[ebarker]

Originally Posted by squirrel

A one gallon engine is the Buick 231 cubic inch (3.8 liter) V6. This I can remember.

And a pint is a pound, the world 'round. This I can also remember

so you need to displace two gallons of water (462 cubic inches, which happens to be a 1960s Lincoln engine) to make a battery float (8 pints in a gallon, two gallons = 2 x 8 lbs/gal = 16 lbs), and you need to displace more than that for the rest of the weight of your system.

you do understand about cubic inches, I trust.....just multiply the height times the width times the length (assuming a rectangular box) and you get the volume in cubic inches of your box.

You are a veritable plethora of information. It never dawned on me until now that this particular Lincoln engine was twice the size of the Buick and was a gallon versus 2. we've got our selves a regular click and clack contender.

I just did a little punching in the calc and did the volume of 8 cylinders of 4 in bore and 4 in stroke and got 400 cu. I just had to try that out. back in the day the 4x4 happened frequently enough, like in a John Deere Model 40.