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Originally Posted by 23109VC
what is the basis for doing the low temp thermostat? i asked my indie mechanic and he said he would not do it as he thinks Porsche designed it right out of the box...he said unless it was a race engine he'd not do it.
i live in the San Diego area....you know what my weather is like.... nice year round. is there a reason why I would or would NOT benefit from this?
i am doing my waterpump in a couple weeks.
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There's lots of stuff not designed right with the M96 engine, right out of the box by Porsche. Not a good justification for choosing against the low temp thermostat. We have quite a few dealers that use these now over the stock thermostats and are very pleased with the extra cooling as measured on the gauge in most conditions.
Long story short, with the low temp thermostat you are getting full coolant flow at the same temperature where the factory thermostat is just opening. The full explanation can be found on our web site, or some of our previous posts in response to questions about the low temp thermostat.
When autocrossing, the car typically just sits there without airflow over the radiators between runs. Like with bumper to bumper traffic, you won't see the full benefit of the low temperature thermostat unless the fans are manually actuated to come on earlier. We're working on a fan controller to take over operation of the fans to help make use of the low temp thermostat in these situations.
. The reason im getting low temp thermostat is because i do Auto Cross about once month and the car get driven double as there are 2 drivers and temps tend to go up but when i went to willow springs with 2 drivers without much break was pushing it, so ill take all the cooling i can without putting 3rd radiator. 
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