spark plugs
#3
i have seen some members get the plats for around 8 bucks shipped each online. i just use coppers from advance auto @ 1.69 a piece and change them once a year in the spring or every 15k or so miles.
#4
Originally Posted by sloppymax
i have seen some members get the plats for around 8 bucks shipped each online. i just use coppers from advance auto @ 1.69 a piece and change them once a year in the spring or every 15k or so miles.
Plats for 8 bucks, that's a steal.
#6
Originally Posted by sloppymax
i have seen some members get the plats for around 8 bucks shipped each online. i just use coppers from advance auto @ 1.69 a piece and change them once a year in the spring or every 15k or so miles.
#7
Originally Posted by mclarengts1
are Iridiums worth it
That's what I'm getting next, i've never used them before but I hear good things. Last longer than copper, conducts better. I figured I would try them out since they aren't very expensive.
#11
No matter what anybody says, copper is the best! They are high maintenance and less durable, but they are the best conductors. If you don't mind doing the work every year, buy the cheap plugs. If you don't believe me, do some research and you'll find that copper is one of the best conductors in the world (second to silver). That's why your house is probably wired in copper!
#12
i would personally rather have a better conducting plug and with less wear in my engine. at the price i pay changing them out once a year, it would take 5 years to run the same costs for one set of plats. i do not mind replacing them more often and find it to be an quick and easy job.
#14
I run NGK IX iridiums, and they run awesome. You can get them on E_Bay for $38. Whatever you do stick with NGK. It's not worth all the hassle to take off the intake manifold ($23 intake manifold gasket each time for 3.5 engine) to save a couple of dollars on plugs. Run a good plug, don't f*ck around with anything else. Between pinging problems people have complained about, and weak coils, is it worth it to skimp on the plugs? You are not gonna really gain anything in the HP department (just a properly running engine) regardless of what you use, but you can save yourself some time and aggravation by getting the plugs that the car was designed to work with.
#15
Changing the spark plugs is not THAT hard, but the coppers will wear out more quickly than the platinums, which means that you'll need to replace them pretty often (as stated above). The coppers may, in fact, be better conductors than the platinum plugs, but the platinums are not bad at all. Unless you're heavily modded or you have a very weird driving style, sticking with platinums in or near the stock heat range should be fine for you, and it will require maintenance less often on your part.
#18
Originally Posted by PRO - 1
would anyone put 2 step colder plugs if even there not spraying ?
#20
Originally Posted by PRO - 1
would anyone put 2 step colder plugs if even there not spraying ?
#21
I'm thinking about changing my plugs. I would like to go with 2 steps colder copper cores but I don't think NGK makes them. For a 3.5 the partnumber for a stock copper replacement should be LFR5A-11. I think 2 steps colder would be LFR7A-11. Reason why I would like to do the 2 steps colder is because someone said that they alleviated their engine ping that way. I have horrible ping and I’m willing to try anything. I had 2 step colder plugs in my '97 maxima and encountered no performance problems.
#22
Originally Posted by mclarengts1
thats what i need to hear, cause I got 100,000 miles and need to get some new ones in like yesterday
#25
Well i'm bone stock with 50k miles. A couple of bux per copper plug won't kill me financially to perform an experiement in order to possibly remedy my engine ping. My only concern is the rear bank of plugs... a little complicated maybe.. haven't tried it yet. If I can't find colder coppers then I'll just try the coppers in the stock heat range.
#26
Originally Posted by spastic
I'm thinking about changing my plugs. I would like to go with 2 steps colder copper cores but I don't think NGK makes them. For a 3.5 the partnumber for a stock copper replacement should be LFR5A-11. I think 2 steps colder would be LFR7A-11. Reason why I would like to do the 2 steps colder is because someone said that they alleviated their engine ping that way. I have horrible ping and I’m willing to try anything. I had 2 step colder plugs in my '97 maxima and encountered no performance problems.
#27
Originally Posted by spastic
Well i'm bone stock with 50k miles. A couple of bux per copper plug won't kill me financially to perform an experiement in order to possibly remedy my engine ping. My only concern is the rear bank of plugs... a little complicated maybe.. haven't tried it yet. If I can't find colder coppers then I'll just try the coppers in the stock heat range.
#28
Originally Posted by spiromax
If you're having pinging problems on the stock plugs, you might have a problem. What grade fuel are you running?
#29
Originally Posted by spastic
I'm thinking about changing my plugs. I would like to go with 2 steps colder copper cores but I don't think NGK makes them. For a 3.5 the partnumber for a stock copper replacement should be LFR5A-11. I think 2 steps colder would be LFR7A-11. Reason why I would like to do the 2 steps colder is because someone said that they alleviated their engine ping that way. I have horrible ping and I’m willing to try anything. I had 2 step colder plugs in my '97 maxima and encountered no performance problems.
#30
Originally Posted by Bensmax00
ur plugs in the rear arent that difficult man, u just have to remove like 6 bolts to get the intake manifold off-make sure that u replace the gasket. also about the pinging--this is my opinion--I havent really come up with an answer and I work at a dealer--people tell me that its the coils-my 2000 and ive already replaced them--I use 91 octane--cuz thats all they have but still hear it every now and then--the only thing I havent done is hook up some chasis ears to couple of places in the engine area--can not hear it at idle---thats y when u go to the dealer for this issue they tell u to use premium gas and come back when it happens again--nobody wants to spend the time--cuz nissan will not pay us to diagnose it--so most techs will tell u a story. these engines are very sensitive to fuel and spark noises
I really miss my '97 maxima
#31
Originally Posted by sloppymax
instead of going with colder plugs, you may want to see about getting the timing retarded a degree or two. colder plugs are dyno proven to loss power and two steps is big jump. if you do not want to do the timing then try one step colder.
#33
Originally Posted by spastic
I was under the impression that jacking with the timing also decreases performance. I don't think they make 2 steps colder for the 3.5. Can't seem to find any documentation on them at least. 1 step colder I haven't tried looking for. Maybe one of my plugs is somehow fouled. I just need to replace them and take them out of the equation. Thanks...
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