Race Car Safety: Protecting the Driver's Waist Down Area

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Discussion Overview

The discussion centers on race car safety, specifically focusing on protecting the driver's waist down area. Participants explore the feasibility of using a Carbon Fibre/Kevlar weave for structural reinforcement in critical areas such as the transmission tunnel, firewall, and floorboard. The conversation includes considerations of existing solutions, cost-effectiveness, and the nature of injuries in racing.

Discussion Character

  • Exploratory
  • Debate/contested
  • Technical explanation
  • Conceptual clarification

Main Points Raised

  • Some participants propose using a Carbon Fibre/Kevlar weave to create flexible yet solid protective structures for the driver's lower body.
  • Others question the necessity and effectiveness of this approach compared to existing solutions like roll cages and metal/fiberglass structures.
  • A participant cites a historical incident involving Don Garlits to highlight the potential for serious injuries below the waist in racing.
  • Concerns are raised about the commonality of such injuries and the practicality of the proposed solution given the weight limitations in racing.
  • Some participants mention existing safety measures like clutch blankets and driveshaft hoops, suggesting that solutions vary based on specific dangers.
  • There is discussion about the costs associated with materials, with estimates provided for the price of Kevlar and carbon fiber plates.
  • One participant emphasizes that safety should not be compromised by cost, arguing that financial considerations should not limit safety measures in racing.
  • Another participant suggests that the original idea, while not necessarily the best solution, has sparked valuable discussion and thoughts on the topic.

Areas of Agreement / Disagreement

Participants express a mix of agreement and disagreement. While there is recognition of the importance of safety in racing, opinions diverge on the effectiveness and necessity of the proposed Carbon Fibre/Kevlar solution versus existing safety measures. The discussion remains unresolved regarding the best approach to protect the driver's lower body.

Contextual Notes

Some participants note that the level of danger varies depending on the specific components and their operational speeds. There are also references to historical incidents and existing safety regulations that inform the discussion.

Who May Find This Useful

This discussion may be of interest to race car designers, safety engineers, and racing enthusiasts concerned with driver safety and injury prevention in motorsports.

CleverBigIdeas
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I have been thinking about racecar safety, specifically protecting the driver's waist down area. I was thinking of a transmission tunnel, firewall area, and floor board (just by pedals)
Here's The Idea:
What if I used a Carbon Fibre/ Kevlar weave to be flexable into the position you want then solidify it, (epoxy?) to these custom pieces, or pre-made plates?
Main Question: Would this work?
Side Questions:
Would this be cost effective for say a 12" x12" plate?
Does this already exist?
Any help would be appreciated.
Thanks
 
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What problem are you trying to solve?

Is injury to the driver below the waist a 'thing'?
Why is your solution so elaborate? What does it solve that a rollcage and sheet metal/fibreglass doesn't?
Why not just design the shape from the start? Why must it be put in place and then hardened?
 
Yes, Don Garlits got the rear (ball) area of his foot sheared off by a clutch failure that a maybe a tunnel like this could have saved.
This solution applies to transmission area where ad a roll bar protects for rollover, and sheetmetal/fiberglass would break at the speed at which tsome of this parts blow up at (about the speed of a bullet) And for the last question, not all the cars made are the same width/length at each other (A 1971 Plymouth Duster isn't the same as a 1983 Chevorlet Camaro). We drag race, and these injuries although don't happen all the time, when they do, they can be life changing, (as of Don Garlits getting his ball of his foot cut off) As a common saying, better to be safe then sorry.
 
This is for stock cars? That would have been helpful to know. I was thinking F1s or somesuch, which are designed from the ground up.

So, other than this one incident, is injury below the waist common?

"better to be safe then sorry" doesn;t scale well, when you're limited by weight, and have a large number of eventualities that could occur.
 
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No, this is for racing (well, actually it can be used for stock cars but,) like our car (see profile pic) it has 750 horsepower with an automatic transmission which, might overload the tranny and blow it up, yes, we do have a plastic one with a tin aluminum one around it, but if it had a serious blow up, be prepared for big holes in the floor.
 
CleverBigIdeas said:
No, this is for racing (well, actually it can be used for stock cars but,) like our car (see profile pic)
Stock car racing. Isn't that a stock car? Or is my understanding antiquated?

