out, you still have the ability to brake hydraulically just like cars always did before ABS came about. Sure, your ABS is gone but if you have the know-how to threshold brake, you'll be okay. Sure, not many people know how to threshold brake any more, so I guess they'd be prone to lock the brakes much like if an electronically controlled wedge got stuck in full-brake mode, but I think the effect would be less catastrophic. Actually I don't even know what I'm trying to argue any more. tijag posted:While we are talking about crazy things that haven't happened yet, I always wonder why they don't make a car with a small diesel engine, that runs all the time at peak efficiency, and charges a battery for an electric car. This is how trains work right? Is the technology just impossible to shrink down to the scale of a car? Diesel engines are heavy and expensive, batteries are heavy and expensive, and while it'd be a fantastic engineering spectacle, I just don't think the demand is there right now.
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Jan 24, 2013 17:03
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Basically, power-to-weight of diesel engines experience massive efficiencies at huge displacement. Less so at small displacements. Plus, meeting emissions standards is an additional challenge. The turbine is a cooler idea to me. You can run it multifuel and everything!!!
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Jan 24, 2013 17:23
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KYOON GRIFFEY JR posted:Basically, power-to-weight of diesel engines experience massive efficiencies at huge displacement. Less so at small displacements. Plus, meeting emissions standards is an additional challenge. The turbine is a cooler idea to me. You can run it multifuel and everything!!! I wonder if the upcoming lighter, lower compression Mazda engines change that at all.
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Jan 24, 2013 17:35
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Laserface posted:Electronically actuated valves, allowing for infinitely variable intake/exhaust timing.. Come on, its the future. MAKE IT HAPPEN. Fiat are already doing that, at least for intake valves: http://arstechnica.com/features/2012/10/more-bang-less-buck-how-car-engines-now-go-further-on-less/
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Jan 24, 2013 17:44
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I saw three new corvettes driving on the beautiful bush highway slightly northeast of phoenix. I saw them once going one way, and then again when I was backtracking. I saw the red, blue, and black colors. I must say, they looked pretty good in person. I do like the LED headlights. My brother amazingly just found the exact same corvettes on flickr by search recent corvette photos from the past week. http://www.flickr.com/photos/yh8life/8401231984/ These are definitely the cars I saw, on or very nearby the same road.
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Jan 24, 2013 17:49
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ethanol posted:I saw three new corvettes driving on the beautiful bush highway slightly northeast of phoenix. I saw them once going one way, and then again when I was backtracking. I saw the red, blue, and black colors. Here's the Jalopnik link. I'm sorry, but they still look bad, even in the daylight.  It looks like they have 4 of those inlets horns for turbos in the back 
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Jan 24, 2013 18:00
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Thanks for the link. I can't say I would ever buy a corvette anyways but I much prefer the new look over the last 20 years of corvette designs. That's pretty crazy that so many people are spotting these unreleased cars, including myself. Is this some kind of marketing campaign now? I guess it's always a marketing campaign.
ethanol fucked around with this message at 18:06 on Jan 24, 2013 |
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Jan 24, 2013 18:03
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ethanol posted:Thanks for the link. I can't say I would ever buy a corvette anyways but I much prefer the new look over the last 20 years of corvette designs. That's pretty crazy that so many people are spotting these unreleased cars, including myself. Is this some kind of marketing campaign now? I guess it's always a marketing campaign. Last minute testing before release, they just don't camo them now since the car has been unveiled.
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Jan 24, 2013 18:12
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Meanwhile, in go-really-fast news: The Hennessey Venom GT just set the world record for 0-300 km/h acceleration and was verified by Guinness on a back to back run. Does it in just 13.6 seconds. Compare that to the Veyron which does 0-300 in a little over 18 seconds. Youtube link to the run
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Jan 24, 2013 18:18
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Devyl posted:Meanwhile, in go-really-fast news: Guinness should've stipulated a requirement that more than 5 units of the record-setting car have to exist.
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Jan 24, 2013 20:48
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Hello Spaceman posted:Guinness should've stipulated a requirement that more than 5 units of the record-setting car have to exist. They should also stipulate that you do it with an engine you own too.
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Jan 24, 2013 21:48
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KozmoNaut posted:Speaking of hybrids, the Prius has a sort of thermos for its coolant. This way, it can keep a portion of coolant at a higher than ambient temperature for a surprising amount of time. Previous gem, yes. And I believe it was a salt solution with a heart exchanger to the coolant. Current gen has a heat exchanger in the exhaust. Again, no reason you couldn't get hold of one, graft it on to your exhaust & hook it up to your coolant cycle with a thermostat somewhere & get the same benefit.
