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> FS: trigger wheel system for type 4, Megasquirt, $120 shipped
jarred
post Jan 9 2015, 04:43 PM
Post #1


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Group: Members
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Joined: 13-March 09
From: seattle
Member No.: 10,159
Region Association: Pacific Northwest



Designed these for my 914 and bus megasquirt projects but built a batch of 10 while I was at it in case anyone else found them useful. Specifics...

This is a 24-2 trigger wheel and sensor that mounts inside a Bosch distributor (009, 035, 050, etc) and uses a Hall effect pickup to generate a trigger signal for coil on plug or wasted spark ignition systems. Installs in 5 minutes and is much more discrete than all of those on crank 36-1 VR based systems with the brackets, etc. Tested on VW/Porsche type 4, VW type 1, and Porsche 356 and 912 engines, but will fit a broad range of Bosch 4 cylinder distributors. Can parallel two wasted spark coil packs for twin plug applications. I recommend the VW 2.0 coil pack VAG part 032905106B/032905106E which fires with logic level signals rather than requiring ignitors.

Uses the Allegro 617 hall effect sensor. This sensor is internally pulled up to the power supply with a 10k resistor, so if you need a 5 volt square wave output (logic level) then power it with five volts. Need 12V? Power it with 12 Volts.

3 wires, power ground and signal all in a shielded cable ~5 feet in length.

Wheel is a 24-2 which looks like a 12-1 on the crank. Will work with most Megasquirts but please do your research.

I currently have 10 in stock and ready to ship.
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