does anyone know any manufacturer part number for a plug in the 8 heat range? i have a 00 si and the stock plug heat is a 6...so i'm trying to run 2 steps colder. i used ngk bkr7e's at the track last weekend and when i pulled them, the ground electrode was half disintegrated and the center electrode insulator was broken...the result of detonation. thanks

-marc

 

enjoy

ngk 7173 racing plugs
http://www.ngk.com/results_cro...7&y=4

 

hey thanks!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by marcdogg816 &raquo;</TD></TR><TR><TD CLASS="quote">hey thanks!</TD></TR></TABLE>

look bottom right chart, you see bkr7e and to the left of it ngk 7173

 

i noticed that these 7173 plugs do not have a resistor. are they safe to run in honda motors?

 

according to that chart bkr7e doesn't have resistor either

 

interesting because the sparkplugs.com partsfinder says the the bkr7e does have a resistor while the r5672a-8 does not. have you run these plugs?

 

i use bkr7e

 

ok thanks. i'll try them out.

 

I'm running R5672A-8 on my H22.

 

denso iridium ik22 is the same as a 7 heat range ngk. denso goes all he way up to 32 heatrange.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by marcdogg816 &raquo;</TD></TR><TR><TD CLASS="quote">i noticed that these 7173 plugs do not have a resistor. are they safe to run in honda motors?</TD></TR></TABLE>

yes, and we've also used these in the 9 heat range. NGK just came out with the iridiums in 9 heat range too....

 

v power num 7s are pn 4091.
v power num 8s are pn 4554.
v power num 9s are pn 5238.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Gravy &raquo;</TD></TR><TR><TD CLASS="quote">v power num 7s are pn 4091.
v power num 8s are pn 4554.
v power num 9s are pn 5238.</TD></TR></TABLE>

these are non-project tips, electrode sits inside plug housing. if you want something similar to bkr7e but in range 8 then its the ngk 7173 (also V power electrode copper)

 

I run BKR7E's ...lots of boost, nitrous, and lots of timing. (VW though)

Here's my writeup on them: http://forums.vwvortex.com/zerothread?id=1138834

 

Doesn't a Honda need the BKR7E-11??? The one with the resistor?

 

we run r5671-a 8-12 depending on what conditons there are. Plugs can be had any hot rod store.

 

am running 9's right now