For those that asked for this:

 

saving info...

 

yea that chart rocks... i saved it some time ago from a past thread. Def. one of the reference items you want to keep handy

 

notepad!

 

neato
Do the race plugs use a different labeling system? I don't think my R5672A-8's fit into that scheme

 

I think that's the fun of that chart..trying to figure how your plug fits in. I don't have a clue on yours
Where do you buy your race plugs at? They can be hard to find.

 

question, since we talkin about plugs, what does the gap do? hows having a larger gap affect stuff? smaller gap? whats stock? yadda yadda

 

http://www.ngksparkplugs.com/techinfo/spark_plugs/


[Modified by maztur, 2:01 AM 2/28/2003]

 

clubplug.net has them for pretty cheap, free shipping too.

 

these plug chart is for the daily driven NGK plugs correct Earl..

They dont state anything regarding plugs like Racing sereis r5671-a number 8-10

 

I found the chart in the front of an inch thick NGK catalog but it does not seem to fit with the racing plugs (except for the gap sizing 8-10). Not sure on this.

 

yeah 8 -10 is the heat ranges 7-8 for medium builds and 9 - 10 is what we usually use. I think tony as well uses these they hooked me on this plug works great in our turbo race motors. last for qualifying then new set in eliminations

 

What is the exact plug number you are using?

 

Marking for future reference Thanks Earl


[Modified by B18Flip, 11:09 AM 2/28/2003]

 

r5671-a Number 9

 

NGK V-Power Racing Spark Plugs are available in both projected and non-projected nose configurations.

THREAD SIZE
(HEX SIZE) Part No. Heat Range Firing End
14mm x 3/8"
(13/16") R5670 5,6,7,8,9 Projected
14mm x _"
(5/8") R5671A
R5671A
14mm x .460"
(5/8") Taper Seat R5673
R5674 R5671A
R5671A 7,8,9,10,11
8,9,10 Standard
Projected
14mm x .460"
(5/8") Taper Seat R5673
R5674 6,7,8,9,10
6,7,8,9,10 Standard
Projected
14mm x .708"
(5/8") Taper Seat R5724 8,9,10 Projected

 

Thanks V.
BTW, that's a cheap price for that JG manifold in your signature

 

i bought it for my car never used it.. need ot sell it