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Gears being pushed around by fluid instead of a direct mechanical connection. All of the "fancy" stuff in an autobox is related to the valve and solenoid system that pushes the gears where they want to go, and can be ignored if you're just trying to get a grasp on their basic operation.
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# ? Apr 13, 2013 01:10 |
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# ? May 13, 2024 03:47 |
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Hikaki posted:Dude just wants more oversteer what's wrong with that It's on backwards, not just the horrible AOA.
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# ? Apr 13, 2013 03:23 |
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I just discovered a false friend due to this thread: In German, a Tachometer is what you guys call a speedometer (and the word for what you guys call a tachometer is "Drehzahlmesser").
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# ? Apr 13, 2013 03:53 |
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Shifty Pony posted:I love my TDi and all... but drat do they have a disappointing exhaust note. There's the diesel rumble/clatter but behind it I just can't help but hear the audio equivalent of https://www.youtube.com/watch?v=JGbsgpp2YJQ Also part 2: https://www.youtube.com/watch?v=0Qf6O0oAs7U
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# ? Apr 13, 2013 04:55 |
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Shifty Pony posted:
Many years ago, I remember leafing through a fairly comprehensive book on do-it-yourself car repair and diagnosis. There was a brief "chapter" on automatic transmissions, that said something like this: "Most parts and systems on an automobile are easily understandable and serviceable by the layperson with appropriate tools and instructions. However, an automatic transmission is not one of these parts or systems." End of chapter.
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# ? Apr 13, 2013 08:36 |
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Yeah, I'm mostly a "remove and replace... with a manual if possible" kind of guy when it comes to autos. Things that involve black magic: differential R&P setup, auto transmissions, 80s GM tilt steering columns. Soon as I pick up a few more tools I'm going to start learning how to do differential setup, but the others can go to hell...
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# ? Apr 13, 2013 09:07 |
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kastein posted:Yeah, I'm mostly a "remove and replace... with a manual if possible" kind of guy when it comes to autos. Diff setup is just a very precise alignment in 3d; the good gear engagement makes sense, once you learn the tricks. Automatic valve bodies?
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# ? Apr 13, 2013 16:52 |
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Kachunkachunk posted:Eric the Car Guy is one of the coolest cats around that might explain it for you: Sticker on top of the failed transmission says it's an A640. e: Equally surprising, there's a horde of manual transmission purists in the comment section! Truly, their driving skills would match the greatest of any Finn if only mom's redgubbinz fucked around with this message at 17:36 on Apr 13, 2013 |
# ? Apr 13, 2013 17:30 |
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EightBit posted:Diff setup is just a very precise alignment in 3d; the good gear engagement makes sense, once you learn the tricks. Automatic valve bodies? Agreed. Auto valve bodies are basically a hydraulic analog computer, so I SHOULD understand them pretty easily, but every time I look at one, it's just an utter mindfuck. Gear setup is one of those things I think I'll enjoy once I have the tools and a little experience.
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# ? Apr 13, 2013 17:38 |
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I understand how slushboxes work and have built a handful. Women...Now that is black magic. :
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# ? Apr 13, 2013 18:16 |
Kachunkachunk posted:Eric the Car Guy is one of the coolest cats around that might explain it for you: Thanks! Now I have a much better understanding of how it all gets the gear ratios set. But that valve body I'm guessing if you were designing a simple transmission with only computer control, no concern for smooth shifting, and no throttle/speed feedback or anything you could make one with just some solenoid actuated valves coming off a manifold but drat if that isn't a hydraulic maze and a half.
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# ? Apr 13, 2013 18:45 |
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KozmoNaut posted:Nah, but being a dick about it is a terrible thing. The red light creeper thing was relevant, getting all high and mighty because you drive a car with a "real" transmission wasn't. Yeah I wasn't gonna mention it there since enough people in that thread called him out, but he did come across pretty full of himself. Especially for a supposed VAG fan who are doing such great things with DSG, acting like manuals is the only way a true driver can experience the road comes off pretty elitist for an activity that should be more about having fun.
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# ? Apr 13, 2013 18:45 |
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I've also found Ate Up With Motor's history of auto transmission development to be useful in understanding slushboxes and how the modern design came about (be sure to read pt 2 aas well.)
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# ? Apr 13, 2013 19:49 |
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Those Eric The Car Guy videos were awesome, thanks for linking them!
