Snorkels and performance???

its like tire threads, and power up threads, and hyclone threads

if you believe it went better, it did..

yep, you are experiencing Ram air effect!


Next thing you know you'll be smoking it up at the traffic lights and cruising to Maccas carpark with all the cool kids!



seriously, assuming that you have a ram snorkel head, there is a slight effect on performance.

Hows it going Luke ,

When I installed my snorkle ,I had to remove part of the origanal inlet system in the inner guard. It was a metal pipe with a crusty thick piece of foam over the end .My one was very clogged up.

Does the 4.2 have this as well ?

I reckon my Patrol was better with the foam off only !

Glenn

Check the archives as this has been covered before. I think the general concensus is that it does increase power slightly, proven on the dyno. Probably mainly from a less obstructed air intake.

A nice big, straight through air intake is better than the air having to be sucked through tiny openings under wheel arches then trying to find a way into the engine.

Barnesy

I would strongly suspect that you are hearing a change in the intake noise. A more "throaty" sound is making you think the engine is more powerful.

What you get is cleaner air, because your air intake has been removed, from under your guard, near hot road surfaces, to a higher slightly cooler point. You may experience a slight increase in power, due to that.


You may need to consider that the motor still has to suck air into it, not force ( super-charging ) to get it to work.

Your air cleaner will stay cleaner longer, ( mine did, even in the outback ) and hence a less resticted air/fuel mix..

Sounds good ?? now I'm confused
Cheers
Bucky

if your engine is controlled via a ECU jumping in and driving it straight after fitting it wouldnt make any difference at all the ECU controls fuel/air and will only take as much as it needs, however after a small period of time when your ECU "learns" you may see a slight increase in performance.

you could reset your ECU to speed up the process, bum dyno is the best though :)

Performed better, or louder??? Could be a bit confusing with the extra intake noise next to your head.

Having said that it would be taking in cooler air along a long tube so you might get a bit of "ram effect" into your intake rather than taking in stagnant air from under guard

I tested my snorkel on my range Rover Classic V8 with a minihelic vacuum/pressure gauge attached to the input hose just prior to the MAF.
At 80Kmh there was positive pressure of about 0.5 inches of water vs 11 Inches of water vacuum at full throttle second gear up a hill.
So there is a TINY ram effect from a snorkel, which really does nothing in a throttled petrol engine, and would not do much in a diesel..
Regards Philip A

In a similar vein I have noted a marked increase - 0.4 l/100km - in fuel consumtion in my 06 Hilux TD (note the consumtion figures appear pretty accurate from the standard computer) as the air filter gets dirty. It would therefore appear quite reasonable to me that one might expect a slight improvement in performance from a small improvement in airflow. I look forward to convincing SWMBO of the merits of a snorkel, especially one of the funky new flush type ones. The 3 inch pipe and chip may take a bit more work, however. Any suggestions gratefully received.

John.

Pajeros have the air intake in front of the radiator and then it leads to a Cyclonic Pre-cleaner - which will never clog up - as long you occasionally clear out the collector.

I assume when a snorkel is installed they throw away the precleaner because its too hard to refit. No doubt they argue that a filter sock does as good a job. Well the holes in the filter sock need to be big enough to let air through and that means any dust smaller than the holes will get through.

When I clean out the pre-cleaner collector I mostly get extremely fine talcum-powder-like dust, so it's obviously removing extremely fine dust.

As for a Snorkel providing cleaner air - when I look along a dusty road, I've never seen any great difference in dust thickness between 1 metre high (standard air intake) and 1.8 metre high (snorkel intake).