sprk plugs for hi-comp. d16z6

[robtec]

what plugs should i use with a 11.7 cr on a z6??tomorow i will buy a new set for my new motor,and i here that were running a hi-comp. motor ,you should use colder or hotter plugs,or some thing like that.

[Rexinre]

About 2 steps colder depending on how high you raised your compression!

[dragman99]

ahhh, ngk's work fine.

[robtec]

i just get a set of ngk v-power zfr5e-11,any one with this plug??

[dragman99]

i've got the stock ngk's in my 12:1 civic.

[krAzySi]

go with 1 or 2 step colder zfr6 or 7

[builthatch]

bkr6e-11 in the winter, bkr7e-11 in the summer...atleast on the east coast : )

zfr's nose is too projected

[transzex]

Champions, year round.

My only cold idle issue happens to be the 325 cc injectors and stock cold idle ECU tuning.

Let it idle for 60 seconds, or know how to drive a old carbed car in the cold.

I rebuilt my first carb in 1979, go figure.

[soccaian]

Champions, year round.

My only cold idle issue happens to be the 325 cc injectors and stock cold idle ECU tuning.

Let it idle for 60 seconds, or know how to drive a old carbed car in the cold.

I rebuilt my first carb in 1979, go figure.


hahaha.... nothin like driving a carbed car in the cold.... thats some shitty stuff!

[robtec]

hehe when i start the motor in the morning it feeels like when i drive my 81 corolla!!

[ahedau]

I need new plugs and saw your post... While shopping for plugs I found the following excerpt:

Spark Plug Tech Tips – as taken from NGK’s technical site

Let's make this really simple: when you need your engine to run a little cooler, run a colder plug (higher number). When you need your engine to run a little hotter, run a hotter spark plug (lower number). However, NGK strongly cautions people that going to a hotter spark plug can sometimes mask a serious symptom of another problem that can lead to engine damage. Be very careful with heat ranges. Seek professional guidance if you are unsure.
With modified engines (those engines that have increased their compression) more heat is a by-product of the added power that normally comes with increased compression. In short, select one heat range colder for every 75-100 hp you add, or when you significantly raise compression. Also remember to retard the timing a little and to increase fuel enrichment and octane. These tips are critical when adding forced induction (turbos, superchargers or nitrous kits), and failure to address ALL of these areas will virtually guarantee engine damage.

Hope that helps