On a tangent, I have a car that gets too close to 250 and a laptop that does the same thing (its processor is at 224 degrees as I write this). I use ducting and oil cooling for the car, and recently came across the heat sink grease in making a change to the laptop.
What does that stuff do? Where do you put it in relation to your oil filter and that collar? Also, does that collar make a noticeable difference? It looked (to me) a lot like the K&N filter until I saw it in this engine bay (click for a larger image):
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Jack Olsen
1973 911 T (3.6) sunroof coupe
jackolsen@mediaone.net
[This message has been edited by JackOlsen (edited 06-03-2001).]