[DMCForum] Continued: Throttle Plates/Manifold Vacuum (Martin Gutkowski)

["content22207" <brobertson@xxxxxxxxxxxx>]

Full throttle microswitch has absolutely nothing to do with the CPR,
which as you recall is where this current thread took off (you
complained about me calling the vacuum attachment on a 038 Series CPR
"full throttle enrichment").

1981 E series Volvo had no full throttle microswitch (because it had
no Lambda -- duh). Fuel enrichment was provided by simple vacuum drop
on the CPR. I'll get someone to scan pertinent factory manual pages if
you need further proof.

Bill Robertson
#5939

>--- In DMCForum@xxxxxxxxxxxxxxx, Martin Gutkowski - DMUK
<martin@xxxx> wrote:
> Bill.
> 
> The DeLorean has full throttel enrichment via a microswitch. The CPR 
> vacuum enrichment is a curve relative to manifold vacuum. It has
nothing 
> to do with full throttle other than that it is a point on the curve.
> 
> You used the word "advance" when talking about mixture enrichment. Why?
> 
> When talking about tehcnical issues, it's very important to use correct 
> terminology.
> 
> Martin
> 
> 
> 
> content22207 wrote:
> 
> > The throttle plates open up, manifold vacuum drops, need I say more?
> > (That's fuller to full throttle in my book).
> > 
> > Using manifold vacuum to measure throttle plate activation is hardly a
> > new a new concept. Engine manufacturers were doing it more than half a
> > century ago. And what do you suppose drove all that Rube Goldberg crap
> > American manufacturers overlayed their engines with in the 1970's? As
> > manifold vacuum dropped, indicating the car was no longer idling in
> > California traffic, everything that wasn't nailed down was thrown into
> > the engine (EGR, gas tank vapors, carb bowl vapors) and the smog pump
> > was turned loose on the exhaust.
> > 
> > I'm beginning to think that if I merely mention peas and carrots you'd
> > complain I wasn't using the proper terms "legumes" and "umbella". Urp?
> > 
> > Bill Robertson
> > #5939
> >

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