Progress on the cooling system of the Audi R18TDI

The first real time since September, I have a bit time to continue building on my Audi. It’s still an amazing car. I continued on the cooling system. More precisely on the water radiators. They are insanely big. Much bigger than the ones at the RB7. But considering the fact, that the Red Bull runs 1.5 hrs in Monza by 70% full throttle or two hrs in Spa Francorchamps by 65% full throttle and the Audi runs 24 hrs by 85% full throttle in Le Mans you shouldn’t wonder that the Audis radiators are much bigger than F1 radiators. At the current status, namely the fixed intercoolers and the finished water radiators, you can see the whole mass of the car. It’s insanely wide and voluminous. F1 car’s max. width is 1800mm and 1400mm chassis width. LMP’s are allowed to be 2000mm (tyres and chassis). Finally the engine is fitted to the monocoque. Before I did that, I had to do the holes at the front (for nose attachment) and rear (for engine fixing and engine cover attachment). That was a difficult work. Because of the strenght of my chassis, I had to use a needle, a nail and a hammer. Locating the point with the needle and then hammering in the nail into the chassis. It works extremely satisfactory.

Left hand side water radiator with it's air guide. I'm not sure at the mo, what for the two ducts are. One of them I guess is for the Diesel cooling. For the second one I've no Idea.

Left hand side water radiator with it’s air guide. I’m not sure at the mo, what for the two ducts are. One of them I guess is for the Diesel cooling. For the second one I’ve no Idea (maybe also Diesel cooling…?).

Thr radiator itself got quite well. The line fittings were a bit more complicated than the ones at the RB7, but I managed to do them very well.

The radiator itself got quite well. The line connections were a bit more complicated than the ones at the RB7, but I managed to do them very well.

ased

The single left hand water radiator with it’s mounted air guide.

saefaefae

Another view of the left hand side water radiator.

The two water radiators. Only the left one had these two ducts. At least to follow my research.

The two water radiators. Only the left one had these two ducts. At least to follow my research.

Pics of this area of the car are quite rare. Even if there's the cut-Audi around. But that's an e-tron-quattro/ultra and not a TDI. There are quite bg differences between the 2011 and the 2012 cars.

Pics of this area of the car are quite rare. Even if there’s the cut-Audi around. But that’s an e-tron-quattro/ultra and not a TDI. There are quite big differences between the 2011 and the 2012 cars.

Here you can see the relatively small air intake for the big water radiators. But with that fat intercoolers beside the cockpit, there's almost no aternative.

Here you can see the relatively small air intake for the big water radiators. But with that fat intercoolers beside the cockpit, there’s almost no alternative.

A view from top. Here you can se the whole witdh of the whle engine/colloning system.

A view from top. Here you can see the whole witdh of the whole engine/cooling arrangement.

A view from th rear.

A view from the rear.

rear

Another rear view.

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About paulsf1

My name is Paul Bischof. I’m a student in mechanical engineering at the Technical University of Graz in Austria, expected finishing in February 2016. Since I was eight years old, I am building model planes out of paperboard. Since 2004 I scratch (that means building without an assembling set) Formula 1 and sportscars in 1:10th scale. The average time I need for such a car is around 400 to 700 hours within 4 to 8 months. One car has around 3500 up to 5000 single components. On this blog, you can take a look on my work and later, after my studies, hopefully you can see me in Formula 1.

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