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Engine Size Cc
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Posted by: BABU Racers

How can I tell how many cc's an Apex engine is? I've checked around the cylinder and couldn't find anything it is liquid cooled with an A-one cylinder on it. Can anyone help Thank you

Posted by: marsrace2

I do not know of any way to tell just by looking at it.

Posted by: 59180

You can start by measuring the stroke distance piston moves up and down in the cylinder. You need a depth gauge on your caliper. either way must be a precise measurement. it will either be 39.2mm 42 or 45 unless it has something after market. The bore size should be either 40, 47, 50, 54 what ever it is you od the math 3.14x Radius squared and multiply that by the stoke in Centimeters. make sure you plug all the number in as CM not MM.
So a 50mm bore is 5cm which means the radius is 2.5cm.

hope that helps

Ozzie