Little History
I had recently installed a 120R in my 09 FLHX Ultra and have discovered that there is plenty of heat being generated from the motor even though I have had it professionally tuned. On its maiden voyage I put her through a 3000 mile road trip, 2 up with bags loaded from Texas up into New Mexico, Colorado, and Utah and then back into Texas where temps on the highway with the cruise set on 80 mph I saw engine temps on my HD in-dash gauge to read 255*-260* and when I would do 65 mph I saw temps hovering at 230*-235* and on average I saw temps in the area of 230* for basically all around riding providing I wasn’t doing any Interstate riding at 75 plus MPH along with the ambient temps outside in the low to mid 90’s. Texas and Utah was the most brutal when running on the interstate seeing those temps hovering right below the 260* slash on the gauge. I found myself watching the gauge all the time.
So I have been looking at the oil coolers that are available and trying to do all the reading on them and asking what I hoped were the right questions. It can be over whelming to try and figure out which system is the right one for me and one that will stand up for a lifetime of usage and abuse that the roads can dish out. There are the horizontal models the vertical models, I looked at the Jaggs system, Ultra-Cool system and the Oil Bud system, 2 of which has been highly discussed and reviewed and 1 of which had very little discussion.
The Ultra-cool which was the latest in which I had heard about works like a radiant heater with the cooling tubes running vertical, while the Jaggs tubes run horizontally and works more like a radiator on your car. Both run with the available fans to help cool the fluids when needed but if one chooses to go with the Jagg it could be installed without the use of a fan. I could only assume that the Ultra-Cool could be run without the Fan installed as well. However its design was to be used with a fan to kick on.
I had a Harley Cooler on my 06 Ultra that seemed to do quite a job in cooling the motor with just a download from Dynojet. It seemed to run 15*-20* cooler on average then my buddy’s temps who had gotten their bikes tuned and also running a cooler (brand I don’t recall). However the Harley Oil cooler wasn’t going to be an option here since I had so much trouble with the adapter constantly rotating when I was removing the oil filters as needed, also with the design and location of the hoses looking like an afterthought on location placement hooking up to the adapter.
I had the cooler on the bike for about 1.5 years with @ 20,000 miles on it before I took the oil cooling system off and got rid of the bike,( with no problems at all) however when I examined the cooler before I put it up for sale I noticed quite a bit of wear on the front face leading edge of the fins of the cooler where the fins were damaged (bent or folded over) as well as the paint had been blasted away in a circular pattern (this was apparently done from all the debris that the front tire was able to pick up and throw at it). Although the cooler worked just fine and this was no more than cosmetic it to had something to be considered when I was making a decision. Then after seeing and reading about coolers that have been subject to failures due to something on the road being right in the way of the back side of the front tire I was leery of this style. Then to add the addition of a fan on the unit if I was to go with the fan model was something that I would have to take in consideration. I am not sure that the charging system would be adequate for the additional fan, perhaps plenty however I do run a lot of electronics powered up when I’m on a trip and wasn’t sure I wanted another electrical component running all the time with the opportunity for failure.