LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Crank Trigger Wires and BS3 on a Lt1

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Old 02-24-2012, 02:43 PM
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Default Crank Trigger Wires and BS3 on a Lt1

I am trying to finalize the wiring on my LT1 Stock Eliminator Project with a BS3. I installed a crank trigger and currently have the wires running to my MSD iginition box. I know this isnt right so my question is.....what wires on the BS3 main harness do i connect to the green and purple crank trigger wires?

Thanks for your help
Old 02-24-2012, 03:53 PM
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Originally Posted by Formula Stocker
I am trying to finalize the wiring on my LT1 Stock Eliminator Project with a BS3. I installed a crank trigger and currently have the wires running to my MSD iginition box. I know this isnt right so my question is.....what wires on the BS3 main harness do i connect to the green and purple crank trigger wires?

Thanks for your help
Did your BS3 come with a wiring diagram or PCM pin-out diagram?
Old 02-24-2012, 04:04 PM
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should use crank +/- inputs for the crank trigger wires, then your EST/Points output to trigger the ignition box. This is for DFI but should be similar for BS3
Old 02-24-2012, 04:54 PM
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Originally Posted by Tony Shepherd
Did your BS3 come with a wiring diagram or PCM pin-out diagram?
it did come with a diagram for the opti spark but it incorporates a stock GM ignition module. Since this is no longer being used, I have to deviate from the schematic a little.


Thanks for the help wicked. Ill take a look at that tonight
Old 02-24-2012, 08:31 PM
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Got it figured out. Thx
Old 02-25-2012, 07:20 AM
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Any pics of the car? What class will you be in? There are a few stock eliminator guys in here.
Old 02-25-2012, 07:34 PM
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Prob gonna run c/sa. Think I'm eligible to run b,c,and d. There is a bunch of pictures If u search "formula stock eliminator" build on here



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