 | Home > General & Technical (L663) > When is a snorkel not a snorkel? |
 
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| SN Member Since: 30 Jun 2007 Location: SK6 Posts: 729  |
Snorkel has ALWAYS been a misnomer on 21st century Land Rovers
Too many electronics that could be dunked (and fizz) for it to be anything other than a Raised Air Intake Steve N | 21MY Defender  | 08MY Discovery 3 (history) | 06MY Discovery 3 (ancient history) |
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2nd Dec 2020 10:34am |
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| DSL Member Since: 20 Aug 2007 Location: Wandering the wasteland. Posts: 837 
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And more likely to float away before being drowned.
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2nd Dec 2020 11:14am |
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| Wild Card 90 Member Since: 03 Dec 2014 Location: Gerlingen Posts: 1060  
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RAI´s make good sense.
I´m always surprise how much dust collects in the cyclone filter at the top of my RAI. In summer I empty quite a handful of crud out of it several times per season. Drawing the combustion air from as far away from the ground as possible seems to make good sense. On a vehicle used in seriously dusty conditions off-road (which mine is not), it will save the air filter becoming clogged. I am no expert, but there are a great number of other things you need to raise above the water line before it becomes relevant to fit a water tight snorkel to your Defender. Gearbox and differential breathers, to begin with. Electrics are a major issue. 1998 Tdi 90 SW, 2008 Td4 90 SW, 2012 2.2 90 SW, 2" raised Trailmaster/Terrafirma Heavy Track Raids, 255 MTs, Recaro CSs, anorak, wellingtons |
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2nd Dec 2020 11:45am |
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| DSL Member Since: 20 Aug 2007 Location: Wandering the wasteland. Posts: 837
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Ignoring the new Defender, U have electronics??
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2nd Dec 2020 11:49am |
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| Steve_overland Member Since: 14 Oct 2018 Location: Gaydon Posts: 282 
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Hi all.. I have a 300TDI with a RAI .... but heard a bit of chatter about it affecting performance, don't get me wrong i'm not looking to increase boost or anything, just interested if there is any difference in having one fitted or not..... and if yes is there a way to attach/unattach when needed or not, other than undoing the jubilee clip ??? @steve_overland on Insta.
110 expedition vehicle with pop roof |
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27th Apr 2021 11:31am |
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| zilch Member Since: 11 Sep 2019 Location: Whitsundays & Sydney Posts: 781 
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Fitted the RAI to our P400, not for the aesthetics, but due to the fact on some of the long outback unsealed road
trips we have done in our RRS, the air filter has remained reasonably clear compared to my in laws Nissan patrol on the same trips that required regular cleaning/replacing, they had an aftermarket snorkel, we had the LR RAI for the L320, it does its job, so I am putting some faith in the Deffas RAI to do the same.. 🤞 yet another pommie bar steward down under
MY20 110 P400 SE Defender MY10 3.0 RR Sport Last edited by zilch on 27th Apr 2021 12:03pm. Edited 1 time in total |
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27th Apr 2021 11:58am |
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| Tim in Scotland Member Since: 23 May 2007 Location: The Land that time forgot Posts: 3750 
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Steve I have the Safari Snorkel snorkel on my TDi300 90 and that has a rotatable head and I’ve often wondered if having it facing forwards increase the “ram” effect to the intake and reduces it when the intake is to the rear to reduce dust intake. Only thing I’ve experienced was a very much reduced airflow with it facing forward when the plastic grill was broken and I hit a blue tit that flew up in front of the car and got sucked in through the hole in the grill........ the performance drop was huge and it didn’t do the blue tit much good either. I now have a stainless steel inlet cover on it
Click image to enlarge Pangea Green D250 90 HSE with Air Suspension, Off-road Pack, Towing Pack, Black Contrast roof , rear recovery eyes, Front bash plate, Classic flaps all round, extended wheel arch kit and a few bits from PowerfulUK Expel Clear Gloss PPF to come 2020 D240 1st Edition in Pangea Green with Acorn interior. Now gone - old faithful, no mechanical issues whatsoever ever but the leaks and rattles all over the place won’t be missed! |
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27th Apr 2021 12:00pm |
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| Steve_overland Member Since: 14 Oct 2018 Location: Gaydon Posts: 282
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Ouch bet the blue tit got a shock .... just realised this is a 663 thread.... it doesn’t say in the title... sorry folks... @steve_overland on Insta.
110 expedition vehicle with pop roof |
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27th Apr 2021 12:26pm |
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| camelman Member Since: 27 Feb 2013 Location: Peak District Posts: 3321
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I think on a 300TDI the performance impact of the snorkel is negligible.
The wind direction plays a much bigger part! Mine used to fly with a tailwind  |
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27th Apr 2021 12:54pm |
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| Steve_overland Member Since: 14 Oct 2018 Location: Gaydon Posts: 282
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hahahah yes mine is the same on a down hill........... @steve_overland on Insta.
110 expedition vehicle with pop roof |
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27th Apr 2021 1:22pm |
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| AndrewS Member Since: 10 Apr 2007 Location: Hereford Posts: 3707 
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Did Pate at BAS do a test on RAI and snorkels on his rolling road? Im sure he did and as expected yes they reduce performance. 130's have feeling's as well you know
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27th Apr 2021 5:55pm |
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| blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 16876 
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It rather depends on the starting point. On my 2.4 the snorkel has improved performance considerably when compared to the restrictive, leaky, and chronically poorly-designed factory induction system. Having said that, mine is more a properly-engineered induction system than just a snorkel.
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27th Apr 2021 6:08pm |
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| Stuff Member Since: 06 Feb 2017 Location: Between cradle and grave Posts: 41 |
RAI didn’t prevent Battin tins from appearing in my air filter box. Nor my intercooler. But DSL knows more than me. 🤪
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27th Apr 2021 7:00pm |
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| blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 16876
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Sorry, what are "battin tins"? |
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27th Apr 2021 7:26pm |
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