Dave Hinz wrote:
On Fri, 24 Jun 2005 17:32:01 GMT, CW wrote:
You want something in print, you'll have to dig it up yourself. About a year
ago, there was an interview, on a radio talk show, with the maker of the
carburetor that had so much BS behind it. It was not represented as a "100
hundred mile per gallon" conversion. It wouldn't really improve anything on
a standard passenger car. It was intended for the RV market, where engines
were under a heavy load. The difference was the spraybar. It forced
atomization instead of relying on airflow as in a regular carb.

Yes, that's what fuel injection does - improves atomization. Changes
the surface area:mass ratio of the fuel. If you have unburned
hydrocarbons, that would show up in the emissions. It doesn't,
therefore there aren't massive quantities of unburned hydrocarbons with
which to improve your mileage.


Depends also on when and where they were burned.

The Honda Controlled Velocity Combustion Chamber (CVCC) is (was?)
a very smart approach to fuel efficiency. The cylinder was fed a
very lean mixture--too lean for reliable spark ignition while the
spark plug was housed in a sort of antechamber atop the cylinder
which was fed with a rich mixture. The result was reliable ignition
of the rich mixture at the plug producing a flame front that reliably
ignited the lean mixture in the cylinder, which in turn burned up
the fuel almost completely during the power stroke. Overall the
engine burned leaner, and therefor more efficiently and cleaner
(as Mr Hinz notes the two go hand-in-hand).

My Honda FE got 50-52 mpg on the PA turnpike cruisig with traffic
at about 65 mph. That's a car, not a motorcycle.

--

FF
which received