Turbo speed sensor ever used ?

[Espen Hilde]

Hi!
I think its very strange that any form of turbocharger rpm or measuring
backpressure in a turbo application is not more used in cars.
A changing backpressure ,depending on the rpm on turbocharger and wastgate,
has a great influence on cylinder filling .A map sensor is not aware of
whats going on , and air volume measuring is missing the right ignition
timing.
Boost VS.backpressure is great to know in development stages.Tells the
efficency
of the turbo used.
Spool up creates more backpressure ,more backpressure ,wants less ignition
advance.
less air consumption .A fast car is living in theese arias all the time .
Just some toughts
Espen 

> >Yes, it's been done. Mostly appropriate when pushing a turbo to the
ragged
> >limits of compression pressure ratio.
> 
> Yeah tah, do you mean as a commercial product or hobby kit or by
> anyone on this group ?
> 
> I'm particularly interested in the sensor physical arrangement, the rest
I
> think I would like to do - so looking for any diagrams/pics of the setup
?
> 
> Tah
> 
> :) mike
> 
>
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