Ok well from reading all the posts in the pasts I was under the impression that the copper NGK plugs will give you slightly better performance than the platinum ones. I currently have the Bosch Platinum 4 Point Spark Plugs and theyre due for a change.

I went to Kragen yesterday and asked for the NGK copper plugs for the GSR and they couldnt find it for me under thier parts catalog. Actually they couldnt find any other NGK plug for the GSR other than the platinum and iridium one. I guess it makes sense that they want us to run the platinums for longer life. I looked it up at NGKs site and they also only list the platinum ones for the GSR.

Here is the only result I got from NGKs site:
1994 ACURA Integra GS~R 1.8 L4 B18C1 PGM-FI DOHC; VTEC

Spark Plug: Platinum
Part No.: PFR6G-13 # *
Stock No.: 4115 # *
Plug Gap: .052


I did a search and got confused as to which plug will actually work for the GSR. Can someone give me a part # for which NGK copper plug to use on my GSR. I'm only running a AEM CAI and ITR intake came.

If I can't get the copper plugs, I was thinking of getting the Bosch regular platinum plugs after seeing this thread: https://honda-tech.com/zerothread?id=136130

 

Get NGK Coppers, best bang for the buck and cheaper in the long run, even if you change them every 10K-15K miles. The part number is BKR6E-11. I'm on my second set of those now. I got them from NAPA, $1.89 each.


[Modified by PatrickGSR94, 1:04 PM 2/28/2002]

 

Thanks patrick... Do you know whats the plug gap the bkr6e-11s come in out of the box? Do you just pop them right in? If not, what should the plug gap be for the GSR running the copper plugs?

 

The 11 in the part number indicates that the spark plug gap is set at 1.1mm (.044").

 

can anyone tell me if i can get copper plugs fro an itr motor? Thansk also. Or is it ok to ruin gsr spark plugs ires n itr motors...

- Nam

 

From my experience the plugs are alot closer than .044" out of the box, more like .030 or .035... I had to open them up quite a bit to get it within the correct range (I set mine to .050").

 

Why not get iridium plugs. You pay more but you change them every 60k miles instead of the platinum ones which I think are every 30k miles.

 

how about the ZFR6F-11 plugs?

are those any good for high compression engine's?

 

Platinum should last 60. If you change copper plugs 4 times in 60K miles it's still cheaper than NGK platinums. If you change them 6 times in 90K miles it would probably still be cheaper than the iridiums. I mean really, it's a 5 minute job, one of the easiest maintenance items you can do.

 

I agree with Pat. Romeo, I use the BKR6E-11's also. I generally change them every 15k miles or so. Under $2 each.

 

Copper is a better conductor. Platinum just lasts longer.


[Modified by Farnsrocket, 8:13 PM 2/28/2002]

 

The part number of the ones that I recieved with my Drag 3 kit are: BCPR7ES-11. And those have been recommended by a pro drag racer. Notice it has "CPR" in the model name, which stands for copper

 

just follow the specs in the owner's manual.. i think it was 1.3mm or 0.051 inches for the GSR

 

actually, the "cpr" in the numeric designation stand for the sparkplug construction, not copper.

sparkplug info


[Modified by qwkteg125, 10:52 PM 2/28/2002]

 

looking at the "how to read ngk part number" sheet, I still cant figure out what the difference between BKR7ES-11 vs. the BCPR7ES-11.

so what is the difference???? P=projected insulator type?? K=projected tip???


[Modified by Crazy DA, 11:46 PM 2/28/2002]

 

Thanks Gary. I'm headed down to Kragen today after work and picking up a set of the BKR6E-11's. My poor teg's been needing a tune up now for the past few months. Hopefully this, along with the new fuel filter will bring some life back into it.

So just to double check once more, I'm getting the copper NGK BKR6E-11's and re-setting the gap back to 0.051". I'll post results on the butt dyno as soon as I get them in.

 

This is true. One thing I keep hearing is that "copper plugs are better that platinum plugs, because copper is a better conductor". Yes, copper is a better conductor than platinum. But if you notice, spark plug manufactors make adjustments for this. They either make the center electrode thinner in diameter or they only make the exposed tip out of out of platinum. Spark plug manufactors now what they are doing.

Also here is some informative information from NGK's website ( http://www.ngksparkplugs.com ):

Platinum spark plugs last much longer than conventional spark plugs and perform more consistently over the course of their service life.

The G-Power Spark Plug features an extremely fine center electrode of platinum combined with a sharp pointed ground electrode designed for better igniting performance. When compared to conventional plugs, the result is a spark plug that delivers better starts, superior acceleration and greater fuel economy.

Now I will agree that platinum plugs do cost more than copper, but I think you will get more consistent performance from platinum. BTW, yesterday I purchase Bosch Platinum+4 plugs for my GS-R @ $5.99 a plug with and additional $0.60 rebate per plug. I have used Bosch Platinum plugs in the past with very good results and I anxious to see how the new Platinum+4 do. I also bought the standard Bosch Platinums for my wifes Honda Odyssey (NGK copper is OE).