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December 11, 2008

RTFM

By Rob Einaudi

Editor-in-Chief

I feel the need to defend my buddy Ben Schaffer from Wes Siler’s post at Jalopnik, which claimed that Ben’s harness setup in the GT-R was unsafe. Wes claimed that, "By attaching the shoulder belts to a point lower than the shoulders, the driver and passenger’s spines will be compressed in the event of the car running into something. This will crush the vertebrae and could even lead to paralysis in extreme cases."

Now, since I’m always trying to figure out ways to improve the safety in old 60s Mopars, I’m interested in this stuff. Yes a lot of tuner kids do have improperly mounted harnesses, which are quite unsafe. But Ben is no tuner kid. When I asked Ben about the setup, he wrote back, "simply put, those harnesses were installed by a professional race shop to the recommended spec of the Takata harness installation guide. That’s the best install anyone with a gt-r will get without making a custom harness bar."

Now, I’ve typically heard you want to keep the angle to 15 degrees or less (and various sactioning bodies have different limits), but Takata seems to think that something in the neighborhood of 25 degress is within spec. So there you have it folks. RTFM.

UR2SLOW

Comments

Umai Kakudo
Dec 11, 2008 at 6:48 pm

The best and most comprehensive installation manual I’ve found is for Schrotch products:

http://www.schrothracing.com/docs/Competition_Instructions.pdf

It has a ton of explanations on what happens in an impact and why the harness should be installed in the recommended way.

In a sedan shoulder belts should be horizontal to no further than 20 degrees down. Period.

Make sure to consult the technical rules for all sanctioning bodies you plan on competing in to ensure that you install the correct type of harness and that they installed properly so you don’t fail tech.

As an organizer of local grassroots events I see tons of installation errors for safety equipment. Make sure you RTFM and use safety gear correctly so it can do it’s job properly. Your safety is on line line so don’t risk it to save a buck!

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