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Post by Crossbones Dennis on Feb 16, 2014 13:58:51 GMT -6
According to the 2014 NHRA rule book amendments, An SFI 3.3 head sock or SFI 3.3 skirted helmet is required on all open-bodied
cars or all cars 7.49 and quicker, where a neck collar is required but has been substituted with a head and neck restraint device. See Class Requirements. They removed the 7.49 or quicker. www.nhra.com/userfiles/file/2014%20Rule%20Book%20Amendments%201-28-14.pdf |
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Post by hunter5050 on Feb 16, 2014 18:28:02 GMT -6
Jrs too?
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Post by bracketracing on Feb 16, 2014 18:42:51 GMT -6
They don't run 7.49 in 1/4 mile |
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Post by Crossbones Dennis on Feb 16, 2014 18:45:12 GMT -6
I'm not a tech official. This is from the 2014 Jr rule book pages 46-47 NECK COLLAR/helmet restraint device Mandatory. Must be commercially produced neck collar designed for racing. Two different types of collars are commercially available: a full 360-degree “donut” type or a pull-together “horseshoe” type. Modification of the neck collar according to manufacturer’s recommendations, to fit helmet and driver’s neck/shoulder spacing, permitted. Must be worn as per manufacturer’s recommendations. A head and neck restraint device/system is permitted. The device/system must be commercially produced by a manufacturer in the SFI 38.1 head and neck restraint program. The head and neck restraint device/system, when connected, must conform to the manufacturer’s mounting instructions, and it must be configured, maintained, and used in accordance with the manufacturer’s instructions. A head and neck restraint device/system may be used with or without a neck collar. If the device/system is used without a neck collar, a head sock or skirted helmet mandatory www.nhra.com/userfiles/file/2014_JDRL_Rulebook.pdf |
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Post by Crossbones Dennis on Feb 16, 2014 18:48:37 GMT -6
They don't run 7.49 in 1/4 mile The 7.49 part of the rule has been dropped. The way I read it is everybody that uses a Hans has to wear a head sock. |
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Post by hunter5050 on Feb 17, 2014 8:31:40 GMT -6
Ya that's the way I read it too
We don't use one but some of our friends do
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Post by sg3526 on Feb 17, 2014 9:51:32 GMT -6
I think the whole take on that is that a collar will act as some type of fire suppresion in case of a fire. A HANS device leaves your neck and chin open and maybe they are requiring the sock to prevent it.
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Post by Crossbones Dennis on Feb 17, 2014 18:03:23 GMT -6
I think the whole take on that is that a collar will act as some type of fire suppresion in case of a fire. A HANS device leaves your neck and chin open and maybe they are requiring the sock to prevent it. I agree. |
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