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Old 10-29-2012, 12:34 PM
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Double Platinum Spark Plugs

Anyone know of any problems running double platinum plugs in a hot rod? I was told that they could burn a hole in a piston? Any feedback?
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Old 10-29-2012, 12:46 PM
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you should contact msd or w/e you are using. even using the wrong msd system can cause problems.
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Old 10-29-2012, 03:24 PM
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A spark plug does not generate heat. Piston damage can occur if the spark plug with the wrong "heat range" is used. Therein lines the confusion.

The heat range is the ability of the spark plug to move heat away from its tip and into the cooling system. A spark plug operates from 850 deg. (cold) to 1550 deg. F. (hot). If the temperature reaches 1700 degrees, the spark plug conductors glow red and become a source of preignition within the combustion chamber. Preignition can damage pistons.

The metal the electrodes are made of does not determine the heat range of the spark plug. Spark plugs made of the same metal alloys but will have different heat ranges according to the amount of insulation around the center electrode. The condition of the engine, exhaust system, the fuel/air mixture and ignition timing determines what spark plug heat range is needed.

I am sold on double platinum spark plugs . They do not cause the engine to perform any better than a copper plug in fact, they are equal up to abot 15,000 miles. However, platinum spark plugs will maintain the same engine performance from 15,000 miles to 50,000 miles.

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Old 10-29-2012, 05:28 PM
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Thank you

I appreciate your input. Not sure why two different people have made the same suggestion. I have aluminum heads and they said that could be the cause and the last thing I want to do it damage my motor from a spark plug
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Old 10-29-2012, 07:32 PM
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Double Platinum Spark Plugs

Most of the time the Head Manufacturer recommends the spark plug to use. I know my Edelbrock Performer Rpms recommend Champion RC12YC.
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Old 10-29-2012, 07:53 PM
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I have Trick Flow aluminum heads and you would think they would answer that question, but for some reason I've had no luck with them. Too many variables in their opinion i guess. I've already installed the double platinum and the car has ran better... at least it's lost the Edelbrock carb hesitation... I just dont want to risk major damage. Thank you for your input, I appreciate it.
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