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# ? Apr 13, 2013 20:30 |
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I had to double check that this was the terrible car stuff thread, since those transmission videos were so neat. Being rich is almost like a handicap
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# ? Apr 13, 2013 22:52 |
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Ready to rip hektik skidz:
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# ? Apr 14, 2013 03:19 |
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enterthemirror posted:Ready to rip hektik skidz: Yeah, it's low rent but dont hate on db8s
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# ? Apr 14, 2013 03:21 |
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Found while researching Bronco Cummins swaps:
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# ? Apr 14, 2013 03:55 |
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Pull off the stacks, dual rears, and hood scoop and I'd drive the poo poo out of it. That goes double if the fishbowl and horns go away too.
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# ? Apr 14, 2013 03:58 |
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kastein posted:Pull off the stacks, dual rears, and hood scoop and I'd drive the poo poo out of it. Do all that, and I'm pretty sure you end up with my girlfriend's bronco (unfortunately the best photo I have of it at the moment): which is what I was casually browsing diesel swap info for
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# ? Apr 14, 2013 04:08 |
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I love bronco talk! I have a 93 and a 73 sport. This 93 is my daily, and I hear constant OJ jokes.
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# ? Apr 14, 2013 04:13 |
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Number_6 posted:Many years ago, I remember leafing through a fairly comprehensive book on do-it-yourself car repair and diagnosis. There was a brief "chapter" on automatic transmissions, that said something like this: "Most parts and systems on an automobile are easily understandable and serviceable by the layperson with appropriate tools and instructions. However, an automatic transmission is not one of these parts or systems." End of chapter.
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# ? Apr 14, 2013 17:55 |
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I had an early 90's Haynes Manual for a MK4 Ford Escort (it was my first car and it was an RS Turbo replica ok) and it went through how to rebuild the gearbox and stuff like that. When it finally died a death that was suprisingly not me rolling it like most 17 year olds I picked up a brand new haynes manual for its replacement a mighty Nissan Bluebird (stop laughing at the back it was a ZX Turbo!) and the whole gearbox section had been replaced with that kind of stuff. I find it highly unlikely rebuilding a Ford gearbox is going to be much different than a Nissan one so I can only conclude they started removing stuff like that due to stupid people ruining their gearbox or because the Shadowy Mechanics Union got to them.
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# ? Apr 14, 2013 18:39 |
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grumplestiltzkin posted:I had to double check that this was the terrible car stuff thread, since those transmission videos were so neat. I'm guessing they're all visually impaired from the way they parked. I had a terrible car stuff encounter last night at dinner. No pictures sorry. I'm eating my dinner when the four people at the table next to me loudly begin arguing about cars. More specifically, street racing. What followed really was like "VTECKICKEDINYO.GIF" in real life. Highlights included: 1) What speed you needed to be doing before the cops wouldn't chase you further. 2) Who's car is louder (Because loud equals fast you know!). 3) Remember that time I did that mad burnout and hit the telephone pole? As I left, I decided to go for a walk thru the lot, figuring I could pick out which car was theirs. drat it was simple. Early 2000s Civic Si, in good shape actually. Naturally, it slammed with a "racing" steering wheel (who needs airbags?) with purple metal column and the worlds largest sticker with the name of their "racing" shop on the side. They seemed to be finishing up, so I made my escape before I actually had to operate a motor vehicle in the vicinity of them. Aurune fucked around with this message at 18:44 on Apr 14, 2013 |
# ? Apr 14, 2013 18:42 |
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Aurune posted:I had a terrible car stuff encounter last night at dinner. No pictures sorry. I'm eating my dinner when the four people at the table next to me loudly begin arguing about cars. More specifically, street racing. What followed really was like "VTECKICKEDINYO.GIF" in real life. Highlights included: I have no idea why this is such a popular subject among brainpower-challenged car guys. It always seems to come up. Yeah, everyone knows that Danish cops usually don't give chase above 180-200kph or so, the idea being that they would simply be further endangering everyone else on the road. That doesn't mean you can outrun them. Ain't no car or bike made that can outrun a Motorola.
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# ? Apr 14, 2013 21:34 |
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Not that I condone it, but I've gotten away a few times in the past. If you're in the right area and have a head start it's not that difficult. I only mention it because your post makes it seem like running is totally irrational and will always fail.
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# ? Apr 14, 2013 22:48 |
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Honestly, if you're in a situation where you're being chased by the police, chances are that you did something really stupid and illegal. Don't do that and you won't have to worry about outrunning the police.
