Pic of inside a 911-6 shroud

[verbeekb]

Hi Wally,

I am somewhat puzzled now as to its exact function/operation now. But there is a cover missing in this picture. The cover is similar to the earlier version (pre-964) except that it has no vanes attached to it. The plastic fan has a 928 603 *** ** (I forgot the rest) part number which places it in the generator/alternator parts category, whereas the rest of the cooling fan parts are all in the 106 (cooling) category. This fan was first used on the 959, which had watercooled heads/aircooled cylinders, and looking at it, it gets air from the front (!) .. are you using this one on a type4? These housings tend to be somewhat deeper, but it could just be the idea, I never really measured them up or anything. Thanks for the pic!

Brian

I came back and uploaded a file called 964.bmp but I can't figure out so fast what I'm doing wrong.

[Wally]

Originally Posted by verbeekb

Hi Wally,

.. are you using this one on a type4? These housings tend to be somewhat deeper, but it could just be the idea, ...

Yes, its on the engine that I am assembling right now with a BAS shroud in which it fits just nicely. This engine will also have the 100mm 964 Nikasils, 76,4mm stroke and full DTA programmable injection with Jenvey 48mm Throttle bodys. I hope to have some more pics of the set-up next week-end and will log head temps as the engine will run (if...).

Greetings,
Walter

[verbeekb]

hmmmm .. *perfect* geometry there .. 127mm rods too?

[Wally]

Nah, it seemed that the short 127mm rods were only used in the 964 by Porsche because they otherwise had a engine-width problem...
All serieus tuners of 964 engines try all sorts of desperate measures to lengthen the rods to get a better (read higher) rod ratio (sorry).
I tried to keep it cheap and used lightenend stock 2 liter rods, converted to 23mm piston pins. Its now about the same width as a stock 2 liter type 4 .

Greetings,
Walter