Dodgy RPM

faraday
Posts: 284
Joined: Sun Feb 25, 2007 1:18 am

Dodgy RPM

Postby faraday » Fri Jul 18, 2008 12:12 am

Some logger companies have active HT RPM pick-ups that have an encapsulated doo-dad that is secured around the HT lead. I assume that they have filtering and pulse shapping circuitry inside.

There is a Pi version (5V supply) that has adjustable sensitivity.

Nudge-nudge, wink-wink; say no more.

Turby
Posts: 301
Joined: Thu Nov 17, 2005 2:28 pm

Postby Turby » Fri Jul 18, 2008 10:04 am

After issues with a shiftlight (and getting a stable RPM signal) I have resorted to one of these... Giant Magnetoresistive Pickup (GMR PN 8918) from MSD. Can be connected to coil pack wires, injectors and also used on diesel engines!

http://www.msdignition.com/2006/06-22.htm

Solved all my problems quickly and efficiently for minimal cost. Can also be transferred from car to car within minutes.


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