Cage rule book?

Boss_302 · 04-19-2014, 03:42 PM

SCCA

C. Minimum tubing sizes for (all Showroom Stock, Touring and
Improved Touring Category automobiles registered after June
1, 1994) for all required roll cage elements (All dimensions in
inches):
Up to 1500 lbs 1.375 x .095 DOM / Seamless / Alloy
1501-2200 lbs 1.500 x .095 DOM / Seamless / Alloy
or 1.500 x .120 ERW
2201-3000 lbs 1.500 x .120 DOM / Seamless / Alloy
1.625 x .120 DOM / Seamless / Alloy
1.750 x .095 DOM / Seamless / Alloy
or 1.750 x .120 ERW
(American Sedans may construct to these
specifications regardless of weight.)

3001-4000 lbs 1.750 x .120 DOM / Seamless / Alloy - No
ERW
Over 4000 lbs 2.000 x .120 DOM / Seamless / Alloy - No
ERW
Main hoop: 4 bends maximum, totaling 180 degrees ± 10
degrees.
Front hoop: 4 bends maximum or Front downtubes: 2 bends
maximum.
Rear hoop supports: No bends.
If any of the above bend requirements cannot be met, all
components of the roll cage shall be fabricated from the tubing
size(s) listed for the next heavier category of automobiles.
D. For purposes of determining tubing sizes, the vehicle weight
is as raced without fuel and driver. The minus tolerance for
wall thickness should not be less than .010" below the nominal
thickness. Improved Touring roll cage tubing sizes are to be
calculated based on the published vehicle weight minus 180
lbs.
E. An inspection hole at least 3/16 inch diameter shall be drilled
in a non-critical area of all tubes with a specified size to
facilitate verification of wall thickness.

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04-19-2014, 03:42 PM	#1 (permalink)
Boss_302 Base Member Join Date: Feb 2013 Location: NY NY Posts: 150 Drives: 11 Nissan 370z S Mt Rep Power: 14	SCCA C. Minimum tubing sizes for (all Showroom Stock, Touring and Improved Touring Category automobiles registered after June 1, 1994) for all required roll cage elements (All dimensions in inches): Up to 1500 lbs 1.375 x .095 DOM / Seamless / Alloy 1501-2200 lbs 1.500 x .095 DOM / Seamless / Alloy or 1.500 x .120 ERW 2201-3000 lbs 1.500 x .120 DOM / Seamless / Alloy 1.625 x .120 DOM / Seamless / Alloy 1.750 x .095 DOM / Seamless / Alloy or 1.750 x .120 ERW (American Sedans may construct to these specifications regardless of weight.) 3001-4000 lbs 1.750 x .120 DOM / Seamless / Alloy - No ERW Over 4000 lbs 2.000 x .120 DOM / Seamless / Alloy - No ERW Main hoop: 4 bends maximum, totaling 180 degrees ± 10 degrees. Front hoop: 4 bends maximum or Front downtubes: 2 bends maximum. Rear hoop supports: No bends. If any of the above bend requirements cannot be met, all components of the roll cage shall be fabricated from the tubing size(s) listed for the next heavier category of automobiles. D. For purposes of determining tubing sizes, the vehicle weight is as raced without fuel and driver. The minus tolerance for wall thickness should not be less than .010" below the nominal thickness. Improved Touring roll cage tubing sizes are to be calculated based on the published vehicle weight minus 180 lbs. E. An inspection hole at least 3/16 inch diameter shall be drilled in a non-critical area of all tubes with a specified size to facilitate verification of wall thickness.