Chemicalblue Posted February 23, 2008 Share Posted February 23, 2008 Do you have the highest output setting wired up though? Or are you running low speed only? It has its own temp sensor, it changes the speed of the fan depending on how high the temp is. I believe the controller is variable speed not just low or high. I am also using a Spal fan and a Afco alum radiator. Quote Link to comment Share on other sites More sharing options...
bjhines Posted February 23, 2008 Author Share Posted February 23, 2008 Rudy, Chemicalblue is not using the 3 wire(2 speed) Taurus fan. The Taurus fan draws only 17 amps on the low speed wire(235 WATTS). It draws nearly 40 amps on the high speed wire(550 WATTS). The absolute maximum current the Spal PWM can deal with is 30 amps(425 WATTS). Therefore the Spal PWM must only be used on the LOW speed wire. To put this in perspective, I spent ~$100 on an aftermarket 14" fan from Summit that only draws 10 amps(145 WATTS). Something else that should be noted is that 1. Fan CFM ratings(airflow) depend on the radiator they are mounted to(1 row vs 4 row). 2. Free airflow(low speed, high torque) current draw will be higher ... than the restrictive airflow(high speed, low tq) current draw. 3. Ultimately the CFM and current ratings given in Catalogs are useless for anything more than generalizations. 4. The Taurus fan beats the crap out of anything but the most expensive($450+) fans available. 5. The Taurus fan beats the crap out of most other fans ON THE LOW SPEED WIRE!!!! without resorting to the monstrous 40 amp current draw of the high speed wire. Quote Link to comment Share on other sites More sharing options...
rudypoochris Posted February 23, 2008 Share Posted February 23, 2008 Yes. Thank you for testing the amperage too by the way! I have my Taurus fan already mounted up, this controller thing has been in the back of my mind bugging me though. Quote Link to comment Share on other sites More sharing options...
Careless Posted February 24, 2008 Share Posted February 24, 2008 I found a master list of everything the highly desireable Taurus fan comes on. This would make a great JY master pull list. DORMAN PART NUMBER 620-101 so is this dorman aftermarket part equivalent to that of the factory issued rad fan setup? does it perform the same or is it "like" the original? cause this is 125 bucks! Quote Link to comment Share on other sites More sharing options...
bjhines Posted February 24, 2008 Author Share Posted February 24, 2008 Yes, It is the aftermarket replacement. It is the only affordable option other than the JY. I checked on the factory replacement fan. It is nearly $500. Quote Link to comment Share on other sites More sharing options...
pparaska Posted February 25, 2008 Share Posted February 25, 2008 bj, - those current draw numbers sound about right. I found something like 15amps @ ~12.5v on low, and ~35amps @~12.5v on high. There's a VF7 relay rated at 70amps - not sure its available. There are others though. See my (updated) post in Larry's thread: http://forums.hybridz.org/showthread.php?t=99700 Quote Link to comment Share on other sites More sharing options...
Darryl Dashiell Posted January 28, 2010 Share Posted January 28, 2010 I manufacture a radiator fan controller here in Southern California for a Datsun shop called Mikes Z Shop in Whittier. The owner's name is Mark and he has a web page at www.mikeszshop.com that has been purchasing my controllers for about a year. He has found that these controller work and has just about zero problems except when audio radio shops mis-wire the controller and it stops working. He has a lot of Z owners and other cars that were convert to an electic fan controlled by Auto Cool for best cooling in the summer and cars with after market AC systems. This controller is very simple and easy to install and you can mount it under the hood, under the dash, or in the trunk. It has a black knob on the front that you can control the operating temperature of your radiator. This first Auto Cool is a on off controller with an internal 30 amp relay. I am working on a pulse width modulated that is pure analog NOT A microprocess based controller. I will be having the printed cirucit board started in a few days. The prototype has been completed - now to get the package completed and into the market. Darryl Dashiell Radio Research, Ltd. 1-28-10 Quote Link to comment Share on other sites More sharing options...
Dan Juday Posted January 29, 2010 Share Posted January 29, 2010 Great Darryl, but why not make it to handle 40 amps so us guys with the Taurus fan can use it right out of the box? Quote Link to comment Share on other sites More sharing options...
hoov100 Posted January 29, 2010 Share Posted January 29, 2010 I'll stick with my $3, 70amp ford relay and my $2 three position switch.. Quote Link to comment Share on other sites More sharing options...
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