Audi's TDI Engines are amazing for example the 6.0L TDI V12 from the Q7 It makes 500hp and 738 lb/ft of torque , and consumes 9l/100km!! More than 20mpg!
+1975 First On Race Day Capri 3.0 Ghia more amazing is the price tag back then around $ 2 million more amazingly the performance of that engine on the Q7 is comparable to the BMW M5 V10... oh god if I were that filthy rich!
At 0:58 I just love how during the cylinder honing process, the block spins around instead of the honing head which here stays fixed moving up down only lol :) It looks like a plasma coating process by the way...
The engine uses little fuel per mile, that's already greener without any emission software or control systems. This is an awesome engine hands down, I would like one without the "fixed" software. There is a dark downside to owning a diesel. Due to the quality of metals required, the more precise machining, the ultra high pressure injection amongst other things, diesels are expensive to fix. If you are a person who neglects their vehicle regularly, stick with a gas engine. A diesel will treat you right, but it only returns the love you give it. Gas engines care a lot less about your love.
Holy crap. Ya know I just finished rebuilding my 95 Z28 with an LT1 motor. I was like, dang engines have come a long way since the late 70's. Then I see this and thank god I only got ONE timing chain and ONE pair of valves per cylinder to deal with LOL.
I always said that until I bought my first turbo diesel a year ago. I FRICKIN' love it now. The torque is amazing, you accelerate on the motorway and it goes like a stabbed rat.
Oh, a Turbo extracts the exhaust gasses does it? Does anyone on Discovery have any idea about these things, jeez, I know it's only a TV programme but please get it right!
Well, combustion does occur in the cylinder, perhaps you're confusing it with 'ignition', which kinda happens but it's ignition due to the high temperature within the cylinder and not a spark, but there are some corking errors in these programmes.
***** Yeah my mistake, I mean't ignition. However it still stands that diesel does not need a specific air/fuel mix to make power. It requires it to make power cleanly.
If I remember right, Yamaha used it in earlier r1 models but then stopped making them because the intake port walls needed to be so thin, and the power gain is minimal compared to well designed 4-valve design :) It's also cheaper to make and maintain.
The turbocharger does NOT "draw out the exhaust"! It actually IMPEDES the flow of exhaust out of the engine but captures the energy required to drive the impeller which forces air into the engine.. More power is gained by the additional air than is required to power the impeller, so a net gain in power results.
This turbocharger seems like GTB1756VK which has 56 mm on exducer (inducer 41,5mm), but on 3,0TDI are usually installed GTB2260VK which has 44,5/60 (inducer/exducer) ... and these spin really 200k RPM. We use these turbochargers on 1,9TDI and these spins about 250k RPM.
The exhaust side of a turbo DOES produce backpressure which IN ITSELF would reduce an engine's power. However there is a NET GAIN in power from the increased intake air forced into the engine by the impeller on the intake side of the turbocharger. Yes I am fully aware of the mechanical dirve of the compound turbos being used on a few modern heavy trucks. Mechanical drive from compound turbos were also used on some airplanes in WWII
Gear case would need to be constructed on the side of the engine adding a bit of weight to house the idler gears and main gears for the crank and camshafts. Also the size of the gears would require the engine to be a little bit longer than it is currently to properly house the gears in the gear case. Not impossible its just they would have to redesign the engine to make it work with the current size constraints they have with their cars.
Actually the turbo uses the waste heat in the exhaust to compress the air without robbing the engine of power. This is unlike a supercharger which would be gear or belt driven and thus takes power from the crankshaft. Believe me or don't in recent years more commercial trucks have compound turbo charging (not talking about series turbocharging) where a second turbo has the impeller drive a gear on the geartrain to add power to the crankshaft instead of driving a turbine to compress air.
+baxtar1963 Their CEOs make less because auto manufacturing is a low profit business, where the high margins are in spare parts and the cars are sold with profit margins that would kill most businesses. Also, in Europe we drive cars for 10, 20 years because we can't afford to buy new ones, and because of taxes cars here are more expensive than in America. No shit out CEOs make less. We can barely afford to buy their products.
Remember back in the day when people worked hard and didn't complain? ;) I spent enough time working in a unionized factory to know the tendencies of human 'robots'.
1.) Put a turbo in an oven and heat it to 1.300F degrees and watch it spin. 2.) Did you ever see a windmill spinning on a hot day when there was no wind?
