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bolind posted:I was thinking the same, I want to say they're machined but that would cost :headsplode: Am I missing something bolind posted:I was thinking the same, I want to say they're machined but that would cost :headsplode: Looks to me like they could be stamped. Both faces don't look to extreme to be formed by a hammer. That said I've never designed anything like that.
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Jan 1, 2016 16:19
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I'm no expert and have no professional background in this, and looking closer, it seems they could be stamped/coined, is my (not very valuable) opinion.
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Jan 1, 2016 17:26
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VikingSkull posted:my favorite "gently caress this loving bolt" fix I've seen was guys tack welding various nuts on dirt modifieds my tie rod is currently held on by two tack welded bolts after I couldn't get the loving cotter pin out and was too lazy to drill it out. Also on the subject of nylon nuts, I had to get one off and I thought, ill just use my impact. (snappy 725) Nope, just spun the bolt. Guy in the next bay comes over with his equivalent matco gun and sticks it on the bolt and we hit it from both sides. Smoked like a motherfucker but holy poo poo it still held. Ended up getting the torch and cutting it off which in retrospec i shouldve just done in the first place.
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Jan 2, 2016 16:39
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VikingSkull posted:my favorite "gently caress this loving bolt" fix I've seen was guys tack welding various nuts on dirt modifieds We ended up doing this on the trailing arm bolts on the race car since they kept backing out even with double nuts, lock washer and other poo poo. I just ordered a set of those magic washers to toss in next time we take the trailing arms off to see how they work. Bad feeling going into a turn and having the trailing arm rotate.
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Jan 3, 2016 01:49
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https://youtu.be/1sCUIrsw9DI Short video on Chrysler's contribution to the WW2 war effort. Stay tuned, presumably, for Episodes 2-4 on FIAT, Diamler and Mitsubishi's contributions.
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Jan 3, 2016 08:23
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Crank the volume. You're welcome. https://www.youtube.com/watch?v=hHjf9zhQIRk
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Jan 3, 2016 19:25
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Hello Spaceman posted:Crank the volume. That's the happiest little motor I've ever heard. I would wring the poo poo out of that at every opportunity.
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Jan 3, 2016 19:40
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Hello Spaceman posted:Crank the volume. https://www.youtube.com/watch?v=t3ppTh3TYtA Onboard racing from the related videos is pretty good.
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Jan 3, 2016 20:30
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I went looking for something that sounds like my dads old Datsun 1600, youtube is full of crappy videos of the drat things, but I managed to find this: https://www.youtube.com/watch?v=b271albASSo Sounds pretty close although not as happy as that mini, and I love watching the car get some air.
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Jan 3, 2016 20:41
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stinch posted:https://www.youtube.com/watch?v=t3ppTh3TYtA That pass at 9:55.  It's making me want to dust off GT Legends again.
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Jan 3, 2016 21:46
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stinch posted:https://www.youtube.com/watch?v=t3ppTh3TYtA oh my god that looks like the best time
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Jan 4, 2016 02:25
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stinch posted:https://www.youtube.com/watch?v=t3ppTh3TYtA This is what heaven looks like....
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Jan 4, 2016 02:27
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Savington posted:Meh. Nordlocks have never worked for turbocharged Miata guys, and we seem to have the worst issues with turbo fasteners. The couple of times I've spoken with turbo engineers about our issues have typically involved statements like "yeah, we've seen that on Formula 2 cars" or "I heard about an Indy car that did that once". We tried VWAG copper lockers and couldn't keep those in place either. The only thing that seems to work for sure is Stage 8's stuff, but even then, the studs on our cars will spin out through the goddamn nut. We have to use aerospace-grade high-temp threadlocker to keep the stud in place, AND use an Inconel stud, AND use Stage 8 hardware, and it still should be serviced once a year with fresh locker and inspected for thread damage in the manifold. Fo3 posted:Looks cool, but I don't understand their point. They are saying other fastening solutions relying on friction are bad, that theirs doesn't rely on friction, but IMO it does. A page late but I am a mechanical engineer on a turboprop (read: high vibration) plane and I deal with the results of, on average, higher Grms levels than space flight vehicle tests on electronics. Agreed with Fo3. To Savington, I know it is spendy but when all else fails, do what aerospace/military does. Loctite is great as is either Safe-T-Cable (fast but $$ for tools) or lockwire (slow but cheap).
