GU snorkel and bar

Submitted: Monday, May 17, 2004 at 20:19

ThreadID: 12949 Views:2426 Replies:4 FollowUps:5

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Shagga

Can anybody tell me if there is a difference in performance between Safari and Airtec Snorkels or is it purely asthectic. I have just purchased a 98 GU and are about to fit a snorkel and bar. The bar I have at this point favoured is the ARB Delux winch bar but I am still undecided about the Snorkel. The other issue I have is the vehicle is dual fuel and all the plumbing is sitting where a second battery would normaly go, in the top right corner of the engine bay. My question is, has anybody overcome this problem? My current train of thought is to place the battery in the rear of the vehicle and shorten one of the draws in the storage unit when I have one fitted.
Any suggestions would be great.
Thanks Shagga.

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Reply By: chrisfrd - Monday, May 17, 2004 at 20:32

Monday, May 17, 2004 at 20:32

G'day there,

On Dual Fuel vehicles, the gas adapter typically fits up on the right, where the spare battery goes, but you can move them fairly easily by getting a gas fitter to fix it to the left hand side. This fixes that problem!

The snorkels are just simple products. They can't really "improve" the vehicle's performance, only degrade it very-slightly by affecting the aerodynamics. The major feature of a snorkel is to lift the air intake well above anyones waterline. This can solve heaps of problems over water crossings.

My hint is to pick the cheapest one that looks right. I have an Airtek, but really, the Nissan one was the best, as it was slim-line and asthetically pleasing.

AnswerID: 58971

Follow Up By: Shagga - Monday, May 17, 2004 at 21:04

Monday, May 17, 2004 at 21:04

By the Nissan one do you mean the Safari that is shaped around the flare to form a triangular shape, or do Nissan have a model of there own?

FollowupID: 320646

Follow Up By: chrisfrd - Monday, May 17, 2004 at 21:39

Monday, May 17, 2004 at 21:39

The Nissan unit, made by airtek me thinks, is totally different in design to the standard safari and Airtek units.

The Nissan units slope up the windscreen frame from above the side-indicator beacon. The snorkel intake sits above the roof line, collecting the air from the high-pressure point above the windscreen.

I don't think that it does anything fantastic, but it certainly is better than paying for a new engine!

FollowupID: 320654

Follow Up By: Shaker - Monday, May 17, 2004 at 23:00

Monday, May 17, 2004 at 23:00

Surely the air taken in thru a snorkel would be cooler than under bonnet air! In which case it would be far richer in oxygen.
I am also trying to establish which brand of snorkel to fit, I was told by Airflow Snorkels, that the Safari collector has far better dynamics than the Airtec, increasing rather than hindering air flow.

FollowupID: 320663

Follow Up By: chrisfrd - Tuesday, May 18, 2004 at 07:12

Tuesday, May 18, 2004 at 07:12

Ok.

Think about this....

Turbo-charged Diesels, even with intercoolers, the intake tempurature is around 45-60 degrees, due to compression artifacts and heat-soak in the turbo and other components.

So, When I installed my system, I tested my intake tempuratures. On a 2.5 degree night, the intake temps were 43 degrees (fast idle for 20 minutes)

I put my snorkel on, with a Unifilter (my set up!) and again tested my intake tempuratures. The intake temps were down .1 degrees! This wasn't on cablibrated equipment, so I could not even say that this was an improvement, as the device was not accurate.

With this, the intake tempuratures haven't changed at all, the density of oxygen hasn't changed.

The improvements that I've seen are with the lovely induction noise, the sounds that the turbo makes through the snorkel/filter and the fact that I am not going to have a dead engine come water-crossing time!

Chris