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Location: Vic, AU
Registered: September 2004
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Re: 4cyl to 6cyl tacho conv.
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Thu, 26 May 2005 09:06

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Kind of a hi-jacking here, but I've always wondered about this topic..
I've always had the understanding that the 'trigger' is 'high' every time a spark is sent, so wouldn't the only difference between a 6 and a 4 be the amount of 'high' signals between each rotation?
Therefore, it'd be fairly easy to rig a circuit up to imitate a 4cyl, from a 6cyl feed. Count 6 signals, timed, then output 4 at similar rate.. I'm sure a tech head would be able to rig up an IC that could do that. I mean it sounds dodgy, but when you consider how many RPM's your regular engine does, it should be pretty accurate..... Shouldn't it?
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