Toyota FJ Cruiser Forum banner

81 - 100 of 112 Posts

·
Registered
Joined
·
62 Posts
Discussion Starter #82 (Edited)
Bro . Buy the snorkel . Install it and take pics of your Fj in water up to at least the windshield .
Lol, this forum is awesome. On to 9th page of thread before someone drops an unambiguous positive rec. I'm not counting Baz- he said to upgrade everything.

Firemedic, it's a promise. I appreciate the many comments about how snorkels are designed for dust and, as such, somehow won't work for what I want. I'm going to stand in respectful disagreement. If the air intake is properly sealed against water ingress, then it is a snorkel, irrespective of what it was designed for originally.

To me that means I can take water induction off the list of problems, and move on to something else. Plus I like the way they look. I especially like the Army Hummer looking one. Unfortunately it's expensive. Perhaps because it's the only one designed for water instead of dust. (I kid!)
 

·
Registered
Joined
·
62 Posts
Discussion Starter #83
car bra / waterproofing the nose ...common DU ...don't know if you guys do this when water fording
It's more than $200 in shipping costs from Oz. I was like no way so I checked Fedex and yes, way. :frown

The item itself is substantially less than that. I'm gonna have to consider other options. Maybe get someone to bring it back. My in-laws travel a lot ...
 

·
Premium Member
Joined
·
10,853 Posts
It's more than $200 in shipping costs from Oz. I was like no way so I checked Fedex and yes, way. :frown

The item itself is substantially less than that. I'm gonna have to consider other options. Maybe get someone to bring it back. My in-laws travel a lot ...
Welcome to my world, importing parts from the US....

I reckon a smart bloke could make one himself, or get a local canvas manufacturer to knock one up ... using stretchy straps or velcro tabs to hook it on
the intent of a car bra isn't to make it waterproof, just prevent volumes of water surging into the engine bay and offer some degree of head on water protection ....

On the other hand, you gotta pay to play.....

Cheers
Baz
:blueblob:
 

·
Registered
Joined
·
62 Posts
Discussion Starter #85 (Edited)
get a local canvas manufacturer to knock one up ... using stretchy straps or velcro tabs to hook it on
the intent of a car bra isn't to make it waterproof, just prevent volumes of water surging into the engine bay and offer some degree of head on water protection ....
Yeah, when you put it like that, I can't argue with you; that'll take a lot of time. Ordered.

You may go to bed tonight knowing you helped Australia's trade balance.
 

·
Registered
Joined
·
62 Posts
Discussion Starter #86
Snorkel ordered. Photos forthcoming.
 

·
Desert Moderator
Joined
·
5,664 Posts
Could you kindly elaborate on why you think a sealed, raised intake would only gain me a couple of seconds?
Because your FJ will start floating, then sink, and your ECU gets wet, then you're hosed. A snorkel doesn't turn your FJ into a submarine.
If the water is moving, then you're double hosed if you start to float - only option is to open the downstream door and pray the electronics stay dry enough to get you out - remember that the FJ is has an electronic throttle, and there are a bunch of ECUs under the dash.
Ask me how I know about floating while fording and how lucky I was that the vehicle was not electronic.
 

·
Registered
Joined
·
9 Posts
Exactly, it looks really cool but don't try to cross water because you have a snorkel! Flood water will wash your vehicle away much quicker than you might expect. I'm a fireman/chief of 35 year and also a survivor of being 22' under water in a vehicle (not because of flooding).
 

·
Registered
Joined
·
23 Posts
Your concern about the battery is misplaced. A sealed maintenance-free battery does not short out even if submerged. Have you never seen videos of cars in water up to their windshield and their headlights are still burning fine? Ditto many other electrical features on a car....electricity always takes the path of least resistance which in a car will be hard-wired connections.
 

·
Registered
Joined
·
62 Posts
Discussion Starter #93
Exactly, it looks really cool but don't try to cross water because you have a snorkel! Flood water will wash your vehicle away much quicker than you might expect. I'm a fireman/chief of 35 year and also a survivor of being 22' under water in a vehicle (not because of flooding).
Respectfully, you have missed the point of this thread entirely. This is not about crossing water on a lark; this is about when you are happily willing to stay on the roads, and the water comes along anyway, and you have to deal with it. I'll be perfectly happy never to do this again if I don't have to. Although if I'm going to be honest, it was kind of fun.

