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Old 01-18-2016, 01:19 PM   #141
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Quote:
Originally Posted by BenR View Post
Does that weight on that device effect safety?

I can always cut that much from myself or the car.
i feel the weight of it was due to how many bolt connections there were, most likely the reinforced construction due to it. on the other hand, given the economical pricing, it looked like it was an extremely adjustable, a one-size-fits-all option and could be very comfortable to wear.
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Old 01-18-2016, 08:08 PM   #142
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This thread has me rethinking my current seat/wheel strategy, and seems as good a place as any to get advice as to what to do. My current setup:

Recaro Profi SPG XL
Stock 3-point
Momo Prototipo, NRG QR, WB Hub

There is an Elise seat for sale in my AO, which would allow me to put the stock airbag wheel back in. So it would be:

Elise Seat
Stock 3-point
OEM Wheel with airbag

Which would be much safer, yes? Any way to justify the Momo for a primarily street car?
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Old 01-18-2016, 08:18 PM   #143
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Just to complicate things further- You should read this report the NHTSA did to congress about airbag saftey in the 90s. My understanding is that this report is why airbags were changed to be less violent in the late 90s:
Third Report to Congress; Effectiveness of Occupant Protection Systems and Their Use

For drivers outside of the average height range:


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HPDE / track day safety gear flow chart !!-80-lzoyqn3_083d0c90e28f848eeabcd981871d490a9920490c.png  

Last edited by asmasm; 01-18-2016 at 08:49 PM.
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Old 01-18-2016, 09:08 PM   #144
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^

This is weird. It seems to say if you are short or tall you should ditch the airbag immediately. For median height drivers, it sort of makes sense that the airbag is optimized.

But what gives with the 55%-24%-46% for seatbelt alone? Shouldn't that be a continuum?
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Old 01-18-2016, 09:12 PM   #145
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I'm not sure. If you read the whole study they break it out into a little more detail but I would imagine that there are different kinds of injuries depending on the size of the driver and what parts of the vehicle they impact. Again, this is all based on a 1996 study on the single stage airbags that were available at the time and not modern airbags.
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Old 01-18-2016, 09:22 PM   #146
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I'm not the only one that's puzzled. From the report (which is interesting -- thanks for the link):

"The findings for driver height and weight groups appeared somewhat contradictory, since one should expect a high correlation between driver height and weight. Many of the estimates in these analyses were not statistically significant. For driver weight, manual lap-shoulder belts showed the greatest consistency in injury-reducing effectiveness, 42-44 percent for the three groups, while the addition of an air bag to lap-shoulder belts exhibited additional protection for the lighter and heavier groups. The air bag alone for lighter weight drivers showed a nonsignificant increase in risk of moderate injury of 36 percent, which was not observed for shorter drivers. The inconsistency of the results for the height-weight analyses is puzzling."

Maybe median height people drive faster!
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Old 01-18-2016, 09:40 PM   #147
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Makes me wonder what design of airbag my '02 has.
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Old 01-18-2016, 10:38 PM   #148
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A random source from google:
The Hidden Dangers of Older Airbags

Quote:
After airbag–related deaths began catching negative media attention in the mid-1990s, the NHTSA modified a series of safety rules in 1997 requiring automakers to take any unnecessary force out of airbags, beginning with 1998 models. This was followed a few years later by the ushering in of advanced airbags, which alter deployment patterns according to feedback from a slew of sensors. This design eventually morphed into the modern day “certified-advanced airbag” that deploys at lower thresholds to further protect people who aren’t using seatbelts.
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Old 01-18-2016, 10:41 PM   #149
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A bunch of reviews & other news articles say that the 99 came with the new "depowered" airbags, but this one guy on Miata.net insists otherwise. So **** if I know.

--Ian
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Old 01-19-2016, 12:07 AM   #150
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So I've been looking at the containment add-ons seriously now. Johnny, whats the cheapest best way to make one of these work. I have a roll-bar and a ultrashield rally sport. Is it even possible to make one of the kirkey containment kits work?

I really want bolt in and out for track days.
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Old 01-19-2016, 09:58 AM   #151
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Quote:
Originally Posted by aidandj View Post
So I've been looking at the containment add-ons seriously now. Johnny, whats the cheapest best way to make one of these work. I have a roll-bar and a ultrashield rally sport. Is it even possible to make one of the kirkey containment kits work?

I really want bolt in and out for track days.
Post a picture or a link. Most of the add on things do absolutely nothing. You would be better off with a side net.
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Old 01-19-2016, 10:02 AM   #152
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I put this video in email signature. It's a quick little 15 mins cracked full of great information.
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Old 01-19-2016, 10:16 AM   #153
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Quote:
Originally Posted by aidandj View Post
So I've been looking at the containment add-ons seriously now. Johnny, whats the cheapest best way to make one of these work. I have a roll-bar and a ultrashield rally sport. Is it even possible to make one of the kirkey containment kits work?

I really want bolt in and out for track days.
I have the Ultrashield Road Race VS non-Halo seat. They make a Halo version of both my seat and your seat.

I just emailed them asking if it's possible to buy just the Halo part of the seats, and bolt it to ours. Will post here when I hear back.
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Old 01-19-2016, 10:41 AM   #154
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Quote:
Originally Posted by scenturion View Post
Kirkey makes an aluminum bolt-on halo for their aluminum shell seat, the 47 series. (By bolt-on, I mean drill through then bolt on)
I'd imagine it would bolt up to the Ultrashield since the designs are very similar.

The part number is 00900S for the sheetmetal type, and 00900T for the tubular type.

Check out the 00900T in this thread.


Like this.

Side net wouldn't be a bad idea actually.
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Old 01-19-2016, 10:46 AM   #155
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Quote:
Originally Posted by dasting View Post
I have the Ultrashield Road Race VS non-Halo seat. They make a Halo version of both my seat and your seat.

I just emailed them asking if it's possible to buy just the Halo part of the seats, and bolt it to ours. Will post here when I hear back.
Just got this response.

Quote:
It may look that simple, but it really isnít to make a seat full containment, though they look similar they are constructed differently and you cannot just weld a Halo to the seat.

We do not sell just the Halo part for that reason, as well as to keep people from attaching them to seats without shoulder supports, as this can cause worse injuries than no Halo.

Customer Service
Ultra Shield Race Products
Makes sense. Plus, I'm sure they don't want the liability of someone ******* up the install and then blaming them.

Anyone want a 14" Road Race VS? I think I'm in the market for a halo.
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Old 01-19-2016, 10:58 AM   #156
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I want it to be bolt on anyways.
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Old 01-19-2016, 11:02 AM   #157
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that side net is not mounted correctly. it should wrap around the seat.

I don't like the idea of add on halos If the seat was not engineered to have halos in the first place. if you watch the 15 min can save your life you can see what happens in the first min.

that being said. if you use those add on so you can use a side net, without the side net resting on your face. then i think it's a good idea.
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Old 01-19-2016, 11:07 AM   #158
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Can you post some pictures of correct side net installs? I'm pretty interested in getting one installed. What about a left side net without a cage?
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Old 01-19-2016, 11:44 AM   #159
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http://www.raclab.com/content/miatab...build2-114.JPG



this is a well installed side net. follow the manufactures guidelines when installing them. if the dash bar is heavy duty enough then go ahead.

when it's all said and done it might be cheaper and easier to get a OMP hte seat.


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Old 01-19-2016, 11:44 AM   #160
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Is that not too low? It looks like my head would go above that.
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