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CAGE TUBING SIZE
TRYING TO GET CAR TO CERTIFIED TO 7;50;;USING MILD STEEL TUBBING.NEED TO KNOW WHAT SIZE OF TUBING I NEED FOR THE "X" BARS BETWEEN THE 2 FRAME RAILS BEHIND TRANS MOUNT AND THE DIGNAL BAR FROM THE RAIL RAIL TO THE ROCKER BAR[ROCKER PANEL]THIS IS A REC[2X3"]FRAME RAILS..PICS BELOW IS OF BARS I'M ASKING ABOUT.
http://i8.photobucket.com/albums/a43...rbird20047.jpg |
The "X" bars that you refer to are #4 in the SFI spec and the diagonal bars are #8A and #8b and all have a minimum spec of 1" x 0.108" in mild steel or 1" x 0.049" in chrome moly.
The driver seat support bar is #9 and it is the one that is going perpendicular between the inner frame rail and the outer lower door bar and it's spec is for 1 1/4" x 0.108" mild steel or 2" x 2" x 0.065" square tubing in mild steel ( 1 1/4" x 0.058" in chrome moly or 2" x 2" x 0.065" square tubing). Bill Mitchell |
Originally Posted by sp2816
The "X" bars that you refer to are #4 in the SFI spec and the diagonal bars are #8A and #8b and all have a minimum spec of 1" x 0.108" in mild steel or 1" x 0.049" in chrome moly.
The driver seat support bar is #9 and it is the one that is going perpendicular between the inner frame rail and the outer lower door bar and it's spec is for 1 1/4" x 0.108" mild steel or 2" x 2" x 0.065" square tubing in mild steel ( 1 1/4" x 0.058" in chrome moly or 2" x 2" x 0.065" square tubing). Bill Mitchell |
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