Fuel Saving Devices

[macca]

I have not got one of these snake oil devices, to me logic eliminates the hiclone as the turbo swirls the air as previously stated (it may well spool faster, I would need proof), the intercooler probably straightens it out again.
Then the air rushing past the inlet valve would stir it up again, and as others have said the head combustion chamber design will look after the rest.. and surely they block air flow in the induction system.

A few years back a bloke was flogging a device to put in the fuel line, it had tin (I think) pellets that rubbed against each other as the engine/car shook/moved during normal use.
It added tin to the fuel which was supposed to help with effeiciency etc.
He said it was used during the 2nd World War on fighter aircraft as fuel was lacking something ("low grade Russian fuel")in those days and this helped control temps, economy and power.
Another snake oil product? With magnets and Hiclones are they a snow job or do they work?

Found a web page;
http://www.fuelmate.com.au/
It has magnets as well...