Got a question. I've finished building my LS/VTEC and came across something interesting about spark plugs.

I am using a 2001 ITR Head with a B18a1 Block with OS P30's so about 11.5-12.0:1 Compression.

I am searching NGK's site for 2001 Integra Type R spark plugs and they have the Iridiums listed : BKR7EIX-11. But then I search 2000 Integra Type R & GS-R and they both came up BKR6EIX-11.

I know the difference between the 6 and 7 is heat range, but I don't know which one is colder or hotter.

Which one would be better for my setup? I am thinking to just use the BKR7EIX-11 from the 01 ITR since the ITR motors are higher compression.

 

I just read on NGK's site that the higher the number, the colder the plug.

 

7s

 

BKR7EIX-11 Stock #2667

 

the 6 is hotter and the 7 is a colder plug

http://www.ngksparkplugs.com/d...y.pdf

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by dr.garagetuner &raquo;</TD></TR><TR><TD CLASS="quote">the 6 is hotter and the 7 is a colder plug

http://www.ngksparkplugs.com/d...y.pdf</TD></TR></TABLE>

Ya I already figured that out. Thanks.

 

7's all the way.

i ran 8's on the dyno and my tuner said they were too cold. still made 196 tho!

 

you don't need iridium