Page created: 2-Dec-03
|Technical: Discovery I|
raised air intake, or snorkel, seemed like a good idea for a number of
reasons. Firstly, I have in the past damaged a Land Rover engine with
over-enthusiastic wading, although I’m not particularly keen to plough
through bonnet deep water just for the sake of it. Secondly, at the time
I was just about to head off to Morocco, which is a notoriously dusty
place to drive through. When driving in convoy the air at roof height
tends to be less dust laden than lower down so drawing in air higher up
is better for the engine. It also tends to be cooler than under the
bonnet, which can offer an advantage to a turbo diesel, as cooler air is
denser and therefore provides more oxygen for the combustion process.
choice of which snorkel basically comes down to two options. There’s
the metal ‘drainpipe’ type as fitted to Camel Trophy Discoveries, or
there’s the injection moulded plastic type, which is a more recent
development. Although there are a few variations now available from a
number of different companies, at the time I was choosing it was either
Mantec for the former or Safari for the latter.
chose to fit the Safari snorkel, which I purchased from Terrain Master.
It appeared to me to be the best thought out kit as it was purpose
designed for the Discovery, whereas the Mantec type is essentially a
development of the installation designed for the Land Rover. It looks
was fairly straightforward, although cutting the large hole in the wing
of what was otherwise a pristine vehicle was a bit nerve racking! The
kit and instructions are very comprehensive though and the job was
completed in about 2 ½ hours.
I fitted the snorkel I noticed a distinct increase in performance, which
I initially put down to the intake being less restrictive than the
standard arrangement. However, other people that I know who have fitted
the same kit have not always seen the same improvement so I now suspect
it’s just as much dependent on the state of tune of the engine.
Otherwise, the snorkel has performed extremely well. During the Morocco trip I periodically checked the air filter and there was very little evidence of dust contamination, whereas others on the trip had to unblock air filters on a number of occasions.