Looks like I can't embed videos on the forum, so you'll need to follow the link to where we uploaded it on Facebook.
http://www.facebook.com/video/video.php?v=10150428021423906
Yes, we'll put some better covers on that test rig before we put it on display anywhere...
That's more than a little scary.
I'm thinking you could safely do it with a Dremel tool, battery, a vise and an oscilloscope.
Next question is: What car engine can i build that will rev to 19krpms, please and thank you!!!! 
^ +1
92CelicaHalfTrac wrote: Next question is: What car engine can i build that will rev to 19krpms, please and thank you!!!!
Cosworth DFV?
We briefly considered putting one in our 240SX project car until we saw how the currency conversion worked out. 
The sensors we used in the video are now available in our online catalog:
http://www.diyautotune.com/catalog/hall-effect-crankshaft-position-sensor-p-479.html
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