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Jan 4, 2016 02:34
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https://www.youtube.com/watch?v=-cOLF9k6FAw Jerry 'n O go for a very short spin
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Jan 5, 2016 16:13
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Fo3 posted:Looks cool, but I don't understand their point. They are saying other fastening solutions relying on friction are bad, that theirs doesn't rely on friction, but IMO it does. No it isn't. If you watch the video, Nordloks are designed so that the slope of the ramps is actually higher than the slope of the threads, so if you try to back the bolt out, it increases the tension on the bolt, not mere friction. Preoptopus posted:my tie rod is currently held on by two tack welded bolts after I couldn't get the loving cotter pin out and was too lazy to drill it out. VikingSkull posted:my favorite "gently caress this loving bolt" fix I've seen was guys tack welding various nuts on dirt modifieds Also commonly employed as a last ditch tactic to keep the fifth gear retaining nut on the mainshaft of an NV4500 transmission from backing off. CarForumPoster posted:A page late but I am a mechanical engineer on a turboprop (read: high vibration) plane and I deal with the results of, on average, higher Grms levels than space flight vehicle tests on electronics. Agreed with Fo3. I've seen lockwire and Safe-T-Cable wear through from vibration. Great if applied properly, not so great if they fail - all edges must be deburred, etc etc. Also, Fo3 misunderstood the way Nordloks work. kastein fucked around with this message at 19:16 on Jan 5, 2016 |
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Jan 5, 2016 19:13
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CarForumPoster posted:To Savington, I know it is spendy but when all else fails, do what aerospace/military does. Loctite is great as is either Safe-T-Cable (fast but $$ for tools) or lockwire (slow but cheap). You reminded me of this: https://www.youtube.com/watch?v=hcxHQXYU-Os
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Jan 5, 2016 20:00
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jammyozzy posted:That pass at 9:55. Man, they don't gently caress around with those historic cars, the guy in the Corina rammed him pretty well at 18:50  This is the way old cars should be enjoyed, it's infinitely better than seeing a thousand minis in a museum. And I'm definitely going to get into GT Legends again some time, hopefully it'll work with the Rift one way or another. mobby_6kl fucked around with this message at 20:08 on Jan 5, 2016 |
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Jan 5, 2016 20:06
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kastein posted:Also commonly employed as a last ditch tactic to keep the fifth gear retaining nut on the mainshaft of an NV4500 transmission from backing off. At work we have anti-rotation caps that spline over the nut and shaft, with snap rings retaining the cap, to stop exactly this happening.
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Jan 5, 2016 20:14
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jamal posted:You reminded me of this: Had a friend recently mention that a certain block of jets got grounded due to bolts coming loose inside their engines and causing bad things to happen. Also being a single engine plane it is a big problem requiring removing engines from all the planes. I thought lockwire was supposed to prevent that, which I guess is why they grounded all the jets.
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Jan 5, 2016 23:23
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kastein posted:No it isn't. If you watch the video, Nordloks are designed so that the slope of the ramps is actually higher than the slope of the threads, so if you try to back the bolt out, it increases the tension on the bolt, not mere friction. But there is still a friction element on either side of the Nordloks, to the bottom of the bolt head and the surface of whatever is being bolted.
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Jan 6, 2016 01:48
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D C posted:But there is still a friction element on either side of the Nordloks, to the bottom of the bolt head and the surface of whatever is being bolted. Watch the video again, the two surfaces you describe have sawteeth angled so that loosening the bolt digs them into the bolt/workpiece. That's what transmits the force from the ramps into the fastener to counter its rotation.
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Jan 6, 2016 02:55
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Which makes me wonder how effective a single serrated washer would be in that test. edit: here are some more: https://www.youtube.com/watch?v=mgwmuZuJ02I - skip to 3:40 This one talks about how serrated washers don't give the same clamping force for the same tightening torque, doesn't test them on the machine, and then mentions you need to increase torque by 20% for nord locks. serrated flange nut not really loosening (starts at 3:00) https://www.youtube.com/watch?v=_ne19-3vkJg jamal fucked around with this message at 03:45 on Jan 6, 2016 |
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Jan 6, 2016 03:22
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Short and sweet. https://www.youtube.com/watch?v=uWu8OuHTJ6c Hope the driver is OK.
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Jan 6, 2016 15:48
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^^ ...what was the guy honestly expecting to happen when you hang a jet engine out the arse of a loving mini?!
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Jan 6, 2016 16:44
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https://www.youtube.com/watch?v=13fcdaXhUFU I laughed SO loving hard at "knife guys." ...I am that guy. With the exception of pointing it at people, that's just rude. I'm not beneath pegging it at a tree or into cardboard boxes though. "how hard do you want it? how hot do you want it? where do you want it?" simple HVAC is best HVAC GnarlyCharlie4u fucked around with this message at 18:54 on Jan 6, 2016 |
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Jan 6, 2016 18:33
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Seat Safety Switch posted:Short and sweet. There's a reason all jet powered cars/wheeled objects that use the actual exhaust for power only go in a straight line. Looks like he never got the memo.
