911 Cooling Shrouds - Improving Internal Air Distribution

[Zman]

Wallie,

How's it coming on the testing. I saw a post 4/29, but didn't know if you picked up any good ideas fromt he show. I am a big fan of the DTM, but love the look and sound of the 911 style. I have a sharpe and a bernie bergman and the sharpe cools the best, I think it is because the bergman spins so fast. Anyway are you thinking of making some of these for sale? I am interested.

[Wally]

Originally Posted by Zman

Wallie,

How's it coming on the testing. I saw a post 4/29, but didn't know if you picked up any good ideas fromt he show.

Show? What show you mean?
Anyways, all worked out very well, but I am not intending to make any for thrid parties as the work would never pay for itself and I then I would also have to maken them 'nice' and idiot-proof and I really am not into that. I have enoygh work on my own projects, which is a lot more rewarding ;-)
It actually turned out more easy than I thought, but you need to find out what mods work and which don't...

[pantswagen]

may i share my idea of
-having the shroud in 2 halves
-split on the same line as the case
-simply bolted together

-so, you can incorporate the front lower tins into it - for type one

-plus you could also incorporate a re-bate so it fits over the fan ring-snug

[Wally]

I think its a very good idea. I actually was thinking of eliminating the shroud-part over the top casing house as well as it doesn't have a function and only disturbs air-flow.

I only don't know the meaning of the english word 're-bate'? Coul you eleborate?

Tnx,
Walter

[pantswagen]

i was talking out of my arse, as
-i just remembered i machined the stock rebate off the fan ring

-what i meant was - the sock porsche ringhas a lip around it
-if the shroud was in half, it could clamp behind=total seal

-i was having a play with mine today, the fit to the heads is rubbish
-i like what you mean about keeping them low to the case, plus driving the air between the barrels seems logical

-i was even thinking about fitting the oil cooler-the stock one on the centreline, and ducting it out of the bulk ehead tin -like stock 911

-i just want to get my van back and get the engine in!