93 G20 Spark plug gap?

[Frank_S]

Could someone verify the proper gap. I'm using OEM NGK plugs. Thanks in advance!

[A380Driver]

Copper or plats?

[paradyme]

You should only be using platinum (hope I spelled that right). and they come pre-gapped. No need to tamper with the plug, just install it. I have never gapped my plugs and I have never had a problem.

:flash:

[JustinP10]

I run plats because they last a lot longer than the copper ones. The copper ones should work the same, but they don't last as long, like a fraction of the time (but they are cheaper). I believe the plug gap for plats is .039 - .044 but don't quote me on that. I know the info is in the se-r.net archives. http://www.se-r-list.org/archives/

[NismoPC]

Originally posted by paradyme
You should only be using platinum

Why? The P10 G20 Owners Manual specifically states that either the PFR6B-11 Platinums or the BKR6E Coppers are standard spark plugs for the SR20DE. (NOT THE BKR6E-11's)

If you are looking for a cost effective replacement, the coppers are fine and they need to be gapped at 0.031 to 0.035. That is different than the platinum plugs which are pre-gapped at the 0.044 range.

I already researched this and had a few members help me out on this. Reason coppers are more cost effective. You can buy two sets of coppers for much less than one set of platinums. Platinums are recommended to be replaced at 60K and coppers at 30K. You do the math.

I did and therefore I am running coppers.

[ty423]

Just recently changed mine and gapped them also at .44

[NismoPC]

Originally posted by ty423
Just recently changed mine and gapped them also at .44

Coppers or Platinums? Just so there is no confusion. I will assume you bought Platinums since you gapped them at 0.044.

[ty423]

actually I have coppers...and gapped at .44

[NismoPC]

Originally posted by ty423
actually I have coppers...and gapped at .44

Hmm? I don't know much about gaps and spark, but since the manufacturer suggests gapping the Coppers at 0.031 to 0.035, does anyone know what advantages/disadvantages can be had by gapping them at 0.044 as ty423 did instead of the recommended gap?

Mine are gapped at approx. 0.033 and they are the BKR6E's (Copper). Just wondering if there is any benefit to gapping them at 0.044.

[paradyme]

Everything isn't made to be modified. My owners manuel only speaks of using platinum plugs, offering a hot or cold non platinum plug. If your car is or ever was serviced at the dealer and plugs needed to be changed, only the platinum plug is used. My manuel does mention gaping I assume for those who wish to use regular plugs. Like I said the platinum plugs come gapped and they last a very long time, so long that I never have needed plugs when Iv'e changed them. I know it's fun to tinker but I'm happy with just simply installing them and moving on. Nissan has done the work for me.


:flash:

[JustinP10]

That's true most of the time, but after big mods you may want to change your plug gap, something such as a high shot of Nitrous, or forced induction would most definitly require a smaller plug gap. But for stock-full bolt ons (most of the time), the stock gaps should be ok, from what i've read.

[NismoPC]

Originally posted by paradyme
Everything isn't made to be modified. My owners manuel only speaks of using platinum plugs, offering a hot or cold non platinum plug.

That is really odd. I am looking at a owners manual for a 1991 Nissan NX2000, a 1991 Nissan Sentra, a 1996 Sentra, and a 1996 Infiniti G20 and everyone of them list both plugs as standard for the SR20DE. The PFRB6-11 and the BKR6E.

AND all four manuals list 3 alternate plug ranges on top of that, which is HOT, STANDARD, and COLD. (5,6,7)

Hmm?

[paradyme]

I said it mentions a hot and cold stardard plug but states you should used the platinum. My point is any mod normally drives some sort of cost, yes platinum plugs go for 7 bucks each and this is why you should use the recommended plug, for NA engines. Why go cheap and loose the benefit of pre-gaped long lasting plugs to plugs you have to tinker with and they don't last?:flash: Just examine all the spark plug problems people have reported related to foul plugs. I know reasons are many and some just spell neglect. Why take short cuts when you don't have to?

:flash:

[Frank_S]

Thanks for all the responses, I measured the PLATS and they come pre-gapped at between 0.041-0.043. I will install them as is. Thanks again!