In the old days before common rail injection technologies, having more valves was the best way to achieve best fuel dispersion in the zylinder. Now since that is achieved by high pressure injection, regulated by nozzle geometry and ecu chips, having 3 intake valves became obsolete.
You diesel haters are something else again. The Audi turbo diesels win races and use identical suppliers used by Benz and BMW. THE FACTS ARE that the use of genuine German synthetic oils keep them all running to 500k miles. They all use piston, rod, chain and tensioners, and injection from identical suppliers and that there are more diesel powered cars in Europe than gas ones. Diesels do not suck. They outlast gas powered engines even though they have very high compression ratios. BMW BENZ and A
Excuse got turbine and impeller backwards. Might as well also note that what I meant by series turbocharging was to have the air compressed twice by two turbos. The advantage of turbo is of course more power without wasting energy. Superchargers are more responsive as they don't need to spool up to speed and you don't have to worry about overspeed and loss of lubrication to a spinning turbo after heavy engine load and immediate shutdown.
They explained the turbo wrong. The exhast side turbine doesnt draw out exhast instead it is driven by the exhast and compresses air on the intake side.
Putting it that way; yes, stuff will wear faster. Keep in mind though; if your wanting to "race" or drive aggressively, just get a "RS/S" Audi, they build those engines to withstand those extremes! As for the bolts, most German cars need specialty tools to even change certain fluids! ..thats a pain!
I think they mean 30% better fuel economy. It may only be 7% more efficient but diesel stores more energy per litre which means you need to burn less for the same energy output.
Think about it, newtons laws of thermodynamics tell us about the conservation of energy. We cannot create energy nor destroy it only convert it, energy losses are usually in the form of heat escaping. If turbos really operated on the pressure of the exhaust then compound turbocharging would be pointless and counterproductive as the force would push back on the piston during the exhaust stroke. Of course there's miniscule resistance, but the turbo really gets energy from the heat of exhaust.
and (sorry, forgot to write this in first response) I also consider the european version of honda accord to be the best value on the new car market right now
continuing..... 5 valve engines have smaller valves that enable higher revs - an advantage negated by better, lighter materials and stiffer springs Bottom line - The marginal increase in volumetric efficiency is probably not worth the increase in cost and complexity. Similar improvements in breathing can possibly be made in other areas of design of a 4 valve engine without the cost increase of a 5 valve design
Well yes and no,there is common rail injection which improves the poweroutput drastic by injecting diesel multiple times which each stroke but as you said,we won't see a Ferrari running on diesel any time soon.
Not so in this generation of Diesel. The multiple injections during the power stroke are monitored in real time via a pressure sensor in each glow plug assembly, the REAL secret to this generation. NOx emissions are greatly reduced by a dual pass EGR system, lowering combustion temperature and NOx. The exhaust of this engine is cleaner than a gasoline engine; the pipes are still silver on the INside after many thousands of miles.
new engines are all turbo. (petrol and gas both) with a turbo engine you dont need 5valves per cylinder. the turbo and injection make all the torque and hp. you can safe the enormous engineering and fabrication-effort which are required in making 5valves per cylinder heads.
The description for the turbocharger is wrong. The exhaust turbine doesn't draw out anything - it's spun by the exhaust, and drives the intake turbine.
I love the RS cars, A buddy of mine has an RS4 and indeed its fast enough for any track day but TBH I´ll take a BMW "M" car any day before an Audi RS... Especially the M3 E92 (Drools)...
And for passenger cars. A turbodiesel is really really nice to drive as they use to have incredible low-down torque (here in Europe most prefer to use manual gearboxes so the engine characteristics do matter), and they consume noticeably less too. At least in European fuel prices, your wallet will thank you if your car runs on diesel.
Do they really put each individual engine into a "test vehicle" - or do they do that just once for the first production car, to get the emission specs, then just assemble engines into their actual cars for the next few thousand units?
germans made this big complicated clockwork while italians made piezo electric high pressure injectors that work more precise and give more power. now germans use the piezo's to. anyhow that V6 was an awesome engine
yes that was till 20 yrs ago , the new ones don't rust before 14 yrs of life. or even longer with some models. the only problem with some cheaper italian cars is that the seats and seat position aren't that comfy as the german ones
3:30 one turbine compresses air entering the intake manifold, the other DRAWS OUT THE HOT EXHAUST and sends it out the cars exhaust pipe...dafuck! turbochargers ARE DRIVEN by hot exhaust gases, they dont send them out of exhaust pipe. Cars without turbo can get rid of exhaust gases too :)
Diesels are pretty efficient but don't believe the quoted mpg, especially when we're talking about NEDC mpg because manufacturers have become experts at cheating the test to get amazing fuel economy and emissions that aren't anywhere near real world numbers. You'd be lucky to get more than 20mpg from a V10 TDI.
