ROUND Tubing vs. OVAL Tubing Sizes
	Tubing OD	Area sq/in		Oval size	Actual size	Area sq/in
	5.000	19.635	=	5.00	3.25" x 6"	17.233
	4.000	12.566	=	4.00	2.75" x 4.625"	11.096
	3.500	9.621	=	3.50	2.5" x 4"	8.659
	3.000	7.069	=	3.00	2.25" x 3.5"	6.789
	2.500	4.909	=	2.50	1.75" x 3"	4.593
	To compensate for wall drag, upsizing will be needed.
		16ga Inside dimensions
	Tubing ID	Area sq/in		Oval size	Actual ID size	Area sq/in
	4.875	18.666	=	5.00	3.125" x 5.875"	16.264
	3.875	11.793	=	4.00	2.625" x 4.5"	10.334
	3.375	8.946	=	3.50	2.375" x 3.875"	7.993
	2.875	6.492	=	3.00	2.125" x 3.375"	6.203
	2.375	4.430	=	2.50	1.625" x 2.875"	4.105
	Courtesy of
	Automotive Component Engineering
		www.powerbyace.com
						5/20/2012