Audi R8 TDI finally given the go-ahead

[sami_voodoo]

Here you go, diesel-heads! The Audi R8 V12 TDi has been finally been shown at the Detroit auto show. It's one heck of a looker, making the original V8 petrol look like absolutely meek in comparison. Here's a link for the story:

http://www.autoexpress.co.uk/news/autoexpressnews/214917/audi_r8.html?CMP=NLC-14-01-08

Pictures after the jump

[civic99]

@ sami
thats an amazing car ... loads of torque and still great mileage
one thing though ... strange to see that its a manual tranny .. wouldnt an auto be better because of all that torque ?
btw , id still stick to the manual !

[Bilaltq]

HELL YEAH! I'LL TOTALLY PAY $3.48/gal AS OPPOSED TO $3.15/gal FOR DIESEL!!

Practical for pakistan though...

[sami_voodoo]

Here are a bunch of pics from the site:

Cheers!
Sami

[civic99]

@ bilal ... haan because almost everyone has a gas guzzling sucker in USA

[Fuhrer_Hurricane]

you made my day.........thx

[Bilaltq]

But i don't really get the point of a diesel supercar unless...

umm...

you want to haul some a$$ but you can do the same amount of hauling with a petrol-besed model

[sami_voodoo]

@civic99

I agree about the Auto vs. manual thing. I find it rather intriguing how they've managed to come with a gearbox that can harness all that torque. I hope it doesn't need a wrestler's arms to shift gears...

@Bilaltq

It's not for efficiency bro' It's a halo product to showcase their knowhow (I think^o)). In any case, I'd love to have it (for the efficiency )

@Fuhrer_hurricane

You're very welcome! Glad to be of service!

[civic99]

@ sami

thanks for agreeing

isnt this the same engine which is also used in the R 8 le mans race car ? as they converted to diesel 2 years ago

[Bilaltq]

@sami:
ahhh so it's not for sale (atleast in the near future?)

[tiger727272]

I personally feel Audi have set a precedence here by producing a diesel powered supercar, just as they did in le mans. More to prove to other manufacturers that it is possible to make a diesel supercar.

But in the looks department this beats the current r8 hands down, looks absolutely awesome.

[sami_voodoo]

@Bilal

It's the same base, although the engine management is a bit more "pedestrian", so is the injection system. The system used in the racer (The R10 by the way, which raced last year at Le Mans) could inject fuel at 2000+ Bars. Problem is, it's extremely expensive, and not reliable enough for an everyday car.

In addition, the racing engine revved to 5800 RPM and produced 740+ BHP from the same block. I know for sure that ABT will be working on the Q7 V12 TDi's engine, which is the same as for the R8, and in the near future we'll see huge power figures from this engine.

Oh and BTW, it seems that this engine isn't as powerful as the one in the Q7, maybe because it's manual...

[Bilaltq]

2000+ BARS!!! HOLY LAMBCHOPS!

The racing engine must put out 740+bhp at around 3000-ish rpm right? Amazing machines.

[civic99]

@ sami
yea sorry so its the R 10

damn 740 diesel hp that must be like flying hehe

[sami_voodoo]

@Bilal

Oh no!:d This engine loved to rev! Max HP at above 5000 RPM. They never release actual HP / Torque figures, so you have to speculate.

@Civic99

Ooh yeah! Imagine riding on that sea of torque. No need to change gear! It's a comparable to a turbo D16 and a stock B16. Both produce 160 ish BHP, but one has 50% more torque than the other. I'd go for the turbo.

[Bilaltq]

WOW! That's not that normal for a diesel engine is it??

[civic99]

hehe yea ur not the only one who would choose the turbo

[gem_guy]

@sami...

REPOST:P:P

maan..I'm in love with this car! I was already in love with this engine!

[sami_voodoo]

@Tiger

I agree, although Audi isn't the first to introduce a diesel sports car. There was another manufacturer, who put a DMAX engine coupled with an 8-speed automatic in a tube-framed car resembling a TVR. It's the Trident Iceni.

https://www.pakwheels.com/forumreply_az_TopicID!43852~ForumID!1~pw.html

@Gem_guy

In the excitement I forgot that I had made a previous thread :p! Thanks for pointing out!

@Bilal

Nope, it's not normal, but the thing that limits a diesel engine's speed is the combustion process. Diesel combustion is slower because;

a. The fuel is injected, vapourised, and burnt during a maximum of about 60 degrees of crank rotation. At lower speeds, it's around 20 degrees.

b. Diesel fuel vapourises "slower" (needs more energy to vapourise than petrol), thus the vapourisation phase is slower.

c. In a petrol engine, fuel is injected and vapourised outside the cylinder, so only the combustion is left behind, which doesn't take long. Flame speed for diesel and petrol vapours are about the same.

If you can shorten the duration of injection, vapourisation, and / or the combustion, you can rev higher and potentially make more power.

Apologies if I went into too much detail! But that's what really happens in a diesel engine! :d

Cheers!
Sami

[toofast4u]

nice car but not too satisfied with the interior specially the gear knob ... so big ... looks like a gola gunda