i just hit 100,000 in my 97 max and i wanted to replace the spark plugs i was woundering what are the best spark plugs to use

thanks
97BLKMAXSE

 

Go here and don't look back...
http://www.ngkwholesale.com/

NGK's only. Nothing else.

 

NGK Platinums unless you are running boost or spray then NGK copper.

 

NGK Platinums all the way, restores performance nicely

 

What's everyone's beef with Bosch plugs? Sorry I'm tuning in late...

-Jon

 

Is that what you're using for your 100shot, the coppers? I was thinking of switching to see if I'd notice a difference. I'm usin NGK Iridiums 2steps colder

 

they seem to work ok but they just go bad quickly in our cars its wierd... German plugs for German cars? Japanese for Japanese? makes sense?

 

Will replacing a bad set of plugs retore alot of power ??

 

In my Max I replaced OEM NKGs at 51,000, plugs looked great but I replaced them anyway. It made a big improvement in milage and performance. The new plugs restore your car to normal, the old plugs gradually lose some performance so we don't notice. When we change the plugs there is a noticable improvement. Based on my experience I plan to change my plugs at 40,000 miles. I think the savings that we get by not replacing the plugs until 60,000 milers goes out the exhaust pipe in the form of poorer mpg and lesser performance.
Be well!!!!

 

The reason for the copper is the spark is fatter and you are taking a chance of the flame blowing out running spray with platinum and iridium. That is the same reason you gap it closer. I am running 2 steps colder coppers at .035 gap.

 

like karguy mentioned, i just replaced my original NGK's with new ones at 60k, and although the plugs werent too bad off the gas mileage shot up and acceleration smoothened out. its funny because i didnt think the acceleration could get much smoother, but it did. my mileage went from about 22.5 to 24 with the change.

 

Hmmm...oh well. I installed Bosch platinum plus 4's a few months ago and everything seems to be going alright. We'll see how soon they degrage though. I just read the last post on this thread and saw people getting 22-24 mpg...is that common? I only get about 20... maybe because I'm using the Bosch plugs? What mileage does everyone else get and what plugs do you have?

-Jon

 

I used to be a "What's the problem with Bosch?" guy as well. They started out fine, but now after 40k miles I can feel the deterioration. I can't wait to get the NGK's and put them in.

 

That's such a strange problem that the Bosch's deteriorate quicker in Japanese cars? It'll probably be another 4 years or so before I put 35K more miles on these plugs, so that doesn't bother me. I guess I'll go back to NGK after the Bosch's.

-Jon

 

I really don't think that the problem with the Bosch is a degredation issue. The NGK platinum is required because of a conductivity issue....it allows more electricity to pass through it resulting in a stronger spark, for longer periods. I think that your car will feel okay with non NGK's, but for efficiency and longevity the NGK's are the way to go. I just did mine, got them for $8 each, and they are great. Expensive at first, but then you just forget about them!

The conductivity issue was discussed HEAVILY in another thread a while back, that sold me immediately. That thread should be a sticky or in the FAQ. Search for it!

 

I searched for NGK and couldn't find anything about conductivity. So what exactly is the issue with conductivity? I did read one thread and a post in it said that some people have even had their engines ruined by the Bosch plugs...is this true and why would this happen? My Boschs feel fine after about 5K miles. Thanks!

-Jon

 

I have always used ngk platinum plugs in my car until about a month ago. I put in splitfire plugs that I got cheap at k mart closing sale. So far, so good. I got improved mileage and power, I will have to wait and see how they age.

 

ONLY use NGKs - Platinum or Copper IT DOESN'T MATTER WHICH. I know because I have used both in the Minima. I would rather save the $45 and get something else.

Part Number for the copper plugs, as it's hard to convince a dealer to let you use them:

Spark Plug Number: 22401-50Y05

NGK V-Power Copper BKR5E-11

Cost: about $8 to $9 for 6 from Courtesy, Ultimate Z, nissanparts.cc, etc.

 

Damn, I didn't know that. I just checked my plugs today and was a little worried because of the color of the tip. The entire tip is reddish orange. I'm not sure if that's normal or not. My instincts tell me I might be running too hot, what do you think?

 

Go with Denso.

 

why Denso iv never heard of them

97BLKMAXSE

 

There are the OEM plug for Toyota and are very good plugs. A drawback
to the DENSO Iridiums is that they have an alloy side electrode (the new NGK Hybrid Iridium has a platinum side electrode) and Denso recommends that they be replaced every 30,000 miles.
Be well!

 

where can i get denso plugs?

 

I just got a set of Denso Coppers two steps colder for my car..I will post the results Sunday night as I am running them on thebottle at the track Sunday ... keeping my fingers crossed.

 

so is this the cheapest place to get them?

 

I have Densos and they work fine.

 

hey Tracy I need to get some plugs one step colder... how are the Densos? pricewise? or should I stick with my fave NGKs

 

The Bosch only cost $1.19 compared to the $11(can get for less, I know) for the NGK. People think that since they are both plats it's the same thing...

 

NGK Copper..

if you can't afford it.. then get a buss pass

if you are lazy and don't feel like changing them every 30k miles.. then get plat.. but the copper has a better spark.. and that makes you faster i think

nissan part number included below

 

There seems to be an echo in here between me and Sprint:

 

 

Basch Platinum 4's cost around $8 or so. I've never had a problem, kept the first Bosch set for 50k and replaced with the same. Car runs smooth. In addition, I got 31mpg on my last tank of gas (filled up this morning) .

I don't think you can go wrong with either Bosch or NGK. Never tried anything else.

_______________
96 GXE Auto
going on 155k miles . . .

 

ok are the NGK coppers pregapped? I'm going to get a set this week. I have intake, ypipe and nos 70 shot. I dont want to be getting colder plugs, as they seem to hurt off the bottle performance.

I'm gonna get the coppers and will be changing them every 30k, because now armed with sprint's write up, I am not afraid of changing the spark plugs anymore.

Should I be getting ONE step colder coppers? And what gap are you NOS'ed guys using? Any feedbacks and recommendations greatly appreciated.

 

If you order the proper part number from Nissan, then they are probably pre-gapped. My order came pre-gapped to .044, which is acceptable.

Sprint alluded to them not being gapped in the past, so I'm only passing along my experience.

 

check this out..

http://forums.maxima.org/showthread....ghlight=gapped

.. i ran 100 shot on stock heat range once i killed dmbmaxima all the way to NJ and then when i tried to drag.. my car was hesitating.. in RPM range from 4500 to 5500 rpms the car would hesitate like crazy.. later on i checked my plugs and i had burned off the electrode on one of my plugs.. changed them and hesitation went away..

i am running 1 step colder now.. BKR6E @ 35 mm gap

 

Even though they are supposed to be pre gapped I always take a few minutes to check them myself. The spark plug gauge is only about a $1.00 and you know the gap is correct!