[DMCForum] Re: Re De-activating lower chambers

["content22207" <brobertson@xxxxxxxxxxxx>]

Obviously a DeLo works just fine at those times frequency valve is at
minimum input to lower chambers (max richness). Why wouldn't simply
leaving them empty accomplish same thing permanently? Of course CO2
screw would need to b adjusted accordingly.

Wasn't planning to do anything with my new engine when I get it home,
but now feel challenged! Since the frequency valve has been physically
given away have no choice but to run engine as I theorize. Will build
a cradle to hold it still, rig up an old Ford DuraSpark, and see what
happens.

All I need is a fuel pump...

Oh, an exhaust manifold for cylinders 1-3 would be nice too but not
mandatory.

Bill Robertson
#5939

>--- In DMCForum@xxxxxxxxxxxxxxx, "John Hervey" <john@xxxx> wrote:
> Bill, There is a difference between the Lambda version and Non
Lambda for
> the FD. I just had my builder build a Non Lambda version for a turbo
> delorean out of a Volvo Turbo dist that has top port adjustments.
There is
> more to it on the inside than you think for fuel flow.
> John
> 
> 
> 
>   -----Original Message-----
>   From: content22207 [mailto:brobertson@xxxx]
>   Sent: Wednesday, November 12, 2003 7:25 PM
>   To: DMCForum@xxxxxxxxxxxxxxx
>   Subject: [DMCForum] Re: De-activating lower chambers
> 
> 
>   "Rich, cross over to the Dark Side..."
> 
>   Unless somebody can explain otherwise, makes sense that removing
>   frequency valve altogether will simply allow upper chambers to flex to
>   maximum size (as if Lambda were metering rich) and stay there. Could
>   then adjust CO2 screw accordingly.
> 
>   May be a metal plate in my R30 distributor too, just without any sort
>   of access to its underside (lower chambers). Am not about to open the
>   thing up to find out.
> 
>   Distributor on my new engine looks just like stock DeLo. Even has port
>   for a frequency valve (you of course have the valve itself -- keep
>   it).  If I can block the thing up well enough at home to run on the
>   ground will experiment with de-emissioning and post results. Anybody
>   have an old fuel pump I could borrow?
> 
>   Bill Robertson
>   #5939
> 
>   >--- In DMCForum@xxxxxxxxxxxxxxx, "cruznmd" <racuti1@xxxx> wrote:
>   > As usual, you saved my bacon Bill. Thanks.
>   >
>   > BTW, Walt brought up a valid question. Your fuel distro is different
>   > than ours. Aside from missing ports for lambda equipt. you said that
>   > you didn't think yours had "lower chambers".
>   >
>   > Basically, my question is can this still be done with that fuel
>   > distro? Is yours a Renault or Volvo or what?
>   >
>   > I'm not looking to become a convert just yet, but since you've had
>   > such success with your system, it's good info to have.
>   >
>   > --- In DMCForum@xxxxxxxxxxxxxxx, "content22207"
<brobertson@xxxx> wrote:
>   >
>   > > I maintain that de-emissioning a DeLo is as simple as:
>   > > -Replacing dual banjo bolt on fuel distributor outlet with
single bolt
>   > > (just like inlet) for tank return line only
>   > > -Capping lower chambers off with an 8x1mm bolt to keep clean
>   > > -Removing frequency valve (and hoses) and giving to some other
>   poor soul
>   > > -Removing Lambda ECU and giving to some other poor soul (which has
>   > > side benefit of more room in driver side vault)
>   > > -Replacing O2 sensor with a short thread bolt (to eliminate any
>   > > protrusions into exhaust stream)
>   > > -Gutting catalytic converter or replacing with a pipe (IF you can
>   > > match 4 bolt flange)
>   > > -Adjusting CO2 screw for constant upper chamber volume in fuel
>   > distributor
>   > > -Driving car for hundreds of thousands of miles with following
>   benefits:
>   > > --NOTHING screwing with fuel metering except your foot on the
pedal
>   > > (warm up regulator nothwithstanding)
>   > > --Much cooler exhaust
>   > > --Much less exhaust back pressure
>   > > --No melted rear fascia
>   > >
>   > > Only disadvantage: standing outside State Department in the rain,
>   > > getting yelled at by overzealous security guards WHO DON'T
EVEN HAVE
>   > > GUNS, waiting to give your old emission components to a poor
soul who
>   > > refuses to give up on what should never have been put on car
to begin
>   > > with.
>   > >
>   > > But we love you Rich and I'll do it again when I de-emission
my second
>   > > DeLo.
>   > >
>   > > Bill Robertson
>   > > #5939
>   > >
>   > > >--- In DMCForum@xxxxxxxxxxxxxxx, "Walter Coe" <Whalt@xxxx> wrote:
>   > > > > Of course he could always rip that crap off instead...
>   > > >
>   > > > Damn I'm glad you aren't a surgeon. :-)  Bill, I can only
>   > > > imagine how much harder it would be to get the engine
>   > > > running well if he "ripped that crap off".  Even if he
>   > > > started with a factory original engine that is running well,
>   > > > it would be a challenge to de-emission it AND still have it
>   > > > run well afterwards.  Maybe we could get Martin to show his
>   > > > procedure for changing to a Volvo metering head.
>   > > >
>   > > > Of course in the case with your car, you are dealing with an
>   > > > earlier version of the engine that was not transplanted
>   > > > completely by the previous owner.  I haven't seen a car with
>   > > > a manual choke since my Dad's 1930 Model A Ford.
>   > > >
>   > > > Walt
> 
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