In fact roboters are only dangerous for uneducated workers. You still need enough people for R&D, construction design, production engineering and so on. Servicing your car is also something a robot can't do.Only problem: you need to be well educated to do these jobs. All people who obviously can't do that can still clean the production hall for example ;-)
I just wish that VW group would use gears for the camshafts not chains and sprockets, they could really increase the power of their engines if they chose to use gears not chains.
less moving parts generally means more reliable as in there is less things to break. chances they abandoned it was because there was no longer a need to, maybe valve technology became more efficient making the use of 5 valves worthless.
a turbocharger both compressing the intake air and also drawing out the exhaust gas and sending it out the exhaust system. i would really like to have a turbocharger that can do that.
I'm not 100% sure about the diesel, but I don't think they ever made a 5v per cylinder diesel engine. As for their petrol's, after they introduced the direct fuel injection in the FSI and TFSI engines, there's simply not enough room in the cylinder head for 5 valves any more. Not that there ever was any real indications on that 5 valves has any advantages over 4 valves.
It seems to me that you didn't understand the benefits of using more valves per cylinder... 1. You have more intake area surface 2. It is lighter and able to stand higher revs
3:35 says the turbo draws out the hot exhaust..... actually. as im sure we all know, the exhaust turns the exhaust wheel in turn turning the compressor wheel...
He also said there's two turbines... If you understand what he said then he got his point across. If you didn't understand what he said, then you wouldn't care, and he got... a... point across...
krap101 Stating that the turbo charger draws out the hot exhaust and then sends it out the exhaust pipe is dead wrong. The point that comes across is that the person who wrote the text does not have a clue how a turbo works.
When they do this, audi is telling them what to say. The last thing they want ignorant people to hear is "it sucks power away" because that's all that would stick, when the turbo in concept does the opposite.
they don´t test every engine, no. That would have been extremely time consuming and expensive. The test you saw here is tests that is done to only some cars in the production. How often these tests are done depends on car company and so on.
Audi's TDI Engines are amazing for example the 6.0L TDI V12 from the Q7 It makes 500hp and 738 lb/ft of torque , and consumes 9l/100km!! More than 20mpg!
+1975 First On Race Day Capri 3.0 Ghia more amazing is the price tag back then around $ 2 million more amazingly the performance of that engine on the Q7 is comparable to the BMW M5 V10... oh god if I were that filthy rich!
last step: Install the ECU that tricks smog
how its made is so addictive
At 0:58 I just love how during the cylinder honing process, the block spins around instead of the honing head which here stays fixed moving up down only lol :)
It looks like a plasma coating process by the way...
The engine uses little fuel per mile, that's already greener without any emission software or control systems. This is an awesome engine hands down, I would like one without the "fixed" software. There is a dark downside to owning a diesel. Due to the quality of metals required, the more precise machining, the ultra high pressure injection amongst other things, diesels are expensive to fix. If you are a person who neglects their vehicle regularly, stick with a gas engine. A diesel will treat you right, but it only returns the love you give it. Gas engines care a lot less about your love.
very nice video, I like Audi items
Holy crap. Ya know I just finished rebuilding my 95 Z28 with an LT1 motor. I was like, dang engines have come a long way since the late 70's. Then I see this and thank god I only got ONE timing chain and ONE pair of valves per cylinder to deal with LOL.
We love our V8 2003 allroad, thanks Audi for an amazing vehicle.
very good video for fans of the engines and technology
I always said that until I bought my first turbo diesel a year ago. I FRICKIN' love it now. The torque is amazing, you accelerate on the motorway and it goes like a stabbed rat.
Oh, a Turbo extracts the exhaust gasses does it? Does anyone on Discovery have any idea about these things, jeez, I know it's only a TV programme but please get it right!
yes
tperr63
A turbo is driven by the exhaust.
They also keep referring to "combustion" which doesn't happen with a diesel. Diesel's work on compression.
Well, combustion does occur in the cylinder, perhaps you're confusing it with 'ignition', which kinda happens but it's ignition due to the high temperature within the cylinder and not a spark, but there are some corking errors in these programmes.
