Thread: What spark plugs do you use?

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Hello, I am new to this forum. I have been reading new and old post and just got to wondering what others are using for spark plugs. I know there will be different choices if you are using nitrous or not but with BBC has anyone done dyno test. Anyway which brand do you like and why?

.................Anything but Champions!

It's funny that Pope would say "anything but Champions"

In 1969 and 70, I used J8 Champions in both of my Z28 Camaros
with excellent results. With the relatively high rpm engines, they
worked well but you could detect a slight difference when they got
a few miles on them.

Somewhere in the 80's, Champions seemed to turn to junk while
other brands seemed to be of higher quality....maybe it was the
technology shifting but there is a difference. In my opinion, buying
a brand because of low price is a mistake...like buying anything just
because of price. Experiment and ask to find a brand that suits your
requirements and then try to find the best deal on that particular
brand.....

I think Pope was a counter guy at one time and got tired of hearing me tell him that . Robot I don't know where Champion started declining, but they have not been the plug for my apps for a long time. As I've grown with the trade and hobby, I find every manufacturer has a plug for the condition in which you have chosen to use. I do prefer NGK for most if not all apps because of extensive Drag racing with exotic fuels and forced pressures. They have never let me down. I have been "Spanked" with my hard headed attitude against Champions before, but they got me home from Lincoln, Nebraska to Fort Collins, Co. No other plug would burn in the conditions the Honda put me in when the number 3 auxillary intake valve blew up and I had to patch it to get home from the bracket nationals in St Louis. So I don't bad mouth product manufacturers but rather
cautious and go with what my app takes to make it consistant and burn properly.

I use either Autolites or NGK's, Autolite on the street, NGK for racing. No complaints on either. Just got done indexing 4 sets for the 460's in the drag cars.... I've ran the NGK's for about 5 years in racers (circle burners and drag cars) with no complaints.....

I like NGK too. In fact, at the marina that is all we would install when we did a service job. I've also run Autolite's with good results.

Don

Don, Dave, I would like someone on this forum to bring back an old "trick" as it were. So all those here do not feel I'm hogging the spotlight....Would you or anybody else wanna explain "indexing" the plugs? If not, I can do it. Just don't wanna pee on another preson's campfire.

It's pretty well accepted in the dirt bike world that Champions hole pistons. So, everybody runs NGK which are great. Are they the best? Nobody ever tries AC Delco or Bosch in the bikes. They are so sensitive to the heat range, nobody wants to risk cross-referencing. Some do run Denso plugs, but I think NGK and Denso are the same plugs. I personally am running Champions in my truck for no reason other than the price was right. Autolites kind of scare me, but I have no foundation for this.

Indexing isn't just for racers, it's also for direct injection engines :P

Indexing isn't just for racers, it's also for direct injection engines :P


Now that you mention that, I remember our Techs at the marina saying some outboard engines had to have the plugs indexed when we serviced them.

Don

Thanks guys.....Denny, youdaman again...nicely put....I will fudge a bit and state that hot street motors can benefit from indexing according to the set up.

Originally Posted by Dave Severson

I use either Autolites or NGK's, Autolite on the street, NGK for racing. No complaints on either. Just got done indexing 4 sets for the 460's in the drag cars.... I've ran the NGK's for about 5 years in racers (circle burners and drag cars) with no complaints.....

this is scary i a agee with a ford guy i have used the bosch plugs and denso to. i do not care much for AC any thing but AC

NGK split fire for the 427,she runs a 50pump/50-110 mix gas, more carbon build up and NGK cleans well. Same with the stock Mustang 289, but in the daily drivers that run 89 octane, I run the platinum.

nothing but Motocraft unless i can't get those, then Autolite & I've been running those in my Chevy's since the late 70's.. you couldn't give me a Champion or an AC plug to use, unless i was using them for wieghts for fishing ...joe

standard autolite 86's for street and standard autolite (85's for the track one range colder for the track)

Originally Posted by Dave Severson

I use either Autolites or NGK's, Autolite on the street, NGK for racing. No complaints on either. Just got done indexing 4 sets for the 460's in the drag cars.... I've ran the NGK's for about 5 years in racers (circle burners and drag cars) with no complaints.....

DING,DING,DING we have a winner.
Walk through any pits with an engine that costs a few bucks and 8 out of 10 guys have the NGK plugs at least the guys that win do.
We run the plugs that cost $1.89 and can't tell any difference in the dyno room or on the track over all the other hi dollar plugs.