@@playgt326 It ran on synthetic diesel, made using gas to liquid. Could easily be fed from vegetable oil stock, but wasn't due to the relatively low volumes needed for their race program....
Diesel has really evolved over the years. Since the introduction of Turbos, its incredible what you can get out of these engines. Can't wait to see the Subaru Diesel. Bet you will see it in the WRC.
This should be a t.v. commercial representing the TDI as we know of. But we don't hear much of Le Mans in my country, only F1. Greetings from Ireland. :)
The Honda S2000 is my fav car becuase of all the power it produces in a 2.0L engine, The Audi TDi Engine has made me on my favorite list just by listening to the engine purr and how it uses diesel fuel and dominates. Go Audi.
Robert Huber made a prototype in the 60s, and hino used a denso common rail system in 1995... its called the edu-u2 common rail, or something similar to that boshe made the first computerized common rail, but basically just added the ecm and i/o's to the denso system
Entropy should have never entered the discussion. Neither should have "273K" or half of that other stuff. So Duck, you really understand entropy hey? I am glad you are on the job judging the quality of other people's comments.
You would get cooling problems and preignition due to the extremely high airpressure. Unless they invent an intercooler which cools way below sub-273K temperatures, but that would result in either engine knocking or no burning process at all. Theoretically, you a diesel engine can easily be tuned much higher thermodynamically then petrol engines. But our technology isn't advanced enough to build an engine that could handle the forces.
@nemanume There are certainly indirection diesel engines, which work with a pre-combustion chamber (search on internet). and TDI stands for Turbocharged Direct Injection
When VW introduced their TDI engines TDI stood for Turbo Diesel Intercooler, cause they still used swirl-chamers, there for no direct injection. Modern cars uses electronic direct injection and TDi stands for Turbo diesel with Direct Injection. Mercedes 2.5 L OM602.962 Turbo Diesel used mechanic direct injection, but was not an true TDI engine, even though it was a turbo direct injected engine CRDI stands for Comonrail Direct Injection, Ford used Volkswagen 1.9 CRDi engines for example in Galaxy
That's also due to the high amount of paraffines in diesel fuel. I heard that they often use winter Shell V-power diesel because the lower amount of paraffines have a lower burntime.
@letmesnitch I thought that TDI was Turbo Diesel Injection but, in Wikipedia I read the meaning of TDI and it's Turbo Direct Injection, refering to da Direct Fuel Injection System used in VW Diesel Engines. Da homologue in Gasoline is da TSI engine
Exactly. The problem of the diesel engine is that it needs more air to increase the rotation frequency. Sequential turbocharging and variable geometry turbocharging can the engine more breath. Both Audi and BMW are experimenting with both technologies.
Yes, you're right. I was mixing things up. Anyway the second law describes the increase of entropy which isn't important in a flowing system. And since high temperature heat can only dissipate towards low temperature heat I can't imagine a 273K intercooler not to work? It might slow down burn time though.
My bad experience with the Audi was long ago in the 1970s. The A/C never worked and the valve guides wore out within a few thousand miles. I had them replaced once and they soon leaked oil again. There were other problems too that no one could seem to repair. But that was 30 years ago, and I am sure that Audi is making more reliable cars now because I see a lot of them on the road. If the later model Audis were as unreliable as mine was the manufacturer wouldn't be in business now.
you are correct, pre-ignition is only a concern is petrol engines, because all diesels are direct injection..... by definition. All diesel engines compress the air, which creates the heat, which ignites the fuel that is injected when a petrol engine would be firing a spark plug. Diesel engines are fuel throttled, unlike petrol engines that are air throttled. hence the reason my 6.2L diesel has no carburator or throttle body.
Maybe It stands for Turbo Direct Injection for VW/Audi products, but for all other manufacturers it stands for Turbo Diesel Intercooled. Mazda B2500 TDI in South Africa is NOT direct injected. Isuzu 280 DT was direct injected but no intercooler. Isuzu 300 TDI was direct injection WITH an intercooler. Ford Escort TDI was NOT direct Injection, but had an intercooler.
