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  #157  
Old 06-01-2015, 07:42 PM
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Re: WK2 Offroad

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Originally Posted by sironic View Post
After getting stuck one time with no traction to any wheel (beached down at Walpole - no wheels spinning in Sand mode Low) I've started looking at how the Selec-Terrain settings other than Sand might help get me out if I belly it out again.

No wheels spinning? That means you need more accelerator pedal.

Sand is what you are after for sure, but sometimes the traction control is really aggressive and you need a lot of accelerator.

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  #158  
Old 06-01-2015, 08:14 PM
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Re: WK2 Offroad

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Originally Posted by sironic View Post
After getting stuck one time with no traction to any wheel (beached down at Walpole - no wheels spinning in Sand mode Low) I've started looking at how the Selec-Terrain settings other than Sand might help get me out if I belly it out again.

A video I found on YT by Jeep, suggests that the front axle is somehow locked at 50-50 torque split in Rock mode. Is this right, and if so, how do thay achieve this? I don't have the rear LSD, so am keen to understand how best to achieve traction in this circumstance. I would imagine that locking an axle would help somewhat, as one could at least rely on it for using reco tracks, right?

Yeah, that video doesn't make any sense, there is no locking on the front axle, other than by brake based torque distribution. But as we've seen earlier in this thread rock mode doesn't do very well at preventing spinning wheels, it seems to prefer to allow more spinning on the basis that you need greater steering control.

If you are bellied and no wheel is spinning then locking diffs aren't going to help. quadralift might help, if you can lift the suspension and reverse out. I don't like low range in soft sand, I feel you lose too much momentum, and at take off the increased torque tends to dig down. I use sand mode in high, keep momentum up.

edit: oh and drop those tyre pressures!
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  #159  
Old 06-08-2015, 04:32 AM
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Re: WK2 Offroad

I'd like some opinions on snorkels and the WK2. Until recently, there wasn't one available, and I sort of rationalised that I didn't need one because, one, I have quadralift so can get a fair bit of extra height, and, two, I read a few comments that snorkels don't help much with modern 4WD's because the computers will get flooded before the engine, so why bother?
Now Murchison are selling a snorkel which fits the 2014 JGC, I'm trying to figure out whether to spend a $1000 on it before a trip to Cape York in the hopefully near future.
Sort of related: when Jeep quote 500mm as max wading depth, how does this relate to the various heights of Quadralift? Although I suppose if I'm worried about 50mm then it doesn't matter (Prados I think specify 550 mm).
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Old 06-08-2015, 05:43 AM
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Re: WK2 Offroad

I thought people got Snorkel to avoid the extra dust at bonnet height rather than increase wading depth?

I've seen cars down with a snorkel in shallow water and another vehicle(same model) without one go through a deeper creek without an issue.

Personally i'd not be going deeper than say 500mm + 50 mm for factory conservative + 20mm for a decent tyre upgrade (275/65/R18 LT) + whatever height on top of normal the off road 2 gives you because you don't want mucky water in your car, right?
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  #161  
Old 06-08-2015, 06:58 AM
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Re: WK2 Offroad

I would go any deeper than 500mm
Under the passenger seat below floor level are the modules for the air suspension and some other module
If you get stuck in water over your sill height you'll likely get water in this section.
The grand is a capable 4wd. I've taken mine on hard tracks leaving onlookers with their mouths wide open!

But I wouldn't take it through water any deeper than the sill height.
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  #162  
Old 06-08-2015, 07:11 AM
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Re: WK2 Offroad

If u look at the air intake it is right at the front of bonnet headlight and faces forward, first issue not a good position. Although u can be careful it is easy to go to fast or drop a wheel into a hole that may push some water into the intake, game over. For me a snorkel is cheap insurance. I had one on my last two cars and will get one on this one once I see the TJM snorkel then I will decide which one I will get. TJM or Murchison.


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  #163  
Old 06-08-2015, 07:31 AM
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I agree with what Hutch is saying.
Whilst the depth of the water might be under 500, you hit it too fast you might get a wave over the bonnet.

I just came back from a trip today where having a snorkel would have made it a lot less stressful.
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  #164  
Old 06-08-2015, 08:20 AM
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Re: WK2 Offroad

In the meantime I carry a water bra for those crossings that could prove a little tricky.


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  #165  
Old 06-08-2015, 01:49 PM
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Re: WK2 Offroad

I agree..the idea is not to enter the water too fast and you should be ok, here is a river crossing that was fun and not a single drop of water got inside the cabin.


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  #166  
Old 06-08-2015, 05:11 PM
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Re: WK2 Offroad

Great photos Victor1960! Thanks everyone for the comments. I had thought a water bra might be a good idea, and I imagine it's still worthwhile even with a snorkel. I didn't know TJM is working on one. From what I can see, the Murchison snorkel has a duct which runs around almost under the car - not literally I'm sure, but it must be quite long and I would think have some effect on airflow. Better aesthetically than running it the full length of the bonnet on the outside though I guess.
Has anyone ever tried to colour code a snorkel?
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  #167  
Old 06-09-2015, 02:51 AM
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Quote:
Originally Posted by Hutch801 View Post
In the meantime I carry a water bra for those crossings that could prove a little tricky.

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Water bra? You got any pics or details on one of these. Tried googling and got ladies boobs...
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  #168  
Old 06-09-2015, 03:10 AM
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Re: WK2 Offroad

http://m.ebay.com.au/itm/201119362255?nav=SEARCH

Search "water bra for 4wd"


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