***** Yeah my mistake, I mean't ignition. However it still stands that diesel does not need a specific air/fuel mix to make power. It requires it to make power cleanly.
If I remember right, Yamaha used it in earlier r1 models but then stopped making them because the intake port walls needed to be so thin, and the power gain is minimal compared to well designed 4-valve design :)
It's also cheaper to make and maintain.
The turbocharger does NOT "draw out the exhaust"! It actually IMPEDES the flow of exhaust out of the engine but captures the energy required to drive the impeller which forces air into the engine.. More power is gained by the additional air than is required to power the impeller, so a net gain in power results.
That intake manifold is a lovely piece of hydroformed metal
This turbocharger seems like GTB1756VK which has 56 mm on exducer (inducer 41,5mm), but on 3,0TDI are usually installed GTB2260VK which has 44,5/60 (inducer/exducer) ... and these spin really 200k RPM. We use these turbochargers on 1,9TDI and these spins about 250k RPM.
Great show!!!!!!!
1:16 , i am so excited after watching that scene ....oooo wow ...
The exhaust side of a turbo DOES produce backpressure which IN ITSELF would reduce an engine's power. However there is a NET GAIN in power from the increased intake air forced into the engine by the impeller on the intake side of the turbocharger.
Yes I am fully aware of the mechanical dirve of the compound turbos being used on a few modern heavy trucks.
Mechanical drive from compound turbos were also used on some airplanes in WWII
Gear case would need to be constructed on the side of the engine adding a bit of weight to house the idler gears and main gears for the crank and camshafts. Also the size of the gears would require the engine to be a little bit longer than it is currently to properly house the gears in the gear case. Not impossible its just they would have to redesign the engine to make it work with the current size constraints they have with their cars.
Actually the turbo uses the waste heat in the exhaust to compress the air without robbing the engine of power. This is unlike a supercharger which would be gear or belt driven and thus takes power from the crankshaft. Believe me or don't in recent years more commercial trucks have compound turbo charging (not talking about series turbocharging) where a second turbo has the impeller drive a gear on the geartrain to add power to the crankshaft instead of driving a turbine to compress air.
small gripe: "retaining frame for the crankshaft" is called a crank girdle. Otherwise the guy is right turbo exhaust wheels don't suck
These workers make a living wage and their CEO makes substantially less than american workers. America has a lot to learn from Europe.
+baxtar1963 Their CEOs make less because auto manufacturing is a low profit business, where the high margins are in spare parts and the cars are sold with profit margins that would kill most businesses.
Also, in Europe we drive cars for 10, 20 years because we can't afford to buy new ones, and because of taxes cars here are more expensive than in America.
No shit out CEOs make less. We can barely afford to buy their products.
Fun fact: Volvo's D24 is a Audi engine, so is the 2.5D in the 850/S/V70 and early S80s.
Remember back in the day when people worked hard and didn't complain? ;) I spent enough time working in a unionized factory to know the tendencies of human 'robots'.
That engine looks like a nightmare to work on full of plastic junk but its cool to see how an engine is made though cheers for the upload.
Cool ring compressor. I have to look for one like that.
As you haven't heard - there is two turbos, one compresses air another takes exhaust out.
1.) Put a turbo in an oven and heat it to 1.300F degrees and watch it spin.
2.) Did you ever see a windmill spinning on a hot day when there was no wind?
In the old days before common rail injection technologies, having more valves was the best way to achieve best fuel dispersion in the zylinder. Now since that is achieved by high pressure injection, regulated by nozzle geometry and ecu chips, having 3 intake valves became obsolete.
Audi, more or less it is simply The Best.
All things are be good explain its too easy explain any man take good knowldge from there i like it
No doubt a cost vs. benefit decision.
@Serostern I don't think it's hydroformed. The finish on the material looks more like that of cast aluminium...
Nice vid thank you
You diesel haters are something else again. The Audi turbo diesels win races and use identical suppliers used by Benz and BMW. THE FACTS ARE that the use of genuine German synthetic oils keep them all running to 500k miles. They all use piston, rod, chain and tensioners, and injection from identical suppliers and that there are more diesel powered cars in Europe than gas ones. Diesels do not suck. They outlast gas powered engines even though they have very high compression ratios. BMW BENZ and A
Excuse got turbine and impeller backwards. Might as well also note that what I meant by series turbocharging was to have the air compressed twice by two turbos. The advantage of turbo is of course more power without wasting energy. Superchargers are more responsive as they don't need to spool up to speed and you don't have to worry about overspeed and loss of lubrication to a spinning turbo after heavy engine load and immediate shutdown.
