Water Cooled 3.4L in an '87
08-07-2001, 10:02 PM
#16
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Richard!
Where can I get more info on supercharging my 911? I am doing this to a truly hopped up engine for my '59 Bugeye so why not both!?! I didn't realize it was an option, I know that supercharging (within reason) doesn't harm engines and can produce major gains in HP! If anyone knows where the info let me know!
Where can I get more info on supercharging my 911? I am doing this to a truly hopped up engine for my '59 Bugeye so why not both!?! I didn't realize it was an option, I know that supercharging (within reason) doesn't harm engines and can produce major gains in HP! If anyone knows where the info let me know!
08-07-2001, 10:55 PM
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Hi Eurosport,
Try this link:
http://www.turboperformance.com/
(TPC designed/installed the supercharger featured in the most recent Excellence magazine)
Looked at Supercharging of Knoxville's add in Excellence--apparently, they don't have a web-site. Their phone # is 423-842-9556, e-mail = SoKporsche@chattanooga.net
Try this link:
http://www.turboperformance.com/
(TPC designed/installed the supercharger featured in the most recent Excellence magazine)
Looked at Supercharging of Knoxville's add in Excellence--apparently, they don't have a web-site. Their phone # is 423-842-9556, e-mail = SoKporsche@chattanooga.net
08-08-2001, 02:57 AM
#18
Rich, indeed the first water cooled heads were put on the 935/78 moby dick. These were of the individual single cylinder variety. Basically six individual heads with water jackets. The cylinders on that car were air cooled. That engine variation of the 935 engine but with twin turbos. It still was very much an evolution of an air cooled flat six. That engine was modified for the 956, then 962, then the GT1 which used 2 3 cylinder heads like the 959, and finally the GT3 and 996 turbo. The water cooled 996 carrera 3.4 engine is a completely different design based on the boxster engine. Unlike the 911/930/964/993/959/934/935/956/962/GT2/GT1/GT3/996turbo engines where there are two individual crankcase halves that have spigots where the cylinders slide into, the standard carrera/boxster engines are two halves with the cylinders cast into them. That 3.4 in a conversion situation is better suited to a boxster and even then there is a lot of work. I know because I have a friend who is doing it. The 3.4 liter carrera engine has almost nothing in common design-wise with the 996 turbo and GT3 engines which are based on the air cooled engines of the past. I am not surprised that the factory still uses 993/964/911 crankcase halves on the new motors. It is a time proven design that has stood the test of time. I was surprised when I first looked at a GT3 outside of the car. At first it resembled a 996 engine, but on closer inspection I noticed the 993/964/911 style crankcase. I guess Hans Mezger and Ferdinand Piech really got it right when they designed the original flat six considering those GT3/GT3cup/GT3RS are basically an air cooled flat six bottom with water cooled pistons and heads put on them. So parts of the air cooled flat six still live. But only on the the race cars and turbos. Sorry for the long post, but I love Porsche history. 