Yeah, I heard about 2 stage injection. Seems it's actually invented a long time ago. Isn't it similar to Alfa's TwinSpark to get have a first light preignition and having the second spark ignite the whole mixture?
The Clausius statement which states that heat cannot transfer from a low temperature object to a high temperature object? Anyway, the (sub-)273K intercooler is not an idea. It's simply a quick thought. ;) I still believe in DaimerBenz's DiesOtto and Volkswagen's CCS technology which combine diesel cycle with otto cycle. Do you think this is only possible cause of direct injection and variable compression ratios?
it might be as you say. can't argue as long as i don't have any kind of experience with cars made in US. Anyway more often service and check-up is good for your own safety. You can drive more confidently when you know your car it's as it should be.
You are thinking of -273C. 273K is 0 Celsius. The guy who mentioned 273K is just trying to be fancy and show off. Pre-ignition can occur on any engine that does not have direct injection, Diesel or petrol. Some new petrol engines (Audi and GM and some others) are direct injection so they can run really high compression ratios without worrying about pre-ignition.
@ttaborda I think TDI stand for Turbo DIesel? I don't have anything to back that up, but that's what I've always thought it meant - what do you think it stands for, since this shouldn't be called TDI?
So what do you suggest, that american cars dont need to be maintained? cars do need service no mather the make. FSI and TDI are both direct-injection fuel systems. first is for petrol and last applies to diesel. there is also DSG (Direct Shift Gearbox) but this is some other stuff. regards.
@ttaborda You should also get your bases right! Audi A8 (D2) 3.3 TDI was the first using common rail in the VAG group per say And the EDC common rail was developed by Magneti Marelli for Fiat. As there where not enough cash for continuing development they sold their invention to Bosch group who continued development and then presented it to the world in the Alfa Romeo 156 JTD.
With DiesOtto and CCS/GCS I specifically meant the core ideology Homogeneous Charge Compression Ignition. Except the DaimlerBenz AG concept uses unleaded fuel and Volkswagen Group AG wants sulphur- and arene (aromates) free biomass-to-liquid fuel.
SqtH3nry3, pre-ignition in a direct injection diesel like this TDI is not possible. Only air is compressed in a diesel and then the fuel is injected so pre-ignition can't occur. Since you seem to like thermodynamics, I suggest you become familiar with the Second Law of Thermodynamics. You might learn something about your 273K intercooler.
The second law cosists of Kelvin-Planck and Clausius. Look at the Clausius statement. I suppose an intercooler at 273K would be feasible if you carried around bags of ice. There is no reason for a cooler intake charge to cause slow burn time (desirable in a diesel actually).
I to am a diesel lover, but bare in mind that if a petrol car was turbo charged at the same pressures the power would be a lot more, until it fell apart/ melted itself etc!
On the alfa I thought both spark at same time, 1 will ignite all mixture first. With 2 stage yes, a small amount first to get the combustion going, then the rest can be burnt with the main injection, more fuel can be burnt without smoke, this was the problem with diesels, takes time to burn, by which time piston has travelled down cylinder. U even get mechanical 2 stage injectors, dont know how they work, 2 types of injector valve?
Wow, that's pretty scary. I remember reading that when Mercedes went to an electronic braking system, they had an emergency hydraulic override in case it decided to go "windows".
hello !! firstly i want to thank you very much because of your answer and ur interested . i dont think that there is any doubt that you are right in your advise to me ' my english is still bad and poor and i'm obliged to work hard in order to improve it '' but you should know that here in morocco we are studying mechanic auto by frensh and also it does not mean that i can't be contact with people who are talking by english . i can't do this because i like english .
