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found this while browsing Turbobricks and it's too batshit not to share. This is a Volvo B21 with some stuff. quote:I have run it @ 30lb on the single SU quote:Garrett TO4 m trim 45 mm wastegate (450 HP). Twin HS6 SU's with bigger needle and seat's and bigger jets, custom manifolds, Low comp pistons, IPD cam, twin fuel pumps, water methonal. 4 Puk comp clutch, otherwise its almost stock.  https://www.youtube.com/watch?v=2qbeRnRDLtk https://www.youtube.com/watch?v=I442s9fO6jU   https://www.youtube.com/watch?v=wW5Uiy1pE7Q https://www.youtube.com/watch?v=vjGONWyxD4s
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Dec 6, 2014 08:43
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Here's some AI poo poo from the Porsche museum: 914/8 Yes, you read that right. They made a special edition for one of the higher-ups with an 8cyl. gently caress I love the Germans. It doesn't look a lot different than a 6, but I assure you, and anyone who has visited the museum will confirm, it's an 8.  
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Dec 6, 2014 13:27
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atomicthumbs posted:found this while browsing Turbobricks and it's too batshit not to share. This is a Volvo B21 with some stuff.
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Dec 6, 2014 13:40
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atomicthumbs posted:found this while browsing Turbobricks and it's too batshit not to share. This is a Volvo B21 with some stuff. This car is awesome, and I miss living in TAS.
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Dec 6, 2014 14:50
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InitialDave posted:Man, draw-through carburation on a turbo, been a while since I saw that. A long long time for me too. Maybe 1995 and Wayne Dysons RX3, TO4 turbo and 55mm side draught weber. Just before the import turbo motors were available and cheap, also aftermarket ECUs (microtech, haltech, motec, wolf etc)
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Dec 6, 2014 15:58
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atomicthumbs posted:found this while browsing Turbobricks and it's too batshit not to share. This is a Volvo B21 with some stuff. This thing looks clean as hell. Nice
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Dec 6, 2014 16:25
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 http://www.saabplanet.com/incredible-saab-99-quattro-ultimate-sleeper-with-709-whp/
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Dec 6, 2014 17:21
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Fo3 posted:A long long time for me too. Maybe 1995 and Wayne Dysons RX3, TO4 turbo and 55mm side draught weber.
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Dec 6, 2014 18:46
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My brother wants to turbo his twin SU spitfire, I don't know enough to tell him whether to go blow or suck through. It'll kick as either way I'm sure.
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Dec 6, 2014 19:01
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neckbeard posted:
Not the first or second time this is posted in the thread but you won't hear me complaining. No need to steer while drifting an Alfa 75, just let go of the steering wheel: https://www.youtube.com/watch?v=HLr8rXv-Jjo DoLittle fucked around with this message at 19:25 on Dec 6, 2014 |
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Dec 6, 2014 19:23
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InitialDave posted:Interesting he's using SUs, as they sometimes get used for blow-through setups, like the factory one on the MG Metro Turbo. I know naff all about Su carbs, weren't common here, more of a UK/Europe thing, though I had a mate with a 180b SSS that came with twin SUs. That's about it except some holden 6 cyl cars had triple zenith-strombergs (I've never worked on them but know they operate similar). It's was all weber down here for 4s and rotaries (DCOE, IDA, IDF, DCO, plus the old 32/36 DVG often stock fitted to ford 4cyl imports), and the odd dellorto for things like fiats and other Italian cars, so if turboing it was always draw through, except I do remember one crazy aftermarket turbo blow through set up on a Japanese 4 or rotary - possibly with a weber type carb, back around 1992, so pre internet and impossible to find. I've tossed my 1990s mags and books where I might have seen it. Could have been single 2" SU and I remembered wrong. E: drat really want to find it now. Late edit: found enough evidence to suggest they existed, rotary shack sells weber kits and plenums for blow through weber rotaries. But I still think I saw a SU one too back in the day. Life is simpler now with EFI, so anyways... Fo3 fucked around with this message at 20:00 on Dec 6, 2014 |
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Dec 6, 2014 19:37
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wallaka posted:It was a joke, goon. Wow, sensitive crowd.
