There is a thread started by JC You in the forum dated 09-21-2008, 09:45 AM about bearing spacers and oiling.
Quote: "I did some bearing testing on a special rig at Ford about 4 years ago and was amazed at the RAPID INCREASE in bearing temperature from just going from 1000 crankshaft rpm to 3000 crankshaft rpm.
We are talking a lot of heat that the bearing has to carry away quickly. A larger bearing diameter means more heat at the bearing." (so about 2004 time frame, 12 years ago)
In Mike's case he would be 7500+ rpm initially and go from there so you can see that lubrication and Heat is a major concern for his efforts.
Tom V.
ps Our rig would have been dangerous to spin at higher than 3000 crank rpm in a open cell with engineers monitoring data. The physics stays the same.
__________________
"Engineers do stuff for reasons" Tom Vaught
Despite small distractions, there are those who will go Forward, Learning, Sharing Knowledge, Doing what they can to help others move forward.
|