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Jan 24, 2013 22:09
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Devyl posted:Here's the Jalopnik link. I'm sorry, but they still look bad, even in the daylight. I like the warpaint around the tail lights. Reminds me very strongly of those HSV Commodores' front ends.
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Jan 25, 2013 00:10
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The Midniter posted:The difference I see here is that if an ABS sensor flakes out, you still have the ability to brake hydraulically just like cars always did before ABS came about. That's not always true though. Your ABS can flake out in a way that renders you completely and utterly unable to apply any brake pressure. When your ABS control unit takes over, it takes over and overrides your braking ability. That the very basis of ABS. The abs system just has to decide that your brakes are locked up 100% and they will override your attempt to apply pressure. This was actually a very well known defect in the ABS system in early WRXs. Uneven terrain had the ability to confuse the abs system to the point where all braking pressure was completely gone.
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Jan 25, 2013 02:28
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bull3964 posted:That's not always true though. 
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Jan 25, 2013 03:59
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He's not just talking about ice mode, he's also talking about the ABS system treating a wheel as being locked and cutting fluid flow to it - but the system "thinks" it's working properly, so it doesn't flag up any faults or bring the light on, you just find out when you hit the brake and one of your calipers doesn't respond. You both have reduced braking force and a strong pull to one side. It's very unsettling.
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Jan 25, 2013 17:18
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InitialDave posted:He's not just talking about ice mode, he's also talking about the ABS system treating a wheel as being locked and cutting fluid flow to it - but the system "thinks" it's working properly, so it doesn't flag up any faults or bring the light on, you just find out when you hit the brake and one of your calipers doesn't respond. You both have reduced braking force and a strong pull to one side. It's very unsettling.  Why wouldn't the system turn the light on if it thought a wheel was locked? Or was that the fault? How do you even fix something like that?
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Jan 25, 2013 18:14
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grover posted:Oh crap.
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Jan 25, 2013 18:36
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Devyl posted:Here's the Jalopnik link. I'm sorry, but they still look bad, even in the daylight. True story: my wife was driving around and saw the black one in the other photos. Her first reaction was to dismiss it as some horrible body-kitted abomination being driven to the auctions in town. GM may have closed down the proving grounds (they're almost nothing but rubble, I managed to get some lockers from there for my garage) but they still do a lot of testing in Mesa. In the past two months I've personally seen a diesel Colorado and the next-gen Silverado undergoing testing wtih loaded trailers, both fully camoed.
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Jan 25, 2013 18:54
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InitialDave posted:Because it's doing its job, cutting fluid to a locked wheel until it starts to rotate again - but if the "locked wheel" is due to a duff sensor, it'll never "start" to rotate. Some systems might have a logical check in them to say "Ok, seriously, there's no way a wheel can still be locked, something's up" and stop interfering - but it may not have, and if it does, it might not react fast enough, and it wouldn't help if the fault was elsewhere, like the solenoid pack. Yup. We've already inserted computers between us and our driving and given them override capability. So, we've been at the mercy of software and sensors flaking out and causing problems for awhile now. Incidents can happen and do sometimes happen, but the good far outweighs the bad for the most part. That's why the concept of electric brakes doesn't bother me. You can make the power supply MORE robust than hydraulics for cheaper and control software and sensors are already something that has us at its mercy if it decides to take over. Think of all of these adaptive cruise control systems or automatic backup avoidance systems that exist now. What if your system decides you are backing up into a child at 60 mph down a highway or that traffic has stopped dead in front of you when it hasn't? The control is there, but the software has proper safety interlocks to prevent that from happening. So, anything anyone is afraid of with electric braking systems is already a potential issue with today's systems. bull3964 fucked around with this message at 19:38 on Jan 25, 2013 |
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Jan 25, 2013 19:36
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Muffinpox posted:Last minute testing before release, they just don't camo them now since the car has been unveiled. I saw a few of them running around Warren (near the GM R&D centre)back in December right before Christmas and came buckets  . The new Viper came through the drive through of the pharmacy I work at yesterday and I had a nice chat with the guy for a few minutes about how he liked it. He said it was a lot more refined and controllable than the previous Viper but still a wild child. The Viper looks like a overly-shiny Need For Speed car but I'd still drive it 
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Jan 25, 2013 19:43
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I want to like the new corvette, and from some angles I do, but I just can't overall. Not only that, does anything else think from the front the new viper and corvette look incredibly similar now? I never thought i would confuse a viper for a corvette, but I was scrolling through another thread where someone posted a picture of a new viper on a road trip and I thought it was the corvette at first glance.
