02-12-2009, 10:25 AM
|
|
CC Member
|
|
|
Join Date: Apr 2007
Cobra Make, Engine: # 757 ERA 427 SC , 482 Al. big block
Posts: 896
|
|
Not Ranked
To add to what has been said .... a friend of mine who was involved with NASCAR back in the late 60`s said the problem with the C/O was in the upper rpm range . At sustained high rpm , the bearings would fail ... which from the other posts makes sense . He claimed on the shorter tracks where they didn`t stay at max rpm as long , the C/O worked fine . When the S/O came along , he said it allowed them to run higher rpm for longer periods without bearing failures .
|
Threaded Mode
