03-17-2016, 02:15 PM
Good post, Best Standard (strewth, I nearly used the initials until I saw how that would look 
). I have never considered the oil tank on my '61 Bonnie to be an oil cooler but you're right, it is. Case of not seeing the forest for the trees, I guess. However, the CB is a much more refined beast than the old air (and oil) cooled vertical twin. I think the only way to tackle the possibility of removing the oil cooler from the air stream, or reducing the size of the cooler, would require a lot of precise temperature readings at critical points on and in the engine over a broad range of operating and ambient conditions, and then gradually reducing the efficiency of the oil cooler while continuing to monitor those temperatures. If, for instance, you removed the cooler completely from the loop (easy) and there was no significant temperature variation from 100% efficiency then no problem, ditch the cooler. But, as the OP "imagined", this would be extremely unlikely. Perhaps Tomas has done some work in this area. I'd like to see it.
Cheers
). I have never considered the oil tank on my '61 Bonnie to be an oil cooler but you're right, it is. Case of not seeing the forest for the trees, I guess. However, the CB is a much more refined beast than the old air (and oil) cooled vertical twin. I think the only way to tackle the possibility of removing the oil cooler from the air stream, or reducing the size of the cooler, would require a lot of precise temperature readings at critical points on and in the engine over a broad range of operating and ambient conditions, and then gradually reducing the efficiency of the oil cooler while continuing to monitor those temperatures. If, for instance, you removed the cooler completely from the loop (easy) and there was no significant temperature variation from 100% efficiency then no problem, ditch the cooler. But, as the OP "imagined", this would be extremely unlikely. Perhaps Tomas has done some work in this area. I'd like to see it. Cheers
