Yup .5 BSFC and I'd call it a pig with a capital P-I-G.
While that IS true in most cases.........for most basic calculations a .5 brake is still a decent number to use. It gets you in the ball park
Your right Monte...if I was calculating fuel system requirements I would use .5 BSFC just to do the quick math.
I was suggesting that on the dyno .5 BSFC would be junk and I still stand by that. I have had my stuff go under .42 most of the time and highly prepped stuff go under .40 and I am by no means cutting edge.
I'm trying to find a dyno closer to me, but I will dyno my junk here in the next month or so and I will post it up. If the BSFC is near .5 I will stop and fix it. I can't for the life of me figure .5 being the "rule" for even bracket crap after about 1995 or so (maybe earlier).
