Short Wave Sportfishing wrote:
On Mon, 22 Nov 2004 23:23:19 +1100, "K. Smith"
wrote:

~~ snippage ~~


Sorry to be so long again, but this subject has been a war since 98 &
it seems till Brunswick are all 4 stroke & E-tec has failed it will
continue.


Ah - now I understand the reasons for your antipathy towards FICHT.

NIcely put by the way. I don't agree based on my own personal
experience with FICHTS and what I know about them pre/post-OMC, but
you have reasons and that's fine.

It was interesting. :)

I'm curious though. Your argument about diesel makes some sense -
essentially, FICHT (and Etec for that matter) is diesel technology.
Without going into a long treatise on the subject, I assume your
contention is that FICHT is not a true two stroke and as such,
problematic in the long run?

No Ficht, Opti, E-tec, Yamaha dfi, are 2 strokes & as such if fed more
normal mixtures "&" the piston's temp controlled then it would/should
survive as well as other 2 strokes.

The Yamahas have been interesting & somewhat more successful, they've
had to resort to 800 psi & in one case 1000 psi petrol injection!!! so
they can get enough atomisation to allow the lean mixtures to burn more
predictably, also even they don't use mixtures as lean as Ficht & Opti.
They randomly shut cyls down at low/med revs, so their aggregate EPA
count still passes, but the pistons don't have to see such extremely
lean mixtures/heat.

It's probably relevant to mention & remember that right throughout the
Ficht debacle & to a lesser extent Opti, they were making almost
identical if not exact same engines, same parts, castings etc, Carbed
Johnsons or EFI Mercs, yet only the Fichts or Opti DFIs failed..... why??

OMC were pushing the 2 strokes at 500cc per cyl that's getting to the
limit, notwithstanding E-tec are going to try even bigger:-) (sorry
that's a cheap shot Tom:-)) Again no secret knowledge involved here it's
well known & understood that the bigger a petrol 2 strokes cyl gets the
more difficulty it has dispersing heat out of the piston. All the high
performance petrol 2 strokes have lots of small cyls. Even Clam's
beloved old Mercs, which have to be the most successful 2 strokes ever
built, had lots & lots of tiny pistons with very low cyl pressures.

I know my view on this is against you Tom & I do apologise but as you
can see I have copped an endless flogging mainly from Krause & the
dealers, so when we were confirmed as right most of them just ran away
leaving the people they'd conned holding the blown engine so to speak.

K


Later,

Tom