[Diy_efi] How to read turbine RPM

[Mike]

Yeah I like this variant, paint one side white reflective to IR
and the other sides absorb IR (black) and a simple reflector
type module at right angles - needs a hole in housing but thats
a minor issue...

So anyone know of enamel paints with known IR reflectivity
constants ?

rgds

mike



At 04:43 PM 6/1/2003 -0700, you wrote:
>I can't find the website, but I did see where a guy was using an optical
emitter/detector and reflecting off the flat of the nut on the compressor
end of the shaft.  If I remember right, he tapped a
>small hole into the inlet housing to mount the emitter/detector gadget.
>
>Scott.
>
>
>> > > " For this to work optimally you'll need to use a turbo speed sensor  "
>> > >
>> > > Would  like to know how to read turbine RPM especailly from non
magnetic
>> > > compressor / turbine wheels.
>> > >
>> > > Can you offer any info / links on how it is done.
>> > >
>> > > Thanks
>> > >
>> > > Hugh
>
>
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