When is an engine fully run in? As in max power/economy?

[freebeard]

I'm not partial to red cars myself, but...


ecomodder.com: Honda Insight Tail Extension Project from 2010

See also Julian Edgar: www.autospeed.com: Project Honda Insight, Part 1 � Introduction and www.hotcars.com: HotCars Explains: How To Improve Your Car’s Aerodynamic Straightline Stability



If you're not familiar with Julian Edgar's work at Autospeed, he posted articles on making car chassis from cardboard and testing space frame design with soldered wire models. Interesting stuff.

[Logic]

Originally Posted by freebeard

I'm not partial to red cars myself, but...

"My car's faster than your car because mine's a red one!"

[freebeard]

The exception [for me] is Koral Rot.



The first time I ever rode in a Beetle was in 1958/ It was a Koral Rot sunroof car, open on the Oregon Coast in the sunshine.

[aerohead]

A decade or so ago, I read an online article ( Ford Motor Company engineers ) which stated that new car engines were already broke in, and if any 'break-in' was mentioned by the manufacturer, it would actually have to do with the ring-and-pinion gears in the differential. It revolved around some issue with micro-polishing of the mating surfaces.
Computer-Aided-Machining and robotics are so good today that, manufacturers hardly inspect more than a couple of engines randomly, out of thousands assembled daily.