Great write up. I appreciate seeing the photos as well.
I have been thinking of doing a different oil cooler on my limited but, wish someone would come up with a way to mount it away from the voltage regulator.

 

Very good documentation...where did you get the revised thermostat device from?

 

I'll have to make a phone call tomorrow to validate this model as a two pass. last time I spoke with Jagg, the cores with the ports on the same end were two pass, those with ports on opposite ends were single pass, either way, a great product.

 

You can get them at Wards Parts Werks here:

http://www.wardspartswerks.com/thermostats.html

While you are on the site, take a look at the FCS cooling system. I can recommend that product as well.

Jason is a forum sponsor and a veteran. He's good people.

 

Ordered mine today. Should be here in time for a weekend project.

 

Thanks Joe. When I get back from my trip, I'll send you a 140 stat for the Jagg adapter. The 160 is for the HD adapter but it will still be better than the OEM 185. Because of the stat retaining cap location, its a pain in the butt just to change the stat in the Jagg adapter but you can swap it next time you have it apart or change the oil.
Jason

 

Extra row or two makes little difference. Oil cooler only helps a bit when moving does nothing sitting.
But there are things you can do. Give this a look. I installed it first on my 2011 RGU then on my 2013 RGU . At first I figured it would end up being a few bucks more in the bad Idea box. Surprise it works.
http://bigskyfan.tripod.com/id10.html

 

I have steam radiators in my house. Thehy don't move and they RADIATE lots of heat.............

 

This is a very common misconception.
I have contact temperature probes at the oil pan pick up and return, and the cooler in and out ports. Sitting still an oil cooler doesn't do nothing, note the double negative. sitting still a Jagg 10 row still sheds about 1/3 of the heat that it does in motion(its pure assumption that the HD exchanger functions similarly), which is routinely 20-25 degrees. There are only a few heat transfer methods, conduction, convection, and radiation; a closed fluid to open air heat exchanger system such as an oil cooler uses all three. An oil cooler does not require motion to work, but it does work better with. I also put a huge shrouded fan on my oil cooler to test, max differential in/out of cooler is only 25 degrees, but it is constant, regardless of motion.

 

Jason,
I edited my post to correct the type of thermostat I purchased from you. I did order the WPW140 for the Zagg, so I have the correct one. I actually was thinking it was the 160 for some brain-dead reason, when in fact it was definately the 140.

Another ride today, about 50 miles, and I can tell the cooler is already doing better than the stock HD unit. I'll be interested to see what they tell you as you confirm whether or not this version is truly a dual pass. Thanks