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post #1 of (permalink) Old 03-29-2004, 12:43 PM Thread Starter
 
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seeking HEI information.

I am trying to use an HEI module ( the $20 part) in a non-GM ignition.

I dont have a chevy to check the distributor on, and Im trying to find out how the distributor signals the module to fire the coil.

is a voltage sent from the hei module to the trigger, and then the trigger opens when it sweeps past the pickup?

or does the trigger mechanism, generate its own small voltage ( magnet and coil) that is sent to the module when the wheel passes the pickup?

would it be considered hall effect, or magentic? or reluctor type or what?

thanks in advance for any information offered!

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post #2 of (permalink) Old 03-29-2004, 04:13 PM
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Re: seeking HEI information.

It uses those star-shaped magnets to get enough engergy to send through the pickup coil and then out.

Are you using the barebones 4 pin ICM?
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post #3 of (permalink) Old 03-29-2004, 05:43 PM Thread Starter
 
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Re: seeking HEI information.

I will use what ever is the cheapest and does what I need, I hope its the simple 4 connector module, Ive read how it hooks up.

I tyhink the distributer I have is a hall effect, I dont know if it will trigger the module or not.

Ill probably wire one up and see.

thanks for your info!
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post #4 of (permalink) Old 03-30-2004, 04:45 PM
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Re: seeking HEI information.

If it's a Hall Effect it won't trigger the HEI.
The HEI needs a voltage pulse at least 3 volts, preferably 8 or 9 to trigger - and about 100 RPM to trigger. The pulse is a spike.
The Hall Effect is more like an on off switch.

What are you trying to do?
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