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# ? Apr 14, 2013 22:53 |
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Who's ready for a montage of fail at the Tail of the Dragon?! It's cool though: he had his driving gloves on!
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# ? Apr 15, 2013 04:37 |
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Holy poo poo. He looked so calm throughout the whole ordeal. Almost as if he was in denial about the whole crash. I got this
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# ? Apr 15, 2013 04:52 |
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I think it was more like I'mdeadI'mdeadI'mdeadI'mdeadI'mdeadI'mdead than anything. If you've been on the Dragon, you've seen there are many places where if you go too fast into a turn and understeer through it, you are ramping some serious airtime into serious dead time.
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# ? Apr 15, 2013 04:56 |
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So what happened there? Went off and the exhaust lit up some leaves?
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# ? Apr 15, 2013 05:23 |
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opengl128 posted:So what happened there? Went off and the exhaust lit up some leaves? Catalytic converters can get pretty hot, it's very plausible.
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# ? Apr 15, 2013 05:25 |
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For sale, bare metal respray, interior needs some work, well kept by fastidious owner, this is one hot number that won't disappoint.
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# ? Apr 15, 2013 05:26 |
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Carteret posted:Who's ready for a montage of fail at the Tail of the Dragon?! While I cannot guarantee that I would have kept my head throughout an ordeal like that, it is why I carry one of these in my car:
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# ? Apr 15, 2013 05:51 |
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The guy was just trying to take the shortcut, geez.
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# ? Apr 15, 2013 07:10 |
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He went from the Tail to the Mouth of the Dragon. Complete with fire-breath. But its ok, he had his kevlar gloves on
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# ? Apr 15, 2013 12:58 |
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PainterofCrap posted:While I cannot guarantee that I would have kept my head throughout an ordeal like that, it is why I carry one of these in my car: That looks a little small for that situation
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# ? Apr 15, 2013 14:32 |
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You'd be surprised how little a 2.5/5 pound extinguisher will do, especially when you have no access to the underside of the car where it's setting things on fire. Carry a bigger extinguisher. Like, at least a 5 pound strapped down anywhere within reach (while belted in), another 5 or 10 pound within reach from the front seats, and preferably a larger one elsewhere as well. A fire sometime last year burnt one rear corner of a friends jeep, sent a friends wife to the hospital with burns to her feet, and took nearly 30 2.5-pound extinguishers to actually put out. If they hadn't been at an offroad park with lots of people carrying extinguishers (required equipment by most parks and clubs) around them, it probably would have been a total loss. Also, that's on a big jacked up jeep, getting at the fire is obviously much more difficult on a sportscar/lowered vehicle, especially one that's slid off the road and buried itself on top of an embankment. Hell, I carry either a 10 or 20 pounder (I forget, it's the big kitchen size one) in my pile of poo poo jeep, I generally carry two but haven't replaced one after using it up a while ago. kastein fucked around with this message at 14:37 on Apr 15, 2013 |
# ? Apr 15, 2013 14:35 |
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JP Money posted:It's not like you're going to be hitting the rev limiter in every gear on an economy car. Hi, my name is Trouser Chili, how would you like to take a drive with me? There are many reason I daily drive a Mercedes 240D (with no tach!), one of which is that I seem incapable of not flogging the poo poo out of anything I happen to be driving at the moment. When I flog the poo poo out of my 240d, I keep up with traffic. When I flog the poo poo out of my ITR, I get a new municipal driving award monthly. wayfinder posted:I just discovered a false friend due to this thread: In German, a Tachometer is what you guys call a speedometer (and the word for what you guys call a tachometer is "Drehzahlmesser"). Thank you! This has helped in my search to add a tach to my W114. trouser chili fucked around with this message at 21:39 on Apr 15, 2013 |
# ? Apr 15, 2013 21:17 |
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# ? May 13, 2024 03:47 |
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trouser chili posted:Hi, my name is Trouser Chili, how would you like to take a drive with me? I think it's quite, I don't know, rewarding, I suppose, to have someone complain that their basic car is too slow, and be able to show them that there's a whole 4,000rpm they're not using, and actually it'll make quite decent progress if you grab it by the scruff of the neck and make it work. That there's no magic to it, you can learn to extract what performance there is and make the best use you can of it.
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# ? Apr 15, 2013 21:33 |