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Jan 27, 2013 10:07
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kimbo305 posted:I like the warpaint around the tail lights. Reminds me very strongly of those HSV Commodores' front ends. That's not (just) paint: 
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Jan 27, 2013 16:32
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every new vette should come with a pair of these:
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Jan 27, 2013 17:52
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mobby_6kl posted:That's not (just) paint: Those must be vents to cool the blinker fluid.
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Jan 27, 2013 17:54
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leica posted:Those must be vents to cool the blinker fluid.
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Jan 27, 2013 18:25
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leica posted:Those must be vents to cool the blinker fluid. Why does the Corvette Stingray have so many vents? Here's why: http://www.autoblog.com/2013/01/27/why-does-the-corvette-stingray-have-so-many-vents-heres-why/ e: transmission and differential cooling, I believe. MrSaturn fucked around with this message at 02:49 on Jan 28, 2013 |
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Jan 28, 2013 02:46
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Endless Mike posted:They couldn't have POSSIBLY put those on without having non-round taillights! All of the round taillight renders I've seen have been terrible. It's not like they didn't try it out on a bunch of their designs or anything.
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Jan 28, 2013 02:52
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fknlo posted:All of the round taillight renders I've seen have been terrible. It's not like they didn't try it out on a bunch of their designs or anything. Yeah, I imagine any venting on the kammback with round taillights would look worse.
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Jan 28, 2013 07:43
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http://www.allpar.com/news/index.php/2013/01/2014-2015-chrysler-200-engine-choices News on the next generation Chrysler 200 indicate that it's being jointly designed by both Chrysler and Lancia's engineers, who've been at Auburn Hills for a while according to an insider. It's going to represent an entirely new direction for the former unlike anything they've previously made. Makes me wonder if we'll get an AWD SRT6 out of the deal after the car arrives. Tekne fucked around with this message at 22:44 on Jan 28, 2013 |
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Jan 28, 2013 22:42
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"Segment competitive" would be an entirely new direction.
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Jan 30, 2013 04:49
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The road that my uni is on passes right next to the Chrysler test track, and this morning I saw a small-ish car that wasn't a Dart booking it on the course... I'm rather curious what it was now. I'm going to guess it's not that, probably an Alfa or something, but man 
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Jan 30, 2013 05:07
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KYOON GRIFFEY JR posted:"Segment competitive" would be an entirely new direction.  Tusen Takk posted:The road that my uni is on passes right next to the Chrysler test track, and this morning I saw a small-ish car that wasn't a Dart booking it on the course... I'm rather curious what it was now. I'm going to guess it's not that, probably an Alfa or something, but man
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Jan 30, 2013 06:35
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Devyl posted:Meanwhile, in go-really-fast news: Hennessey is a dipshit but that goddamned car is evil. If you told me a 15 years ago that there would be multiple cars pushing close to 300mph and actually driveable on the street, I would have called you crazy.
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Jan 30, 2013 09:44
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VikingSkull posted:Hennessey is a dipshit but that goddamned car is evil. If you told me a 15 years ago that there would be multiple cars pushing close to 300mph and actually driveable on the street, I would have called you crazy. What to me is even more insane is that those cars have the brakes and handling to contain that kind of power. 15 years ago if you had a 750Kw car, it was a straight line bullet with brakes that melted after a few hard stops and evil handling because the chassis couldnt handle the power. You can take a Venom GT by the looks of it and cut a seriously fast set of flat out laps without killing yourself. It's not chassis compromised. THAT's some goddamn impressive poo poo.
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Jan 30, 2013 10:46
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VikingSkull posted:Hennessey is a dipshit but that goddamned car is evil. If you told me a 15 years ago that there would be multiple cars pushing close to 300mph and actually driveable on the street, I would have called you crazy. Nothing yet is "pushing close to 300mph" 267mph is farther from 300mph power wise than it is from 100mph. Hennessey claims the venom can do like 275mph, but he also claims he can build cars and isn't a complete twat. Surprisingly there are bigger assholes than hennessey out there too, like these fuckin guys. http://www.gtr-xs.com/performance-goals.html 0-60 in under 1 second, 5.6 second quarter mile, 315mph top speed, all in a convertible! It takes 1900hp in a stripped ford GT to do 266mph in a standing mile, and these geniuses want to hit 260mph in the quarter mile with 2000hp. If you want to see what 300mph takes, look no further than this FWD triumph GT-6 is a 305mph car.  
Powershift fucked around with this message at 11:20 on Jan 30, 2013 |
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Jan 30, 2013 11:01
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https://www.youtube.com/watch?v=7ODBL2r0vwA While it's not a production car, performance power's ford GT managed to hit 283mph (verified by guinness world Records) in a standing mile, but you can't hear or see much of it in this lovely video. I'm guessing they sold the footage to speed, velocity, or even a more
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Jan 30, 2013 11:34
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