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Turbodiesels and Diesels: Economy that existed before the Prius was even a thought. So to start: Whats the difference? TDI: Turbocharged Direct-injection Intercooled The most common American version is the Volkswagen 1.9l/2.0l that comes in the Passat, Golf, and Jetta bodies. The TDI was first available around 1997, although the earlier ECODiesel models were Turbocharged but not Intercooled and the turbos primary purpose was to offset fuel use. Opensourcepirate posted:Edit: You've got the years a little messed up. 1997 to early 99 was the 1Z or AHU engine. 99.5-03 was the ALH. 04-06 was the PD engine. Nothing for 2007 and then the Common Rail 2.0 Liter came out in 08. Thanks Opensource! Originally the TDIs were still using the Bosch Injection Pump to provide timed injections just like the old 1.6/1.5l Non-Turbo Volkswagen motors, with direct injection instead of indirect injection (also known as IDI) TDIs after 2001 were replaced with the CRD (Common Rail Diesel) system where the injectors were triggered electronically and pressure was provided by a high pressure pump driven by the camshaft. The 1Z/AHU block TDI motors from 1997-2001 generated 90 HP stock, the CRD TDIs generated 160HP Stock, simple injector changes and turbo swaps could put you up into the low 200 HP range easily, and with simple chipping you could easily reach 190 HP.  I wish my engine bay was this clean and oil free. You of course also have many many other non Volkswagen diesel in the US: Cummins 5.9 Turbodiesel Ford 6.9 IDI, 7.3 Turbodiesel, some rare 4 cylinder diesels from the 80s that were put into Escorts Chevy LUV Diesel, Chevy Duramax Audi (VW) TDIs, some rare Audi 1.6l Diesel in 4000 series Mercedes Benz 2.4 Litre Diesel and Turbodiesel, and the famed 3.0l Diesel and Turbodiesel VW Toureg V6 and V10 TDI motors, VW Diesel, ECODiesel, and TDI motors for Jetta/Passat/Golf/Rabbit The ill-fated Cadillac Diesels Share your cars, your engines, or diesel tidbits. Locomotive and ship borne diesels are welcome  Soon to be found under the hood of someones Dodge 3500  VW 1.6l NA in an Audi conversion CommieGIR fucked around with this message at 17:32 on Dec 6, 2012 |
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Dec 6, 2012 03:57
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BlackMK4 posted:
Is that the 335D? Every now and then I see one or two of them. I'm seeing more and more VW TDIs on the road these days, seems like they are finally starting to catch. Billy Tully posted:Good thread, I'm a diesel nerd and I just recently got an AHU to put in my Scirocco. I used to have a 99 Beetle TDI that I had done some stuff to like PP520s, VNT17 and a Rocketchip 3 among other things and I loved it. I drove it with my foot to the floor most of the time and still got 39 and could get 53 on the highway when I wanted to. I really would love to do the ALH pump and do a VNT-15 conversion on my 98 TDI, my head just got finished today and I'm preparing to go pick it up. They had to weld up a valve guide boss and put an oversized valve guide on my intake valve for the #2 cylinder. French Canadian posted:My 2003 Sprinter gets around 21-22 mpg (and it's the long/tall version) which literally blows the mind of everyone I ever tell that fact to. I think they ask with the intention of hearing a much lower number... Yeah, CRDs are awesome, but the cost of parts is night and day between older diesels. Its dirt cheap to do parts for a VW AHU, but the Common Rail injectors and parts are up there. DrPain posted:Avoid the Ford (International) 6.0 power stroke like the plague. Isn't that the one that liked leaking diesel into the oil via bad injector seals? CommieGIR fucked around with this message at 17:40 on Dec 6, 2012 |
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Dec 6, 2012 17:33
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Dec 6, 2012 18:58
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DrPain posted:It's the one with a lovely EGR cooler and oil cooler design that likes to grenade every 50k or so miles, which leads to a whole host of other problems. Ford treated the problem by replacing it with new OEM, basically punting the problem another 50k down the road. Aftermarket kits exist to fix the design flaws, but they're prohibitively expensive and require major engine surgery to install. There were a bunch of lawsuits that came out of the whole fiasco. I think that is why Dodge really took the right step in just using Cummins in their trucks, saved a big headache from another in house developed engine. But it seems Duramax has also managed to get over the teething issues the GM 6.2 and 6.5 motors had as well.
