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Larrymer posted:Probably because it can't hold any power unless you get the $$$ix speed. Audi gearbox advantages as I understand them: - Pretty common - They are available in pure 2wd out the box - They're reasonably strong, used for things like the bigger TDi engines and so on - They seem to like using the same bellhousing pattern across a lot of stuff. - Some of them are quite stubby and don't hang out a mile off the back of the engine. - Some of them have the output shafts really far forward, so you can have a longer engine without the driveshafts running at a silly angle. Thing is, there really aren't that many gearboxes out there which let you mount an engine longitudinally with only 2wd outputs from it, in the right place to work nicely for mid engine use, and stuff like a used Porsche or new Ricardo etc is a fair chunk of change.
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Jun 28, 2017 21:53
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Wasabi the J posted:Lmao that's a PC water cooling rad on top of the trans. My assumption is that its a cooler that is either also used as a PC cooler, or is a standard size/frame. I really doubt someone is going to use Cooler Master oil coolers. Although, there's nothing to stop you as it likely runs a tiny diaphram pump and oil that is near water consistency at temperature.
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Jun 28, 2017 22:44
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mekilljoydammit posted:
No one doing a V8 uses a 5 speed. They pay up for the six speed.
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Jun 28, 2017 23:28
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InitialDave posted:Mmm, and I don't think you can (easily) do the rear output delete on the six speed. I didn't know that, I just know the 5 speed would be silly behind anything making about ~300hp for me. Maybe it's not as bad in 2wd mode and holds together better?  Factory five's 818 info says this on the site: FactoryFive posted:*You can use a 2004-2007 Subaru STI as a donor car for your 818 build including the engine, but not as a single donor car build. The following parts will need to be sourced from an Impreza/WRX: Sounds like some of them can be used at least? Or the 2007 only, maybe. I'm not a Subaru expert by any means.
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Jun 28, 2017 23:28
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CAT INTERCEPTOR posted:No one doing a V8 uses a 5 speed. They pay up for the six speed. Larrymer posted:I didn't know that, I just know the 5 speed would be silly behind anything making about ~300hp for me. Maybe it's not as bad in 2wd mode and holds together better?
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Jun 28, 2017 23:43
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CAT INTERCEPTOR posted:No one doing a V8 uses a 5 speed. They pay up for the six speed. Sure, but for a mid-engine 2wd dealie, a used Subaru 6-speed is around Porsche transaxle money, and those seem less a pain in the dick to convert to 2wd.
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Jun 29, 2017 00:10
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InitialDave posted:How do they lockout the centre diff? Well basically there the "bolt it on in such a way you can revert" or there's the "Destructively modify". Usually for a viscous diff you can sleeve or spool the diffs to lock the shafts. The six speed is indeed somewhat trickier given the gizmos in it but same idea applies - it's also on the older gearboxes from my understanding you cant really remove the rear output easily. Now given this isnt somethign I've looked too closely into (but have thought about) but I do know that removal of the centre diff is part of the conversion to FWD.
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Jun 29, 2017 01:41
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This truck popped up at an auction here.    
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Jun 29, 2017 08:24
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For those of you who aren't in the Facebook group: https://www.youtube.com/watch?v=pnKH747Gt2Y Friend traded his Harley for this. International frame and cowl, Ford sedan body, and a GMC bed, all powered by a massively hopped up 305. He's already got plans to change the grille and headlights, add some mirrors, redo the interior a bit to his liking, and just generally tweak and customize it to suit his tastes. It sounds utterly amazing in person, and all he needs is a new steering rack which he's getting tomorrow, and it'll be drivable. There's gonna be a proper photo shoot of this thing fairly soon and i'm absolutely excited to get out and snap some good shots of it 
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Jun 29, 2017 08:27
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I still don't know why anyone would do this, but I'm more than pleased with the outcome.
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Jun 29, 2017 10:08
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Powershift posted:This truck popped up at an auction here. Wish I had the garage space. 
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Jun 29, 2017 12:56
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Powershift posted:This truck popped up at an auction here. I did not expect the odometer surprise. And knowing that, how are there no cluster lights on?
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Jun 29, 2017 13:00
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Larrymer posted:I did not expect the odometer surprise. And knowing that, how are there no cluster lights on? They burned out a while ago? 
