BioFarmer93
OPEC Hater
I think I may have slipped a cog in my brain... I was checking cylinder bores with a snap gauge a few minutes ago and grabbed the Haynes manual to see if they were still in the ballpark. I noted that bore and stroke are square (4.11" x 4.11"). I decided to see for myself whether our 7.3L engines are closer to 444 cu.in. or 445 cu.in., so I did the math... Pi x Radius squared, gives area.. So, half of 4.11" is 2.055". Now square that- (2.055" x 2.055") = 4.223025", right? Pi is 3.14159, and the bore's radius squared is 4.223025, right? So then, 3.14159 x 4.223025" = 13.267" area, right so far? The stroke is 4.11", so 4.11" x 13.267" = 54.527 cu. in. per cylinder, right? We have 8 of those, so 54.527 x 8 = 436.216... Every time. I know I have to be doing something wrong, but the calculation is a simple one and it's defying me. Anybody see anything obvious where I'm screwing up??