ok what does the reading mean on the plugs... some say -7 or -8 and how do i know which ones are suited for my engine?????

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Midori Green &raquo;</TD></TR><TR><TD CLASS="quote">how do i know which ones are suited for my engine????? </TD></TR></TABLE>

are we suppose to guess what engine you have?

 

i was asking in general but i have an n/a b20v setup

 

temperature? timing? just throwing out guesses.

bump for a def answer.

 

Which number do you mean?

Example: ZFR5J-11

Do you mean the "-11"?

 

End numbers -7.-8,-9, etc are wide gaps. For NGKs that is.




Modified by Neebs at 10:33 PM 4/28/2008

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Neebs &raquo;</TD></TR><TR><TD CLASS="quote">NGK! Believe the end number means the wide gap.</TD></TR></TABLE>
Right.

-11 mean a 1.1mm gap (~0.044")

 

Not sure if NGK comes in a -7 gap.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Neebs &raquo;</TD></TR><TR><TD CLASS="quote">Not sure if NGK comes in a -7 gap.</TD></TR></TABLE>
I don't think they do.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ddd4114 &raquo;</TD></TR><TR><TD CLASS="quote">Which number do you mean?

Example: ZFR5J-11

Do you mean the "-11"?</TD></TR></TABLE>

yes that number for NGK and that is not the gap... it is the temperature

 

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

yes that number for NGK and that is not the gap... it is the temperature</TD></TR></TABLE>

ZFR5J-11 - 5 is the heat rating temperature from hot to cold. The -11 is the wide gap.

 

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

ZFR5J-11 - 5 is the heat rating temperature from hot to cold. The -11 is the wide gap.</TD></TR></TABLE>

oh i see and how do i know what temperature plug to run with my motor?

 

You can look up the recommended plug for your engine on NGK's site. If you need something colder, add 1 to the heat range.

 

ngk bkr7e-11

7e being the heat range, the lower the number, the cooler. 7's is the ideal heat range for your motor

11 being the gap but always check it.

its amazing how many people give advise but dont know what they're talking about.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hoo my gosh &raquo;</TD></TR><TR><TD CLASS="quote">7e being the heat range, the lower the number, the cooler. 7's is the ideal heat range for your motor</TD></TR></TABLE>
The HIGHER the number, the colder.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hoo my gosh &raquo;</TD></TR><TR><TD CLASS="quote">its amazing how many people give advise but dont know what they're talking about.</TD></TR></TABLE>

 

yea i always mess that up but it doesn't matter if all you really need are 7's.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hoo my gosh &raquo;</TD></TR><TR><TD CLASS="quote">yea i always mess that up but it doesn't matter if all you really need are 7's.</TD></TR></TABLE>
How do you know he needs 7's?