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Dec 6, 2012 19:50
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The head for my AHU, fresh from the machine shop. 
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Dec 6, 2012 21:22
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Billy Tully posted:Nice! Did you get any porting done? No, mostly just valve seats and guides. The #2 valve guide was GONE, it slid RIGHT out when I took off the retainers. But this head has 280k on it 
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Dec 6, 2012 22:09
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Tekne posted:http://www.allpar.com/mopar/V6/VM-RA-diesel.html This engine will be joining the party soon in the Ram 1500 and the 2014 Grand Cherokee. A Wrangler equipped with it and the six speed manual would be a fun little ride. Assuming that its introduction is successful, how likely would it would be for the mill to be offered in their other less utilitarian large cars? Supposedly Chevrolet is preparing to bring a turbodiesel sedan to the US in the next year or two.
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Dec 6, 2012 23:17
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Billy Tully posted:Great, mine has 287k on it so I cant wait to see what it looks like inside How is your oil usage?
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Dec 6, 2012 23:37
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It ran like a top but smoked like a train. Thats the first time I've even heard of a valve guide sliding out.
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Billy Tully posted:I bought it as a parts car and pulled the engine and stuff out pretty much right away so I'm not sure. Might as well get the head rebuilt, its pretty cheap especially if you buy the new parts yourself before going to the machine shop. Mine, with new valves, guides, seals, lifters, etc. only cost me $300. Go ahead and take a look at your connecting rod bearings as well, chances are they are fine, but can't hurt.
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Dec 6, 2012 23:41
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Billy Tully posted:Sucks you've had so much trouble with it cause thats an awesome looking car and we dont get the 170hp over here. We have to steal your Euro parts and make them. I've bought more than a few Euro spec OEM parts, makes the TDI much more fun.
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Dec 7, 2012 00:03
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Dradien posted:I have a weird question. On most gasoline vehicles, I have to think twice or so over anything over ~150K, and normally it's due to my worrying about the transmissions. Most diesel transmissions are built to handle the heavier torque that the engine will put out, but if its a manual, most manual transmissions gas or diesel will last as long as they are shifted properly and oil is kept in them at the proper level. If you are going diesel go manual or some sort of manual transmission
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Dec 7, 2012 00:40
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BurgerQuest posted:Does any one have/have experience with the VW Golf GTD? I've got a MkV GTI at the moment and love it, but I'm starting to get ready to upgrade to something a bit newer, have been thinking the GTD might be a nice move sideways into diesel. I don't have experience with the Golf GTD, but its the same 2.0l TDI engine from the Jetta, and if they put the 6 speed manual in the Golf as well as they did the Jetta, it'll be well worth it. As far as I can tell, they are also giving the Golf a 10 HP boost (170HP), so it'll be even more sporty.
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Dec 7, 2012 16:02
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dash_aremsc posted:Very long time lurker at SA, and being in the market to get myself a TDI this coming summer, figured I would take the plunge and post in this thread, with some requests for advice! Someone was wrong: Mileage wise the Manual transmission is where its at, not to mention the tendency for VW to have issues with their automatics. Its just worth it both for the mileage and the extra power you get. And that nice 6 speed manual if you can find one. Towing wise, you can easily tow a couple motorcycles or even a small boat or camper with ease, that extra torque and the wonderful towing mileage help. I've towed my Audi with my Jetta TDI, and that thing only had 90 HP when I started with it. As for photos and trip report, we'd love it! Pictures: My freshly finished AHU TDI! Freshly machined head installed!  ...and then the coolant return nozzle fractured and snapped off. Not wanting to spend $40 on a new one, I drilled the nozzle and the junction, inserted a piece of plastic tubing, put it back together and epoxied the whole thing. Ta-Da!  Forgive the poor cell phone pictures, my wife took her Canon SLR to her mothers for the weekend. CommieGIR fucked around with this message at 00:40 on Dec 8, 2012 |
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Dec 8, 2012 00:27
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Opensourcepirate posted:If you upgrade more than the tuning chip you'll probably need to do the clutch too. I did a moderate injector upgrade and the clutch started slipping. Easy solution is throw in a VR6 clutch
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Dec 8, 2012 02:15
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Opensourcepirate posted:There's a couple of factors. One is that winter Diesel fuel has a lot of additives to keep it from gelling up and generally gives you worse power and fuel economy than summer Diesel. Did they remove the coolant glow plugs on later model TDIs? That was the whole point was to keep the engine at optimal temperature...
