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965??

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What on earth is model 965? Was this the turbo 964? A bit of Googling seems to suggest that the model number was only in common use in France and Germany, but some pages refer to 964 turbo and 965 as well (and I can read French and German) and I am still confused.

Anyone who knows about 930, 964, 993, 996, etc. has a bit of backgrond in the many-decades of 911 that Porsche does not make public. But I have owned Porsche now for over a decade (and 911 for a wile shorter), but came across 965 only yesterday!

And it was not a typo, because the context made clear that it was a model in addition to 964.

Alistair
 
The 965 was the development number for the car that was to become the 969. This was intended to replace the 930 Turbo, but go upmarket - and looked rather like a 959. Initially it was to have been a twin turbo 3.5l. It had problems with excessive temperatures in the 4valve cylinder heads, and indeed the cylinders themselves. At one point a V6 version of the V8 Indycar engine was proposed by Helmuth Bott as a solution to the problem. A V8 was proposed by Manfred Bantle.
In the end it was decided to water cool the flat 6 instead, with a combination of 964 bottom end and water cooled 959 cylinder heads.
Various other configurations were then also proposed and tried, including starting with the 930 engine in 1991, and replacing with the water cooled engine in 1992.
Finally in November 1988 they went back to the V8 idea (Indycar based) and the engine would also be used in the 989.
On Dec 8th 1988, the project was cancelled!

Since then the model number seems to have been adopted (especailly by the French) for the 964 Turbo. This is understandable as the cars commenced development at the same time, although they had little in common.
 
Thanks for that. I did not realise that the 959 used water cooling, and it is very strange the thought of using a V-configuration in the back of one of these cars.

IMO, the original idea of air cooling and flat configuration is a good idea because it puts a lightweight engine (air) low down (flat). Moving to a heavy engine with a high CoG (a water-cooled V) it seems to make much less sence to have it way out the back! I don't suppose more rear-end inertia or roll moment are high on any 911 driver 's wish list ;-)

Having said that, the Alpine (Renault) GTA has just this configuration and it is an absolutely excellent car to drive. They are not so good to own, I think. I have almost bought one on several occasions, but on every test drive, some bit of the car broke or fell off, at no fault of mine! And if you think that Porsche parts are expensive, just take a look at the price of anything on the GTA that is not out of the Renault parts bin...
 
I had a 1992 turbo look cab and there were 965 part numbers stamped in several places including the cup wheels which were stamped 965 SL Made in Italy.
Jeff
 
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