What are good spark plug choices for a '97? Any clearly superior choices?

I understand platinum is a must, right?

 

Platinum is not a must, they last longer that is all. Copper is much cheaper and works as well, just change them more often. Every 30,000 versus 75,000+ for platinum.

http://vbxmaxima.8m.com/sparkplug.html

 

NGK brand plugs are a must...platinum vs. copper depends on budget and willingness to change plugs more frequently.

~THT

 

What's the difference between cold/standard/hot, and why the higher price for the cold ones?

 

im running DENSO Iridium

 

I went with the NGK plats - set and forget.

 

I am running Bosch Platinum + 4

 

running ngk plats

 

NGK Platinums here.
Dont the coppers run a bit cooler then the platinums?
Bosch are crap compared to the NGKs

 

Running colder plugs is what FI guys normally do for a colder spark.


I run NGK Plats.

 

Yes NGK coppers are 1 step colder, they're what the boosted and spraying guys are using.

I'm using coppers.

 

I am running NKG platinums as well. There have been many people here who have had problems when running spark plugs other than the OEM ones (NGK), so just stick with those.

 

I'm running NGK coppers. 30k is long enough before I change them. Besides, I don't want any seized plugs messing up my block.

 

My plugs came out pretty easily at 120k. When I installed my new platinums I used antiseize on them. I guess I'll find out in another 40k if I will have any issues.

 

i use platinums, but i felt no difference, then again i did change plugs when my ks was bad

 

colder? what does that mean?

 

Running NGK Iridium

 

I got an IDEA.. why dont you ask a question that hasnt been asked a million times and answered a million more..
If you read the stickies it recommends NGK.. Copper Or plats your choice

Proph

 

be a bit more understanding comrade, some of us don't have access to the search function.

 

Bad idea homes.

 

the only difference are the pure platinums... which obviously is bank compared to the platinum plated.... haha...

Running..... NGK V-Powers (copps)

 

I was checking the manual and it didn't show a gap for the plugs...does anyone know what gap to use or what gap do you use?

 

plats are pre gapped checked the stickies for info on copper

 

NGK plats.. and would not consider anything else

 

Nowhere in the stickies does anyone ever mention the gap coppers should be set to. I asked this question a couple weeks ago, and someone responded they should be gapped between .038" and .045" - can someone else confirm this for hte rest of us?

Thanks

Greg

 

.044, and you should always check the gap even though they are pre-gapped.

 

running NGK coppers, 1 step colder for the NX, gapped at .040

 

i run NGK Plats.......i had a bosch plat break in the head....the electrode broke off and shot into my fuel injector on my 91 maxima Bad stuff

 

This is exactly why I told the other guy they were a bad idea they have a problem losing their electrodes.

 

i read a thread 2 months ago where most maxers use copper. this thread mostly are plat user. now i guess it's just personal preference.

 

I just put some bosch +4 in my maxima about a two months ago. Hopefully this doesn't happen to me. The car runs good though.

 

They both function and perform the just about the same. The coppers usually last around 30k and platinums around 60k. As for platinums there are platinum plated/coated and pure platinum which obviously has a huge price difference. And there is the coppers 1 step colders which are more beneficial for boosted cars.


Spark Plug/ Part No./ Stock No./ Plug Gap

Standard/ BKR5ES-11/ 2382/ .044
V-Power/ BKR5E-11/ 6953/ .044
G-Power Platinum/ BKR5EGP/ 7090/ .044
Laser Platinum/ PFR5G-11/ 2647/ .044
OE Laser Iridium/ IFR5E11/ 7994/ .044
Iridium IX/ BKR5EIX-11/ 5464/ .044


- From my experience with Bosch +4, I had no problems with them. No loss in gas mileage or power. I had them in my car for about 50k. However, this is just for me and may be different on other users. What i'm trying to tell you is that it is not a 100% fact that Bosch will mess up your car, it varies.


just my .02

 

atpham89, what does colder on copper mean?

 

Boosting the car will increase the pressure in cylinders and temperature. Colder plugs will not burn as hot which results in lesser horsepower. But it will help reduce the chance of detonation, run higher levels of boost, and helps in reducing excess heat in combustion chamber.

 

I run NGK coppers, no complaints yet.

 

http://maxmods.dyndns.org/index.php?MaximaSparkPlugs

 

I run Denso Iridiums gapped at .044. Great plugs.

 

Everything you need to know about plugs:

http://www.ngksparkplugs.com/techinf...000&country=US

 

A colder plug is one that is able to transfer heat from the plug to the cylinder head at a faster rate than a warmer plug. This is done to reduce combustion chamber temperatures in order to prevent detonation. Not necessary unless you are generating more than abut 50 extra hp over stock. I don't think the temperature of the spark itself is changed.