Slack3r fucked around with this message at 16:19 on Jun 29, 2017 |
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Jun 29, 2017 16:16
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Goodwood is live! https://www.youtube.com/watch?v=NEhEbPoDtHo
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Jun 29, 2017 16:35
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Wasabi the J posted:Lmao that's a PC water cooling rad on top of the trans. If its metal end capped and properly vibration isolated, it'll probably do fine. mobby_6kl posted:I still don't know why anyone would do this, but I'm more than pleased with the outcome. The best part is when guys in lifted picked do it, with an empty bed, and are shocked that lack of weight on the rear wheels results in them getting dragged around. https://www.youtube.com/watch?v=r46BKOCVKGA
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Jun 29, 2017 16:36
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T1g4h posted:For those of you who aren't in the Facebook group: That is a *quite* rowdy 305, there. CommieGIR posted:The best part is when guys in lifted picked do it, with an empty bed, and are shocked that lack of weight on the rear wheels results in them getting dragged around. Also, lack of lockers, lack of understanding of dynamic vs. static coefficient of friction... (at least in the one Sagebrush posted.) edit: pooched the quoting.
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Jun 29, 2017 17:11
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Darchangel posted:That is a *quite* rowdy 305, there. We're still not entirely sure just what the PO did to it, because jesus it is mean. We know it has an aggressive cam, and the carb is a 750 double pumper which is currently leaking and seems to be way too much for the engine, but otherwise? Total mystery. Best guess is the dude who built it might have made it a really high comp stroker because none of us have ever heard a 305 sound quite like that 
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Jun 29, 2017 19:17
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T1g4h posted:We're still not entirely sure just what the PO did to it, because jesus it is mean. We know it has an aggressive cam, and the carb is a 750 double pumper which is currently leaking and seems to be way too much for the engine, but otherwise? Total mystery. Best guess is the dude who built it might have made it a really high comp stroker because none of us have ever heard a 305 sound quite like that It doesn't take too much cam to make a 305 cackle like that. The smaller displacement and (generally) crap heads makes a mild 350 cam act wild.
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Jun 30, 2017 05:13
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wallaka posted:It doesn't take too much cam to make a 305 cackle like that. The smaller displacement and (generally) crap heads makes a mild 350 cam act wild. This thing is definitely not built on the cheap. We did some looking, the heads are (we're fairly certain) $1200 circle track heads. It's got dirt track tires on the back right now, and the dude used to build and race modifieds, so we're not 100% but still pretty positive that the motor is a fairly stout little setup. PO definitely knew what he was doing in regards to building it, everything is real nicely welded and built super solid. Friend got the steering rack installed and got everything tightened up and took it for a quick test drive around the yard tonight, and holy poo poo it's glorious. Still needs a new carb, got some impressive backfires out of the 750 that it has on it right now, but jesus, even without a proper tune it was bitchin 
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Jun 30, 2017 08:14
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Saw a few fun cars a few weekends ago: 
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Jun 30, 2017 14:06
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T1g4h posted:This thing is definitely not built on the cheap. We did some looking, the heads are (we're fairly certain) $1200 circle track heads. It's got dirt track tires on the back right now, and the dude used to build and race modifieds, so we're not 100% but still pretty positive that the motor is a fairly stout little setup. PO definitely knew what he was doing in regards to building it, everything is real nicely welded and built super solid. Friend got the steering rack installed and got everything tightened up and took it for a quick test drive around the yard tonight, and holy poo poo it's glorious. Still needs a new carb, got some impressive backfires out of the 750 that it has on it right now, but jesus, even without a proper tune it was bitchin You'd have probably have to build a 305 beyond normal physics to move 750CFM through it.
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Jun 30, 2017 14:52
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ratbert90 posted:Saw a few fun cars a few weekends ago In total AI mode a really want a 1971 challenger now done in Redline Red like my 2016 one 
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Jun 30, 2017 14:55
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T1g4h posted:This thing is definitely not built on the cheap. We did some looking, the heads are (we're fairly certain) $1200 circle track heads. It's got dirt track tires on the back right now, and the dude used to build and race modifieds, so we're not 100% but still pretty positive that the motor is a fairly stout little setup. PO definitely knew what he was doing in regards to building it, everything is real nicely welded and built super solid. Friend got the steering rack installed and got everything tightened up and took it for a quick test drive around the yard tonight, and holy poo poo it's glorious. Still needs a new carb, got some impressive backfires out of the 750 that it has on it right now, but jesus, even without a proper tune it was bitchin Well, I'm jealous!