"... the term stock car came to mean any production-based automobile used in racing. This term is used to differentiate such a car from a race car, a special, custom-built car designed only for racing purposes ..."
 
Oh, I thought you meant stock car as in from the factory, this is just for racing in general (Drag, NASCAR, F1, Dirt) I was also looking at prices for Carbon Fibre/ Kevlar fabric and its actually not that bad.
 
Do you know that kevlar will stop a stampeding gearbox where a metal plate won't?
Kevlar vests stop high-speed low, mass bullets, but...
 
'Let's use Kevlar' is a poor solution. For situations that require energy absorption 'let's find a material with good toughness (energy absorbed up to failure) ' is a better path. Whether Kevlar meets your specs is another matter.
Never over constrain your problem.
 
  • #10
ifin you want safe sex..wrap that rascal..ifin you want safe racing wrap that tranny

http://www.jegs.com/i/Deist-Safety/303/81020/10002/-1?parentProductId=1325362
 
  • #11
Ranger Mike is right on the money. This thread has a lot of side talk for an obvious, well-known, solution:

http://www.stroudsafety.com/Images/Engine-TransBlanketLg.jpg​
 
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  • #12
I am assuming that the Don Garlits incident that you are speaking of is while he was driving his front engine Rail. That would be why we now for the most part run the driver in front of the engine. Also in that accident there was a "flak jacket" in use. In theory I like the idea you have however, the take away lessons that I picked up there are (1) not all equipment damages generate shrapnel. (2) not much (of that era technology) will stop a wildly spinning clutch disc when your sitting on the bell housing.

I would tend to look at a layered device similar to a chain saw chap that would entangle the larges grating pieces as a good inclusion.
 
  • #13
The level of the danger depends on the spinning parts and their speed. I've seen clutch "blankets" and transmission blankets (as above), and sometimes metal shields. There are also "driveshaft hoops" to catch the front of a broken driveshaft and keep it from coming inside the car or making you pole-vault. So the solution depends on the danger you are protecting from.
 
  • #14
Randy Beikmann said:
There are also "driveshaft hoops" to catch the front of a broken driveshaft and keep it from ... making you pole-vault.
When I drove a beater that was dying noisily, I could not shake an irrational fear of this very thing.
 
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  • #15
I once had a pinion shaft break and found myself at 100 mph with the rear of the driveshaft dragging on the ground. I was lucky it wasn't the front!
 
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  • #16
Exactly why NHRA and other sanctioning organizations mandated a front safety hoop around the front of the drive shaft just behind the front U joint back in the early 1960s
 
  • #17
Saw this on the highway a couple years back. Wasn't the drive shaft obviously, but some sort of long, thin rod (at least 4 feet long, 1/4" dia) was protruding form a car from near the near axle - dragging on the ground, point-first, shooting up sparks. (I'm sure it was originally more like 5 feet long, and had been ground down to 4 feet).

I flagged them to pull over and check it, though I don't think they took me seriously.

I'd hate to think what might happen if they hit a pothole.
 
  • #18
CleverBigIdeas said:
I have been thinking about racecar safety, specifically protecting the driver's waist down area. I was thinking of a transmission tunnel, firewall area, and floor board (just by pedals)
Here's The Idea:
What if I used a Carbon Fibre/ Kevlar weave to be flexable into the position you want then solidify it, (epoxy?) to these custom pieces, or pre-made plates?
Main Question: Would this work?
Side Questions:
Would this be cost effective for say a 12" x12" plate?
Does this already exist?
Any help would be appreciated.
Thanks
The cost of a 12" kevlar plate would be around $40, and the carbon fiber would be about $25. That is quite a bit of money.
 
  • #19
do you know how to make a small fortune in racing?
start wit ha Big Fortune...roger penske..
my point is money should not be used in the same sentence as SAFETY.
 
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  • #20
Ranger Mike has a very valid point, money should never stand in the way of safety, if you can't afford safety then you can;'t afford to race. I I think the OP has a valid point, injuries from the waste down is a very real issue, look at sprint cars, fuel altereds, even karts for that matter, while lots of these have been addressed as in the trans blanket, and blow proof bell housings, protecting a drivers legs is a good idea.
Is the original posters idea the best solution? maybe not, BUT it has inspired some interesting thoughts, and that is worth something. even though some here don't seem to think so.