Quote:
Originally Posted by SkullWorks
I know that the North American Motorsport division of a company whose home town rhymes with poopgart, breaks in every motor under full load, the dyno operator and engineer explained to me that this was necessary for the best ring seal because the bore finish is so good that you have a limited amount of abrasion left in the bore with which to basically hone the rings to suit the bore, higher cylinder pressures push the top ring against the bore with more force to make the most of the incredibly limited amount of surface roughness to "seat the rings"
All of that having been said, DI motors are known to have significantly higher cylinder pressures at low RPM (easily notable by the increase in low end torque, cylinder pressure>piston>rod>crank>Torque>  )
So i have a distinct feeling that the engines will all break in just fine regardless of how they are broken in,
It is (atleast in my circles) common knowledge that engines broken in "HARD" have better compression and ring seal for the life of the motor...
This post didn't clarify anything incase you read this far and were wondering.. |
Even in the olden days for racecars, the thought was a car that was broken in fast, will be fast (make more power). There seems to be enough evidence with the ring seal bit to support it.