Ha, well yeah, but this is AFR so I'm relatively sure they know what they are talking about? Also, this is for full on racing engines that see 7k etc.
Not arguing but I mentioned this to a math head I work with and his response "I would have thought it was 0.27 ish" and he explained it was something about the constant "e" (2.71828) divided by 10.
Again, this is theoretical (bench racing) so that "disclaimer" was mentioned. I just found it pretty fascinating.
