jimstim 2.0 bench test with optispark

Building and using the Stimulator to test your Megasquirt

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jimstim 2.0 bench test with optispark

Postby dwafford » Thu Jul 31, 2014 7:04 pm

I'm building MS3/MS3X on a GM LT1 engine, using the Optispark for crank and cam position, fitted with LS1 COP. I can't seem to find 1) correct dip switch settings on the JimStim; 2) how to set jumpers - do I need a jumper wire from the 2nd trigger to a pin on the JimStimX, and if so, should it be to CAM or PT4, or is this connection accomplished with just the correct jumpers on the JimStim; 3) Spark Output setting: I found instructions that say to set it "Going High Inverted", but my ignition options table only shows "Going High" or "Going Low"; 4) should polarity on high res tach be inverted; 5) MAT pot is having no effect on TS gauge; could this be related to above? Many thanks for any help.
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Re: jimstim 2.0 bench test with optispark

Postby Mad_RedHatter » Mon Jan 26, 2015 7:13 pm

Does anyone have the answers to these questions? I have the same set of questions except the MAT pot.

Much appreciated
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Re: jimstim 2.0 bench test with optispark

Postby jsmcortina » Tue Jan 27, 2015 5:28 am

JimStim DIPswitch settings are listed here
The OptiSpark is referred to as : "Mitsubishi 360 tooth CAS (8 cyl)"

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