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Old 11-06-2017, 07:18 PM
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Carguy Carguy is offline
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Re: Proposed Rule Changes for 2018

Originally Posted by Slowpoke View Post
Our rules already allow the use of FMVSS 209 compliant four points, but those belts are not approved by the belt manufacturer for use in all vehicles. You will specifically notice the absence of Corvettes and BRZ/FRS vehicles from Schroth's approved list which are two very popular vehicles in our series.

From the Schroth Profi ASM documentation:

This rule is definitely a different philosophy in use by other established organisations. Philosophically I suppose that my views rank somewhat as a libertarian; give the individual the right to make their own choices. I believe that if there is a safety device out there that can provide greater reduction in injury in the most frequent type of collision we see in OTA, our ruleset should be open to including it. The fact that James Mewett (aerospace engineer, former CCC chair, and long time competitor and instructor) and Dave Barker, (medical doctor familiar with sports injury and the risks of motorsport, current CCC chair, long time competitor) are two of the proponents of this change have helped sway me to the side of having this discussion.

I compete in a car with a six+ point cage, I have six point belts and seats with wings, I have a Simpson Rage Pro FHR, so this rule decision is to help and/or affect others, not for me. Would a special waiver and counselling from a scrutineer cover our obligation in this regard?

In the end, we are a division of CASC-OR which has a safety committee that advises on these matters. I'll invite George McCullough to attend our meeting so that he can hear both sides of the story rather than my re-iterated versions.
The absence of the BRZ in the Schroth approved list is why I'm not currently using a four-point belt, however other drivers might benefit from a new rule. Schroth actually states that two of their four-point harness products are compatible with the Hans device namely the Profi ASM II and the Quick Fit Pro.

"The Profi II ASM shoulder is only available in 3" width but is still suitable for use with a Forward Neck Restraint such as a HANS device" from the first link below.

Profi II ASM

"Schroth's revolutionary Quick Fit Pro is the world's first 4 point harness that is designed to be used with a HANS Device in your stock seats! Now the safety and peace of mind that come from driving with a HANS device is available to the Driver's School and Open track day participant."

Quick Fit Pro

A driver from the Calabogie GT Challenge series uses the Schroth Quick-fit four-point with ASM and a Hans device in a BMW 1M without a roll cage. The series allows point-by passing anywhere on the track.
CarGuy - Subaru BRZ #57

Racing is life. Anything before or after is just waiting. Steve McQueen

Last edited by Carguy; 11-06-2017 at 07:34 PM.
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