i have two motors i need to buy new plugs for, and am open to trying some new ones.....

current: usdm itr motor (10.6:1 static c/r) with cams and itb's + nice header revving to 9500. I'm using the recommended plugs from the dealer currently, but have a set of bkr7e11's ready to go in.

it's replacement: 2.1L stroker talldeck motor at 12.5:1 static c/r with cams (jun3 or toda c or skunk pro 2's maybe?) and itb's + nice header revving to ???

Now I've heard some good things about rocket's modified autolite plugs... anyone still saying they're good???

 

NGK racing 7113 for NA setup.u have to find your own heat range depending on the weather.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by carboy_honda &raquo;</TD></TR><TR><TD CLASS="quote">NGK racing 7113 for NA setup.u have to find your own heat range depending on the weather.</TD></TR></TABLE>

Yup, these are awesome plugs We used it on our race car too.

Can you PM me the price you are getting them over there??

 

I think Champion C63cx (which is like an NGK 7) and c61cx (like an 8) are better than the NGKs. They have a cut back ground electrode--and don't seem to foul as easy with a cold plug.

 

NGK Part no. BKR7E-11

 

NGK Part no. BKR7E-11

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by sa90eg &raquo;</TD></TR><TR><TD CLASS="quote">NGK Part no. BKR7E-11 </TD></TR></TABLE>

i like the BKR7E's for 10.8 to about 12:1 compression. (heat range 7)
i like the R5671A-8's for 12:1-13.5:1 compression (heat range 8)

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by bambam &raquo;</TD></TR><TR><TD CLASS="quote">i like the BKR7E's for 10.8 to about 12:1 compression. (heat range 7)
i like the R5671A-8's for 12:1-13.5:1 compression (heat range 8)</TD></TR></TABLE>

I ran the 8's in my 12.(3-4ish):1 LSVTEC and those plugs were too cold for the application and the plugs were starting to foul. Usually with the 7's you're right on the money.

 

another option can be rocket's spark plugs...im running them and they seem pretty good

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by anti-jdm &raquo;</TD></TR><TR><TD CLASS="quote">another option can be rocket's spark plugs...im running them and they seem pretty good</TD></TR></TABLE>

bob martin's plugs can be any plugs you take a dremel to. its not the plug, its the principle of the matter which is making the spark larger. so you can lackey-mod your ngk if you so desire.

 

i run zex cold plugs, they work great for me

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by LSVTEC 91 Civic &raquo;</TD></TR><TR><TD CLASS="quote">I ran the 8's in my 12.(3-4ish):1 LSVTEC and those plugs were too cold for the application and the plugs were starting to foul. Usually with the 7's you're right on the money.</TD></TR></TABLE>

Just curious...the one's I posted? I'm not having any fouling issues with the 8's I listed in my application. 81x89mm lsvtec, 12:1 compression, tuned to 13:1@WOT. Tanish color on all plugs.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by bambam &raquo;</TD></TR><TR><TD CLASS="quote">Just curious...the one's I posted? I'm not having any fouling issues with the 8's I listed in my application. 81x89mm lsvtec, 12:1 compression, tuned to 13:1@WOT. Tanish color on all plugs.</TD></TR></TABLE>

All I know is the NGK part number is 4554 for those 8's. When I run the 7's, the plugs are nice and tan, but with the 8's they were black and sooty.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by LSVTEC 91 Civic &raquo;</TD></TR><TR><TD CLASS="quote">All I know is the NGK part number is 4554 for those 8's. When I run the 7's, the plugs are nice and tan, but with the 8's they were black and sooty.</TD></TR></TABLE>

Those weren't the one's I ran. The one's I ran were the v-power 8's...I think the plug you are referring to is in a different class of plugs...different type or something.

 

Autolites
Modified Autolites

Most NGK plugs have great quality but usually gets beat by the Autolite. Some apps only NGK has a suitable plug such as high high comp/high dome NA. Then you would want to use something like NGK R567 plug.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Don Lackey &raquo;</TD></TR><TR><TD CLASS="quote">Autolites
Modified Autolites

Most NGK plugs have great quality but usually gets beat by the Autolite. Some apps only NGK has a suitable plug such as high high comp/high dome NA. Then you would want to use something like NGK R567 plug.</TD></TR></TABLE>

noted. the autolites are only like 1.34 at kragen. got a part number?

 

3924, 3923, or 3922. Corresponds to NGK heat reange 5, 6, and 7 respectively.

 

i have always just used the copper ngk, which ever that is, because form what i understand, oem honda ngks are actually platinum and copper is a better conductor blah blah

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by bambam &raquo;</TD></TR><TR><TD CLASS="quote">Those weren't the one's I ran. The one's I ran were the v-power 8's...I think the plug you are referring to is in a different class of plugs...different type or something.</TD></TR></TABLE>

Ahhh yeah, That is teh "RACE" plug. It has the short electrode strap.

 

i have the RM modified autolites and they seem to work fine, really have nothing to compare them to since it's all thats been in there since i got the car. and it doesn't look too hard at all to mod your own.

what are you guys gapping your plugs at?

 

bosch!!! na just playing go with some
ngk's !!!!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jeffsciv23 &raquo;</TD></TR><TR><TD CLASS="quote">i have the RM modified autolites and they seem to work fine, really have nothing to compare them to since it's all thats been in there since i got the car. and it doesn't look too hard at all to mod your own.

what are you guys gapping your plugs at?</TD></TR></TABLE>

This is like ecu tuning...actually, it IS part of tuning. Every motor is going to want a different gap and there is no "universal" gap that is best. You want to have the largest gap possible without misfiring. This is so that the spark has a larger jump and effectively more burn. This is why it is beneficial to increase the gap with higher discharge aftermarket ignition systems. So, go test n tune to find your optimal gap!
For turbo setups, the gap is going to be smaller.

 

yeah i guess thats what i need to do. this is my first all motor set up coming from boost. figured there was a general or starting point.

 

Start at about .45 and then go up if you can. That should be fine regardless. It's better to go up in gap w/ a spark plug gapping tool, than to try to go down by smashing the probe down. The difference in spark plug tuning is only like 2-3 whp on a 250 whp motor anyway.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Don Lackey &raquo;</TD></TR><TR><TD CLASS="quote">3924, 3923, or 3922. Corresponds to NGK heat reange 5, 6, and 7 respectively.</TD></TR></TABLE>

these?

http://www.partsamerica.com/Pr...=3922