Disco Air Intake...

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Top of pagePrevious messageNext messageBottom of pageLink to this message   By JEEPETR on Friday, June 15, 2001 - 12:26 pm: Edit

Hello All,

I was wondering if anyone had made any changes to where the stock airbox draws air in? I've taken the air trumpet off, as I am considering installing a second battery in front of the box, but was thinking, even driving through a flooded road, this intake is likely to draw water.

I was thinking maybe of sealing off the stock intake hole, and creating a new one, same size in the fender side, and than cutting a hole and running a short piece of pipe into the fender, drawing the air from within the fender.... Any other thoughts?

~Scott T.
'95 D-90 (JEEPETR)
'96 Discovery (New addition to the Addiction!)

Top of pagePrevious messageNext messageBottom of pageLink to this message   By Kyle Van Tassel (Kyle) on Friday, June 15, 2001 - 12:34 pm: Edit

Thats kinda tough to answer. Its hard to say what gos on in there during a crossing. Why dont ya just get the snorkel?

Kyle

Top of pagePrevious messageNext messageBottom of pageLink to this message   By ron on Friday, June 15, 2001 - 12:37 pm: Edit

I believe the set up you describe is used on the 200TDi discos, which are often retrofit with snorkels to offset the fact that the inner fender is a very dirty source of air.

Ron

Other thoughts:

Why is it that I know the above? I am correct or am I delusional? Why can't I learn to spell?

I would like a hood scoop immediately above the box with a forward facing opening but with a flap I could close during rain or water crossings?

Top of pagePrevious messageNext messageBottom of pageLink to this message   By Leslie on Friday, June 15, 2001 - 12:43 pm: Edit

Okay Ron, step away from the computer.... it'll be alright. Just breathe. Don't run when the guys with the white jacket for you arrive. ;)


I've got to agree, though.... W/ all of the electrics, petrol V8s aren't the cat's meow when it comes to crossings... but I think it'd still be worthwhile to go w/ a snorkel if you're considering water crossings with any regularity.

-L

Top of pagePrevious messageNext messageBottom of pageLink to this message   By Ron on Friday, June 15, 2001 - 12:49 pm: Edit

Sorry L,

I have been doing the 80 hours+ a week deal and it is getting to me, especially cause I want to go drive through the stick tomorrow with the ROVERS club.

Ron

Top of pagePrevious messageNext messageBottom of pageLink to this message   By JEEPETR on Friday, June 15, 2001 - 01:09 pm: Edit

Okay Guys,

First, this is not my main off-road vehicle, but the recent floods in Texas have reminded me of times local roads have been flooded. My Disco replaces a 1989 Nissan Pathfinder that I have driven for eleven years. It is highly modified (ARB's in both ends, 32" M/T's, custom bumpers, winch, etc, etc..), and got me into the fourwheeling bug. I than bought a Defender 90 and made it my primary toy (read off-road truck)which hooked me on the LAnd Rover Mystique all togehter, and hence the Disco (New addition to the Addiction!) However, stock Nissan engineers seemed to believe that drawing the air for the airbox from the inner fender to be a good idea. I can't complain, as I've had Water run accross the hood at moments, and never drawn any water in.

The Disco's air intake is facing forward, smack behind the headlight. Good for inducting cool air driving down the road no doubt, but I would also think good for ingesting water easily should the nose dip under water. (Though a Battery sitting in front of it would likely be a nice blocker for a splash of incoming water). I dunno, just too dumb to know when to leave well enough alone I guess...

~Scott T.

Top of pagePrevious messageNext messageBottom of pageLink to this message   By Jon Williams (Jonw) on Friday, June 15, 2001 - 01:38 pm: Edit

Here's something interesting to think about: if you go deep enough for the air silencer to draw in water, your distributor will also be submerged.

Actually that front bulkhead is more watertight than you'd think. Yes, the headlight is there in front, but the space behind it is sealed from the engine compartment. My biggest problem with water ingress is water splashing in from the side of the fender, behind the radiator. But then again, without a snorkel, I try not to go TOO deep...

The Disco's airbox does have some pretty decent drain holes, and I've survived some "nose-unders" without sucking air in the intake or getting my filter wet, even though I'm kinda sure the box was under water briefly. But the prescence of the air silencer helped with that. If I'd have had it off, there'd have been some problems...

The inner fender isn't a bad place to put an intake, as it's very weathertight (not read 'watertight') and the amount of dust blown through there is negligable. But the highest you could put it in the fender is no higher than the level of the stock intake.

I guess I'm saying I'd still recommend a snorkel if you're gonna do any sufficient wading, but it's all up to you.

Top of pagePrevious messageNext messageBottom of pageLink to this message   By RVR OVR (Tom) on Saturday, June 16, 2001 - 12:41 am: Edit

Scott,

Jon has a point. I once (and i hope never again) got the left front side of my truck completely submuged. Headlight, hood, and all. Some would say the gods were with me that day, as I had no ingress into the engine. If you look at the front of the disco it is designed very well to keep water out in front of you if you have a decent wake going. Look at the shape and cut of the front grill, the shape of the air damn, etc. I think there was some method to LR's madness. My front end popped down under and then popped back up, and upon inspection I could see that not much water got in that area. If the intake would have been lower and relocated, I think it would have been worse. Of course, now that the air damn has been removed, H20 also has a better chance of coming in from underneath.

In any case, of course a snorkel will make things safer, but staying out of that crap unless it is between the trails point A and point B (as which I have learned to do, when I can) helps as well.

Tom


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