Fuel Savers

Its been around for many years, and I tested some when they first bought it in, now Im the ultimate sceptic, but some small gains were noticed when used as directed, but saw nothing like the claims the current advertising says.

Its like the HI-clone a lot of balderdash.

Some aftermarket systems improve fuel economy on carburetted engines because they increase turbulence (you could use flywire) which promotes better fuel to air mixing which lets the fuel burn more effectively.Unfortunately the extra restirction usually cuts down the max power because it prevents full air flow at wider throttle openings.

None of this should have any effect on fuel injected engines because the injector spray pattern detrmines the mixing and stuffing in other devices will probably only upset the airflow past the injector which may reduce mixing!

As far as diesels go. All the mixing occurs inside the cylinder and is controlled by the piston and cylinder head shape and stuffing bits into the manifold will only cut down on airflow and potentially cause overfueling.

I find it interesting that these devices never seem to be advertised with indipendant "blind" testing against standard vehicles, but instead rely on testimonials. I know I can increase my fuel consumption by 10% just by letting SWMBO drive. So if I want to show dramatic improvements I let her do the first test??

regards

A

Re. the Hiclone. I'm a sceptic! It seems to me that Hiclones or something similar would be more beneficial on the exhaust side of a head (with a six cylinder you would need six, or maybe seven if you include a larger one further down the exhaust) as there is a lot larger volume of gas needing to be moved through quickly on the exhaust side then on the inlet side. What do others think?
Adrian