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Dec 6, 2014 19:49
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Skidplate saved my motor after I hit a big part of a prerunner Ford Ranger front suspension on the freeway at 80mph last night.   The marks on the inside of the plate are where the cast aluminum skid plate contacted, bent around, and rubbed against the oil pan on the way home. 
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Dec 6, 2014 23:01
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neckbeard posted:
Engine's the wrong way around.
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Dec 7, 2014 00:39
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atomicthumbs posted:Engine's the wrong way around. Not to mate up to the Quattro transmission.
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Dec 7, 2014 01:58
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DoLittle posted:No need to steer while drifting an Alfa 75, just let go of the steering wheel: https://www.youtube.com/watch?v=HLr8rXv-Jjo That is mesmerizing to watch.
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Dec 7, 2014 02:10
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 Didn't get a chance to ask the owner anything but good god.
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Dec 7, 2014 02:41
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IOwnCalculus posted:
Mother of gently caress. 
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Dec 7, 2014 03:01
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Close the thread, that guy won.
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Dec 7, 2014 04:16
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The truck was bagged to within a couple inches of the ground, too. Had my phone's camera not been so lovely, or my daughter not so insistent that we keep rolling (there was a blow-up snowman in the bed of a Mini pickup that she really wanted to see  ), or the crowd around it not been so big (especially for a small show) I would've tried to snag more.Instead, have these shots of a trio of manufacturer-plated Viper hardtops. Presumably they were heading out to AZ88 to, ah, 'test' the handling    
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Dec 7, 2014 04:20
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BlackMK4 posted:Skidplate saved my motor after I hit a big part of a prerunner Ford Ranger front suspension on the freeway at 80mph last night. drat, good thing the skidplate was on there. Were you just driving along and suddenly his parts dumped out or what? Makes me glad I just scored an OEM front skid for my XJ. I've been keeping an eye out for one at junkyards for months now with no luck. Hit up a new yard Friday and found three of them... they didn't have a preset category at the cashier, so I got out at $25 for a "splash guard". The guy checking my receipt at the exit got all questiony which pissed me off - the price seemed about right to me. Must have been a slow day.
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Dec 7, 2014 06:30
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Nah, coming up a dark section of freeway when I saw cops putting down flares up ahead further... I was preparing to move over a lane when I hit something big and the car started making a shitload of noise. Further up the freeway was a prerunnered out Ranger missing a wheel. Putting two and two together I assume I got part of his suspension.
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Dec 7, 2014 06:44
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 The dashboard for a Maserati Boomerang
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Dec 7, 2014 10:21
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Slavvy posted:Close the thread, that guy won.   
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Dec 7, 2014 10:34
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You Am I posted:
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Dec 7, 2014 12:03
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Boat post incoming! I thought about what to post next and I think I'll start by going over some of the machinery we have onboard, that way I can later post various overhauls without having to explain what everything is. So, where to start. One of my jobs when I was a cadet was to find out how the lights in my room stay on. The 1st actually said that to me in so many words. I asked him what he meant, and he said 'well, all the power on the ship comes from fuel, so go from there.' So, I went and traced out the fuel system up to the engine. From the engine to the generator, and from there to the switchboard room. And from there, to the local distribution station. He didn't make me find which individual wire ran to my room, thankfully. So I think we'll follow that same route. I'll make a very rough diagram of the fuel flow, then discuss the electrical side of things, as well as getting into the various supporting machinery. So, to begin, fuel is loaded onto the ship (we call it bunkering, which I guess is a holdover from the coal days) into the various double bottom tanks. http://en.wikipedia.org/wiki/Double_bottom You might say it seems dangerous to have fuel sitting directly above the sea, with just one layer of steel to stop it flooding out, and I guess there is some truth to that given that the MARPOL (marine pollution) regulations now forbid it on newbuilds. But my answer to that is always going to be 'well don't loving crash then.' The double bottom tanks are equipped with heating coils, and I'll take a moment here to talk about the fuel we use. Some ships (not many) use distillate fuels (diesel oil.) That's what we call the dream life. What we burn is residuals - heavy fuel oil. This poo poo.  