Also,I'm not talking about driving into a roaring torrent of flood water. That is not how Houston floods. This is a very wet city with exceptional drainage that gets overwhelmed when rainfall rates exceed about 3"/hour. The water just starts backing up into the city, from a few inches (several times a year) to several feet deep (four times in the last seven years). It's not moving water that is going to wash your vehicle away; the city is too flat for that to be possible.
 

·
Registered
Joined
·
62 Posts
Discussion Starter #94

·
Registered
Joined
·
9 Posts
Respectfully, you have missed the point of this thread entirely. This is not about crossing water on a lark; this is about when you are happily willing to stay on the roads, and the water comes along anyway, and you have to deal with it. I'll be perfectly happy never to do this again if I don't have to. Although if I'm going to be honest, it was kind of fun.

Also,I'm not talking about driving into a roaring torrent of flood water. That is not how Houston floods. This is a very wet city with exceptional drainage that gets overwhelmed when rainfall rates exceed about 3"/hour. The water just starts backing up into the city, from a few inches (several times a year) to several feet deep (four times in the last seven years). It's not moving water that is going to wash your vehicle away; the city is too flat for that to be possible.
I was there and worked the 2017 floods in Houston (by the way your traffic sucks!) I worked in Kingwood and surrounding areas (I'm an insurance adjuster) and worked where many of the home flooded only because they opened the levi.
 

·
Registered
Joined
·
62 Posts
Discussion Starter #96
G'day,
which one did you order ...out of curiosity ?
River Raider with extension. I like that it's steel, and I like the way it looks.
 

·
Registered
Joined
·
62 Posts
Discussion Starter #98 (Edited)
Because your FJ will start floating, then sink, and your ECU gets wet, then you're hosed. A snorkel doesn't turn your FJ into a submarine.
I agree that this is an eventual failure mode, and thank you for pointing this out. To turn your concern into a design spec, I'll restate it this way: we need to figure out the depth of water such that the cabin displacement is large enough to balance the mass of the vehicle (neutral buoyancy).

Here's the math: I estimated the interior volume of the FJ at 100 cu feet (it's 70 CF cargo space with the seats down, so I think that's reasonable; if anyone knows the actual number please tell me). For a 5200 lb FJ and subtracting out buoyancy of the (my) tires, you have net mass of 2000kg, which requires 2000 liters of cabin volume under the waterline for neutral buoyancy. That's 70 CF, so at the point that the FJ starts to float is when all but 30 CF is submerged.

The FJ is roughly 8' x 4' around the top, so a foot down from the roofline is about the spot. Note that this is true no matter what the actual height of the vehicle is.

Note further that this is a little higher than the empirical data point we have from Bluecuss about mid-windshield being where things got sketchy. You would expect things to start getting increasingly sketchy as you got within a few hundred pounds of neutral buoyancy; the hydrodynamic forces from any movement of water would start to push you around more and more.

I wonder if there are FJs out there with enough extra gear that could submerge completely and not float. It would take another thousand kilos.
 

·
Registered
Joined
·
62 Posts
Discussion Starter #99
I was there and worked the 2017 floods in Houston (by the way your traffic sucks!) I worked in Kingwood and surrounding areas (I'm an insurance adjuster) and worked where many of the home flooded only because they opened the levi.
I know lots of people in Kingwood. You probably helped some of them. Thank you, from my heart.
 

·
Registered
Joined
·
62 Posts
Discussion Starter #100
Your concern about the battery is misplaced. A sealed maintenance-free battery does not short out even if submerged. Have you never seen videos of cars in water up to their windshield and their headlights are still burning fine? Ditto many other electrical features on a car....electricity always takes the path of least resistance which in a car will be hard-wired connections.
I thought you were for sure wrong. You are clearly correct. Lots of stories out there, fewer pictures, but this is one:

 
81 - 100 of 112 Posts
Top