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Jun 30, 2017 14:56
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Watching Goodwood, Martini livery is the best livery
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Jun 30, 2017 15:38
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Watching Goodwood too. How the hell do you drive a Lotus 56? (reminder: turbine, direct drive awd, 140 mph at idle, no engine braking) I can't even start to imagine
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Jun 30, 2017 16:31
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hackbunny posted:Watching Goodwood too. How the hell do you drive a Lotus 56? (reminder: turbine, direct drive awd, 140 mph at idle, no engine braking) I can't even start to imagine Very carefully.
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Jun 30, 2017 16:50
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I can't verify what method they used specifically but there are two ways to drive wheels with a jet engine. One is with a gear reduction transmission and a clutch, the other is with a power turbine which I think is likely the way they went. With a power turbine you don't connect the jet engines shaft to the wheels, but rather use the jet engines exhaust gasses to power a turbine that's connected directly to the wheels so the engine speed can operate independently of the wheel speed. There are two ways to modulate the throttle. One way is to control fuel control like a normal engine, introducing more fuel for higher output etc. The second method is to run full throttle all the time and bleed off the excess air to the power turbine like a gigantic wastegate. It allows for quick throttle response but dear lord it chugs fuel. The Howmet TX uses the second method. I imagine the Lotus uses the first.
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Jun 30, 2017 17:25
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um excuse me posted:I can't verify what method they used specifically but there are two ways to drive wheels with a jet engine. One is with a gear reduction transmission and a clutch, the other is with a power turbine which I think is likely the way they went. The Goodwood driver described it as "like a helicopter" so I believe it's the former. What I'm kinda terrified by is that I've read elsewhere that it doesn't even have a clutch! um excuse me posted:With a power turbine you don't connect the jet engines shaft to the wheels, but rather use the jet engines exhaust gasses to power a turbine that's connected directly to the wheels so the engine speed can operate independently of the wheel speed. There are two ways to modulate the throttle. One way is to control fuel control like a normal engine, introducing more fuel for higher output etc. The second method is to run full throttle all the time and bleed off the excess air to the power turbine like a gigantic wastegate. It allows for quick throttle response but dear lord it chugs fuel. I had never heard of this system but it sounds cool
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Jun 30, 2017 18:05
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DJ Commie posted:You'd have probably have to build a 305 beyond normal physics to move 750CFM through it. No doubt. Friend is not keeping the 750, he's already planning on swapping it for an Edelbrock 600. The 750 is way, way too much carb for that little motor and it shows.
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Jun 30, 2017 18:11
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hackbunny posted:Watching Goodwood too. How the hell do you drive a Lotus 56? (reminder: turbine, direct drive awd, 140 mph at idle, no engine braking) I can't even start to imagine Well, first, you modify the cockpit to contain your giant balls...
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Jun 30, 2017 19:17
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Memento posted:Lotus Esprit, one of the later ones. Looks like it's set up for rallycross? cool, thanks! there's only 2 that I'm aware of in my city, both red. not too familiar with brit cars tbh because the only ones ppl care about around here are $5000 jaguars
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Jun 30, 2017 23:12
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T1g4h posted:No doubt. Friend is not keeping the 750, he's already planning on swapping it for an Edelbrock 600. The 750 is way, way too much carb for that little motor and it shows. With a radical cam like that he might find the edelbrock not very ideal. Maybe it will be fine, but since they use that flappy air valve for the secondaries you can't really adjust the rate at which the secondaries come open. Might want to consider a double pumper Holley. Unless the edelbrock is an AVS? I've never played with one of those. My sample size for that is 1, though, so it might be neither here nor there. I had an edel 1405 on a mild 327, and it drove perfect. But when I put the same carb on a cammed 350, it just didn't want to behave. Huge hesitation when I wanted the secondaries to open, because the air valve flap thing was opening too slowly or too quickly (I forget). It would do this even at lower RPM, so I'm pretty sure it had nothing to do with the venturi or throat sizes, and yes I tried changing the jetting all up to try to fix it. Ended up just having to switch it with a carb more suited to a more aggressive cam (and with more adjustability)
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Jun 30, 2017 23:35
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hackbunny posted:Watching Goodwood too. How the hell do you drive a Lotus 56? (reminder: turbine, direct drive awd, 140 mph at idle, no engine braking) I can't even start to imagine Regarding the earlier but similar STP-Paxton Turbocar: quote:The engine drove a Ferguson 4-wheel drive system, which transmitted the power to the wheels. A torque converter eliminated the need for a clutch pedal and gearshift. The engine idled at 54% of full throttle, which meant that the driver didn't even have to press the accelerator pedal to pull away; all he had to do was ease his foot off the brake pedal. A movable panel was mounted behind the cockpit, which acted as an airbrake. The suspension's coil springs were located inside the backbone and the suspension A-frames had airfoil cross-sections. The car weighed 1,750 pounds, a few hundred pounds more than the Indy minimum weight of 1,350 pounds.[4] 3 seconds is a little longer than it would take for electronic throttle signals to be transmitted to, and relayed back from, the goddamn moon on their way from pedal to engine. shame on an IGA fucked around with this message at 00:31 on Jul 1, 2017 |
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Jul 1, 2017 00:26
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shame on an IGA posted:Regarding the earlier but similar STP-Paxton Turbocar: But that's normal for a turbine engine.
