Iridium plugs
Team Owner
Joined: Oct 2000
Posts: 96,443
Likes: 9
From: Fort Knox, KY
Cruise-In IV Veteran
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I like them, they have performed very well for me, and are not as expensive as some are making them out to be, YES, Denso's are 15 each, I pay $4 for NGKs that are in my other 2 rides.
My point is there are NGK iridium plugs out there that are $15 a pop or more. I agree you have to shop around and shop smart, but I personally won't pay that much for spark plugs. Each to his own.
http://www.google.com/products?q=NGK...ckout-restrict
My point is there are NGK iridium plugs out there that are $15 a pop or more. I agree you have to shop around and shop smart, but I personally won't pay that much for spark plugs. Each to his own.
http://www.google.com/products?q=NGK...ckout-restrict
Last edited by onedef92; Aug 15, 2007 at 01:56 PM.
Melting Slicks
Joined: Oct 2006
Posts: 2,314
Likes: 3
From: In a van down by the river! Florida
my first set came from here
http://www.clubplug.net
6.95 for TR55IX
the last set I got for the truck I got on ebay for I think 40 for the set
http://www.clubplug.net
6.95 for TR55IX
the last set I got for the truck I got on ebay for I think 40 for the set
Le Mans Master
Joined: Sep 2006
Posts: 6,050
Likes: 147
From: Phoenix AZ
2021 C4 of the Year - Modified Finalist
plugs
there's more to the plug issue than just firing.
the spark plus have to exhibit many things.
1. conductivity
2. resistivity
3. corrosion resistance
4. wear resistance
5. radio supression
6. heat transfer
7. insulating ability
8. durability
9.conformability.
I would imagine that spark plug manufacturers are always in communication with the oem's representatives, and getting special prototype plugs made to be adaptable with new engine designs for testing.
Iridium might be the end result of a pre-released prototype run in the manufacturer's test engines.
the spark plus have to exhibit many things.
1. conductivity
2. resistivity
3. corrosion resistance
4. wear resistance
5. radio supression
6. heat transfer
7. insulating ability
8. durability
9.conformability.
I would imagine that spark plug manufacturers are always in communication with the oem's representatives, and getting special prototype plugs made to be adaptable with new engine designs for testing.
Iridium might be the end result of a pre-released prototype run in the manufacturer's test engines.
