04-19-2012, 02:21 AM | #136 |
Join Date: Jul 2008
Location: Idaho
Posts: 25,054
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After finding the highest oil temperature my bike sustained without a front fender, I decided today to test a drilled fender. I drilled as many holes as I could, while still trying to maintain the structural integrity of the fender.
After mounting this fender, I actually removed it, and drilled more holes on the outside edges. Then I went for a ride on the freeway. Riding at 75-80 mph for about 30 miles, my oil temperature reached a high of 279 degrees. :roll: This oil temperature was 24 degrees higher than the 255 degrees I observed riding under similar conditions without a front fender, and I consider it unacceptable. If I didn't fully understand before, I certainly understand now. Maximum airflow is the key to keeping oil temperatures lowest. Althought the drilled fender looks well ventilated, it is undoubtedly more than 50 percent blocked. :roll: Here are a few photographs of my bike after the freeway run. I decided this was my final ride with this drilled front fender. After I arrived home, I cut a large square out of the fender, and installed some 1/4-inch, galvanized hardware cloth. I'll post a photograph of the modified fender later. The next time weather permits, I am going to make another freeway run, and this time I expect the high oil temperature will be much closer to 255 degrees than 279 degrees. Spud
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Spud "Never argue with an idiot. He will drag you down to his level, and beat you with experience." Mark Twain 2015 Zongshen ZS250GY-3 (RX3) 2006 Zongshen ZS200GY-2 (Sierra 200) 2005 Honda XR650L 2004 Honda CRF250X 1998 Kawasaki KDX220 Mods made to my Zongshen ZS200GY-2: http://www.chinariders.net/showthread.php?t=6894 |
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04-19-2012, 08:17 AM | #137 |
Join Date: May 2007
Location: Altamont, Kansas
Posts: 15,103
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Is the aluminum I sent too small? I will take that roll with to Kansas.
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04-19-2012, 08:20 AM | #138 |
Join Date: May 2007
Location: Altamont, Kansas
Posts: 15,103
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Is there some way to make some air scoops to direct more air over the cooler?
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You meet the nicest people on a Honda Clone. |
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04-19-2012, 11:50 AM | #139 | |
Join Date: Jul 2008
Location: Idaho
Posts: 25,054
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Quote:
Here are a few photographs of my modified fender with the 1/4" hardware cloth, and the excellent aluminum mesh you sent me. As always, thank you for your help, and your generosity. Spud
__________________
Spud "Never argue with an idiot. He will drag you down to his level, and beat you with experience." Mark Twain 2015 Zongshen ZS250GY-3 (RX3) 2006 Zongshen ZS200GY-2 (Sierra 200) 2005 Honda XR650L 2004 Honda CRF250X 1998 Kawasaki KDX220 Mods made to my Zongshen ZS200GY-2: http://www.chinariders.net/showthread.php?t=6894 |
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04-19-2012, 11:54 AM | #140 | |
Join Date: Jul 2008
Location: Idaho
Posts: 25,054
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Quote:
Spud
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Spud "Never argue with an idiot. He will drag you down to his level, and beat you with experience." Mark Twain 2015 Zongshen ZS250GY-3 (RX3) 2006 Zongshen ZS200GY-2 (Sierra 200) 2005 Honda XR650L 2004 Honda CRF250X 1998 Kawasaki KDX220 Mods made to my Zongshen ZS200GY-2: http://www.chinariders.net/showthread.php?t=6894 |
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04-19-2012, 12:56 PM | #141 |
Join Date: Jul 2008
Location: Idaho
Posts: 25,054
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Here's a photograph of the modified fender installed on my XR650L.
I'll take a freeway run as soon as weather permits. Spud
__________________
Spud "Never argue with an idiot. He will drag you down to his level, and beat you with experience." Mark Twain 2015 Zongshen ZS250GY-3 (RX3) 2006 Zongshen ZS200GY-2 (Sierra 200) 2005 Honda XR650L 2004 Honda CRF250X 1998 Kawasaki KDX220 Mods made to my Zongshen ZS200GY-2: http://www.chinariders.net/showthread.php?t=6894 |
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04-19-2012, 10:56 PM | #142 |
Join Date: Jul 2008
Location: Idaho
Posts: 25,054
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I got a little wet at one point, but I still made several, freeway test runs of my oil cooler today. My latest fender modification was successful. Riding the same stretch of freeway that yielded a high oil temperature of 279 degrees yesterday, my high oil temperature was 248 degrees today.
