Rest assured you'll find the FCS cooling system makes a significant difference. My bike's Oil Temp now never goes over about 235* at most even in 90's temps climbing the 2 mile up-hill dirt road to my house (can't go very fast, 10-15 mph or so) which always raised the OT up a bit before I got to the house. I'm seeing 20-40* decrease in OT's, especially at low speeds of course. Typically 210-220* is what I'm seeing on 90's days in normal riding conditions. In cooler temps more like 200-210*.

 

I have a Triglide which runs significantly hotter than the average two wheeler. OT up around 270-300 deg not uncommon. I put on the FCS and OT stayed below 260 degrees even on the hottest days. Added a Jagg w/ fan assist and now combined with FCS, I don't see over 240 with a stock stage 1 map loaded. The engine is very happy now. With TTS loaded it runs no hotter than 230 degrees and that's only on days over 90 degrees. OBTW it was 109 for three days straight. 100 feels like a cold spell!

 

Wow that's some spectacular results! Those are some extreme temps you had going on there, yikes I'd be having a heart-attack nearing 300* routinely like that.

 

I haven't taken any readings yet but CHT must be significantly lower since the BS drop-cylinder Harley marketing gimmick doesn't kick in any more. That has to mean lower OT as well.

 

A year ago I got stuck in a bad traffic jam on I-70W in Denver at the I-25 junction. OT was over 300 deg the whole time. Went even higher on the climb toward the Eisenhower tunnel. I think I finally pulled it over when traffic would let me at Chief Joseph exit. OT was about 330 deg and it started running bad. When I got back to California, my FCS was waiting for me. Thank God!

 

I am still extremely happy with mine.

 

Yes, no way around it, the hotter the motor gets the oil temp's gotta climb right along with it. The oil actually does a surprising amount of the cooling in these motors (perhaps 40% or so?) - as it carries away the heat from the engine parts, so when the parts are HOT, the oil will go right with it.

That's why true cooling has to be part of a package of things: FCS fans plus an Oil Cooler along with Fuel management to avoid running too lean.

I monitored my "cooling quest" along each stage of my transition from a bone-stock 96" motor to what I have now (see signature below for details). By far the most significant factor in all these components of the "cooling package" has been the FCS fans. The Oil Cooler is of course the second most important and significant part of the package. I didn't see a very noticeable decrease in oil temps with just the Stage I, but I do know it's needed as these bikes run far too lean from the factory. Once I went to the oil cooler I did definitely see a decrease (as long as I was moving), but now with the final piece of the puzzle (the FCS fans) it's absolutely under control and heat is a thing of the past.

 

Holy cow, this thread is like the energizer bunny. Nice clean looking sled wachuko. I just finished up a batch of 60 and they are pretty much sold, gettin' harder to keep up with demand. Just got back from the local fireworks show, all I can say is unremarkable, I've put on better shows myself off the back of a 4 wheeler. I think a true sign of economic recovery is when the fireworks are good, wherever you are. Hope everyone had a great 4th, don't forget why we celebrate, independence and freedom, as much as the rest of the world hates us, they still envy us. We are the shiznit.

 

I agree as my setup is similar to yours with the exception of mine being a Stage II. Just got my invoice from Jason this morning, so hope to get them on the bike pretty soon. I'm not seeing over 230 now with the Jagg 10 row with the fan assist and the TTS tune. These fans can only be added insurance and are a good bang for the buck.

 

Seriously the day before leaving on our trip to Eureka Springs Arkansas I noticed a small box on my front porch and thought, I just paid the balance for my fans, there's no way they're here already!

Well they were and after about 20 minutes, installed and ready to go. I got all black and the finish is outstanding, they look like they belong.

The next morning loading the bike up with our stuff I noticed a nail in my rear tire, only 3000 miles on it! I called the local dealer and they said bring it in and we'll work you in as quickly as we can. Since I had just installed the fans the day before I did not get to ride and while heading to the dealer my power vision said my FHT was 248, well I turned the fans on and after being stuck in some traffic when I pulled up at the dealership it now said 228, I could not believe it! While waiting on my bike I told a fellow rider about the fans and my short but impressive experience with them and when I was getting ready to leave he said he would like to see how they looked, he was also impressed. I may have made a sale and didn't know it.

Now the test, while in Arkansas it turned nice and hot, 94 to 96 degrees. We were riding around the town and I had the fans running and my power vision showed a max FHT of 232 no matter what kind of traffic I was in!! I am thoroughly happy with the fans and would recommend them to anyone.

Very nicely done Jason, thank you!