Quote:
Originally Posted by SenorFunkyPants
From page 1 of this thread.
Compare this set of bearings.....
With this set of bearings:
       
Set 1 is from a supercharged S65 stroker motor after after 24,000 miles.
Set 2: is from a stock 2008 S65 engine with 30000 Miles.
Both sets show upper bearing wear caused during the combustion cycle.
What stands out is that the supercharged motor shows far less wear than the stock car...this is surely contrary to expected as the increase in CR and HP should cause significantly higher loads on the bearings during the combustion cycle of the supercharged motor. |
Unfortunately the bearings on the supercharged motor been discarded, and the data recording the individual journal sizes before they were machined has been lost.
But I say this with absolute certainty about that motor: it never saw anything less than 91 octane...EVER!