automotive formulas 1

The formula is Pi X the radius squared Time the stroke X number of cylinders
so on a 350 Chevy
3.1417 X 4 X 3.48 X8 = 349859


formula for displacement

(BORE)X(BORE)X(STROKE)X(.7854)X(NUMBER OF CYLINDERS)

EXAMPLE: 4x4 x 3.48 x .7854 x 8= 349.848576 round up 350ci




(Area of cylinder) x (stroke of engine) x (number of cylinders)

so...

(bore size/2)^2 x pi x stroke x 4

(pi = 3.142)


Surface area of piston x length of stroke x number of cylinders
Surface area = Radius square x pi
radius = 1/2 diam



Take a single cylinder's dimensions...
Length of piston stroke (h) in cm.
Internal Radius (r) of cylinder in cm.

Volume (cc) = π x r² x h.
cc x 4 = Volume of the 4 cylinders.

(Simple example: Stroke = 15cm. Radius = 4cm.
3.142 x 4 x 4 x 15 = 754cc per cylinder.
754 x 4 = 3,016cc = A 3 Litre engine).