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Dec 11, 2012 15:57
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Shifty Pony posted:For a '10 jetta Tdi running mostly shorter trips and B5 fuel is a 5k mile oil change interval a good idea? That would work out to be about every six months. I have heard that the biodiesel will tend to cause more oil contamination. If you are running full synthetic 5k to 6k is a good change interval, especially running bio. I have had multiple come up and warn me I was filling with diesel. I had a trucker run up to me at the truck pump and try to stop me, thinking my Jetta was gas. And then I've had one or two Prius owners chide me for driving a diesel
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Dec 11, 2012 19:26
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InterceptorV8 posted:I think the best was when I had some wannabe hippies screaming about no blood for oil when I was filling up my F250 with B99 Biodiesel. I guess the huge banners everywhere with BIODIESEL in three foot tall letters where too hard to read. You can run bio in winter but you have to mix it with diesel, gas or kerosene.
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Dec 11, 2012 20:59
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InterceptorV8 posted:I guess Bio made from animal gels differently than bio from plants. You also have to remember this happened 6 or more years ago. Bio-diesel is well regulated as far as its content, but its just the nature of the beast that it will gel higher than normal Winterized Diesel. I don't even know if they make a winterized version of bio for the pumps. CommieGIR fucked around with this message at 23:00 on Dec 11, 2012 |
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Dec 11, 2012 22:56
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veedubfreak posted:Did you explain to the hippies how their Prius does more damage to the environment than a gas guzzling SUV before it even reaches the US shores? If you've watched the Smug episodes of South Park, then you are fully aware why they buy Prius.
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Dec 12, 2012 00:48
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veedubfreak posted:Diesels have had a bad rep in the US for a few decades due to the fact that the only real vehicles you were able to buy were lovely GMs and big trucks which love to belch black smoke. The Germans didn't really make a push to get diesels into the country until the late 90s. But the stigma still exists. The bad rep is due to that and the Cadillac diesel, which resulted in a huge class action lawsuit and because Cadillac sucks at diesels. Volkswagen and Mercedes have had diesels in the US since around 1979, and they never really left, but they were never sold in good numbers till recently thanks to the fact that people now want economical cars that can still be fun.
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Dec 12, 2012 17:26
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Opensourcepirate posted:The price difference between diesel and gasoline depends highly on the time of year. Diesel fuel meets the requirements for home heating oil, and the reverse is sometimes true - the standards are looser on heating oil - so the price of Diesel goes up in the winter as heating oil comes into demand. Either way, the calculated cost difference is more than worth the efficiency and fuel mileage. I mean, the Gas Direct Injection engines are starting to catch up, but they still have a little ways to go, even then all some company would have to do is make a Diesel Hybrid and diesel would still hold have the best efficiency.
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Dec 12, 2012 17:47
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InitialDave posted:Anyone able to help me out? Ive been looking dave, I might have to measure my own engine but for the life of me I cant find it
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Dec 12, 2012 21:22
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Wolfsbane posted:Diesels aren't very efficient when you stop and start them a lot, which tends to be the way a hybrid engine runs. Yes, but you could do a diesel electric combo
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Dec 12, 2012 21:31
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Wolfsbane posted:Diesels aren't very efficient when you stop and start them a lot, which tends to be the way a hybrid engine runs. Yes, but you could do a diesel electric combo and still exceed the Prius
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Dec 12, 2012 21:37
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ultimateforce posted:SERIOUS QUESTION: The engine? Depends on the year. Around late 80's (86 I think) they changed the makeup of the head and it caused cracking issues, otherwise the Inline 5 Diesel is still considered one of the worlds most long lived engines Its the vacuum system that will make you want to hang yourself. Still worth it. Billy Tully posted:What are you scheming where you need this information? Please tell me a RWD something with a TDI. I really REALLY want to put a 2.0l TDI engine in my Quattro 4000. the chic in psychic posted:About this lovely: http://www.youtube.com/watch?v=HW3C1AYQLnI http://www.youtube.com/watch?feature=endscreen&v=QLB2bxYfJEg&NR=1 CommieGIR fucked around with this message at 22:14 on Dec 12, 2012 |
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Dec 12, 2012 22:09
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Shifty Pony posted:That used to be true but really is not the case for modern common rail diesels. Volkswagen already has models under the Bluemotion badging that includes automatic engine cutoff at stop with TDI engines. I really want to see a diesel electric car. Diesel engine, driving generator, one motor per wheel a'la eTron Quattro, and watch it fly.
