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[Hoist!]

No way will that engine guard act like an oil cooler. You need efficient heat exchanger surface area to get adequate heat transfer. A piece of pipe will barely provide any additional heat transfer surface area for any any significant cooling impact. You will only gain additional oil capacity. Hoist!

[sadunbar]

No way will that engine guard act like an oil cooler. You need efficient heat exchanger surface area to get adequate heat transfer. A piece of pipe will barely provide any additional heat transfer surface area for any any significant cooling impact. You will only gain additional oil capacity. Hoist!

Now if you pipe your oil into each saddle bag and added about 6 gallons capacity, volume alone would gain a degree or two temperature drop   just kidding - Hoist is right - you need more surface area than a pipe provides to achieve any significant cooling effect.

Scott

[Chief]

No way will that engine guard act like an oil cooler. You need efficient heat exchanger surface area to get adequate heat transfer. A piece of pipe will barely provide any additional heat transfer surface area for any any significant cooling impact. You will only gain additional oil capacity. Hoist!

Ever heard of Roger Bourget? While I admit it is not as efficient as a finned heat exchanger with lots of surface area, any vessel that holds fluid will transfer heat. Like I said, I doubt some of the claims made as to it's efficiency, it will act as an oil cooler, just not a real efficient one.

A more effective solution would be to increase the surface area of the oil tank by adding more fins. I'm not sure you would want extra tank cooling if you're trying to ride in the winter, but it would be great in the summer.

[Hoist!]

Ever heard of Roger Bourget? While I admit it is not as efficient as a finned heat exchanger with lots of surface area, any vessel that holds fluid will transfer heat. Like I said, I doubt some of the claims made as to it's efficiency, it will act as an oil cooler, just not a real efficient one.

A more effective solution would be to increase the surface area of the oil tank by adding more fins. I'm not sure you would want extra tank cooling if you're trying to ride in the winter, but it would be great in the summer.

That's the point, it's not efficient at all. Of course heat is always transferred from anything at different temps. But you need a properly engineered component and adequate surface area. to call it a heat exchanger. From the little heat transfer you'll get from one fairly large diameter tube, I'd definitely not risk having my oil system in my crash bars.

Hoist!

[Chief]

That's the point, it's not efficient at all. Of course heat is always transferred from anything at different temps. But you need a properly engineered component and adequate surface area. to call it a heat exchanger. From the little heat transfer you'll get from one fairly large diameter tube, I'd definitely not risk having my oil system in my crash bars.

Hoist!

Someone did a real long post over on HD Forums. Here's a link if your're interested. I haven't done one, but IF it works as well as some claim, that would be nice. The link to the silvecrow website is in the post also. They are the ones I remember talking it up several years ago.

Crash Bar Oil Cooler Install

[miker]

Oil too cold won't fry the turkey...and in my business can cause "oil whip". Very bad on rotating equipment weighing several tons, makes for vibration. Hot is better than cold...the oil can take it as long as viscosity index is high enough.

Miker

[spydglide]

the oil can take it as long as viscosity index is high enough.

Miker

and what would that be for these V-twins?    spyder

[miker]

and what would that be for these V-twins?    spyder

150ish average. Alot depends on driving habits, environment, cost.  Check the site below. Sorry about the religious context, I am non-denominational, but the charts are good, showing astm test standards as it applies to most motor oils. I use mobil 1 v-twin 20-50w. This issue can be emotional for some folks.
Like opinions and a-holes, everyone has one(I hope), and this is just mine.


TheMotorOilSite.com

Miker

[leoniru]

Keep going guys, this is interesting talk. I'm kinda likin' the parallel oil cooler idea. My wish now would be for HD to redesign a retrofittable cooler with enough ADDITIONAL area AND incorporate the protective mesh OR relocate it, etc., etc.
Thought about the mudflap but sure didn't want to drill any holes in the fender. Probably could get one to stay on with the proper adhesive and surface prep.