@letmesnitch Making some sense about your comment, I review in other sources and all of them agrees that da meaning of TDi is "Turbo Direct Injection" U_u
why dont they put this engine in the r8 instead of a freaking lambo engine? the r8 is an awesome car, but when it has a lambo power plant, its just a lambo in an audi body, i would love a turbo diesel race engine in an r8, or an r8 all toghether, but its like putting a chevy engine in a ford chassis, either you just dont, or you have some weird frankenstein
Thats my point, a petrol would die. A diesels max bhp is limited by max revs mainly as bhp= torque x rpm divided by constant, so max bhp means little, look at diesel torque figure, these r high. Engine knock is a result of high temp, it is the sound of sonic booms due to flame fronts exceeding the speed of sound. With petrol u can get fuel puddling aswell if temp to low. Big coolers can cause lag aswell.
minralb the car was new? if so, i can assure you that you were the most unlucky person in this world to find 1 audi that isn't working. i live in Europe and i had more than 1 audi.right now i own an Audi a4 v6 TDI wich is sublime.
Le Mans rule makers have dropped the tank capacity for diesels only ..no rev limits, no other restrictions whatsoever...basically they'll get 2 or 3 laps less advantage over the petrol engined cars this year. The rule makers may have been a little more harsh but for the fact that the French Peugeot \ Citroen company have entered a v12 diesel this year also. The Peugeot seems to be a little louder to me, anyone else heard it yet ??
thats what i mean. the high compression might stop the rotors from turning. unless there were 4 or more rotors so that there was always a power stroke (or whatever the rotary term is) to push through the compression. it would solve the diesel knock (characteristic rattle) and the low torque of rotary engines. hmmmmmmmmm.....
This is one of the best diesel engines i've ever seen.... great sound, great performance, it's a legend, all my respect.
If this runs on renewable diesel HVO, Will be awesome.
@@playgt326 It ran on synthetic diesel, made using gas to liquid. Could easily be fed from vegetable oil stock, but wasn't due to the relatively low volumes needed for their race program....
Best of the best, greatest and most soundfull diesel engine of all times . So sad that those are not in use anymore
Diesel has really evolved over the years. Since the introduction of Turbos, its incredible what you can get out of these engines.
Can't wait to see the Subaru Diesel. Bet you will see it in the WRC.
This didn't age well
11 años y sigue siendo uno de mis videos favoritos y uno de mis primero videos que he visto en esta plataforma
12 cilinders.
There was a Lola-Caterpillar B2K/10 which had a rebadged Volkswagen V10 TDI engine though.
noch vor ca 15 Jahren auf einer Stufe mit Opel, heute vor Mercedes und BMW.
Hut ab !
Can't believe this was posted 16 years ago, yet that car still looks advanced 😳
TDI - Turbo Diesel Injection (VW, Skoda, Audi, Seat)
CRD - Common Rail Diesel (Chrysler, Jeep)
CRDi - Common Rail Diesel Injection (Hyundai, KIA)
dCi - Diesel Common-Rail Injection (Renault, Nissan)
TDCi - Turbo Diesel Common-Rail Injection (Ford)
i-CTDI - Common-Rail Turbo Diesel Injection (Honda)
JTD - multiJet Turbo Diesel (Fiat, Alfa Romeo, Lancia)
What about HDi for Peugeot?
CDTI from Opel?
Tdi is turbo diesel intercooler in '90s you had td engines without intercooler
Turbocharged direct injection*
@@Gerard_Joling63 so technically a Supra/BMW with a B58 is also a TDI because it is turbocharged direct injection
The best commercial I've ever seen!
Great vid! I love the horse on the treadmill :)
omg the soundtrack is plain awesome! I love this car
This is still legendary today 💯
This is why I study mechanics engineering
This should be a t.v. commercial representing the TDI as we know of. But we don't hear much of Le Mans in my country, only F1. Greetings from Ireland. :)
Great sound and awesome performance 👍👍👍
The Honda S2000 is my fav car becuase of all the power it produces in a 2.0L engine, The Audi TDi Engine has made me on my favorite list just by listening to the engine purr and how it uses diesel fuel and dominates. Go Audi.
That's cool that you're in Morocco. One of my friends here at grad school is from there.
Robert Huber made a prototype in the 60s, and hino used a denso common rail system in 1995...
its called the edu-u2 common rail, or something similar to that
boshe made the first computerized common rail, but basically just added the ecm and i/o's to the denso system
Who cares about engine sound.. Performance is what matters.
