I have a JDM b18c type r swap in my da and i went to do a routine tune up... oil change, trans fluid, plugs, fuel filter, etc etc. and when i pulled the plugs i noticed they looked like this.



The tips are not white but they are a sort of deep grey. I noticed that they were bkr6e's and not bkr7e's .... my question is are they a little lean or do they look fine. I've put bkr7e's in the car and just wondering if that is a little lean will putting the colder plugs in help eliviate that problem.

 

looks ok to me...?

 

id put 'em back in. Look fine to me.

If they were white, or black and had crap caked on them, it would be a different story. Those plugs look perfectly healthy to me.

 

thanks

 

pretty sure stock heat range is 6. but you can use 7 no problem. those pics are hard to tell how good/bad they are. and really the only true way to check a plug is to do a WOT pull and kill the engine as soon as you let off the gas.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by RTW DC2R &raquo;</TD></TR><TR><TD CLASS="quote">pretty sure stock heat range is 6. but you can use 7 no problem. those pics are hard to tell how good/bad they are. and really the only true way to check a plug is to do a WOT pull and kill the engine as soon as you let off the gas.</TD></TR></TABLE>

And then look or listen for what?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by EG6-DC2 &raquo;</TD></TR><TR><TD CLASS="quote">

And then look or listen for what?</TD></TR></TABLE>

no then you pull over and pull the plugs. or if on a dyno, same things just kill the engine and pull the plugs

 

you sure stock heat range is 6... its all over honda tech that JDM itr heat range is 7

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by d3viant &raquo;</TD></TR><TR><TD CLASS="quote">you sure stock heat range is 6... its all over honda tech that JDM itr heat range is 7</TD></TR></TABLE>

All I know is USDM is 6, and Im using a 7. :shrugs:

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by d3viant &raquo;</TD></TR><TR><TD CLASS="quote">you sure stock heat range is 6... its all over honda tech that JDM itr heat range is 7</TD></TR></TABLE>

USDM ITR plugs (the ones you go and buy from Acura) are a heat range 6, Everywhere else in the world, ITR's use a heat range 7 and thats what outside US honda sells for them. I believe it has to do with the difference in the compression ratio. The US is 10.6 to 1, while the rest of the world is an 11 to 1 (except for 96-97's)