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Transistor ignition question

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Old Mar 31, 2007 | 02:17 AM
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Default Transistor ignition question

I have a 67 427 with TI ignition. I was told by someone at Lectric Limited that the TI used a ballast resistor. I am sure that he is incorrect. The purpose of the TI ignition was to give full voltage to the coil so it would be able to give a hotter spark. Point distributors needed the lesser voltage so that the pionts would not burn in normal running. The only time they saw full voltage was on the start. Am I correct? If I am not, I want to understand where I went south, Roger Orton
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Old Mar 31, 2007 | 07:15 AM
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Originally Posted by smiley-ro
I have a 67 427 with TI ignition. I was told by someone at Lectric Limited that the TI used a ballast resistor. I am sure that he is incorrect. The purpose of the TI ignition was to give full voltage to the coil so it would be able to give a hotter spark. Point distributors needed the lesser voltage so that the pionts would not burn in normal running. The only time they saw full voltage was on the start. Am I correct? If I am not, I want to understand where I went south, Roger Orton
No ballast resistor with TI. If you need a module or wiring, use:

http:www.wiringharness.com

If you need advice that is accurate, contact Dave Fiedler:

http://www.tispecialty.com/
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Old Mar 31, 2007 | 11:59 AM
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Originally Posted by smiley-ro
I have a 67 427 with TI ignition. I was told by someone at Lectric Limited that the TI used a ballast resistor. I am sure that he is incorrect. The purpose of the TI ignition was to give full voltage to the coil so it would be able to give a hotter spark. Point distributors needed the lesser voltage so that the pionts would not burn in normal running. The only time they saw full voltage was on the start. Am I correct? If I am not, I want to understand where I went south, Roger Orton
The white wire in the harness is the resistor. It is not a ballast but still there to drop voltage. I think to 9 or 10 volts. The fog of time!!!!!
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Old Mar 31, 2007 | 12:02 PM
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Originally Posted by 66rag427
The white wire in the harness is the resistor. It is not a ballast but still there to drop voltage. I think to 9 or 10 volts. The fog of time!!!!!
Thanks for clarifying; you are correct. There is no ballast resistor on the firewall as there is for CB cars.
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Old Mar 31, 2007 | 11:02 PM
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Have recently spoke with Greg @ LL, he seems to know his stuff.
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Old Apr 1, 2007 | 02:10 AM
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Default TI resistor

Thanks for the help. I thought I understood the theory. Roger Orton
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