Just A Reminder About Adding Shoulder Harnesses To Street Cars, Even Vipers

Jack Baruth
by Jack Baruth

Somewhat oddly for the site that used to prioritize being FIRST POST above everything else, Jalopnik was last out of the gate with their review of the Viper ACR. I think it was worth the wait, because it was written by legitimate sports-car-racing hero Andy Lally. You can check it out here. As competent a racer and driver as I think I am, Andy’s obviously on the proverbial next level.

Which is why it made me sad to read one of the story’s last paragraphs.


Andy tells us:

Last but not least, if you are serious about buying this car please take these next words as serious as you will take any other advice. BUY THE SIX POINT SEATBELT UPGRADE. I did three flying laps in this car with a regular belt and had to pull into the pits because for as much grip as you can generate, a regular shoulder belt does not keep you in place well enough.

In Dodge’s defense, I was vocal about this right away and they explained that they are prohibited from selling a street car with these belts. They did have a car on-site with six-point belts installed and it was much more pleasant. The car is built so that you can easily install them. Check that box when ordering.

In Andy’s defense, I think he has about as much experience with “trackday specials” as I do with any kind of lambskin condoms. He is what they call a “real racer” who “really races” in “real race cars”. So when he gets in a car on-track it has six-point belts and a full rollcage and, more often than not, a monocoque designed to distribute crash impact.

The Viper ACR is capable of hitting a wall at a racetrack at nearly the same speed a World Challenge GT car could achieve. But it has absolutely no additional rollover protection besides what is built into the body. It is designed to roll over in a way that protects conventionally belted passengers. The interior is made of things that are softer than a steel tube. If the roof collapses because there aren’t enough steel tubes around the driver, the three-point belt will allow said driver to slide a bit to avoid said collapsing roof.

Unless, that is, you have shoulder harnesses, in which case your neck will be the fulcrum on which the car’s entire weight is focused. Do not expect to be able to resume your place in your high-school track team after that happens.

This is not the first time I’ve written about this. Nor will it be the last. Because it’s important for you to know. If, however, you happen to be able to drive a Viper ACR as quickly as Andy Lally undoubtedly can, you can make a change to your car that will bridge the gap between the loosey-goosey but rollover-safe feel of a three-point belt and the strapped-in immobilization of a proper racing harness. It’s called a CG-Lock, and it works well enough that Bob Lutz put one on his car when he and I did the CTS-V Challenge way back in the Stone Age.

And if you, like many TTACers, thought the Chevette photo was the coolest part of article, go check out Darren’s site, why don’t ya?

Jack Baruth
Jack Baruth

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  • Misplacedape Misplacedape on Jul 22, 2015

    "the three-point belt will allow said driver to slide a bit to avoid said collapsing roof" is there a basis for this assumption? after your original article i searched and every technical journal publication i found stated higher risk of injury correlating to a higher degree of the occupant moving around in a rollover circumstance. effectively suggesting that the three point is a compromise but the objective is to keep the passenger as still as possible. i raise the question genuinely as opposed to trollishly as i think it is a very worthwhile discussion, but predicated on that single important assumption.

    • See 1 previous
    • Misplacedape Misplacedape on Jul 22, 2015

      @JuniperBug i was specifically looking for research relating to restraint design and crash simulation for cars without roll cages in rollover conditions so they were typical passenger vehicles

  • Ryoku75 Ryoku75 on Jul 22, 2015

    No matter how many times this site links its good pals at Jalopnik, I'm still not reading anything there. I hope this site doesn't become a hub for "Link this article and I'll pay you some ad revenue", I have public TV for advertisements.

  • Billyboy The Big Three, or what used to be the Big Three, have been building sedans in the FWD unibody mold since the 80’s to compete with the Japanese - and failing. The Taurus was the only decent attempt, and even that fizzled out after a few years. Back to GM, There’s no reason to choose a Malibu over a Camry or Accord for normal buyers. The story was the same when it was the Citation, Celebrity, Lumina, and Impala, as it was the same with Ford and Chrysler. GM knows this, as does Ford, and doesn’t care - and rightfully so. Better to cede this time-worn commodity segment to others and focus to where the market has shifted.
  • CanadaCraig You are not wrong. Or a dummy for that matter. I also think it's foolish of GM to kill off the Malibu. That said... I think there needs to be full-sized plain jane sedans for sale. And there are none. And haven't been for a long time. A basic BIG car. With room for six. Bench seat and all. Nothing fancy. And a low price to go along with it. I would buy one.
  • OCcarguy Back in the 1980s the Mitsubishi Cordia was one of my favorite cars. I would love to see them make cars we could get excited about again.
  • Chris I dislike SUVs. I think they are clunky looking and not much in the handling department. I'll take an Audi A4 or BMw three series or even a VW Jetta over any SUV. It I need more interior room for a shot time, I'll rent something bigger.
  • Amwhalbi I have a sedan and an SUV, and for pure driving and riding enjoyment, I'll pick my sedan every time. But yes, SUV's are generally more practical for all around usage, particularly if you have only one vehicle. So I think the perfect answer is the sedan hatchback (a la the last Buick Regal) which can still yield the drive and ride or a sedan, yet provide a greater modicum of practical, accessible cargo capacity. Most of the sedans made could (with minor styling changes) easily become 4 door hatchbacks. Oh, yeah, I forgot - Americans don't like hatchbacks, even if they do in Europe...
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