Posted 9/27/2023 11:26 (#10418352 - in reply to #10418059) Subject: RE: We used horses for thousands of years...
Milford, IL
Modern internal combustion gasoline engines generally make very slightly more horsepower as they 'wear in'. Obviously there is a point of diminishing returns and HP goes the other direction. A 50K mile mass produced engine will make slightly more power than it did new. Proper maintenance of course, non track use.