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Old 06-08-2009, 05:48 PM   #1
sil0nt
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05 STi Black
07 S4 Avant Black

Default HDPE Safety Equipment

I run a half dozen or so HDPE's per year, and I am curious about improving the safety of my car. I currently have a stock seat and 3-point belt. What is my next step in terms of safety equipment for the car? If I add a 5 or 6 point harness, I need a cage since I am kept upright during a rollover. If I go to an aftermarket seat, I lose airbags, and I view that as a lateral move. Is there anything I can do to improve the safety of my car from stock seat/belts without going all the way to cage?

Do the 4-point ASM harnesses need a cage? Do they allow enough downward movement to ensure safety during a rollover? If so, can a HANS device be used with the 4-point ASM's? If not, can a HANS device be used with the stock seat/belts?

My primary motivation is to improve safety... having harnesses and a more bolstered seat would certainly enhance my experience (and prevent me from bumping my head on ceiling of the car), but I don't want to jump into the harness and seat upgrades if they require a cage.

Thanks..
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Old 06-08-2009, 06:05 PM   #2
mav1c
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IMO you either stay stock seats/belts/bags, or go all out and do a full cage, race seats, and harnesses. I suppose a sort of middle ground would be to just putting in a rear rollbar. This should still give you enough safety to run harnesses and race seats, but you'll loose the airbags and the ability to have rear passengers. If you wanted to take the time, you could just swap in the race seats each time you go to the track. I did this during the off season. Really not too bad. Took about 1/2 an hour.
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Old 06-08-2009, 06:18 PM   #3
sil0nt
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Quote:
Originally Posted by mav1c View Post
IMO you either stay stock seats/belts/bags, or go all out and do a full cage, race seats, and harnesses. I suppose a sort of middle ground would be to just putting in a rear rollbar. This should still give you enough safety to run harnesses and race seats, but you'll loose the airbags and the ability to have rear passengers. If you wanted to take the time, you could just swap in the race seats each time you go to the track. I did this during the off season. Really not too bad. Took about 1/2 an hour.
This is sorta what I thought... The STi is not a daily driver, so losing rear passengers or airbags isn't a huge concern.

Thanks..
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Old 06-08-2009, 07:52 PM   #4
MasterKwan
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I have a bolt in rollbar just for something to mount my shoulder straps too. I'm not all that concerned about the seat airbags because, I'm more likely to hit something head on, on track. So, I don't believe that it's all or nothing. Get yourself an autopower 4 pt, seats and a harness. Then you might want to disable the airbags when you're on track. Might save you $3000 in airbag replacement if you hit the wall but, not that hard. Ask me how I know. If your bags deploy, the airbag controller has to be replaced. It's $800-900 all by itself. If you have a harness, you don't really need the airbags do you?

I've seen some horrendously installed harnesses that I'm sure weren't as safe as the factory 3 points.
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Old 06-08-2009, 08:06 PM   #5
MSP608
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Quote:
Originally Posted by MasterKwan View Post
I have a bolt in rollbar just for something to mount my shoulder straps too. I'm not all that concerned about the seat airbags because, I'm more likely to hit something head on, on track. So, I don't believe that it's all or nothing. Get yourself an autopower 4 pt, seats and a harness. Then you might want to disable the airbags when you're on track. Might save you $3000 in airbag replacement if you hit the wall but, not that hard. Ask me how I know. If your bags deploy, the airbag controller has to be replaced. It's $800-900 all by itself. If you have a harness, you don't really need the airbags do you?

I've seen some horrendously installed harnesses that I'm sure weren't as safe as the factory 3 points.
What's the easiest way to disable the airbags? Pull a fuse?
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Old 06-08-2009, 09:27 PM   #6
kcook
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ohm resistor. someone here on nasioc did it for me locally. He did it in his 05 wrx wagon and his airbags deployed in a front end accident later that year. I have sparco evo seats out of "mav1cs" STi and I do not have an airbag light. They should be fully functional.
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Old 06-09-2009, 07:27 AM   #7
dunk
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Quote:
Originally Posted by MSP608 View Post
What's the easiest way to disable the airbags? Pull a fuse?
Yup,

Just cut the power to the controller by pulling the fuse.

-Duncan
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