Has anyone tried the new E-3 spark plubs in there c-3.  I saw a tv show where they tested the e-3 plugs on a small block and gained three hp on a dyno.  I would like to here from anyone who has used the new plugs pro and con.

I put these in a 2000 Dodge Durango 4.7L. The difference was amazing. Better gas milage and smoother running. Great Product!!!!

8 of 9 people found the following review helpful: 2nd time with e3 products, December 29, 2007 By  Darrell C. Asper Jr. (Columbia PA) - See all my reviews    This review is from: E3 Spark Plugs E3.56 Automotive, Truck, Van and SUV OEM Replacement Spark Plug , Pack of 1 (Misc.) I first tried these in a 2002 ford ranger 4.0, I went from 14-15 mpg to 16-18 in the ball park of a 2% increase, and better starting and a power increase. Today I put a set in my 2007 FJ Cruiser 4.0, again and probably even more noticable power, and I can tell you when I filled up yesterday, I got 15.1 mpg, After I put the plugs in and did my running, and refueled, I hit 18.5 mpg. So yes, I feel these plugs are worth the money, I definitly recommend E3!

indy992010-06-22 11:42:35

My own experience with exotic spark plugs has not been positive.  I've concluded that if you have a car with an ignition system that requires them, then that's what you use.

I agree with Bruce. It's difficult to comprehend what this plug could do to increase HP or MPG. The plugs simply ignite the fuel mixture. I consider most of these performance enhancing products as simple gimmicks.(EBO, if you're reading this, I predict, no pun intended, a one liner is in our future.)  

Scott ranger32010-06-22 17:14:38

I too agree.  I have seen dyno tests of other ignition products, and there is never any increase over a properly functioning original product.  I would use that money to make sure the whole ignition system is in good condition.

Larry

I had Bosch platinum plugs in with my old 327 in the Vette. Car ran a respectable 14.42 at 99 MPH. Changed to a set of splitfire  plugs, all other conditions the same, equal R/T ~ 14.53. Switched plugs back to the Bosch, 14.39.

try a set of the reasonabley priced GM rapid fire plugs or if you like to fool around, take your favorite standard plugs and grind the ground back till the end is centered with the center electrode, index em so the ground end faces down towards the top of the piston, that helps.

I have tried e3's, ac rapid fire #4, ac 43's and ac 44's. When you put new plugs in they're the best thing ever because the old ones needed replacing. I didn't notice anything appreciably different. I'm currently using ac 43's. I think the e3's have a lifetime warrantee but I misplaced the sales receipt so I didn't try to get a new set.

All the new plug designs do is give a more precise  spark, and in most cases that makes it more conducive  to better combustion.  What you will find though is that the Iridium, and platinum plugs last longer.  Iridium is one of the most conductive and hardest natural metals known to man.  Platinum  Would come in a close second in the Spark plug world, anyway.  They last longer because the electrode just does not burn away as fast due to the extremely high melting point.  (2700-2900 degrees)  They can also grind the core down to a finer point at the tip, so the spark can be directed to the groung more precisely.  Like anything else you pay for the difference.  I am using Iridium plugs simply because i don't want to have to change the suckers but every 100,000 miles.  I have NGK's In all my cars, and have not noticed any drastic gains in any of them.  Although, I will say that Gas mileage increased ever so slightly.  Over the life of the plugs I might even save enough in gas to pay for them........