Re: [DML] Turbo question
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Re: [DML] Turbo question



My DeLorean tends to start quickly and with gusto. This means that the 
turbo is expected to spin prior to engine oil pressure having a chance 
to develope and transfer out to the turbo. There isn't really much that 
can be done about it except to make things as short coupled to the 
source as possible. Filtration could definitly introduce delay.

One good policy however is to provide a droop in the pressure line near 
the turbo. When the line drains at engine shutdown hopefully this 
depression can provide an immediate burst of oil to get the turbo thru 
until the main supply is up and flowing. Try to plumb it such that this 
supply line does not drain when the engine is not running. Prolon oil 
additive is also an excellent product to help extend the bushing life of 
turbochargers.

Don Ekhoff

B BENSON wrote:

>>Something that I've noticed with every single turbo >set up that I've
>>seen installed is dirty oil being used to lube the >turbines. Weather
>>it's a "T" inline from the oil pressure sending unit, or a >pickup
>>line pulling oil directly from the sump. Why? If you >want to prolong
>>the life of the turbos, retrofit your car to supply >CLEAN oil to the
>>turbos.
>>
>>-Robert
>>vin 6585 "X"
>>    
>>
>
>
>
>Where else do you think you'd get oil from? The types of turbos used in the
>kit's that were offered for DeLoreans are the type that float the impeller
>shaft in oil which is flowing through holes in the bushing surrounding the
>shaft. The life of that bushing can be measured in seconds if not
>milliseconds if oil flow is inadequate or disrupted when under boost. Trying
>to install filtering up stream of the turbo or trying to design a separate
>source for the oil shouldn't even be considered as a part of the system.
>
>Bruce Benson
>
>
>
>
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