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Dec 12, 2012 22:17
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ultimateforce posted:So they are great is what you are saying. Yes. But you need a wagon. It is the law.
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Dec 12, 2012 22:22
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ultimateforce posted:I wish, I can only find sedans. Apparently they are all over Orlando for some reason. Same here, the W123 body is rather rare now days it seems, you can find a bunch of them in Colorado, but its hardly worth the trip from Florida to get one. I was actually surprised by how may 300D/300TD/300SD's there are in Georgia. EDIT: Found this in Atlanta http://atlanta.craigslist.org/atl/cto/3473832861.html http://atlanta.craigslist.org/nat/cto/3428668456.html CommieGIR fucked around with this message at 22:35 on Dec 12, 2012 |
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Dec 12, 2012 22:27
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veedubfreak posted:In response to why hybrid diesels aren't a thing. The loving chicken tax. Take that bullshit off the books, get rid of the ridiculous restrictions the EPA put on diesels in the past 10 years and you'll have a hybrid getting 100+ mpg. I blame CARB II, EPA practically copied CARB II which is very harsh on diesel emissions, as they test it for the same emissions as a gas motor.
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Dec 12, 2012 23:22
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NitroSpazzz posted:I'm glad I'm not the only person who's dreamed about building a little tube frame mid/rear engined car with a TDI power plant. I went as far as building the drat thing in solidworks at one point, need to see if I can find that. http://www.mrsharkey.com/pusher.htm Little Diesel EV pusher some guy I know made.
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Dec 13, 2012 16:34
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French Canadian posted:I'm way into vans with diesels. The big Ford Transit that's coming here with an Ecoboost to begin with will show up with a diesel in 2014. I told my wife if we were ever going to get a van, it would be diesel.  The only gas cars we have are my project rally cars.
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Dec 13, 2012 22:26
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General_Failure posted:This thread is making me think I should have spent the $200 on the diesel Golf. Oh well. Yes. Yes there is. But if you live in the US like me you'll never see one anytime soon except in Jeeps
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Dec 13, 2012 23:16
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General_Failure posted:Nope. live in Australia. I'm just contemplating a horrible bastard child and was curious if the motor is available. Ah, then chances are you got it. The Jeep Grand Cherokees have a Fiat diesel engine, do they sell the Fiat 500 there?
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Dec 14, 2012 00:14
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General_Failure posted:The new one? No idea. Haven't seen one but then 90% of people here either drive a 4x4 or a ute. Most of the Fiat diesels are in new trucks or 4x4s, so you might not see many for some time
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Dec 14, 2012 00:24
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BrokenKnucklez posted:Like diesel electric locomotives have been doing for the past oh... 60 some years. That was exactly my point. You could easily balance out the load through excess charging, or even regenerative braking. Either way, I think it could be a competitive vehicle, and maybe even a little simpler than the Prius or other EV/Hybrids
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Dec 14, 2012 05:01
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chrisgt posted:That's the point of a CVT, is it not? Who said you have to have a transmission? You could easy use gearsets and individual motors at the wheel. And the diesel engine doesn't have to be as big if its just acting as a generator.
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Dec 14, 2012 18:24
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NitroSpazzz posted:Here's your generator - http://us.yanmar.com/products/industrial-engines/air-cooled/epa-certified/ I'd go with the little 3 cylinder turbodiesel Yanmar.
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Dec 14, 2012 19:49
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jammyozzy posted:You joke, I've been torn for a long time if a diesel Miata would be the best or worst thing ever. I'm leaning towards best on account of how fun the groundswell of torque can be in a regular car. With as small as the Miata is, I image it would be great fun, especially with one of the PD 160HP engine in it, and a simple chipping could easily push it up to 180HP or more.
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Dec 14, 2012 20:53
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pazrs posted:Have you seen 'Is that thing diesel'? Paul Carter rides around Australia on a biodiesel fuelled Yanmar powered bike. It's worth a watch. I'd love a diesel motorcycle.
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Dec 15, 2012 23:59
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BrokenKnucklez posted:For any one who cares... Hatz makes a small diesel engine. Its powerful as gently caress but is easy on fuel. I wish someone wold make a car with a Deutz air cooled diesel. 
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Dec 18, 2012 17:50
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