Want to try a low temp oil thermostat
Supposedly the stock thermostat opens at 180 degrees. At what temperature do you have your thermostats set to open? My problem isn't that my engine runs too hot, it doesn't even get to 170 degrees in cooler weather. The morning temps here are in the 50's, afternoon in the 70's. I can ride the 11 miles to work in the morning and the temp gauge never registers. The gauge starts at 170 degrees. I'm kind of wondering if the thermostat is stuck open. By the way, Jagg says that a thermostat isn't necessary.
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Outstanding HDF Member
Joined: Jan 2010
Posts: 2,916
Likes: 31
From: earth
Supposedly the stock thermostat opens at 180 degrees. At what temperature do you have your thermostats set to open? My problem isn't that my engine runs too hot, it doesn't even get to 170 degrees in cooler weather. The morning temps here are in the 50's, afternoon in the 70's. I can ride the 11 miles to work in the morning and the temp gauge never registers. The gauge starts at 170 degrees. I'm kind of wondering if the thermostat is stuck open. By the way, Jagg says that a thermostat isn't necessary.
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Outstanding HDF Member
Joined: Jan 2010
Posts: 2,916
Likes: 31
From: earth
I called Ultra Cool, their original release used a Jagg thermostat adapter and the thermal switch for the fan was mounted in the pan, so the cold thermostat will work in this earlier version. The updated version of the Ultra Cool system, moves the fan switch to the adapter and eliminates the thermostat. I communicated with another member about Ultra Cool and I believe a colder fan switch will greatly improve the performance of their product, much the same way the cold thermostat works, especially since they moved the switch to the adapter housing. Why let your oil get hot and then start trying to cool it back down? It's so much easier to just keep it cooler in the first place, by directing oil to the heat exchanger and turning on the fan at lower temp. I set my fan to come on when the thermostat starts directing oil to the cooler, for me thats about 195F pan temp. My fan doesn't cycle on and off creating a constant unnecessary confirmation that the system works, once it comes on it stays on. This year my oil temp never broke 215F even on the summer NC 100 degree days (no crazy enriched tune, stock near stoich A/F). Out of respect to the few members who did respond, I'm going to terminate my offer this weekend so I can get to the post office and get their thermostats to them. This aint no hocus pocus snake oil BS, it works.
Seasoned HDF Member
Joined: Jun 2006
Posts: 28,514
Likes: 3,951
From: Vermont
I called Ultra Cool, their original release used a Jagg thermostat adapter and the thermal switch for the fan was mounted in the pan, so the cold thermostat will work in this earlier version. The updated version of the Ultra Cool system, moves the fan switch to the adapter and eliminates the thermostat. I communicated with another member about Ultra Cool and I believe a colder fan switch will greatly improve the performance of their product, much the same way the cold thermostat works, especially since they moved the switch to the adapter housing. Why let your oil get hot and then start trying to cool it back down? It's so much easier to just keep it cooler in the first place, by directing oil to the heat exchanger and turning on the fan at lower temp. I set my fan to come on when the thermostat starts directing oil to the cooler, for me thats about 195F pan temp. My fan doesn't cycle on and off creating a constant unnecessary confirmation that the system works, once it comes on it stays on. This year my oil temp never broke 215F even on the summer NC 100 degree days (no crazy enriched tune, stock near stoich A/F). Out of respect to the few members who did respond, I'm going to terminate my offer this weekend so I can get to the post office and get their thermostats to them. This aint no hocus pocus snake oil BS, it works.
Road Warrior
Joined: May 2010
Posts: 1,294
Likes: 1
From: South FL
To add a pic inside the message, the image file has to be already "alive" on the Internet.
You can upload any image to any free photo albums on the net, after that copy the link (URL) of that image, then click on icon "insert image" to paste the link. Voila!
Tourer
Joined: Mar 2012
Posts: 335
Likes: 1
From: GA
Did you ever get the input your were looking for on these. I have a 2012 Street Glide that I am just starting to modify. I am always interested in parts that will make it run better and last.
Also wondering if you ever got all your testers?
Thanks
Glenn
Also wondering if you ever got all your testers?
Thanks
Glenn
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Outstanding HDF Member
Joined: Jan 2010
Posts: 2,916
Likes: 31
From: earth
Not much feedback from the testers yet, but it has only been about 6 months. Thats ok, I know it works, I was just looking for some independant testimonials to support the cause.
Road Captain
Joined: Jan 2009
Posts: 739
Likes: 2
From: St. Louis
I'm one of the 'testers' that fabrik8r 'recruited'. I've seen as much as a 26-30 degree drop in sump temperatures with the new thermostat. It's a great addition for those with oil coolers that will accept it. I haven't tested it in the heat of Summer, yet, but I'm expecting a similar drop in pan temps. (maybe a little less, we'll see) If you're still able to aquire one of these, I highly recommend it.
Last edited by Gearhead3; May 4, 2012 at 09:35 PM.
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Thread Starter
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Outstanding HDF Member
Joined: Jan 2010
Posts: 2,916
Likes: 31
From: earth
I'm one of the 'testers' that fabrik8r 'recruited'. I've seen as much as a 26-30 degree drop in sump temperatures with the new thermostat. It's a great addition for those with oil coolers that will accept the it. I haven't tested it in the heat of Summer, yet, but I'm expecting a similar drop in pan temps. (maybe a little less, we'll see) If you're still able to aquire one of these, I highly recommend it.
Road Warrior
Joined: Sep 2011
Posts: 1,308
Likes: 3
From: Central Texas
What oil coolers does you thermostat work on? I need all the cooling I can get my hands on here in central Texas ... months on end with triple digit temps. I am on your list for your cooling fan system.