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patkeefe patkeefe is offline
one of the great unwashed
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Join Date: Apr 2004
Location: Ringwood, NJ
Posts: 2,851
I have aviation cylinder head temp gauges on the turbo SC, 14mm ring sensors on the #2 and #5 cylinders. I have to look uo the temps I run when I get home...the car hasn't been driven for a year, so I forgot. They are under 300F, though. I also run water injection, a very slick system. Drops the inlet temperatures quite a bit between incoming air and entry to the mainfolds.

Also, I once melted a VW head when changing valve it too hot in the oven (back in my USAF machine shop days). There was a bad thermocouple in the oven. I estimated the head was at between 500 and 600F, and when I grabbed it from the oven, fins came off in my (asbestos gloved) hand.

I have a bunch of data posted for posterity somewhere on this board regarding this stuff. I would go out on a limb and speculate that if anyone gets a head that hot, it is the least of your problems.

Also, agree with can never get an electric fan to perform like an engine driven fan.
Patrick E. Keefe
78 SC
01 Boxster
Old 08-24-2009, 04:08 PM
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