Alright i have Q about the split fires and rapid fires. Are they worth the money. Do they hurt or help your gas millage. All i was thinking about some platinum split fires. but if these is a better plug let me know I would like to get all a i can for the money.

 

IMHO they are a waste of money. I would just stick with some NGK plugs.

 

The Rapidfires are now a regular platinum plug it no longer has the no gap tip. They are a really good plug but the Split Fires are crap.

 

on the tv comercial it shows two arcs on the splitfire. thats pretty weird because I thought that electricity takes the path of least resistance...........my algebra2/physics teacher a couple years ago is a real hot rodder and we decided to test these pieces out. we went to his shop and used the spark plug tester and it only arced (sp?) to one of the electrodes................. soooo in short....

 

Which one of the NGK plugs whould i go with ? What is the advantage over the rest of the plugs out there?

 

NGK TR 55

 

NGK TR 55 .... Do they help or they just pretty.

 

NGK's are a nice copper plug. I ran TR6's when I had the juice. The only thing I didn't like about it, they had a screw on cap where it attached to the spark plug wire boot. I had it come loose, and the wire fell off of the plug.

I've gone to ACDelco plat's, and I love them. And they don't have that screw on part, its all one piece.

I had Split Fires in my 454 Suburban, they worked well enough considering the original spark plugs had 80,000 miles on them. They also had that stupid cap on them.

 

So actualy it probly does not make that big of a differance. thanks

 

save your $40-$80 bucks and buy some regular copper plugs...I use NGK TR55's, but I would imagine autolites for $0.99/each work just as well.

 

are you being serious or are you just kiding. autlites .99 compared to the NGK's. Then why do you have the NGK'S. .. What advantage do you ahve with the NGK over the .99 Autoltes. There has to be a reason that they are so excpensive. I am confused now. That is like saying you can use a fork to eat a bowl of cornflakes it works just as good as the spoon. There is a reason for everything. Like why you used the NGK'S over the Other brands. That is what i am curious about. Why is the NGK so much better. Better fuel burn better acceleration. better gas millage. What idfferance did you notice with your NGK'S .? If you are just paying for the name i guess i coulde understand . but that is the Q's i am asking. I appruciate all the help so far guys. But i am confused now . .99 auto zone specials would work just as good as the $40 - $80 NGK'S ? ..

 

Unless you're using a crappy plug like the bosch 4 prong deal the plug you choose is not going to have a huge impact on performance. I'm not saying gap or heat range does not matter.. I'm just saying the brand choice is not going to net you any 5 rwhp. The benefit of the platinums is that they are supposed to last longer I believe... I don't think they offer any feasible performance advantage though I may be wrong. I have also heard of some platinum plugs dropping their prongs or some such (which would be bad).. I dunno, probably just stories and I don't want to perpetuate myth but you could do a search and look into it. The deal with the ultra expensive plugs is their lifespan, take a look at the iridiums.. wow those are expensive. A lot of new cars come with those plugs and they don't get changed until something around 100,000 miles

I use the TR55's because they are what everyone else is using without problems. I am a lemming I do know some people do use the autolites without problems. Fact is, I just feel that the NGK TR55's are a good plug, any cheaper and I'd fear quality issues and any more expensive and I think you're just getting raped.

I *believe* the car does come stock with ac delco platinums (disclaimer: I may be wrong) and you know GM chooses everything for a reason. I don't think they'd chose an expensive plat plug unless they felt it was necessary.. BUT I don't use the ac delco plugs - I use NGK and have no problems.

Bottom line, you're making too big a deal of this.. just go buy something other than bosch +4 deal or the split fires and I think you'll be fine. I use and recommend the NGK TR55's but I think any other standard type plug would be ok too.

Oh, fyi the multi pronged plugs don't work because, as someone else correctly stated, the current will choose the single path of least resistance, I don't think it will split into two or 4 streams. The larger prong area, esp. with the bosch plugs, will simply shroud the spark and lead to a poor burn. All gimmicks.. don't buy into that crap

 

Thank yo ufor the insite on the 2-4 prong plugs. ii appologise for any in conveinace i have been to any of yall. I have just been hearing about the NGK'S for a while. I know i got a little carried away with the discusion. i appologise once again. thank you for all your help guys

 

ngk 's are pos plugs...get some real plugs like AutoLite 106

I hate ngk plugs since the top comes lose every few days!!!! Autolite do not have this problem as they are all solid

Autolite

 

Lost,

As far as the +4's that you so adamantly despise, they do not claim to spark on more than one electrode, but what they do is give the spark multiple paths to travel. True, electricity will take the path of least resistance, but anyone that knows anything about electronics knows that heat changes the resistance values of electronic devices (also remember temps in a combustion chamber). Therefore, the original path that was traveled will get warm, and voila! the next electrode becomes the path of least resistance. That is why those plugs are designed in that manner. I wanted to see for myself if they were worth a damn, so I bought a set for my '95 Z. Maybe I'm crazy, but a 2 hour job to change plugs just to see if they work! Anyway, I put them in, and of course the gas mileage went up, and throttle response was better (any tuneup is likely to do that), but my idle was smoother, and it was easier to start. I am not saying that these are the best plugs out there, but they arae definately worth trying once. I will caution though, I have heard of some people having problems with these plugs. It may be because there is no way to check correct gap, and everyone knows that f-bodies are a nightmare to change the plugs on. So, it is possible that the gap could get changed and they may not fire correctly. That would be my only complaint about them.