Wouldn’t you round to the third digit then?
I get volume displacement = bore x pi x stroke x 8 cylinders. Using that and leaving some of the decimals on I get 364.849… If we are rounding to 3 significant figures, don’t we end up with 365 cubic inches?
I will admit it has been a long time since I have dealt with significant figures. I might not understand something here, but I thought we rounded the digit before our last significant one, not the actual last significant figure?
(bore^2)/4 x pi x stroke x 8 cylinders
369.8661716464000000
Shit, I used circumference in error.
I calculated the surface area of the cylinders, instead of volume.
And I suppose that ridiculous number of significant digits was for my benefit. The added zeros were a nice touch.
He should have found the accurate tolerance and then reported the mean with a confidence interval. Sporting a badge with:
369.8661716464000000 (369.58050577189600 , 370.15198442177700)
assuming 1 mil tolerance on stroke and bore. Now that’s a sweet badge.
Not an irrational number.
Now a badge with mean + confidence interval all as a proper fractions. Now that’s sweet!
Never give out publicly identifiable info on a forum 
. As we can see in another thread on here that can become problematic.
My screen name here is the same one I use on LX Forums.
I have a 2005 Magnum RT with a 419 cu.in. motor
Maybe it wasn’t you? The thread was displacement of the 6.1 L Hemi though, and writing style was similar.
BTW, I love wagons. Handling and economy of a sedan, but the utility of an SUV in most cases.
I read someplace that waste was about .045mL each shot. If you inject often enough that could really add up