Looks good. Personally think it is a little bit of overkill. I have a 08, turned into a 107 with the JAGG, here in texas. Has never approached 230. JMO.

 

I think you've done a great job there and I would imagine your bases are covered. If you feel like you have to do more to keep things cool I would consider a heat sink.

there is another thread related to this, check out post #14

https://www.hdforums.com/forum/touri...-addition.html

 

You definitely get an "A" for effort but if you are THAT concerned with overheating then maybe an air cooled bike wasn't the best way to go.

 

I've had the Lenale since 07. Works great in stop and go traffic. Neither the wife nor i have noticed the heat on our legs. 105 degree day in stop and go and temp never went over 230 degree's by fairing mount gauge.

 

I don't think the OP's efforts are overkill at all, and I've engaged the cooler-fan project twice so far, failing both times. The first time I installed two computer fans on the outside of the cooler like the OP, but mine were deeper and contacted the fender when the forks were compressed. I also didn't make any attempts to waterproof and dustproof them like he did, so it will be interesting to see how that idea pans out. I would advise everyone mounting them outside the cooler to compress the forks completely to check for clearance!

A year or more later I tried again using two high-quality, thinner ball-bearing computer fans, inserting them inside the cooler--but water, heat, and/or dust caused them to fail in about six months. When they were working in the summer of '09 they did serve to slow the assent of oil temperatures when stationary, and I considered them a useful addition. Be advised that mine didn't stop the assent, just slowed it down. When they failed I didn't replace them, as I haven't really had a problem with oil temperatures on this bike, 230° being the highest I've seen in summer traffic.

Not long ago I rewired my PCV-AT switch to work with a relay, and the DTDP relay I used has a spare 12V connector that will give 12V either when the switch is on or off depending on how I connect it. I used DTDP instead of SPDT to leave open the possibility of adding cooler fans or possibly an engine fan. That means I can connect cooler fans to this relay and when I switch it on the PCV-AT toggles to a richer map and also turns on the fans. The problem has always been finding waterproof and dustproof computer fans, and although they do exist I couldn't find any available in reasonable quantities. I've been keeping tabs with Big Sky Fan for the past 2-3 years and Milan and I have shared experiences with the cooler-fan concept. He makes a cooler-fan kit and has been using waterproof computer fans for over a year now, so I checked-in with him recently about how well these fans are doing. He said he hadn't had any failures and is encouraged at this point in time. So, I will probably buy a pair from him and give this cooler-fan idea a third try, never wanting to say that I failed with anything. Like Curly Howard used to say, "If first you don't succeed, keep on suckin' 'til you do succeed." (If you don't know who Curly Howard is, go take a timeout in the corner of the classroom!)

I haven't considered an engine fan (HD or Lenale) since I have air-horns in that location and don't where I'd relocate them. I've also heard spotty reports on the reliability of both units.

 

I went with the oil bud cooler and it does everything that it is purported to do, including a 35 + degree drop in temp.

 

Any comparative feedback on the UltraCool Harley Oil Coolers?

 

Those are interesting mods, one suspects that the newer HD models are sure leaned out to the point of being mobile BBQ's! We've all got to send "thank you" cards to the EPA.
Here in Cali we're allowed to lane-share, and the HD premium oil cooler with the lines underneath has been more than enough for my Hog to keep its cool.

 

I did consider fender clearance during this process. Initially I set a protractor at 29.5 degrees (fork angle) and eyeballed it from the edge of the fender to the oil cooler cover to determine the approximate clearance. That's how I determined the fan thickness I could accomodate. Once completed, I verified my approximate calculation of the clearance by compressing the forks as you suggested. I ended up with .410 clearance at the closest point. (See attached thumbnails).

It's not that I am "THAT" concerned, but in my opinion anything you can do to provide additional cooling to an air-cooled engine is beneficial to the longevity of the engine. As far as air-cooled vs. water-cooled goes, if Harley made a water-cooled touring bike that was somewhat faithful to the Harley tradition, I'd definitely be interested.

Thanks for the support! Good luck with your future attempts, if any.

I briefly considered aftermarket coolers before doing this job but sometimes I just like experimenting myself. I get a lot of personal satisfaction out of designing and building stuff myself. Plus you can't beat the cost benefits... I've got less than $25 in my oil cooler modifications.

 

That's great but could you design something like this that fits recessed and is tucked up in the frame of the bike?
I wished I could, but... time and money and a shop, etc. etc, etc,,