Best Spark Plugs?
#1
Best Spark Plugs?
Changing the spark plugs in my '95 Accord EX 2.2 VTEC and I was looking at either the NGK Laser Platinum plugs or the E3 Premium DiamondFIRE plugs. What would you guys recommend?
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#10
Honda-Tech Member
Re: Best Spark Plugs?
I've run iridiums as well, and though i can't speak one way or the other to any measurable performance increase, they did last seamingly forever! maybe 90k before I decided they needed replacing.
#12
Re: Best Spark Plugs?
Ok I figured NGK would be the way to go. I get a deal at Advance where I can get the NGK Laser Platinums and blue NGK wires all for $80, so I figured it would actually save me money due to the conditions on my coupon. $40 off and free shipping on all orders over $120.
#13
Re: Best Spark Plugs?
Check out this test comparing OEM Honda spark plug wires vs. NGK wires:
http://www.vtec.net/articles/view-ar...rticle_id=8680
Results showed 8-yr old OEM wires still outperformed new NGK wires. I believe Sumitomo made the wires on older Accords. Although it'll be more expensive, I'd still spring for OEM wires. Nothing beats genuine Honda electrical/ignition components.
http://www.vtec.net/articles/view-ar...rticle_id=8680
Results showed 8-yr old OEM wires still outperformed new NGK wires. I believe Sumitomo made the wires on older Accords. Although it'll be more expensive, I'd still spring for OEM wires. Nothing beats genuine Honda electrical/ignition components.
#14
Re: Best Spark Plugs?
Check out this test comparing OEM Honda spark plug wires vs. NGK wires:
http://www.vtec.net/articles/view-ar...rticle_id=8680
Results showed 8-yr old OEM wires still outperformed new NGK wires. I believe Sumitomo made the wires on older Accords. Although it'll be more expensive, I'd still spring for OEM wires. Nothing beats genuine Honda electrical/ignition components.
http://www.vtec.net/articles/view-ar...rticle_id=8680
Results showed 8-yr old OEM wires still outperformed new NGK wires. I believe Sumitomo made the wires on older Accords. Although it'll be more expensive, I'd still spring for OEM wires. Nothing beats genuine Honda electrical/ignition components.
#16
MM Gruppe B
Re: Best Spark Plugs?
Unlike conventional coppers that gradually physically wear out the center electrode, iridium will maintain the sharp edge/tip of the center electrode. The sharp edge is where the spark will jump to/from. If there are more sharp edges the spark will take less energy to jump the gap, allowing for more energy to be used 'in' the spark itself. This is also why the J electrode has a groove in it, it adds two more sharp edges for the spark to jump to. The smaller center electrode takes less energy to saturate for a spark to occur. When a typical copper wears, not only is that sharp jump off point lost, but there is still the mass of copper that needs to be saturated prior to the spark jumping. Loss of energy saturating the electrodes rather than jumping the gap with a hotter spark will cause loss of power through wear.
Will iridium spark plugs create more power, probably not. Will they maintain a constant, consistent reliable spark, yes they will.
Your stock 150HP engine will more likely maintain 150HP over the next 100K miles, where as the coppers will wear and you will lose efficiency and a few horsepower, MPGs, and increased emissions from a weaker spark.
As for Sumitomo vs NGK plug wires.
IIRC From the dealer the Sumitomo set is ~$70 but comes with new wire retainers as well, handy if you snap an old one.
NGK from RockAuto is ~$50 shipped.
NGK has the advantage over other generic aftermaket wires in that they are of the correct length, fit, and do not pop out of the spark plug well like other generics. However, like the other aftermarket sets, they do not have to meet all of the OEM specifications that the Sumitomo ones need to meet.
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Johnnyrod310
Honda Accord (1990 - 2002)
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07-08-2016 07:24 AM