Re: [DML] Turbo question

[Glenn <green95gst@xxxxxxxxxxxxx>]

You MUST let the turbo cool down before you shut your motor off.  
Fortunately for our cars, the turbos do not spool that much and usually 
take a little more pressure to spool then more modern turbo equipped 
cars.  I have a single turbo Delorean that I normally do not let run 
before turning off, but that is also after driving easy before I park 
the car.  At only 7 lbs of boost and a full spool at over 4k rpm, there 
is not much need to worry about cooling the turbo unless you run the 
car hard then turn it off.  With the ball-bearing style turbos that 
spool much sooner, you have to be more conscious about letting the 
turbo cool before turning it off.

Another place to get oil feed for the turbo is from the oil filter 
housing.  I run this setup on another turbo car that I own and it 
supplies a clean source of oil with good pressure.  Adding a filter in 
the oil line is ok if you have adequate pressure to the turbo and also 
making sure the filter stays clean.  I have seen many turbos get 
destroyed because of clogged inline filter systems.

-Glenn

On Jul 26, 2004, at 6:14 PM, dmcnews@xxxxxxxxxxxxxxx wrote:

> Message: 25
>    Date: Mon, 26 Jul 2004 15:43:51 -0700 (PDT)
>    From: Chris Shepherd <chrisau79@xxxxxxxxx>
> Subject: Re: Re: Turbo question
>
> I disagree. I've got an "Island" setup on my car and it has been on 
> the car for 11 years. I've been the owner for 10. I pull into the 
> garage and turn the engine off. I pull into a parking place and turn 
> the engine off. The only time the turbos' come into play is when I'm 
> passing someone or going up a really steep grade at elevation, the 
> Siskiou Summit for example. The rest of the time they are just idling 
> along with no boost. Yes they are spinning but they are not generating 
> any heat greater than the exhaust passing through them.There is no way 
> I know of to cool them below the exhaust temp. before shutting the 
> engine off anyway.
>
> David Teitelbaum <jtrealty@xxxxxxxxxxx> wrote:What I have seen, 
> usually on race cars, is an accumulater type system
> that pumps up oil pressure while the motor is running and holds it so
> when you first start the motor up it supplies oil under pressure until



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