[Vwdiesel] Add just turbo to NA?

[Andrew .Libby]

Yeah, that's an ECOdiesel, the low-point of vw turbo-diesel design where
emissions ruled completely at the expense of efficiency.  Kinda like the
mid-80s carbed vehicles with the air pumps that robbed crankshaft power to
dilute the exhaust with more air [facepalm].

On Fri, Mar 30, 2012 at 5:41 PM, Roger Brown <r.c.brown at ieee.org> wrote:

> Isn't that basically the eco-diesel setup?
>
>
>
> On 3/30/2012 5:36 PM, Tad wrote:
>
>> I know I'm not the guy you asked to hear from, but what do you hope to
>> gain from adding air but not fuel?  I guess it will help burn fuel
>> more completely a little bit under otherwise-smoking conditions, but
>> the rest of the time it's just an obstruction in the exhaust, right?
>> All else being equal, adding air isn't going to help if you don't add
>> fuel too.
>>
>> On Fri, Mar 30, 2012 at 3:43 PM, Doyt W. Echelberger
>> <doyt at buckeye-express.com>  wrote:
>>
>>> Has anyone added a turbo to a naturally-aspirated 5 speed 1.6 VW diesel
>>> from
>>> the 80's, without using special TD injectors and the TD injector pump
>>> that
>>> enriches under boost? I call this a partial conversion.
>>>
>>> Without a turbo, the car (89 Jetta 5 speed at 104k miles) seems to be
>>> working pretty hard between 45 and 70.
>>>
>>> I am looking for actual experience from people who have done a partial
>>> conversion (Rabbit or Jetta) and driven it for a few years.
>>>
>>> That's the main question. I know how to do the mechanical swap,  but
>>> would
>>> be interested in any unexpected problems you encountered in fitting the
>>> TD
>>> parts to the NA block and exhaust pipe.  But mainly I'm looking for how
>>> it
>>> ran after the conversion....at idle, at slow speeds around town, and at
>>> highway speeds 45-70 mph. (I would expect it to run about the same at
>>> idle
>>> and around town, and I _hope_ it runs easier on the straight and level
>>> between 45 mph and 70mph.
>>>
>>> I wonder if it might also run a little cooler and easier at highway
>>> speeds....and maybe get a little better fuel economy?
>>>
>>> If some of that isn't the case, I don't think I want to do the
>>> conversion.
>>>  I don't want to burn the valves and pistons in the process. So tell me
>>> if
>>> any of that bad stuff happened to you.
>>>
>>> After putting in the time and money to do the conversion, did the car run
>>> significantly better? I already have the conversion parts sitting on an
>>> 85
>>> Jetta TD that is headed for the scrap yard. All I need to do is pull the
>>> turbo and the manifolds and swap them onto the 89 na Jetta, along with
>>> the
>>> oil pan and the oil cooler adapter. I could also swap the TD injectors
>>> and
>>> the TD injector pump, but they both have 200k on them and probably need
>>> rebuilding. I know the TD pump leaks from the TD boost tower...about a
>>> drop
>>> per second.
>>>
>>> But if I add the TD injectors and a rebuild TD pump, the cylinder temps
>>> and
>>> exhaust gasses will probably run considerably hotter and I'll run the
>>> risk
>>> of melting a piston or burning a valve....and I can't easily swap in the
>>> factory TD oil squirters that cool the pistons.
>>>
>>> So, I'm looking for some advice from people who have been there and done
>>> that.  Loren already replied when someone ask the question in October of
>>> 2001, so I know I _can_ do it and it will run. Now I'm interested in HOW
>>> yours ran and what people learned from having done it.
>>>
>>> Doyt Echelberger
>>> Living in Ohio flat country at about 500 feet above sea level.....with
>>> diesel at $4.08 today.
>>>
>>>
>>>
>>>
>>>
>>>
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>>>
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>
> --
>
>  Roger
>
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