Thanks, Bong ... I did not initially notice where you are located ... after having spent a few years in Philippines, I can certainly understand why a better viscous clutch would be applicable.

The physics on this sort of thing are pretty simple - I had heard of someone modifying the vclutch to lock up earlier by adjusting the bimetallic portions, but thought one actually designed for a hotter climate would be much better.

Where are you located?

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George Stephenson
1991 350 SDL (200K and she ain't bent, yet)
former 2002 E320 4Matic Wagon - good car
former 1985 300 CD - great car
former 1981 300 TD - good car
former 1972 280 SEL - not so good car
a couple of those diesel Rabbits ...40-45 mpg