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pjrainmaker · 03-28-2005, 11:17 AM

Iridium plugs dont do anything to add power. The thing with Iridium plugs is that that can hold up using a smaller electrode with less electrical resistance, this requires less power from your coil to ignite at its peak efficiency. The only difference is that they require less voltage to spark, appx 0.6V to be exact. Bosch is in development with an IrOdium plug which requires even less, about .4V, but they are having problems with durability. The result of using the iridium plugs with your stock ignition would be the same as using normal spark plugs with and MSD box. Nice, but not justified with the cost.
For performance, the best plugs would be along the lines of the NGK or Champion (yes I said Champion) split V's, BUT the don't last nearly as long. If you want durabilitym then a double platinum plug will keep you from taking your upper intake off 50k miles down the road. If money is no object and you want the performance, durability and low power requirements, then wait about a month or two for Autolite to come out with their new iridiums. They are going to be the end all cadillac of plugs. but still not worth the cash is your on a normal persons budget and don't mind spending some quality time under the hood of your pride and joy.

PS Gap the, between 32 and 34. its not hard, just get a 99cent gapper (or feeler gauges) and slide it between the electrodes, read the number where it stops and that's your gap. If the number is greater than 34 then tap the protruding electrode lightly until you get your desired gap. If the number is LESS than 32, then use the flanged hole in the gapper to safely pull the electrode away from the terminal without damaging any other part of the plug.

03-28-2005, 11:17 AM	#2 (permalink)
pjrainmaker Forum Member Join Date: Mar 2005 Drives: 91 VR 4 Trader Rating: (0)	Re: Plugs quick questions Iridium plugs dont do anything to add power. The thing with Iridium plugs is that that can hold up using a smaller electrode with less electrical resistance, this requires less power from your coil to ignite at its peak efficiency. The only difference is that they require less voltage to spark, appx 0.6V to be exact. Bosch is in development with an IrOdium plug which requires even less, about .4V, but they are having problems with durability. The result of using the iridium plugs with your stock ignition would be the same as using normal spark plugs with and MSD box. Nice, but not justified with the cost. For performance, the best plugs would be along the lines of the NGK or Champion (yes I said Champion) split V's, BUT the don't last nearly as long. If you want durabilitym then a double platinum plug will keep you from taking your upper intake off 50k miles down the road. If money is no object and you want the performance, durability and low power requirements, then wait about a month or two for Autolite to come out with their new iridiums. They are going to be the end all cadillac of plugs. but still not worth the cash is your on a normal persons budget and don't mind spending some quality time under the hood of your pride and joy. PS Gap the, between 32 and 34. its not hard, just get a 99cent gapper (or feeler gauges) and slide it between the electrodes, read the number where it stops and that's your gap. If the number is greater than 34 then tap the protruding electrode lightly until you get your desired gap. If the number is LESS than 32, then use the flanged hole in the gapper to safely pull the electrode away from the terminal without damaging any other part of the plug.