That photo's not doctored in any way - it's all but solid at room temperature. Viscous as all gently caress, sticky as hell (it took me an hour to get it off my knuckles), toxic as gently caress, and just goddamned unpleasant to work with in just about every way imaginable. But it's cheap, it burns, and it will get you from A to B - with a lot of treatment. Which gets us back to the heating coils inside the tanks. You can't pump this poo poo at room temperature. Well, you CAN, but you have a very unhappy sounding transfer pump. So for that reason, it gets heated - normally to 30-40 C. You then have a very thick but flowable mass. The first stage of treatment is to pump it to a settling tank. Even though it's 'heavy' fuel oil, it is still lighter than water, so you have a tank with an angled bottom to allow all the water to collect and be drained off.  Pictured: Not fuel. So once or twice a watch I kick the drain valve until all the water is gone. Generally your fuel will want to sit in the settling tank for around 24 hours. From there, the fuel oil is fed to purifiers. These are centrifuges, which do effectively the same job as gravity in the settling tank, but much, much faster. I can't remember offhand how fast they spin but I want to say around 10k rpm. Here's a diagram.  The brown going in is the mixture, the yellow going out is the nice clean (hopefully) fuel, and the brown heading down the side drains to the sludge tank. The centrifuges do a good job, and they are set to alarm if the water content is too high in case there's an unexpectedly large amount of water in the feed, so that you can drain off the settling tank if need be. The centrifuges are also equipped with a preheating coil, and generally we try to maintain the temperature around say 95 degrees. The cleaned fuel is then sent to the day service tank, which contains enough fuel for one day's sailing without the purifiers running. Because of the nature of the fuel, and because it requires heating, it is then sent to a fuel module for regulation. Here's a diagram I found explaining the fuel layout from service tank to engine - varies from ship to ship, but it covers the basics.  So, ignoring the 3 way valve from the DO tank, you have a pair of suction strainers and two feed pumps (they refer to them as supply pumps). You'll find most things on ships are twinned, that way you have a running pump and a standby. Passes from there to another set of filters, then to a flowmeter, and into a buffer tank - that gives you a little time should the running pump fail. The pressure after the feed pumps will vary dependent on ship, but I'm used to seeing 5-6 bar. From there, it runs to the circulation pumps which will boost the pressure - I'm used to seeing 12-13 bar - before being fed to heaters. After the heaters I would expect to see the fuel around 120-125 degrees Celsius. At this temperature the viscosity will have dropped enough for the fuel to be very very fluid - viscosity of around 15 centistokes. This is incredibly important! So to that degree you will see a device there called a viscotherm, which you will notice is connected in red to the heaters. The viscotherm monitors the viscosity of the fuel - which is a function of temperature - and regulates the amount of heating based on that. After that, another set of filters, before entering the fuel rail to be supplied to the engine fuel pumps. As I posted in my overhaul photos, each engine has its own fuel pump, boosting pressure to hundreds of bars for proper atomisation. The return rail runs back to the buffer tank, as shown. So the basic flow is DB tanks -> transfer pump -> settling tank -> purifier -> service tank -> fuel module -> engine. A little bit more in depth than a car, for sure. As I'm sure you can imagine, with all that heating and hot fuel, the purifier room is one of the hottest places in the entire ship. I took a photo when we were in Brasil because I knew no one would believe me otherwise.  That about covers the fuel system. I'll go into detail about some of the other machinery we have on board in another post.
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Dec 7, 2014 12:12
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InitialDave posted:Suddenly, Citroen realised which company one of their missing engineers had defected to. Actually, back then Citroën owned Maserati. Hence the Maserati V6 in the Citroën SM.
