E3 SPARK PLUGS-DOES DIAMOND FIRE TECHNOLOGY REALLY ADD POWER? E3 VS LASER PLATINUM VS CHEAP COPPER

DO CHEAP SPARK PLUGS WORK AS WELL AS EXPENSIVE PLUGS? COPPER PLUGS VS PLATINUM PLUGS-WHICH ONE WORKS BEST? CAN YOU ADD POWER WITH PERFORMANCE SPARK PLUGS? DO PLATINUM PLUGS REALLY WORK? WHAT IS THE BEST SPARK PLUG FOR MY LS? HOW TO SWAP SPARK PLUGS! CHECK OUT THIS VIDEO WHERE I COMPARED THREE DIFFERENT TYPES OF NEW SPARK PLUGS TO A TIRED SET OF MISMATCHED PLUGS ON MY JUNKYARD TEST MOTOR. THE 5.3L L3 WAS RUN FIRST WITH MY SUPER RICHIE, JUNKYARD PLUGS, THEN WITH NEW E3 PLUGS (WITH DIAMOND FIRE TECHNOLOGY), A SET OF NGK LASER PLATIMUM PLUGS AND A SET OF CHEAP AUTOLITE COPPER PLUGS. HOW MUCH POWER DID THE EXPENSIVE PLUGS MAKE ON THE BTR-CAMMED 5.3L?

[THEFERMANATOR]

Now throw in a set of Bosch super plugs. They are the 1 plug I have seen kill the performance of more than 1 engine. When I worked for Dodge I lost track of how many times a car would come in running rough and low on power after a tune-up, pull the plugs to find the super cheap Bosch supers in there, swap in a set of used plugs, and the engine runs like new.

[Mechanickirk]

My grandfather who owned and ran a service station post WWII always said the air and fuel doesn't care what's making the spark. As long as it's the right heat range, it doesn't care. Seems like he was right.

[AndyR]

Ive run copper cores in all my gen 3 applications since the early 2000s. Local tuner found " a strange small but repeated midrange power increase" with them. I guess this just confirms his statement.

[JBAutomotive]

Man Richard preaching what I've been saying for years. I managed a parts store for about 10 years and always preached this info.
All plugs if firing will make the same power. The difference in high dollar plugs is that the expensive alloy plugs will last longer without burning out and fouling as quickly as something like copper plugs.
The NGK Lazer series plugs are designed with oem companies to be the best plug and are usually the OEM installed plugs.
The only way to change how much power is Made is by changing cylinder pressure, either done by combustion chamber design or by forced or chemical induction.
Copper is an ideal conductor. It's the reason your home uses copper wire. But in an engine it will burn away eventually.

[thomasward]

I've always said if your engine is running right with the right mixture and timing it only takes one spark to get it going!

[jacksmiththeboss]

I run cheap ngk plugs in everything. Vehicles and ATVs runs great like they should.

[DemsRdisguisedredcoats]

Tried those E3 plugs in my new (at the time) 08 F150. Kept getting random misfires and sluggish performance, went back to the factory recommended platinum tip plug and the truck ran fine.

[jefft]

I'm glad to finally see E3s on the dyno. I am a tiny bit surprised. I've always suspected they would actually KILL a little power, due to the shrouding by the numerous and massive ground electrodes.

[unclecowboy]

I’ve ran a set of e3 spark plug’s in my 63 Chevy 283 m/t two wheel drive pick up truck for years I think I got them when they first became available to purchase I replaced them because the factory plugs were fouling from leaking valve seals and would have to be pulled weekly and cleaned after putting the e3 plugs in I’ve never pulled them I still have the points distributer and oil bath air cleaner so for me they are great

[armandomendoza]

Autolite plugs are used in some sports cars. Plus they have a 4, 000 oms resistance. Which is less than other plugs. Giving you more stronger spark at the tip.

[joshup]

Man I wanted this test for years to be done

[Rattdoggq]

once again Richard comes in and kills the placebo effect ...awesome job!
but if you've ever change the spark plugs on a 6-cylinder Subaru, you'll value iridium long lasting spark plugs.

[GTStuning-]

I have a naturally aspirated LS7 that I have ran NGK TR6 spark plugs in platinum and copper variety at the same gap.
I noticed the copper plug seemed to change the exhaust sound when revving up from idle, like it had more power as it swept through the revs.
I didn't think much of it and installed a fresh set of platinum TR6 plugs a few months later. The sound and ease of revving from idle was reduced.

This year I removed the platinum plugs and put in a set of copper TR6 plugs, hey guess what...the sound is back when revving from idle, sounds meaner.

Your test definitely helped shed some light on subtle gains. On the chassis dyno though I didn't notice any gains that stood out at peak hp, maybe 0.5 to 1 hp at peak hp between the 2 materials, similar to what you showed.

[buickpower]

I switched out the standard NGK UR-5's with compatible E-3's at the track in my mid-12 second(at the time) Buick 455 and saw basically nothing after the switch. MSD 6AL ignition. Luckily I got the E3's off E-Bay for a reasonable price compared to the usual local prices. Kept them in just because and they still run fine a few years later.

[Modified]

Thank you for finally putting advertising to rest!! The gap was way more revealing than the advertising!! Thanks Rich please keep on testing!!

[aaronliddell]

I want friggin sharks with friggin spark plugs attached to their friggin heads!

[falfighter]

wow the cheap plugs did great. i made a comment about arc blowout a while ago. i said that the arc gets blown out. iv seen arc blow out when the arc travels a long distance. However, i did try to blow out the arc from my arc lighter using compressed air. The arc never went out. the arc would bend and deform but would never go out. so i learned something. thank you.

[bensollman]

I always use the autolite copper plugs.

[The_Fat_Turtle]

The previous owner of my 6.0L truck installed the e3 diamonds not long before selling and within 6 months they were misfiring. I also tried Bosch +4 plugs when I was a dumb kid on a 4.3L work truck and they just misfired out of the box. I have since just assumed all gimmick sounding spark plugs are going to be garbage. If NGK sells a standard plug for the application, I am going to use them.

[Dr_Xyzt]

I had iridium plugs get the tips rounded off, and never figured out why. That was on a bone stock car. I put new iridiums back in and checked it 20K miles later. They were fine. The last two cylinders are hard to reach, and I'm gonna leave it that way.
-- Otherwise, I just run copper. I understand that copper plugs don't last as long, but haven't managed to wear out a set.
-- Yeah, I've had no-start situations and check engine lights that were fixed by putting new plugs in, but for all I know, the plugs could have had some sort of defect.