Originally Posted By: kr_bitog
Originally Posted By: Clevy
I've never been one to hold the belief that any plug makes better power than any other plug and since I'm the kind of guy who likes to maintain my vehicles I usually buy the cheapest copper plug out there and swap them yearly however I've gotta to admit I've found a plug that definitely felt like it made my motor more peppy.
I just bought an 88 mustang with a 5.0. Previous owner had those ngk pin tipped iridium plugs. They looked basically new when I removed them and when I went to Canadian tire I had every intention of using those same plugs however the only plugs that fit my engine that Canadian tire had 8 of we're the E3 diamond fire ones.
Again I expected no change in performance and the plugs I removed were clean and new looking.
The car pulled better off idle right up to 5500rpm and the difference was felt immediately. Never did I even think for a moment a plug can increase power over any other plug when new. But these E3 plugs definitely made my mustang run better.
And they were cheaper than the ones I pulled out so they actually saved me a few bucks in the process.
I just bought 8 more for my 4V mustang since I am just in awe with the difference in this old5.0.
Again I never believed in any of the hype and always thought a plug was a plug and those big dollar plugs just lasted longer,I was wrong.
Just my experience
Pin type iridium plug is very sensitive with gapping to match with your ignition system capability. You need to match what is the original plug electrode size and the gap, to maximize the benefit.
For example, if your original plug is standard copper plug with 0.8 mm gap, you may gap around 1mm with the small electrode iridium plug. If you put the same 0.8mm gap, the engine will still run and idle perfectly, but the torque curve will suffer.
Interesting.
K. I still have the old plugs. I'll check them to see what the gap actually is. Honestly had I not already bought those E3 plugs I wouldn't have changed them these removed ones looked so new.
I kept them just in case
Thanks for the heads up.
Originally Posted By: Clevy
I've never been one to hold the belief that any plug makes better power than any other plug and since I'm the kind of guy who likes to maintain my vehicles I usually buy the cheapest copper plug out there and swap them yearly however I've gotta to admit I've found a plug that definitely felt like it made my motor more peppy.
I just bought an 88 mustang with a 5.0. Previous owner had those ngk pin tipped iridium plugs. They looked basically new when I removed them and when I went to Canadian tire I had every intention of using those same plugs however the only plugs that fit my engine that Canadian tire had 8 of we're the E3 diamond fire ones.
Again I expected no change in performance and the plugs I removed were clean and new looking.
The car pulled better off idle right up to 5500rpm and the difference was felt immediately. Never did I even think for a moment a plug can increase power over any other plug when new. But these E3 plugs definitely made my mustang run better.
And they were cheaper than the ones I pulled out so they actually saved me a few bucks in the process.
I just bought 8 more for my 4V mustang since I am just in awe with the difference in this old5.0.
Again I never believed in any of the hype and always thought a plug was a plug and those big dollar plugs just lasted longer,I was wrong.
Just my experience
Pin type iridium plug is very sensitive with gapping to match with your ignition system capability. You need to match what is the original plug electrode size and the gap, to maximize the benefit.
For example, if your original plug is standard copper plug with 0.8 mm gap, you may gap around 1mm with the small electrode iridium plug. If you put the same 0.8mm gap, the engine will still run and idle perfectly, but the torque curve will suffer.
Interesting.
K. I still have the old plugs. I'll check them to see what the gap actually is. Honestly had I not already bought those E3 plugs I wouldn't have changed them these removed ones looked so new.
I kept them just in case
Thanks for the heads up.
