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Discussion Starter · #1 ·
Money is no object, I want to know which would be better for my 95GT. Not too concerned about horsepower, I just want smooth, reliable service and possibly a better low end.
 

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i got the platinum 2's and i like them. Originally i just had the platinums (they were crap by the time they came out) and i did see a small improvement in throttle response and the like but since i have never had the 4's i can't compare those. They look slightly excessive though.

Dave
91EGT
 

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I've got the platinum 2's and I too noticed a smoother response after I installed them. The 4's seem like a little bit overkill, but they may actually help the smoothness out even more, I just can't say.
 

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I have the platinum 4 8O , Love them They make the car run smoother and specially when you drive at 4000 to 7000 rmps :p

When I installed them back some time before the winter, I notices more throttle response, and the engine rev'd up a lil faster.. anyhow thats my 52cents worth.
 

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sorry to be the little punk that I am Siragan but........My dad says im gonna need to change the plugs and wires sooooooooooooooooo any reccomendations?
 

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Whichever is cheaper.. because there's no difference. The spark is only going to jump across one electrode, unless that one electrode happens to burn down (which is rare is a properly running NA engine).

If you are going to spend that kind of money for platinum plugs, do it because you don't want to change them out for another 100,000 miles, and no other reasons. That's the only benefit of Platinum or Iridium plugs, they don't ever need cleaning from fouling, because the rare elements are stable, and will not react with fuel or carbon deposits. Any new car that claims it doesn't need a tune-up for 100,000 miles has platinum plugs, and that's why the automakers make that claim.

With the ease of changing plugs in a DOHC engine like the BP, I'd think you'd want to go with something that would deliver a better spark (more power, better response, better economy) than something that would last a long time. I've removed plugs on engines like Subarus where you're sure it would have been easier to do if you'd removed the intake, AC compressor, steering pump.. etc.. on a car like that, I prefer to run plugs I don't need to mess with much, and the $7~8 per plug would be worth the investment. On a BP I'd buy some NGK V-Powers for $1.50 each and pull them out and clean them and re-gap them every 6 months.

But that's me.
 

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oh yea he also said a new distibutor also........starting to sound expenxive to me :? 8O :evil:

edit: I just noticed your avatar thingy that guy looks like me right now :lol:
 

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On a BP I'd buy some NGK V-Powers for $1.50 each and pull them out and clean them and re-gap them every 6 months.
Beaverboy you sound like you come from a mechanical background. 1) Are you saying on a 2nd generation escort with a bp motor, you would buy essentially stock sparkplugs because there is essentially not much benefit to be derived; other than less fequent change interval which is made irrelevant by the easy access to the plugs?

2) Also, the second question is how would you rate the stock spark plugs from the ford dealership. How do they compare to the NGK VPowers? Or are they the same thing? The ford parts guys seem to love them best and even my mechanic who has nothing to do with ford recommneds the OEM part.

Just curious what you have to say. Just looking at it from a physcial chemisty point of view, I don't see any great benefit to the platinum or iradium spark plugs in an escort either. Other than, like you said, the latent low reactivity and thus lower tendency to form crud by reacting with surroundings compounds in the engine; thus longer life.

What I'm saying is, you make a lot of sense, and if you could kindly answer questions 1 and 2, I, and I'm sure others, would much appreciate it.
 

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No, not really a mechanical background. I used to admin a forum site where a lot of discussion of this type went on from a whole bunch of people from a lot of differnet backgrounds.

I've heard raves over platinum plugs, even used them myself. Most people talk about the change in HP and throttle response.. but then you realize the guy talking about the increase is talkign about the plugs in his motor home and doesn't know what HP is. Any time you put fresh plugs in, you're probably going to notice a slight increase in throttle response over your old plugs.

I don't know what kind of plugs FMC calls stock, so I can't say whether or not I prefer them. I can say that as far as spark plugs go, people fuss over them too much when seeking out an upgrade. There really isn't much room for improvement over a basic everyday plug. Plugs like Rapid Fires use extremely low internal resistance to essentially advance the timing. If you use Rapid Fires on EDIS car like the 1.9, then the computer will automatically dial back the timing after a few miles, so they're a waste. If you install them in a vehicle with an adjustable distributor, then you've wasted $16 on something you could have done yourself.. advance the timing.