Entropy should have never entered the discussion. Neither should have "273K" or half of that other stuff. So Duck, you really understand entropy hey? I am glad you are on the job judging the quality of other people's comments.
You would get cooling problems and preignition due to the extremely high airpressure.
Unless they invent an intercooler which cools way below sub-273K temperatures, but that would result in either engine knocking or no burning process at all.
Theoretically, you a diesel engine can easily be tuned much higher thermodynamically then petrol engines.
But our technology isn't advanced enough to build an engine that could handle the forces.
Whatever anyone calls TDI, it still owns!
it even turned teen-aged students with honda's heads cx
@nemanume
There are certainly indirection diesel engines, which work with a pre-combustion chamber (search on internet). and TDI stands for Turbocharged Direct Injection
I wish Vag kept to the PD system!
Its really neat and compact compaired to other diesel tech!
Awesome!!!!!!!
The best automotive video I've ever seen!!!
When VW introduced their TDI engines TDI stood for Turbo Diesel Intercooler, cause they still used swirl-chamers, there for no direct injection. Modern cars uses electronic direct injection and TDi stands for Turbo diesel with Direct Injection.
Mercedes 2.5 L OM602.962 Turbo Diesel used mechanic direct injection, but was not an true TDI engine, even though it was a turbo direct injected engine
CRDI stands for Comonrail Direct Injection, Ford used Volkswagen 1.9 CRDi engines for example in Galaxy
That's the best sounding diesel ever!
TDI power 🥰
Progress is Beautiful...
That's also due to the high amount of paraffines in diesel fuel.
I heard that they often use winter Shell V-power diesel because the lower amount of paraffines have a lower burntime.
@letmesnitch I thought that TDI was Turbo Diesel Injection but, in Wikipedia I read the meaning of TDI and it's Turbo Direct Injection, refering to da Direct Fuel Injection System used in VW Diesel Engines. Da homologue in Gasoline is da TSI engine
Exactly.
The problem of the diesel engine is that it needs more air to increase the rotation frequency.
Sequential turbocharging and variable geometry turbocharging can the engine more breath.
Both Audi and BMW are experimenting with both technologies.
Yes, you're right.
I was mixing things up.
Anyway the second law describes the increase of entropy which isn't important in a flowing system.
And since high temperature heat can only dissipate towards low temperature heat I can't imagine a 273K intercooler not to work?
It might slow down burn time though.
My bad experience with the Audi was long ago in the 1970s. The A/C never worked and the valve guides wore out within a few thousand miles. I had them replaced once and they soon leaked oil again. There were other problems too that no one could seem to repair. But that was 30 years ago, and I am sure that Audi is making more reliable cars now because I see a lot of them on the road. If the later model Audis were as unreliable as mine was the manufacturer wouldn't be in business now.
you are correct, pre-ignition is only a concern is petrol engines, because all diesels are direct injection..... by definition. All diesel engines compress the air, which creates the heat, which ignites the fuel that is injected when a petrol engine would be firing a spark plug. Diesel engines are fuel throttled, unlike petrol engines that are air throttled. hence the reason my 6.2L diesel has no carburator or throttle body.
@Titchify That's interesting. I have heard of a Ford TDI engine but wasn't sure if it was of Vw's/Audi's.
@da7nesman i think its Common-Rail Diesel injection
Maybe It stands for Turbo Direct Injection for VW/Audi products, but for all other manufacturers it stands for Turbo Diesel Intercooled. Mazda B2500 TDI in South Africa is NOT direct injected. Isuzu 280 DT was direct injected but no intercooler. Isuzu 300 TDI was direct injection WITH an intercooler. Ford Escort TDI was NOT direct Injection, but had an intercooler.
Yeah, I heard about 2 stage injection.
Seems it's actually invented a long time ago.
Isn't it similar to Alfa's TwinSpark to get have a first light preignition and having the second spark ignite the whole mixture?
Most of the Italian cars is fun to drive too.
The Clausius statement which states that heat cannot transfer from a low temperature object to a high temperature object?
