View Full Version : Audi TT 2.0 TDI Quattro Announced
devonmikeyboy
27-02-2008, 21:56
http://jalopnik.com/361132/audi-tt-20-tdi-quattro-announced
My sources right yet again.
UncleFester
27-02-2008, 22:02
Mmmmmmm - now that i do like! New TT looks with a decent engine!
SEAT are you reading this - where is your 4x4 Leon Tdi with DSG please :)
edit: in fact the best thing i gleaned from that page is that the Americans can't have it :D
devonmikeyboy
27-02-2008, 22:23
I do like the looks and interia of the new TT. Not drivern one yet though.
Hrrmmm
Reading the press release, this is the new common rail diesel engine?? :confused:
Powerful, refined and efficient: The 2.0 TDI
The new four-cylinder TDI engine (engine displacement = 1,968 cc) represents
a fresh take on the all-round compelling qualities of the TDI concept. Designers
of the dual-camshaft, two-liter model looked to its predecessor--the most-
produced diesel engine in the world--and expanded upon its major strengths:
driving pleasure, efficiency and refinement.
The new common rail injection system is equipped with highly modern piezo
injectors, whose eight-hole injection nozzles can perform up to five distinct
injection sequences per cycle. This fine degree of modulation creates a modest
pressure increase in the combustion chambers, resulting in a significantly
reduced noise level. The system pressure of 1,800 bar allows fuel to form a fine
dispersion, enabling precise, highly efficient combustion.
The turbocharger is also part of a new generation and operates with adjustable
vanes that allow torque to build up rapidly. The positions of swirl flaps on the
intake manifold are controlled by electric motors in order to adapt the flow of air
to the current load and engine speed. The geometry of the engine's pistons has
been modified, and the acoustics of the camshaft drive belt have been
overhauled. Just as they did in the preceding model, two balancing shafts
reduce the vibrations arising in the crankshaft drive.
The cumulative result of this progress is a high maximum engine speed of
5,000 rpm and, most importantly, improved thermodynamics in the combustion
chambers. What this means is that the engine can run on up to 60 percent
recycled exhaust that has been thoroughly cooled by the radiator. This results
in a drastic reduction in untreated NOx emissions, with the 2.0 TDI already
meeting the threshold values of the upcoming Euro 5 standard.
That to me isn't the current 2.0TDI found in seat range.
I did think reading other docs the new common rail was putting out more like 210bhp though.
devonmikeyboy
27-02-2008, 22:30
The latest diesel engines in the SEAT range is the PD 140/170 engine. This is a common rail engine as used in the Seat diesel BTCC cars.
?? You either have a PD engine or a common rail engine ... not both ???
Or have i miss-understood ?
/can you guess i'm not mechanically minded ;)
?? You either have a PD engine or a common rail engine ... not both ???
Or have i miss-understood ?
/can you guess i'm not mechanically minded ;)
Aren’t they two different fuelling technologies! :blink:
Aren’t they two different fuelling technologies! :blink:
Yes, PD engines and common rail engines are different. common rail being newer and better.
devonmikeyboy
28-02-2008, 18:15
Yes, PD engines and common rail engines are different. common rail being newer and better.
I think you will find it`s the other way around mate with the common rail design diesel engine has been around a lot longer then the PD. Which is better depends on your point of view.
I think you will find it`s the other way around mate with the common rail design diesel engine has been around a lot longer then the PD. Which is better depends on your point of view.
:blink:
http://en.wikipedia.org/wiki/Common_rail
Quote
Volkswagen Group: The 4.2 TDI (V8) and the latest 2.7 and 3.0 TDI (V6) engines featured on current Audi models use common rail, as opposed to the earlier Pumpe-Düse engines. The 2.0 TDI in the VW Tiguan SUV uses common rail, as does the 2008 model Audi A4.
WaveyDaveyGravy
02-03-2008, 22:49
VW group decided to pursue PD while everyone else was going down the Common rail in the 90's. Clearly the move to Common rail now says that they took PD as far as they could but they can achieve more going forward with the other technology.
