[DML] Re: Reversing Carburetion (David T)

["content22207" <brobertson@xxxxxxxxxxxx>]

Perhaps you misunderstand:

Carbureting a PRV is *NOT* a permanent modification. All of the K
jetronic plumbing and filter/accumulator are still under my car, with
the hoses tied together at either end to keep contaminants out (ran a
new fuel line directly from front to rear). My current heads have no
injector bungs, but if they had I would've simply plugged them with
bolts in the boots (stainless button heads would look nice). My fuel
pump sits in a standard tank boot, connected to factory wiring.
Converting back to K Jetronic would be as simple as:
- Placing a FI manifold on the engine
- Attaching a fuel/air mixture unit
- Replacing bolts with injectors in the head bungs
- Replacing low PSI pump with a high pressure model
- Reconnecting hoses, CPR, etc

I did shorten my factory throttle cable, but with more time I could
have made a custom one and set the original aside.

Note also that my current water distribution pipe was never drilled
for various sensors -- would need to be modified or replaced if going
back to CIS and Lambda Sond (which of course I have NEVER had anyway
-- block that came with the car was Z7V / B27E).

Exclusive of the manifold/carb adapter, cost of a carbureted
conversion should be slightly more than $200:
$150 rebuilt carb
$13 low PSI pump
$50 hoses, clamps, fittings
$10 generic air filter housing
$10 air and fuel filters, PCV valve
$15 custom throttle cable
Quite a bargain compared to what some people spend on K Jetronic.

Time is definitely not an issue. I did spend a Saturday making my carb
adapter, and figuring out what to do with the fuel pump took a while
to engineer (less than an hour to manufacture), but bolting everything
up in the final installation probably took 15-30 minutes. Remember: I
can pop my intake manifold off WHILE pumping gas. Longest part of the
actual installation was running the new fuel line. 

Just suppose Dani gets his hands on a manifold & adapter ready to bolt
up -- what harm could there be in laying K Jetronic aside for $200 and
a weekend of labor (most of that REMOVING the FI)? If he doesn't like
the results, he *CAN* convert back. If the car is sold with
carburetion, the K Jetronic components he set aside *CAN* go with it
for the next owner to use. 

Re: Rebuilding the carb -- if/when the time comes, just swap it for
another rebuilt unit. They're only held down by 2-4 bolts, depending
on the model. Rebuilt carbs come with a year warranty to ensure no
bugs in the rebuild.

Bill Robertson
#5939

>--- In dmcnews@xxxxxxxxxxxxxxx, "David Teitelbaum" <jtrealty@xxxx> wrote:
> 
> 
> I did not mean to leave the impression that you shouldn't put a
> carburator on your car. Your car is to do with as you wish. What I
> mean to say is that for all the time and money it will take to do it
> would probably be better spent trying to get the origional systems to
> work properly. Just think, someday you may want to sell your Delorean,
> I would ask you what a Delorean with a carburator is worth? Who will
> know  how to service it? Where do you get parts for it and what kind?
> Part of this kind of conversion is documenting everything you do so
> you can go back yourself if you ever need to or even for a future
> owner. Imagine what you will do if you forgot what you did and didn't
> know what kind of kit to get to rebuild the carburator? You can't call
> a vendor for help, they wouldn't know where to begin! When you take
> the "road less travelled" you had better be prepared to help yourself!
> When all of the systems on a 20 year old Delorean are set up and
> running right I do not think you will be able to duplicate the
> performance with a carburator. The origional systems also will stay in
> tune for a long time, just not 20 years without *some* maintainence.
> Fuel injection is a little fussier about stale or dirty fuel. Once you
> go over the fuel system and get it all cleaned up (and use the car at
> least once in a while) The fuel system is pretty reliable. I agree
> that to put a full-blown engine management system onto a Delorean is
> not the "cheap" way to fix things and it probably won't improve the
> performance all that much.
> David Teitelbaum
> vin 10757 
> 









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