Anyway, the (sub-)273K intercooler is not an idea. It's simply a quick thought. ;)
I still believe in DaimerBenz's DiesOtto and Volkswagen's CCS technology which combine diesel cycle with otto cycle.
Do you think this is only possible cause of direct injection and variable compression ratios?
it might be as you say. can't argue as long as i don't have any kind of experience with cars made in US. Anyway more often service and check-up is good for your own safety. You can drive more confidently when you know your car it's as it should be.
@VanHulleAutoGroup
Mitsubishi had GDI (first direct injection on pistons gasoline engine) engine before 20 years.
@Mcroostr TSI is the gasiline turbo engine
You are thinking of -273C. 273K is 0 Celsius. The guy who mentioned 273K is just trying to be fancy and show off. Pre-ignition can occur on any engine that does not have direct injection, Diesel or petrol. Some new petrol engines (Audi and GM and some others) are direct injection so they can run really high compression ratios without worrying about pre-ignition.
@ttaborda I think TDI stand for Turbo DIesel? I don't have anything to back that up, but that's what I've always thought it meant - what do you think it stands for, since this shouldn't be called TDI?
@dorkysss tsi is a turbocharged, directly injected gasoline engine
A great engine Volkswagen AG .
Stunning!
@welly1968 actually it stads for Turbocharged Direct Injection
So what do you suggest, that american cars dont need to be maintained? cars do need service no mather the make. FSI and TDI are both direct-injection fuel systems. first is for petrol and last applies to diesel. there is also DSG (Direct Shift Gearbox) but this is some other stuff. regards.
@SBT300
My mistake, it was first modern GDI, but yes Swedish, Germans, Soviets were uzsing same system back in 1925, 1937..
GORGEOUS!
... That's not correct either.
TDI = Turbocharged Direct Injection.
:)
VW (for some random ass reason) decided to only use this for their turbo diesel direct injection engines
TDI stands for Turbo Direct Injection. common rail is a CRD Common Rail Diesel
i thought it was turbo diesel injection...
the more you know
nice post here , very interesting thanx
@ttaborda You should also get your bases right!
Audi A8 (D2) 3.3 TDI was the first using common rail in the VAG group per say
And the EDC common rail was developed by Magneti Marelli for Fiat. As there where not enough cash for continuing development they sold their invention to Bosch group who continued development and then presented it to the world in the Alfa Romeo 156 JTD.
You can't beat German Engineering
on a landrover and some trucks, yes.
but VAG registered as a brand, trade mark.
Impresionante, muy buena presentacion del auto.
With DiesOtto and CCS/GCS I specifically meant the core ideology Homogeneous Charge Compression Ignition.
Except the DaimlerBenz AG concept uses unleaded fuel and Volkswagen Group AG wants sulphur- and arene (aromates) free biomass-to-liquid fuel.
SqtH3nry3, pre-ignition in a direct injection diesel like this TDI is not possible. Only air is compressed in a diesel and then the fuel is injected so pre-ignition can't occur. Since you seem to like thermodynamics, I suggest you become familiar with the Second Law of Thermodynamics. You might learn something about your 273K intercooler.
The second law cosists of Kelvin-Planck and Clausius. Look at the Clausius statement. I suppose an intercooler at 273K would be feasible if you carried around bags of ice. There is no reason for a cooler intake charge to cause slow burn time (desirable in a diesel actually).
I to am a diesel lover, but bare in mind that if a petrol car was turbo charged at the same pressures the power would be a lot more, until it fell apart/ melted itself etc!
Its a Twin Turbocharged Common Rail Direct Diesel Injection with intercooler.
@welly1968 This is not correct because all diesel engine are direct injection. TD engine has no intercooler.TDI=Turbo Diesel Intercooler
On the alfa I thought both spark at same time, 1 will ignite all mixture first.
With 2 stage yes, a small amount first to get the combustion going, then the rest can be burnt with the main injection, more fuel can be burnt without smoke, this was the problem with diesels, takes time to burn, by which time piston has travelled down cylinder.
