A good dyno operator will run a break on cycle on the engine long before making any “pulls”. It’s actually the most controlled way to break an engine in. After it comes off the dyno, I consider it broken in.
That's the understanding I was getting reading between the lines. It's either the dyno or 500-1000 mile run but not both. Hope this is correct.
I’ve never done the 500-1000 mile malarkey. That’s written in auto manufacturers manuals and stuff but it makes no sense to me at all. If it’s a flat tappet, once the cam is broken in, load the engine a few times, heat cycle it a few times, then beat it like a red headed step child. If it’s a roller cam, fire it off, run a few heat cycles then do the same, beat on it like you will for the rest of its life. There’s no reason to “drive it easy” for 500-1000 miles.
