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chevymad Master B
Joined: 11 Jan 2004 Posts: 5474
1987 Pontiac Formula
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Posted: Wed Feb 18, 2015 10:03 pm Post subject: Found an interesting article on ignition |
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Just found this ignition article. I've always heard that if you have an HEI there is no need to install a CD ignition system. This goes into the reasons why you maybe should. It also discusses coil selection when you have a CD ignition. The type of coil you select will even change the ignition timing and can be used as a tuning aid. But the effect isn't very noticeable with a stock inductive ignition.
http://www.hotrod.com/how-to/engine/ignition-coil-tech/ |
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QwkTrip 11sec Club
Joined: 17 Feb 2004 Posts: 3942 Location: Peoria, IL
1989 Pontiac Firebird
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Posted: Wed Feb 18, 2015 10:59 pm Post subject: |
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I had an MSD box with my HEI distributor on my ZZ4 El Camino. I just thought that was normal? |
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aaron_sK Member
Joined: 23 Jan 2006 Posts: 8834 Location: Back in beautiful Tacompton
1987 Chevrolet Camaro IROC-Z
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Posted: Thu Feb 19, 2015 12:49 pm Post subject: |
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That one is news to me as well. I think I see MSD boxes on HEI cars more than on anything else. I ran one on a DuraSpark with good success. |
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