[Vwdiesel] "controlling" the turbo boost?

[James Hansen]

> --
> [ Picked text/plain from multipart/alternative ]

> Maybe I could elongate the trubo-boost line that goes into the
> top of the aneroid and bring it inside the car.  Then when car is
> under load, and boost is at like 8-PSI or so, I could manually
> "pinch" the line ,(like bending a garden hose) with my fingers,
> effectively cutting off the boost from the turbo going to this
> aneroid thing on the top of the injector pump.
> THAT should tell me if the aneroid is working, shouldn't it?


Why not do a couple 0-60 runs shifting at approx the same spots, average
this, then plug the line, do the same thing over.


>
> If the turbo really does THAT much (I have no idea myself WHAT
> kind of difference I should be experiencing) I should "see" a
> decrease in power/torqe/revs or SOME type of effect shouldn't I ?


It's that obvious.  You are not looking for some subtle nuance of engine
vibration perceptible to only the diesel annointed.  you will feel the
difference through the butt dynanometer.


>
> At least I know the turbo is actually producing
> pressure.................*sigh
>
> Mike
> P.S>-or could the fuel mixture still not be right and this would
> accomplish nothing?

Exactly.

Remember, no extra fuel, makes no extra power. The fuel makes the boost by
spinning the turbo faster by delivering a greater volume of exhaust gases.

You would do well to go to a Bosch shop, get them to up your gross fueling a
bit, and try it again.


When you put the pedal to the rug at 2000rpm, does your car make any smoke
at all?
If none, the fuel settings have been moved lower I would suspect.
-James


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