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Thread: Diode for Coil
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03-18-2010 #1
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Diode for Coil
I'm putting a one-way diode on my coil. I need to know if a 6 amp diode is large enough. If not, I can put two in parallel.
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03-18-2010 #2
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Why?
Brad Shepard
69 Malibu
Marshall, MO
03-18-2010 #3
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I tested an HEI and it drew around 5 amps at low speed but got near 10 amps at higher rpm's. What's the diode for???
DavidDavid Pozzi http://www.pozziracing.com67 Camaro RS that will be faster than anything Mary owns.
03-19-2010 #4
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I have a lot of noise in the electrical system that is caused by the ignition system. It is interfering with the low speed operation of my Autometer speedo. I plan on putting EZ-EFI in the car in a week or two so I need to do something with this circuit. Unhook the tach and the speedo works great.
Originally Posted by David Pozzi
I hoping the diodes will help. Cooper/Bussmann makes mini-fuse format diodes in 3 and 6 amp ratings. I'll put two 6 amps in parallel. That should be sufficient. Plus, if one goes bad, I'll have a backup.
03-19-2010 #5
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I don't think the diodes are going to help with that. Try isolating the grounds for the tach and the speedo.
Brad Shepard
69 Malibu
Marshall, MO
03-19-2010 #6
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That's a good idea. They do share a comon ground. Originally Posted by shep
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