snorkel and turbo diesel

My fuel consumption increased, albeit only marginally, after installing a snorkel.

Apart from performance , snorkels can increase induction noise in the cab, especially with a diesel.
Regards Ken.

No experience myself but a chippie mate with a 3l patrol ute says his fuel consumption improved 10% - mostly highway running

depends on the way you fit up the snorkle
1. if you leave all the baffles and air dam boxes of the original induction systes and feed the snorkle into them you increase the suction on the turbo-Result may increase fuel usage at low speed marginally but will not increase the cabin noise by much
2.chuck out all the plastic bits from under the guard and connect the snorkle direct to the air cleaner - Result slightly more power at speed ,may improve fuel use and increases cabin noise
I opted for option 2. but mainly because the all the possible extra places to get water leaks in the original induction system most bits are just pushed together and not sealed properly the small increase in cabin noise is a small price to pay for the comfit of knowing i have the minimum places to get water in
Also depends if you do heaps of water crossings ? I have water over the bonnet quite often
Regards Kev

I am thinking about doing this myself, what brand snork are you getting?

I played arounbd with cold air induction on a few cars (petrol of course) and couldn't see the harm in providing some extra cold air to my TD. I saw no advantage in the air being taken in from behind the head lights through a gap the size of a golf ball and the advantage of the larger volume of air entering directly though the snorkel intake with a surface area twice that of the original system.

Plus you go through water with more confidence!

PS. I get no induction noise either.

Put a snorkel on the 3ltr Nissan and tried hard to find a decrease in fuel consumption. Really made no difference, but did increase the induction noise.
Cooler air from higher altitude would also seem to be a good sales pitch, like its going to be cooler 1 meter higher!

Will help with hydraulic lock so long as all the connection points are water tite.

Regards
Mike