They explained the turbo wrong. The exhast side turbine doesnt draw out exhast instead it is driven by the exhast and compresses air on the intake side.
Putting it that way; yes, stuff will wear faster. Keep in mind though; if your wanting to "race" or drive aggressively, just get a "RS/S" Audi, they build those engines to withstand those extremes! As for the bolts, most German cars need specialty tools to even change certain fluids! ..thats a pain!
I think they mean 30% better fuel economy. It may only be 7% more efficient but diesel stores more energy per litre which means you need to burn less for the same energy output.
Think about it, newtons laws of thermodynamics tell us about the conservation of energy. We cannot create energy nor destroy it only convert it, energy losses are usually in the form of heat escaping. If turbos really operated on the pressure of the exhaust then compound turbocharging would be pointless and counterproductive as the force would push back on the piston during the exhaust stroke. Of course there's miniscule resistance, but the turbo really gets energy from the heat of exhaust.
The new engine :) lovely.
and (sorry, forgot to write this in first response) I also consider the european version of honda accord to be the best value on the new car market right now
continuing.....
5 valve engines have smaller valves that enable higher revs - an advantage negated by better, lighter materials and stiffer springs
Bottom line - The marginal increase in volumetric efficiency is probably not worth the increase in cost and complexity. Similar improvements in breathing can possibly be made in other areas of design of a 4 valve engine without the cost increase of a 5 valve design
Not quite. The TT RS has a 5 cylinder engine, but still 4 valves per cylinder. Regardless, it's an amazing engine!
thats one cute turbo
well, it's all semantics. The turbo can indeed spin at 200k rpm: 200,000 rotations per minute
Well yes and no,there is common rail injection which improves the poweroutput drastic by injecting diesel multiple times which each stroke but as you said,we won't see a Ferrari running on diesel any time soon.
Not so in this generation of Diesel. The multiple injections during the power stroke are monitored in real time via a pressure sensor in each glow plug assembly, the REAL secret to this generation. NOx emissions are greatly reduced by a dual pass EGR system, lowering combustion temperature and NOx. The exhaust of this engine is cleaner than a gasoline engine; the pipes are still silver on the INside after many thousands of miles.
new engines are all turbo. (petrol and gas both)
with a turbo engine you dont need 5valves per cylinder.
the turbo and injection make all the torque and hp.
you can safe the enormous engineering and fabrication-effort which are required in making 5valves per cylinder heads.
The description for the turbocharger is wrong. The exhaust turbine doesn't draw out anything - it's spun by the exhaust, and drives the intake turbine.
I love the RS cars, A buddy of mine has an RS4 and indeed its fast enough for any track day but TBH I´ll take a BMW "M" car any day before an Audi RS... Especially the M3 E92 (Drools)...
And for passenger cars. A turbodiesel is really really nice to drive as they use to have incredible low-down torque (here in Europe most prefer to use manual gearboxes so the engine characteristics do matter), and they consume noticeably less too. At least in European fuel prices, your wallet will thank you if your car runs on diesel.
yes but we never used the acronym DCI TDCI or CDTI.
Italians use only the acronym JTD JTDM JTDM2
@ValleyImportsInc "Simply The Best" is a Tina Turner song.
Perpetual motion. YAY! :D
Ha definitely! Love BMW! Theres something about the E46 I just love! The new M4's are really growing on me too!
Exhaust turbine does draw some power tho. Im sure you heard for turbo lag?
Do they really put each individual engine into a "test vehicle" - or do they do that just once for the first production car, to get the emission specs, then just assemble engines into their actual cars for the next few thousand units?
audis engines are amazing
Turbocharged engines DO lose power at high altitudes, thou not as much as N/A engines.
So the rubber strips are better?
Excellent, I wanna see them explain how a sports bike Engine works.
Love the duct tape on the testing rig. real space age equipment...
germans made this big complicated clockwork while italians made piezo electric high pressure injectors that work more precise and give more power. now germans use the piezo's to.
anyhow that V6 was an awesome engine
yes that was till 20 yrs ago , the new ones don't rust before 14 yrs of life.
or even longer with some models.
the only problem with some cheaper italian cars is that the seats and seat position aren't that comfy as the german ones
3:30 one turbine compresses air entering the intake manifold, the other DRAWS OUT THE HOT EXHAUST and sends it out the cars exhaust pipe...dafuck! turbochargers ARE DRIVEN by hot exhaust gases, they dont send them out of exhaust pipe. Cars without turbo can get rid of exhaust gases too :)
Diesels are pretty efficient but don't believe the quoted mpg, especially when we're talking about NEDC mpg because manufacturers have become experts at cheating the test to get amazing fuel economy and emissions that aren't anywhere near real world numbers.
