Champion EON Spark Plugs?
Discussion
Have any of you guys tried these? Thought I might give 'em a try.
Recommended gap is 0.95mm as opposed to 0.8mm for the B7ECS: quite a sizeable increase. The electrode seems to protrude considerably further into the combustion chamber than the B7ECS too; thinkin' this may lead to an improved flame front and combustion. Any of you ignition guru's got a comment to make....
I fitted champion plugs to a fast road engine in my mini, because the electrode protruded too far into the chamber it over heated, this ended in the electrode overheating and dropped off into the cylinder which in turn jammed and bent the valve, this which came down bent and hit the piston wrecking my whole engine. Next time the engine builder tells me to get NGK I will.
Ooh dear, a lot of negatives there! These things weren't cheap; though of course I understand this doesn't mean that they're gonna be good. 'Champion' have been in the business for probably longer than most and as 'Griff/Chim 500' was on the application list (back of pack) I thought I'd give 'em a try. I'm sure they can't be deserving of some of the above adjectives.
This is certainly no field of expertise for me but I figured that a spark that was placed a little further into the combustion chamber and was less shrouded would be a good thing. Aren't heat dissipation and fouling two of the limiting factors for plug design and materials? Thought this is where the additional expense may have gone.
Hehe, Pete, I see what you did there!
Your usual analytical perspective and knowledge need adding though. Are these plugs really a bum choice. Any subscribers to 'Sparkplug Weekly' got comment to make?
This is certainly no field of expertise for me but I figured that a spark that was placed a little further into the combustion chamber and was less shrouded would be a good thing. Aren't heat dissipation and fouling two of the limiting factors for plug design and materials? Thought this is where the additional expense may have gone.
Hehe, Pete, I see what you did there!
Your usual analytical perspective and knowledge need adding though. Are these plugs really a bum choice. Any subscribers to 'Sparkplug Weekly' got comment to make? This may help i have only ever fitted NGK or vary rarely Nippon Denso(also a very good plug)in in 19 years of the car trade i have only fitted 2 duff plugs ever,thats some build quality,i was convinced how good these plugs are when i worked at an Honda dealership years back(original equipment)if you look carefully at the electrode quality compared to a Bosch,Champion,Beru you will see what i mean,they also have a much wider temp operating range.
As a point of balance for Champion, i refuse to use NGK in Cerberas .. i can never get as much advance in with the NGK equivalent, and consequently i never see the hp that i do with the champions .. you'd think the chapion was running cooler from that but they're much better at self-cleaning in cerbs than the NGK versions .. go figure. the champion is just a much better plug in cerbies.
however in the RV8 the retracted centre electrode NGK is designed to run cooler and give less chance of pre-igniting the fuel before the spark fires .. so I'd stick with the NGK in that application as i've never had problems with NGK in RV8 engines.
however in the RV8 the retracted centre electrode NGK is designed to run cooler and give less chance of pre-igniting the fuel before the spark fires .. so I'd stick with the NGK in that application as i've never had problems with NGK in RV8 engines.
2Munkys said:
Are these plugs really a bum choice.
The recommended NGK plugs have a short nose. You can buy NGK plugs the same shape as those Eons if you want - but they aren't the ones recommended for that engine. The NGK B7ECS works well and consistently. The Eons *might* work but they're a gamble, and the fact that they're a different shape is not a promising start imo.
O.K, thanks for the replies. I aint so dumb as to dismiss the thoughts/experience/knowledge of those whose opinions on this site are regarded. Getting it wrong could be expensive. However, there seems little substance other than 'a belief' for dismissing the subject items outright. Advances are constantly being made in the field of automotive engineering, even for an RV8; we're all using Shell V-Power or a BP equivalent now aren't we?
I've e.mailed the techies at 'Champion' and another specialist in the hope of getting a little more info'. If there's a response, I'll sumarise it here.
I've e.mailed the techies at 'Champion' and another specialist in the hope of getting a little more info'. If there's a response, I'll sumarise it here.
I put these EON things in my first Impreza. They were useless - it couldn't sustain a mere 1 bar of boost without misfiring even with the electrode gaps closed up far more than was good - down to 0.5mm. Replaced them with the NGK plogs (same shape, same heat grade etc.) and all was fine again, with the standard 0.8mm gap. I avoid champion now, apart from in my Seagul outboard 
I've had two out of six Champion plugs fail within 1,000 miles of fitting them on an old Ford V6 in a previous car of mine (Scimitar), swapped out for NGK and never had a similar problem with the car again. Similarly crappy performance on a 1.3 Vauxhall I had before. I've used NGK ever since in every petrol car I've owned (about a dozen since then) and never had a single problem with the NGK plugs I've fitted, either in running or reliability. Personally, I wouldn't fit the Champion plugs.
Gassing Station | Griffith | Top of Page | What's New | My Stuff