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Jul 1, 2017 00:53
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Raluek posted:With a radical cam like that he might find the edelbrock not very ideal. Maybe it will be fine, but since they use that flappy air valve for the secondaries you can't really adjust the rate at which the secondaries come open. Might want to consider a double pumper Holley. Unless the edelbrock is an AVS? I've never played with one of those. It has a double pumper Holley 750 on it right now, and my friend absolutely swears by Edelbrocks, so he's pretty much set on swapping one on there. I'll have to ask him for more details on what exactly he's wanting to swap it for, so far all I know is he wants a 600 Edelbrock. Carbs are loving mystery magic to me so I've got no earthly idea what the proper size would be
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Jul 1, 2017 01:06
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Yeah. Early aircraft turbines had crazy spool-up times, like up to 30 seconds to go from idle to full power, and if you advanced the throttle any faster they'd either flame out or catch fire. It led to some interesting techniques. For instance, when carrier-borne fighters land, they have to be ready to immediately take off again in case they miss the arresting wire or it breaks. Normally landings are done at near-idle power, and in a modern jet a missed wire just means you slam the throttles forward. But there's not enough time to get the engines in an early jet back up to speed before it goes off the end of the carrier into the ocean. So early carrier jets had giant airbrakes and would come in with brakes out, flaps lowered all the way, gear dragging, and the engine still at full takeoff power. 
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Jul 1, 2017 01:06
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Atomic batteries to power! Turbines to speed!   
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Jul 1, 2017 02:24
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T1g4h posted:It has a double pumper Holley 750 on it right now, and my friend absolutely swears by Edelbrocks, so he's pretty much set on swapping one on there. I'll have to ask him for more details on what exactly he's wanting to swap it for, so far all I know is he wants a 600 Edelbrock. Carbs are loving mystery magic to me so I've got no earthly idea what the proper size would be The problem wouldn't be the double pumper-ness of the carb you have, it's that 750cfm is way too big for a 305, so it's not getting a good signal from the smaller amount of air it moves. You'd really have to dicker with it to get it to act right on a small motor like that, something like a 550 or 600 would be about right. But, if he's got lots of tuning experience with edelbrocks, he probably has a good idea how to make one behave on whatever kind of engine (and which one to select). Like I said, I only have experience with the one carb on like 3 motors, so it's a really small sample size compared to someone who has real experience 
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Jul 1, 2017 05:55
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Some stuff I've seen locally recently.   
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Jul 1, 2017 06:36
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TotalLossBrain posted:Some stuff I've seen locally recently. And the award for cutest fire engine ever goes to ... that guy And I mean that in the technical sense. "Firefighting apparatus" is the catch-all term for "vehicles firemen ride in," but "engine" has pumps and a little tank, "truck" is a rolling toolbox, "ladder" should be obvious, "rescue" is a truck with better/more specialized tools. Edit: Speaking of which, I have a few photos of fire apparati:  Ladder 1  Engine 7, taking a break. The buckets they're sitting on are the foam additive, hence the unit nickname. Apparently they ran out and got more brought in. Chillbro Baggins fucked around with this message at 08:46 on Jul 1, 2017 |
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Jul 1, 2017 08:33
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Bad Angus! Bad!