my 750 i bought has this oil cooler plate on it. i know this for sure is after market but i think its pulled from another honda motorcycle.
ive seen a whole line of honda motorcycles that have an oil cooler radiator on the frame behind the wheel with this oil cooler plate on the engine.
this is what mine looks like
![](http://i27.photobucket.com/albums/c163/xsmooth69x/DSCN1950-2.jpg)
i build custom PC and we pretty much do the same thing having a heat sink over the cpu die and circulating water over it that flows over the hot cpu diffusing the heat into the water then the water goes into a radiator with computer fans on it where the heat of the water is diffused over the radiator cooling the water in the radiator then circulating it obviously back into a radiator then back to the cpu or gpu or ram
the only thing i have a problem with is that if you trying to cool your oil at stop and go traffic you need to add a fan. the only way to optimally cool your oil is when you bike is moving when the cool air is going over the fins of the radiator. so pretty much only when your going fast.
and from what i get from water cooling computers is that its not only the air going over the radiator CFM (obviously the more is better) but how much total pressure is being exerted
so when you at a stop u need the air to move over the radiator but but but you cant put a fan straight on the radiator. you need a spacer/shroud maybe an inch between the fan and the radiator for the air to be able to diffuse
![](http://i27.photobucket.com/albums/c163/xsmooth69x/Untitled-4.png)
i think running a mutli fan rad is better leaving space for air to slip in around the fan when your going at speed instead of a cone style rad shroud with one big fan and using 1 big fan wont give you the total pressure of air through the rad even though the fan might be rated and moving a high amount of CFM
you cant decided or compare 2 fans just from the cfm. usually cfm is measure when mmh2o is at 0. that means the fan is tested in a open environment. now move that fan 6 feet from a wall or put something infront of it and the cfm fall dramatically. but knowing the total pressure from the fan with cfm