I also rode the same section of freeway that yielded a high oil temperature of 255 degrees without my front fender mounted. Today, with my modified fender mounted, I reached a high oil temperature of 253 degrees. Riding back home along this same stretch of freeway, I encountered very strong headwinds that kept my speed at 75 mph while riding wide-open-throttle. My high oil temperature under these conditions was 235 degrees. This oil cooler installation works very well. Other than the XR650R C/S sprocket, I think this is the best modification I have made to my XR650L. I am very pleased with the current configuration of my oil cooler; at this point I don't plan to make any further changes. I will certainly report if I encounter any difficulties with this installation. Another forum member promised to loan me his XRs Only temperature gauge next week. After riding a few miles with his oil dipstick thermometer, I will report the difference in temperature between my temperature probe located near the engine, and the oil dipstick thermometer located in the oil reservoir. Spud
__________________
Spud "Never argue with an idiot. He will drag you down to his level, and beat you with experience." Mark Twain 2015 Zongshen ZS250GY-3 (RX3) 2006 Zongshen ZS200GY-2 (Sierra 200) 2005 Honda XR650L 2004 Honda CRF250X 1998 Kawasaki KDX220 Mods made to my Zongshen ZS200GY-2: http://www.chinariders.net/showthread.php?t=6894 |
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04-20-2012, 12:11 AM | #143 |
Join Date: Mar 2009
Location: Southeastern Washington desert
Posts: 14,761
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Your TTO seems to be paying for itself already. I'm interested in the comparison.
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Happy to serve. |
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04-20-2012, 01:16 AM | #144 |
Join Date: Mar 2009
Location: Sardis, BC, Canada
Posts: 25,977
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Sounds like you've optimized it, Spud.
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Weldangrind "I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer |
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04-20-2012, 01:32 AM | #145 | |
Join Date: Jul 2008
Location: Idaho
Posts: 25,054
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Quote:
Spud
__________________
Spud "Never argue with an idiot. He will drag you down to his level, and beat you with experience." Mark Twain 2015 Zongshen ZS250GY-3 (RX3) 2006 Zongshen ZS200GY-2 (Sierra 200) 2005 Honda XR650L 2004 Honda CRF250X 1998 Kawasaki KDX220 Mods made to my Zongshen ZS200GY-2: http://www.chinariders.net/showthread.php?t=6894 |
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04-20-2012, 01:37 AM | #146 | |
Join Date: Jul 2008
Location: Idaho
Posts: 25,054
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Quote:
Spud
__________________
Spud "Never argue with an idiot. He will drag you down to his level, and beat you with experience." Mark Twain 2015 Zongshen ZS250GY-3 (RX3) 2006 Zongshen ZS200GY-2 (Sierra 200) 2005 Honda XR650L 2004 Honda CRF250X 1998 Kawasaki KDX220 Mods made to my Zongshen ZS200GY-2: http://www.chinariders.net/showthread.php?t=6894 |
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04-20-2012, 02:03 AM | #147 |
Join Date: Mar 2009
Location: Sardis, BC, Canada
Posts: 25,977
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Are you planning on a fan now?
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Weldangrind "I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer |
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04-20-2012, 02:24 AM | #148 |
Join Date: Jul 2008
Location: Idaho
Posts: 25,054
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I don't think I need a fan, Weld. This oil cooler dissipates heat very well, even when stationary. If you are moving even slowly, the heat transfer increases. This oil cooler is just about the perfect size for the XR650L; I think I found a winner!
Spud
__________________
Spud "Never argue with an idiot. He will drag you down to his level, and beat you with experience." Mark Twain 2015 Zongshen ZS250GY-3 (RX3) 2006 Zongshen ZS200GY-2 (Sierra 200) 2005 Honda XR650L 2004 Honda CRF250X 1998 Kawasaki KDX220 Mods made to my Zongshen ZS200GY-2: http://www.chinariders.net/showthread.php?t=6894 |
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04-20-2012, 10:34 AM | #149 |
Join Date: Mar 2009
Location: Sardis, BC, Canada
Posts: 25,977
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What was the original application of the cooler?
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Weldangrind "I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer |
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04-20-2012, 11:14 AM | #150 |
Join Date: Mar 2009
Location: Southeastern Washington desert
Posts: 14,761
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I'm now thinking of getting a TTO for my oil or my coolant on the YZ. Although I've never heard of anyone doing this on the TT forums...
Looks like cheap insurance that's for sure. I WISH I had a cooler and gauge on my little 250 back in San Francisco. :roll:
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