You'd be lucky to get more than 20mpg from a V10 TDI.
In fact roboters are only dangerous for uneducated workers. You still need enough people for R&D, construction design, production engineering and so on. Servicing your car is also something a robot can't do.Only problem: you need to be well educated to do these jobs. All people who obviously can't do that can still clean the production hall for example ;-)
I just wish that VW group would use gears for the camshafts not chains and sprockets, they could really increase the power of their engines if they chose to use gears not chains.
less moving parts generally means more reliable as in there is less things to break. chances they abandoned it was because there was no longer a need to, maybe valve technology became more efficient making the use of 5 valves worthless.
Audi TDI - How it's made: You take car, you take engine, you bake them for 20 minutes and you have an Audi TDI.
Why's that? Also could they not be converted?
why does audi not use the 5valve per cylinder anymore?
I fucking love mechanical machinery.
I see how I miss wrote it. Audi now owns Ducatti, I see I put Man etc which is VW. You are correct sir.
The 3 valves are for the intake.
not the exhaust.
a turbocharger both compressing the intake air and also drawing out the exhaust gas and sending it out the exhaust system. i would really like to have a turbocharger that can do that.
Awesome
Clean as gas, lol! This is too funny! Now they are switching to something really clean: ELECTRIC
Depends entirely on the breathing ability of the turbo.
i have a manual engine hoist :/ i prefer it over a hydraulic, i feel like i have a better since of control over what i am doing
I think Discovery wanted to make the episode (to make money), Audi agreed, takes media coverage as payment.
I'm not 100% sure about the diesel, but I don't think they ever made a 5v per cylinder diesel engine. As for their petrol's, after they introduced the direct fuel injection in the FSI and TFSI engines, there's simply not enough room in the cylinder head for 5 valves any more. Not that there ever was any real indications on that 5 valves has any advantages over 4 valves.
Last time German factory's were filled with workers rather than robots, Europe got a little bit angry.
Is that a BMK-engine or the newer one?
I was actually looking for how it's make, not assembled. But, not bad.
It seems to me that you didn't understand the benefits of using more valves per cylinder...
1. You have more intake area surface
2. It is lighter and able to stand higher revs
High altitudes - what does it mean? Like plane - altitudes?
In Europe the highest pass road is 2802 meters high ( Cime de la Bonette). Maybe that mean "High Altitude".
They use 4 valve heads now that have 2 larger exhaust valves instead of the 3 small ones. Supposedly it works better....
3:35 says the turbo draws out the hot exhaust.....
actually. as im sure we all know, the exhaust turns the exhaust wheel in turn turning the compressor wheel...
He also said there's two turbines... If you understand what he said then he got his point across. If you didn't understand what he said, then you wouldn't care, and he got... a... point across...
krap101 "and he got... a... point across... "
He sure did. Blatantly wrong though, but he got a point across.
Raspoetin a Tell me the difference between a compressor wheel and a turbine wheel...? Aside from efficiency... Both can do either thing...
krap101 Stating that the turbo charger draws out the hot exhaust and then sends it out the exhaust pipe is dead wrong. The point that comes across is that the person who wrote the text does not have a clue how a turbo works.
When they do this, audi is telling them what to say. The last thing they want ignorant people to hear is "it sucks power away" because that's all that would stick, when the turbo in concept does the opposite.
its actually volkswagen that own man, seat, skoda, scania, lamborghini, bugatti, bentley, porsche and suzuki
It's also cheaper and less complicated so the engines are more reliable.
I wonder if Audi payed for this episode or if Discovery payed Audi for it.
New design is the only reason why they would drop it. The 4 valves must flow better
With such amount of technology this car must be a bitch to service.
they don´t test every engine, no. That would have been extremely time consuming and expensive. The test you saw here is tests that is done to only some cars in the production. How often these tests are done depends on car company and so on.
i get your point, im sure it also got rid of human error and turnover rate. cheaper cars.
I loled at "pollute less".
they guy in 4:39 looks such a gangster