frankrehnelt 399 Posted January 9 Report Share Posted January 9 Are these what are called s bend door bars? Quote Link to post Share on other sites
enginerd 6,733 Posted January 9 Report Share Posted January 9 1 hour ago, frankrehnelt said: Are these what are called s bend door bars? Yes. Gray ones on the left are ‘S bend’. I can’t see the other image well. Quote Link to post Share on other sites
Bandit 1,811 Posted January 10 Report Share Posted January 10 single bend>>>>>s bend. The S creates a failure point by allowing the bar to bend versus transferring the compressive forces into the hoop and/or A pillar. I see WRL outlawed them a couple years ago. They are common on Pro Touring and show cars that have little likelihood of being hit in the door and the owners are often more worried about style than actual performance. If your hoop is behind your B pillar/door frame the proper way to do the door bars is to run them through rather than around if running Nascar style door bars. 3 Quote Link to post Share on other sites
Slugworks Paul 1,818 Posted January 13 Report Share Posted January 13 S bend is no bueno. 1 Quote Link to post Share on other sites
petawawarace 309 Posted January 14 Report Share Posted January 14 19 hours ago, Slugworks Paul said: S bend is no bueno. I know someone who just sent pictures of their cage to tech because I mentioned the S bend, but tech said that it is fine. Quote Link to post Share on other sites
wvumtnbkr 7,475 Posted January 14 Report Share Posted January 14 28 minutes ago, petawawarace said: I know someone who just sent pictures of their cage to tech because I mentioned the S bend, but tech said that it is fine. I don't think they are "illegal", just NOT a best practice... Also, the entire system of the cage needs evaluated as a whole. For example, an s bend that is FAR from the driver that also incorporates a straight sill bar is much better than 2 close s bends. 5 Quote Link to post Share on other sites
Bandit 1,811 Posted January 14 Report Share Posted January 14 (edited) 6 hours ago, wvumtnbkr said: I don't think they are "illegal", just NOT a best practice... Also, the entire system of the cage needs evaluated as a whole. For example, an s bend that is FAR from the driver that also incorporates a straight sill bar is much better than 2 close s bends. Adding verticals from the sill bar to the door bars, as shown in the "are my bars too close" thread, will help a lot. (That car doesn't have S bends but shows good verticals) As Rob says S bends are not illegal, the suggested cage in the BCCR actually shows them which makes me cringe, but rather they are not as strong as single bend. Doors don't need to open in this series so best practice is to cut through when using nascar style door bars. Edited January 14 by Bandit Quote Link to post Share on other sites
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