U even get mechanical 2 stage injectors, dont know how they work, 2 types of injector valve?
@welly1968 you mean Turbo Diesel Intercooler
Nice video, Audi R10 and Peugeot 908 are best
Neat I wish here in america there was more formula one car races because nascar is kind of silly after 4 hours of the ovel track.
If it was Vista, it would take a couple minutes to start up, and when you're idling there would only be about 60% of power available.
@VentoDriver oh sorry, that was a typo: max rev are 5700.....
The video's a little lame, but Audi should still be very proud of their technology.
Always in the forefront.
Wow, that's pretty scary. I remember reading that when Mercedes went to an electronic braking system, they had an emergency hydraulic override in case it decided to go "windows".
hello !! firstly i want to thank you very much because of your answer and ur interested . i dont think that there is any doubt that you are right in your advise to me ' my english is still bad and poor and i'm obliged to work hard in order to improve it '' but you should know that here in morocco we are studying mechanic auto by frensh and also it does not mean that i can't be contact with people who are talking by english . i can't do this because i like english .
it would have to be super high compression
anything is possible but many sanctioning bodies have banned rotary engines from racing
@letmesnitch Making some sense about your comment, I review in other sources and all of them agrees that da meaning of TDi is "Turbo Direct Injection" U_u
@Samcor8871 Yeah, that's right, petrol engines - welcome to half a century ago! Too bad you still have knocking and ignition timing to worry about.
why is this called tdi when it uses common rail injection?
@stubbi nice! not bad for a Diesel! ;)
I hope Engineers of Audi will make a BEST DIESEL POWERED Formula One Engine that can make 1500 HP!
the common rail was made bydenso corp.
whats this song called?
why dont they put this engine in the r8 instead of a freaking lambo engine? the r8 is an awesome car, but when it has a lambo power plant, its just a lambo in an audi body, i would love a turbo diesel race engine in an r8, or an r8 all toghether, but its like putting a chevy engine in a ford chassis, either you just dont, or you have some weird frankenstein
how many revs?
I have had 2 Audis and the only problem I have ever had was the engine temp sensor went out and that was replaced under warranty.
1:50 is cool
awesome!
Thats my point, a petrol would die.
A diesels max bhp is limited by max revs mainly as bhp= torque x rpm divided by constant, so max bhp means little, look at diesel torque figure, these r high.
Engine knock is a result of high temp, it is the sound of sonic booms due to flame fronts exceeding the speed of sound.
With petrol u can get fuel puddling aswell if temp to low. Big coolers can cause lag aswell.
Well, it's really astonishing what happened to Merc. Incredible. It went from the best to worst in 3 years or so.
Yeah , but I don’t really mind merc loosing :)
minralb the car was new? if so, i can assure you that you were the most unlucky person in this world to find 1 audi that isn't working. i live in Europe and i had more than 1 audi.right now i own an Audi a4 v6 TDI wich is sublime.
What about Mercedez CDI
let's just see if mankind is ready for that :D
@welly1968 Turbocharged Direct Injection..professional title ...(but yes that is your right) Turbo Direct Injection
Le Mans rule makers have dropped the tank capacity for diesels only ..no rev limits, no other restrictions whatsoever...basically they'll get 2 or 3 laps less advantage over the petrol engined cars this year. The rule makers may have been a little more harsh but for the fact that the French Peugeot \ Citroen company have entered a v12 diesel this year also. The Peugeot seems to be a little louder to me, anyone else heard it yet ??
yea.....you are right,sorry....now VW uses signification TDI CR and that means common rail...and TDI is basic turbocharged engine
thats what i mean. the high compression might stop the rotors from turning. unless there were 4 or more rotors so that there was always a power stroke (or whatever the rotary term is) to push through the compression.
it would solve the diesel knock (characteristic rattle) and the low torque of rotary engines.
hmmmmmmmmm.....
Audi will have to officialy build a new LMP1 engine for 2011.
yeah but today diesel cars don't put out that smoke anymore. At least I never see ANY smoke behind them.
TDI stands for Turbocharged, Direct Injection.