Re: [DML] Lambda system

["content22207" <brobertson@xxxxxxxxxxxx>]

I tried to reply to your invective, but the message was either lost in
the ether or disproved by the moderator. I'll assume the former and
try again:

Eurospec K-Jet offers many "improvements" (I put that word in
quotation marks because they actually predate F Series):

Eurospec CPR's start with a lower control pressure and take longer to
warm up. This improves engine performance in adverse atmospheric
conditions, such as moisture or cold. Final control pressure is of
course identical to F Series. Eurospec CPR's are much simpler than F
Series. Those with throttle enrichment respond directly proportionally
to manifold vacuum pressures (no thermal cutoffs or delay valves).

Eurospec ignition distributors have a much steeper advance curve. This
puts base timing much closer to TDC (more compression before
ignition). Increased compression of course yields more power from the
combustion -- same effect as forced induction. The steep advance curve
also makes Eurospec PRV's freer rev'ing. Note that overall compression
is higher (taller pistons). Note also that Eurospec ignition
distributors also respond directly proportionally to manifold vacuum
pressures.

Eurospec fuel injectors *ARE* metered higher. Don't have my Volvo
manuals with me, but I do remember reading more volumetric output for
given pressures than F Series. You can't have higher compression and
ignition closer to TDC without running a richer mixture (why do you
think North American specs were dumbed down in the 70's). Eurospec
octane requirements are higher as well. Note also that Eurospec PRV's
don't have EGR (neither does DeLorean I know, but it was standard on
Volvo F Series) -- yet another attempt to lean the fuel/air mixture.

I sincerely hope my first reply was lost. It was worded as neutrally
as this one, despite the quite unfriendly tone of your post and
others. Surely a moderator wouldn't let them through, then quash
neutral replies.

Regarding your criticism that I "just rattled off a load of
differences" -- please reread Farrar's original message. He merely
asked what your Eurospec installation looked like. You only mentioned
a few observable differences. I filled in the others. Performance
wasn't the concern being addressed -- observable differences were.
Hopefully the above adequately addresses YOUR (not Farrar's)
performance question.

I would have thought the above was already common knowledge. You often
mention that your Eurospec DeLorean produces 160 HP. Now you know why.

Bill Robertson
#5939

>--- In dmcnews@xxxxxxxxxxxxxxx, Martin Gutkowski <martin@...> wrote:
>
> You've basically just rattled off a load of differences. With the 
> exception of the idle control takeoff, none are "improvements" and many 
> are because it's from a LATER engine, like the ally metering head,
whose 
> only real advantage is weight and that it doesn't go rusty. To all the 
> others...... so what?
> 




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