Reading about the TT and the new engine, it seems that's what they've done.
What is the difference between PD and common rail?
Like the idea of that tt though although with the quatro system is gonna have acquired a few pounds.
WaveyDaveyGravy
03-03-2008, 21:46
As far as I'm aware PD has a pump for each cylinder but common rail has only one pump for all the injectors
What is the difference between PD and common rail?
Like the idea of that tt though although with the quatro system is gonna have acquired a few pounds.
Try post 11 ^^^^^^^:D:D
All the other car manufactures were adapting the common rail technology while VAG were going for the Pumpe Duse technology.
From what i have heard and read the PD technology has a more brutal delivery of power. In other words the kick in the back, when you floor the trottle :rolleyes:
Lately with all the enviroment issues and constantly development of technologie the common rail seems to be more efficient with fuel and CO2. Together with higher horsepower they are the way to go for the future. Power delivery is also smoother (like the BMW 325d a drove yesterday) over the total rev range.
I have also read in a Dutch car magazine that Audi were using a 2.0TDI common rail diesel in the 3 serie cross coupe with 204bhp/400nm. The specifically said it was not a chipped 2.0TDI common rail (143bhp) engine but one were the used the base of a 2.0TDI common rail 143bhp with a lot of changes :confused:
http://www.autoblog.nl/archive/2007/04/24/audi-cross-coupe-quattro-2
Translated in English...
Like last week already present Audi on the car at tone interview of Shanghai were read a study model that it keeps middle between A3 and Q7, the cross coupé quattro. The techneuten at Audi have not sat still, the concept has equipped with 2.0 TDI which is this way clean that he satisfies now already to the euro 6-norm. Audi do not let mention it thus after this prominent person in the press bulletin. On the concerning 2.0 TDI I want continue gladly still just as. The four cylinder uses of Bluetec-technologie, the consequence of a cooperation between DaimlerChrysler and Audi/VW in the field of clean those awl. Also this is very pleasant. To end up we at the capacity: maximum 204 pk and 400 Nm cross-belt. Where have we rather seen that? Correctly yes, suffered at BMW, maandje. BMW its 2 litres provides turbodiesel in 3 tastes: 143. 170 and recently also 204 pk. Audi also provide its 2.0 TDI in 3 tastes: 140. 170 and now therefore also with 204 pk. Does it lie to me or does go up these developments quite right with each other? Of a cooperation between BMW and Audi is as far as I weet no talk is, them then aware each other to for copying or secretly under one hoedje it is there nevertheless played? For those who the cross thinks coupé to recognise: he does not deviate much from Roadjet-concept that Audi showed more than a year ago in Detroit. Here they stand beside each other, left CC, the Right the Roadjet: CrossCoupe the US Roadjet The press bulletin: Audi present cross coupé quattro to the Audi on the car at tone interview of Shanghai. This study model combines the styling and the dynamics of a compact sportwagen with the space offer and the veelzijdigheid of SUV. The innovative Audi cross offer much comfort and file pleasure to coupé quattro under all circumstances; he spares the environment as much as possible at the same time. The compact Audi cross coupé quattro have elegant coupévorm, which amalgamates fraai with ` offroad-elementen if the firm proporties and 20-inch wheels, which ensure much floor freedom. With its striking appearance the Audi cross coupé quattro right make clear that he is sport-loving and capable - irrespective of the circumstances. Justified strength The Audi cross coupé quattro have a four cylinder 2.0 TDI with common-rail inspuiting and Piezo-injectoren. This engine provides a capacity of 204 pk and a cross-belt of 400 Nm. This diesel strength source has transversely built in and contributes this way to the compact dimensions of the study model. 2.0 the TDI ensure high performances, but consume on average only 5.9 l/100 km the diesel fumagine filter (DRF) and Bluetec-techniek ensure a minimum emission of fumagine particles and stikstofoxiden. The Audi cross coupé satisfy quattro as a result, now already to the future euro 6-emissienorm.
Lets just wait on the future...