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Dec 7, 2014 12:21
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Two Finger posted:That about covers the fuel system. I'll go into detail about some of the other machinery we have on board in another post. So cool! More! 
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Dec 7, 2014 13:57
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Post lots of process diagrams.
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Dec 7, 2014 15:36
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That thing you just did? Keep doing it.
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Dec 7, 2014 17:00
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I'm at a motorcycle Trackday in Arizona today. Ford is using the skid area and has four or five semi trucks full of 1/2ton pickup trucks of all the major brands.
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Dec 7, 2014 17:14
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Panty Saluter posted:It just occurred to me that he made a 911 understeer. If that's not some form of driving talent, I don't know what is. With factory wheel widths and factory tire pressures every 2 wheel 911 I've been able to push (definitely several generations of air cooled ones, a few older watercoolers) understeers as one would expect. On most RWD platforms you'll be able to feel this understeer and know it's still okay and use it to throttle steer around corners, etc. When you get to the point of losing grip in the back it communicates that. In 911s there is just understeer with no communication about it getting to the edge of pushing it too hard and then it oversteers. And with how I drive, it's often snap oversteer because I was pushing it too hard thinking "Oh! I got plenty left to push here!" Add to that, snap oversteer in a car with all that weight in the back is a WHOLE different thing than snap oversteering something with an empty trunk. And, of course....the guys who REALLY know how to drive 911s don't have this issue, because they've somehow mind melded with the chassis and can tell when they're running out of push. The 4 wheel models are MUCH easier to drive hard, but they feel really heavy so it ruins some of the fun. And of course the new ones with all the nannies on them (providing you don't turn them off) will prevent this as well. All that being said, I still love those cars. I just don't and may never have enough seat time to really drive one anywhere close to it's true potential. Watching that happen around you on the track is a thing of beauty that brings on a deep seated jealousy in me. And while I'm on odd 911 driving dynamics, there is just one other major one that trips me up. The car will punish you mercilessly for lifting. If you're not going too fast or it's not too hard of a lift you feel the entire chassis unsettle as the weight gets all hosed up. You get this sick feeling in the pit of your stomach, put your foot down and everything sorts itself back out immediately. If you're doing 100+-ish and lift hard, you swap ends. Before you even know what the hell just happened. This is punishment for being a bad driver and doing the wrong thing, but it's kinda severe.
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Dec 7, 2014 17:38
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Saw this while driving through a small town in the middle of nowhere central Ohio. The sign in the window says it's a 1949 Buick Custom Bomber Car. More pics:   
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Dec 7, 2014 18:40
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Motronic posted:And, of course....the guys who REALLY know how to drive 911s don't have this issue, because they've somehow mind melded with the chassis and can tell when they're running out of push. https://www.youtube.com/watch?v=D7HEiPWnyb4 This video will forever be "the man with the biggest balls... in the WORLD" to me.
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Dec 7, 2014 19:00
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Oh YES. THe Ruf Yellow Bird video. Drifting the S-bends at 1:50 is just epic.
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Dec 7, 2014 19:26
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atomicthumbs posted:Engine's the wrong way around. First thing I did was laugh about the bypassed DI. I wonder how the hell they're timing that without, uh.. issues. I can't quite tell the build, but it looks like a B234R. Even loving with T5 and sending it bullshit, I really don't quite get how you'd manage to do this without metal shooting out the exhaust. v v
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Dec 7, 2014 20:20
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Dec 8, 2014 03:05
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That thing is going to go through the eighth dimension, isn't it?
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Dec 8, 2014 04:00
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Nidhg00670000 posted:https://www.youtube.com/watch?v=D7HEiPWnyb4 I love the sawing of the steering wheel back and forth throughout the entire video. That car is doing its level best to kill its driver.
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Dec 8, 2014 05:18
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boxen posted:I love the sawing of the steering wheel back and forth throughout the entire video. That car is doing its level best to kill its driver. I was going to say the same thing. That is the best example I've ever seen of a vehicle that is actively trying to murder its occupants. I fuckin' love that video.
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Dec 8, 2014 06:39
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