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Jan 6, 2016 19:42
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Alighieri posted:There's a reason all jet powered cars/wheeled objects that use the actual exhaust for power only go in a straight line. Looks like he never got the memo. Nah he clearly just forgot to turn on his thrust vectoring. He was ready to do some jet powered drifts.
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Jan 6, 2016 23:40
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Alighieri posted:There's a reason all jet powered cars/wheeled objects that use the actual exhaust for power only go in a straight line. Looks like he never got the memo. How much downforce could you create with the exhaust pointed straight up. Like if you had it wheel driven off the shaft, and used the thrust to push the car into the ground, could you drive upside down? Could jesus make a jet car so fast that even he could not drive it?
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Jan 6, 2016 23:43
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Powershift posted:How much downforce could you create with the exhaust pointed straight up. You'd be better off chopping the jet nozzle, sticking a power turbine in the exhaust, and using that to drive a (or a bunch of) big gently caress-off fan(s) to suck air out from underneath and create downforce that way. Maybe direct the fans up for a little extra thrust that way. Like a Chapparal 2J on steroids. E: Most insane use of a turbine engine in a race car. https://www.youtube.com/watch?v=6EMleegZQLw
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Jan 7, 2016 00:15
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Enourmo posted:You'd be better off chopping the jet nozzle, sticking a power turbine in the exhaust, and using that to drive a (or a bunch of) big gently caress-off fan(s) to suck air out from underneath and create downforce that way. Maybe direct the fans up for a little extra thrust that way. The Howmet did it so gracefully https://www.youtube.com/watch?v=GAgLSy371us
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Jan 7, 2016 04:29
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https://www.youtube.com/watch?v=9qWYJQClIyY 2015 vette Z06 vs 2016 Viper ACR. This video is maddening as a Viper fan due to the fact that in Top Gear's final season (22) they review the new vette and proclaim it to be the best American sports car or some such 
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Jan 7, 2016 15:05
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scuz posted:This video is maddening as a Viper fan due to the fact that in Top Gear's final season (22) they review the new vette and proclaim it to be the best American sports car or some such The Corvette that Top Gear said that about was the regular C7, not the Z06 though. The C7 Z06, by all accounts, seems to have lost its way compared to its predecessor. It's trying to fill both the Z06 and ZR1 niches from the previous generation and doesn't seem to be as good at being either. The Viper ACR on the other hand is a pure track weapon that just happens to be street legal and has no shame about that fact.
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Jan 7, 2016 17:46
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BBC - Madness on Wheels - Rallying's Craziest Years http://www.dailymotion.com/video/xty1w4_bbc-madness-on-wheels-rallying-s-craziest-years_shortfilms An hour of nice Group B footage, interviews and history
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Jan 8, 2016 23:24
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308 gtb rally car with one nasty sounding v8 https://www.youtube.com/watch?v=RdFgvfHuAlk
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Jan 12, 2016 19:03
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Mind status: blown. https://www.youtube.com/watch?v=azPKIjxmmdU
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Jan 13, 2016 20:40
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IOwnCalculus posted:Mind status: blown.
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Jan 13, 2016 20:42
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scuz posted:Beaten  I wish they would've kept wailing on them until they found an actual power loss. I'm sure stock-style manifolds would still see a prettty big drop, because all of them merge 4-1 so quickly. Even with the horribly beaten up pipes, those are still large pipes, and they still stay as four separate tubes for a long time.
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Jan 13, 2016 20:46
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Was the thought that the smaller diameter would affect flow enough to cause it to do what? I am not really sure where they would think lost horsepower would be from here? They are presumably measuring the crank HP on the dyno so the exhaust flow isn't added to that correct? I guess the thought is that gases wouldn't be able to escape down the manifold as quickly and so the cylinder is filled with more dirty air?
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Jan 13, 2016 21:49
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Reduced exhaust flow will usually result in lower horsepower produced at the crank. The engine has to push the exhaust out of the chamber on the exhaust stroke, so reducing the work required to do so results in more crank horsepower. With properly designed / tuned headers, you can also get a 'scavenging' effect at some RPMs, where the movement of one exhaust pulse through the collector lowers the pressure in the primary tube of the next cylinder that is about to dump into the header. A long-held school of thought is that bashing the gently caress out of a header like that, so that what used to be smoothly radiused bends and a circular cross-section throughout is now a mess of jagged dents, would reduce exhaust flow enough to kill a significant bit of horsepower. Granted, these are 1.75" primary-tube headers so even dented there's still a lot of area, but this is also a 560hp 6.6L engine. Like they mention at the end of the video, you most likely would see a significant drop by switching to 1.625" primary-tube headers.
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Jan 13, 2016 22:36
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