Engine Cooling Test Data
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Elite HDF Member
Joined: Nov 2010
Posts: 3,846
Likes: 171
From: Simi Valley, CA
Nice job, you definately packaged the results nicely. Don't know if you are interested, but I would be curious to see the results of the same test running only the cooler fans, and one running only the parade fan. I never monitored my CHTs, so it would also be interesting to see the CHT relationship to oil temps. Again very nice project, you did a great job.
Similar testing of only the oil cooler fans is planned but I'm not sure when I'll get around to it.
As far as the relationship between cylinder head temps and oil temps, I'd think that the cylinder head temps have a much greater effect on oil temps than oil temps would have on cylinder head temps. And I have no plans to test that theory.
Road Master
Joined: Jan 2011
Posts: 755
Likes: 5
From: Tallahassee, FL/Blue Ridge, GA
My understanding is that Harley's early testing with the Twin Cam bore this out, as well.
Grand HDF Member
Joined: Jun 2007
Posts: 4,598
Likes: 421
From: Lansing mi
This latest test was with only the parade fan.
Similar testing of only the oil cooler fans is planned but I'm not sure when I'll get around to it.
As far as the relationship between cylinder head temps and oil temps, I'd think that the cylinder head temps have a much greater effect on oil temps than oil temps would have on cylinder head temps. And I have no plans to test that theory.
Similar testing of only the oil cooler fans is planned but I'm not sure when I'll get around to it.
As far as the relationship between cylinder head temps and oil temps, I'd think that the cylinder head temps have a much greater effect on oil temps than oil temps would have on cylinder head temps. And I have no plans to test that theory.
Road Captain
Joined: Oct 2010
Posts: 683
Likes: 3
From: Florida
Thanks for the report!
Thanks for the report, great data. I'm amazed by the replies that seem to infer that 3k rpms or testing with the bike moving have any relavence to the Lenale Fan test. Do they even know what the fan was designed for ?
Road Captain
Joined: Oct 2010
Posts: 683
Likes: 3
From: Florida
LenaleEngineering has a legitament store on Ebay.
http://stores.ebay.com/LeNale-Harley-Cooling-Systems
Grand HDF Member
Joined: Jun 2007
Posts: 4,598
Likes: 421
From: Lansing mi
Last Summer we got stuck in heavy traffic on a hot day, I was wishing I had one then. I would assume on a hot day like 90 deg it wouldn't cool down as much, but I think it would still help a lot when you cant move the bike in traffic.
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Road Captain
Joined: Oct 2010
Posts: 683
Likes: 3
From: Florida
Hey Guy
Yep I live down in Florida and I didn't have fried thighs very long before I put both an oil cooler and the Lenale Fan on. It really blows some hot air away from the heads area. It doesn't burn my knee, but my thighs don't burn as bad as they did before I got it. On a dresser (like yours) it hooks up to the dash accessory switch which is great. But on on Dyna it can be a bit awkward to reach the switch on the fan with my right hand (while my left if on clutch) in slow rolling traffic where you don't stop enough to put it in neutral. I sometimes end up leaving it on longer than necessary to avoid this. I plan to put a waterproof toggle on the right side of my bars to aleviate this.
Later...
Last edited by R_W_B; Feb 2, 2011 at 06:10 PM.
Grand HDF Member
Joined: Jun 2007
Posts: 4,598
Likes: 421
From: Lansing mi
Good to hear from ya on the Dyna forum again (edit-, opps didn't realize this thread ain't on the Dyna forum). How you liken that Road King. Got that nice smooth profiling ride does it?
Yep I live down in Florida and I didn't have fried thighs very long before I put both an oil cooler and the Lenale Fan on. It really blows some hot air away from the heads area. It doesn't burn my knee, but my thighs don't burn as bad as they did before I got it. On a dresser (like yours) it hooks up to the dash accessory switch which is great. But on on Dyna it can be a bit awkward to reach the switch on the fan with my right hand (while my left if on clutch) in slow rolling traffic where you don't stop enough to put it in neutral. I sometimes end up leaving it on longer than necessary to avoid this. I plan to put a waterproof toggle on the right side of my bars to aleviate this.
Later...
Yep I live down in Florida and I didn't have fried thighs very long before I put both an oil cooler and the Lenale Fan on. It really blows some hot air away from the heads area. It doesn't burn my knee, but my thighs don't burn as bad as they did before I got it. On a dresser (like yours) it hooks up to the dash accessory switch which is great. But on on Dyna it can be a bit awkward to reach the switch on the fan with my right hand (while my left if on clutch) in slow rolling traffic where you don't stop enough to put it in neutral. I sometimes end up leaving it on longer than necessary to avoid this. I plan to put a waterproof toggle on the right side of my bars to aleviate this.
Later...
I won't know until April how much I like the way it rides up here in Michigan. I was going to wait a few more years before I got a King but that dam Motor vibration in my FXDC drove me nuts. I came so very very close to buying a Polaris bike but I just couldn't pull my self away from owning a Harley.
When I do get around to buying a fan, I'm not 100% sure if I will hook it to the accessory switch or not. I haven't looked in to that yet.