If you want to improve the quality of the spark in your combustion chamber, index your plugs. This means marking the ceramic body of the plug so that you know which direction the electrode is pointing once the plug is installed. Then, using thin washers, add them until all the plugs face the best direction (I'm not sure what direction that is on DOHC motor.. on a SOHC motor, it's so that the electrode is at the top, pointing down). Since the electrode can block the combustion from igniting fuel/air behind it, it seems counter productive to install more than 1 electrode, since 1 is all you need.

Multiple electrodes are helpfull in modified turboed engines with aftermarket ignitions where internal temperatures and super hot sparks can melt down electrodes... other than that.. I say avoid them and their extra cost.

Make any sense?
 

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Discussion Starter · #12 ·
Well despite all the hype, and lack thereof... I bought the bosch platinum +4's just because they came with a LIFETIME warranty, and I got home and installed them.

The idle was much much more stable. Almost rock solid. I won't say completely rock solid, because that would require an MSD or something, but it was much better than before and even better than my other GT or my mom's LX. The power was better on the low end (although that's because before I was essentially on about 3.5 cylinders) and the top end got really smooth. I mean really smooth. It pulled smooth and hard from 4000-6000 rpms and never missed a beat. The most noticable feature of these plugs is how smoothly they run. And that's about it.

They were 25 bucks for the whole shabang, but it's a lifetime supply of them and they got me home, so I'm happy. I'd definetly recommend them. We will see how they do a couple years down the road.
 

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I am pretty strong about my choice of spark plug. The only way to go for smooth idle, performance, and longevity is IRIDUM. NGK and DENSO make them and they are the best for everything. exc. NOS, supercharger and turbo. The iridum is a stronger material that lasts 3 times as longer then platnum, and there is an actual difference in the way the overall drivabliltity of the car. I had the 4's and I can only see those working good maybe MSD or whatever, but I would still go with the IRIDUM's. Thats my story and I am sticking to it. :D :D
 

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At less than 2 bucks for a standard plug, who needs a lifetime warranty on a sparkplug??????? The platinum plugs made no difference in my car whatsoever. They work well, yes, but so do the factory plugs or a decent pair of regular plugs. So a guy would have to replace them once in a while...big deal, theyre spark plugs for crying out loud; youre supposed to replace them. Id much rather spend the extra money for a lifetime warranty on tires. Makes about as much sense to me, but everyone has their opinion. If your car ran smoother when you installed the sooper elite titanium cobalt 6 prong mega zap spark plugs, then it was probably time for you to replace the old plugs anyway. I wouldnt complain about having to replace my plugs every couple of years or so, I prefer the piece of mind knowing that theyre in great shape.
 

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i run the Bosch performance wires, and then the platinum 2s. and it runs a little bit smoother, but i think i have a bad wire, SO to answer your question 95, ITS ALL OPINION, wether you want to spend the money, or not. So if you want to spend the 7 or 8 bucks a plug. I think anything would work, and id stick with an OEM dist. Thats my 2 cents
 

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i popped in the 4's. and surprisingly, i can actually kinda feel a difference: (unless, it's all self-conscience).
 

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your also putting in new plugs that would have something to do with it now that youve put those in swap to some stock plugs and see if there is really a big differance
 

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I have found that NOBODy knows the engine better then the ones that made it. OEM plugs are the best plugs you can use. Gimick plugs like Splitfires, Bosch +2's and +4's, Beru Silverstars, etc. are just gimicks. Whenever you put new plugs in a car, your engine will run smoother and have more power. Is it because the plugs are better then the OE ones? Nope. It is because the plugs are new. A good set of wires (yes there is a difference between wires) such as Magnecore, a Dist Cap. (I have never been able to find a brass cap) and good old Motorcraft Plugs will give you the best combination for your ignition system.

Find out what kind of plugs NHRA, NASCAR, WRC, and others are using. Those gimick plugs are not used in those cars. In one run down the track in an NHRA drag race, those plugs see more wear then your plugs will see in 20,000 miles. Those engineers look for every possible advantage they can get. If a set of plugs will give a dragster 5 extra HP, they will use them. Every little bit helps.

Just a different angle to look at.


Tom
 
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