Stock fuel injection / 034 EFI

[Jim Green]

--- Marc Swanson <mswanson at mswanson.com> wrote:
> > >> however, or
> > >> an additional driver can be purchased for about
> $200 that can be
> > >> programmed to control idle settings.
> > >
> > >from where?
> >
> > Basically you can use the supplementary controller
> to control the ISV,
> > precisely mapping duty cycle based on MAP and RPM,
> lemme know if you want
> > to talk more.
>
> very clever, makes sense.. driving an ISV instead of
> an injector. Obviously I
> want to tune the hell out of my car first and see
> how I feel about the idle
> then.
>
>
> > >I know the main pricing problem is that 034 is
> fairly low volume, but as a
> > > comparison the SDS EM-3D goes for about the same
> $$ and has an output to
> > > drive an ISV.
> >
> > Ah ha, but read more closely, the SDS is a simple
> device, its only
> > controlling two preset solenoids, they are either
> open or closed, and you
> > don't get to necessarily even choose what RPM.  It
> is not a sophisticated
> > device like the stock ISV:
> >
> > "On most engines, the solenoid allows the engine
> to achieve between 800 and
> > 1500 rpm during the warmup cycle. Installation
> requires running 5/16 vacuum
> > hose from the air filter to the solenoid and from
> the solenoid to the
> > intake manifold. The control system is either on
> or off. There is no
> > proportional control of rpm. "
>
> whoops, I stand corrected on SDS then.  that does
> sound pretty ugly.
>
> > >Now, all that said, 034EFI is a great system and
> I look forward to tuning
> > > the car as time permits!
> >
> > Well good, lets hope it doesn't sit around idling
> much anyway, mine doesn't
> >  ;)
>
>
> well it kind of has to for right now, it is up on a
> set of jack stands with
> various bits (upper and lower core support, oil
> cooler brackets, etc) waiting
> for powdercoat till' it hits road.
>
> Later
>
> -Marc-
> 87 4ktq
> 88 90q


I personally love the auxillary air valve.  It kind of
goes along with keeping the engine compartment as
simple as possible.  The ONLY time I don't like it is
when I'm farting around and leave the ignition on when
the car's cold.  Then when you go to start it, the
valve is already warm so no air flows through it.
Nothing 15 seconds of babysitting the throttle doesn't
fix.

Now, back to playing with my new EGT gauge.......OK,
while we're on the subject of tuning all you guys with
similar projects have to get one of these.  From my
first readings, I can see that I've got a little more
tuning to do on a motor that appeared to be running
great.  BTW, thanks for the info on that Westach EGT
Javad, it works great, and really matches the VDO
gauges!

Later,

=====
Jim Green
'89 90tq EFI
http://www.geocities.com/jeg1976/car_home.html

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