Short Wave Sportfishing wrote:
On Sat, 14 Jun 2008 11:09:41 -0400, Gene Kearns
wrote:

In spite of Evinrude's claims, no fuel system provides increased power
and better fuel consumption.... by definition. You increase power by
burning more fuel in the engine.... either by supercharging, larger
valves, tuned intake and/or headers, increased engine size, etc....
but you can't get something for nothing.

Those things we can't understand we brand as improbable, that which is
improbable become impossible.

It's not something for nothing - it's just more efficient.

When you consider all the electronics associated with the fuel/oil
delivery system, the EMM management that takes into account air
pressure/air temperature/water temperature, variable timing based on
RPM and controlling the injection timing you've developed a management
system that allows for efficiency. You are absolutely correct that
you use more fuel at higher rpms, but you use that fuel to obtain the
maximum effienciey. The two stroke engine is much more - um - er -
adaptable to this approach.

Four stroke manufacturers have been aware of this for years -
introduce the same type of systems to a four stroke engine would
create higher efficiencies than that gained by ETEC believe it or not.
The problem is that the costs involved in creating this monster would
drive the manufacturing cost up where even the Japanese price supports
would collapse and then ETEC would have the economic advantage. :)

Be that as it may, I've been asked off line by a bunch of people to
drop the subject because it gets Harry's undies in a bunch so I will
comply to keep the piece. :)

Speaking of which, you going to be around sometime mid-Julyish? I'll
buy the gas and we can head out with your four strokes and do some
fishing.


Nice try. Your endless totally unsubstantiated claims about the "fuel
efficiency" of eTecs just make me giggle, as do your unsubstantiated
claims about eTec market share.

Anyone with any understanding of outboard motors who reads through the
various performance bulletins available on engine/boat combos can only
conclude there are very minor variations in the results available with
the various brands of modern engines, two stroke or four stroke, on
similar boats.

You apparently believe the "hype" in the Evinrude infomericals. Your
privilege. The reality is, what is presented in that commercial is
totally unscientific information, unscientifically presented, and you
bought into it. Considering your background, that's sort of surprising.

What matters to me, mostly, with my outboards is that they start and run
smoothly when I turn the key, and that they are quiet and relatively
fuel efficient. In my experience, you can't beat a four-stroke for that.
I used to be a believer in two stroke outboards, but not any more.

I did enjoy this comment from you, though:

"When you consider all the electronics associated with the fuel/oil
delivery system, the EMM management that takes into account air
pressure/air temperature/water temperature, variable timing based on
RPM and controlling the injection timing you've developed a management
system that allows for efficiency."

Maybe. More likely, you have a "management system" that is doomed to
fail at some point with catastrophic results and a huge repair bill.

Enjoy.