Those look pretty good. Just be prepared for 80 pounds of catalogues to follow over the next few months.
Fire Extinguisher Size, Mount, Location
- Thread starter JMT
- Start date
Those look pretty good. Just be prepared for 80 pounds of catalogues to follow over the next few months.
I noted some specifics with the ULine products. The fire extinguisher cylinders have to be a certain diameter. The cylinders are quite expensive. I'm inclined to get bungee brackets because they will accommodate a variety of cylinder diameters.
They will end up being in the $87 range for two shipped bungee brackets. Worth it.
I think I'm going to set up my current 2.5lb cylinder on one of the brackets mounted under the front seat and see how it fits. If I can go bigger, I will. But my basic plan is two cylinders; one under driver and one under passenger. It's better to have two people fighting a fire than one. My alternate is one on the side of each seat between the seat and door.
Even with the 8-pounder, I didn't notice any interference between my feet and where the pedals would be, or the floor in general.
Note I do have a 1" seat riser which gives me a bit more room. 03-06, so the seats are now about the height of the 97-02 models. But I think this would work even without risers on the 03-06, though you might be limited to more like a 5-lb.
It might even be possible to just rivet nut it to the tub right in front of the seat.
When I was researching years ago, I read several places the the minimum size you should buy if you want a realistic chance of putting out a vehicle fire is 5 pounds. 10 pounds would be even better. That's what led me to buy a 5 pound unit. I've even contemplated adding another 5 pounder on the other side of my trunk, but I haven't yet. I may eventually.
I'm really concerned with a fire extinguisher in the cab becoming a missile in a wreck.
And honestly I'm guessing your more likely to get into a wreck than a vehicle fire...but I'm no actuary.
I'd really like to see actual testing results of mounts and methods. I'd make me feel better about strapping a heavy missile between my legs.
-Mac
And honestly I'm guessing your more likely to get into a wreck than a vehicle fire...but I'm no actuary.
I'd really like to see actual testing results of mounts and methods. I'd make me feel better about strapping a heavy missile between my legs.
-Mac
I have the (pricier) Drake version in front of my seat.
I like the quick release mechanism.
Lots of cheaper knock-offs on Amazon.
Ok, well, I’ll see what it looks like realistically. I know Blaine said he would never put one under his seat. They look like a pretty big object. Your 5lb is on the InstaTrunk, so that isn’t as overt. Beside the seat makes more sense to me unless it’s quite compact in front. Anyway I need to be able to get to it quick. I guess your game plan is to use the smaller one and then move to the bigger one depending on the fire.
I would not put one there. When my jeep took an involuntary nap on its side, if I’d had one there, not only would I have not been able to access it, it most likely would have exploded in my face. The door was so deformed I wasn’t able to ever get it open at the wrecker yard.
Well, my plan would be to use the small one an in cabin fire, but I'd actually take the 2 or 3 seconds to get the big on for an under hood fire.
BTW, your plan to run 2 - 2.5 pounders does add up to the 5 pound minimum, but if you are alone, using the first one up, then having to go get the second one, might give a fire enough time to get back to full strength. I'm definitely no fire expert though.
I can see that is a vulnerable area. I do have rock sliders there, but still, an impact is serious, so I was thinking under the front of the seat 2.5lb cylinders so they are not so obtuse. I’ll know more when I mock up various cylinder sizes.
Based on the rubber strap one, the straps are 9/32" rubber. A basic rubber has about a 1,500 PSI tensile strength, giving the straps about a 95 lbs break strength. Multiply that by 4 and you get 380 lbs of retaining strength on those straps.
A 5-lb fire extinguisher weighs about 9.8 lbs. Meaning you would need a sustained deceleration of 38G to break the straps. Instantaneous peak deceleration in a head-on crash can be a bit higher, more like 40G for a 35 mph hit into solid concrete, but that peak might not necessarily be long enough duration (~100ms or so) to allow the straps to get stretched to their limits.
https://www.researchgate.net/figure...mph-full-frontal-barrier-tests_fig1_233738149
Worth noting that although the 35 mph hit seems slow, it's actually fairly conservative for most vehicle crashes, since most crashes are not dead-on into solid concrete, but instead oblique against solid objects, against narrower objects (e.g., trees), against road barriers, or against other cars.
That's why the faster I go, the more I ride the car in front of mine's ass. That way I get and entire vehicle crumple zone.
I lost a 1988 F250 to a fire.
Rubber gas line ruptured on top of the engine. By the time I got stopped turned off the engine, pulled the hood release, grabbed the extinguisher, got to the front of the truck, the hood was so hot I couldn't open it.
I sprayed between the opening a whole 5lb cylinder and stepped back and watched my truck burn.
The fuel pump wiring evidently
Got melted and shorted letting the pump keep running even with the key off.
There is no good answer, as to where to mount the extinguisher in my opinion.
Rubber gas line ruptured on top of the engine. By the time I got stopped turned off the engine, pulled the hood release, grabbed the extinguisher, got to the front of the truck, the hood was so hot I couldn't open it.
I sprayed between the opening a whole 5lb cylinder and stepped back and watched my truck burn.
The fuel pump wiring evidently
Got melted and shorted letting the pump keep running even with the key off.
There is no good answer, as to where to mount the extinguisher in my opinion.
Well...if you really want to be serious you need nitrogen? tanks, hoses, nozzles and a drag racing pull knob for fire.
-Mac
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