Quote:
Originally Posted by davids2toys
Ed,
This sounds like a very cool unit. I went on the Hollister site but could not find this controller. Do you have a model #?
Dave
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Apologies for the late response Dave. Here is a link to their stuff, =>
Fan Controller. This particular unit was a special unit they built for me and then productized it for general resale.
The feature set and design is very attractive. It uses a Meziere 50 or 55 gal (forgot which) per minute electric water pump and a 5000 cfm MK VIII fan. When you start the car both the water pump and the fan get a soft start so you don't overload your electrical system. There is no thermostat! In the top radiator hose there is a temperature sensor that measures the temperature of the coolant leaving the engine. You set your target temperature and the system provides a closed loop control of engine temperature by seamlessly raising and lowering both the pump and fan speeds to maintain the target temperature you have selected. At highway speed the fan shuts down.
When you park the car the unit will continue to run both the fan and the water pump for a minute to a minute and a half slowly but uniformly cooling the engine down. It is a very nice package both in terms of cooling capacity and also in terms of nice touches like the short run on period after you shut off the engine.
Ask for Dave at Hollister Road Co. He is super easy to communicate with and helpful beyond your expectations. The phone number is 713-937-0387.
Almost forgot, when you remove the thermostat and the obstruction it represented in terms of coolant flow it is stunning how much more heat energy your cooling system can sink away.
Ed
p.s. The 85A fan only controller is listed as out of stock but I believe the 125A is still available. Dave should be able to give you an availability on the fan only controller if that is the route you choose to go.