Non-resistor plugs?
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Joined: Mar 2001
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From: Lawrenceville,Georgia,U.S.
Non-resistor plugs?
Hi all,
I am installing a new ignition system on my 87 TII. I intend to be punching close to 1/2 amp peak current every time a leading spark plug fires. All the stock plugs have 5.5Kohm resistance built in. Not good. Phooey on the government, I need non-resistor plugs! I have NGK BUE plugs, but I don't know what heat range they are. I also got some old NGK B7EM plugs. Right heat range, I think, but not surface gap plugs. They have 2 side electrodes instead. Will they work in a 13B? (I think these were originally 12A plugs). Rotary Performance advertises an NGK racing plug, R6725-11.5. That is COLD, way too cold for street driving. However, I found that R6725-9 is a valid part number. What kind of plug is that, conventional ground electrode or surface gap? Has anyone tried this plug or any of the others in a 13B, and if so, how did they work? Thanks, have a good day!
Irv, Keith's dad
I am installing a new ignition system on my 87 TII. I intend to be punching close to 1/2 amp peak current every time a leading spark plug fires. All the stock plugs have 5.5Kohm resistance built in. Not good. Phooey on the government, I need non-resistor plugs! I have NGK BUE plugs, but I don't know what heat range they are. I also got some old NGK B7EM plugs. Right heat range, I think, but not surface gap plugs. They have 2 side electrodes instead. Will they work in a 13B? (I think these were originally 12A plugs). Rotary Performance advertises an NGK racing plug, R6725-11.5. That is COLD, way too cold for street driving. However, I found that R6725-9 is a valid part number. What kind of plug is that, conventional ground electrode or surface gap? Has anyone tried this plug or any of the others in a 13B, and if so, how did they work? Thanks, have a good day!
Irv, Keith's dad
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