TopDog Racing visits 911Motorsport

Last week, the TopDog Team and some R Gruppe friends visited 911Motorsport in Belgium for a Porsche 911R comparison. 

911Motorsport is well known for their large collection of original race Porsche 911's and were kind enough to show us around. Cars such as a 1973 RSR, 3.0L RS, 1974 RSR, 2.5 ST and SC RS are all around to admire. But the 'piece de resistance' is of course a 1967 Porsche 911R - the grandmother of all Porsche RennSport cars. A limited serie of 4 prototypes and 20 production models were build by Porsche Werks in 1967. 911Motorsport has one of the production cars in their collection.

The TopDog Team worked for almost 2 years building a 911R tribute car as you can imagine the pricing on the original cars has gone through the roof. An original 1974 RSR will look cheap! And what is a better tribute to all this work than to compare the 2 cars side by side ?

First the car needed to be fired up by the skilled engineers..

The 911R is an extremely lightweight Porsche 911. The weight has been brought down to just 825kg which was down a wapping 200kg from the original 911S in those days. The car was fitted with a half roll cage and polyester panels for anything that opens as well as the front fenders. The car is powered by a 901/22 engine which comes very close to a 906 engine with a re-enforced 5-speed 901 transmission. The 2.0L twinspark engine, breathing through 46 Weber carburetors produces some 210 bhp at 8000 RPM.

Our own car is based on a 1967 911T, which has been stripped to bare metal and re-build as closely as possible to the original. The empty weight of the car is only 850kg, a mere 25 kg more than the original car, most because of a full roll cage, a metal fuel tank and an aluminum case (901/3). It is powered by a 906 based engine with all original parts, such as centre lube 906 camshafts, a 906 cam housing, steel forged rockers with nitrated axels and a magnesium small fan and fan house. The engine produces a healthy 200+ bhp at 8000 RPM!

And then it was time for a side by side comparison. The TopDog Photographer picked a nice spot in the garage and captured these two beauties on 'film'.

We will run a full article on the build of this beautiful car and the history of the 911R on this blog so watch this space !