As I prepare to exit for the night, even though it’s way past when most shops have thrown down the wrenches and headed home, I can’t help but walk past the fax machine. Why? I’m waiting on dyno numbers. I’ve got a good chunk of an engine story written, and yet it’s still lacking, ‘cause I’m waiting on the dyno numbers. Sure, I know what kind of power it put out. But we gotta have the numbers, right? It got me thinking about some of the things I’ve heard said on this subject: “The dyno doesn’t lie,” is one. To which you may hear, “It all depends on the dyno operator.” Or “that shop” has a happy dyno. I’ve said a couple of times that you can’t drive an engine…does the same idea hold true for an engine on an engine dyno? Either way, are the results any less valid? In any case, I’ll be happy to get the numbers I’m waiting on—they’ll tell me a lot about this engine, it’s powerband and other characteristics, in addition to peak power numbers--which is what everyone pays attention to. All of this info is a critical part of an engine story, IMHO. But since there are naysayers, I ask the question: What do you think?