I would like some info on running a hot or cold spark plug for and all motor fairly high compression.

 

Try an NGK BKR6 or BKR7 (the 7 is one range colder than 6). I believe those are the model numbers (off the top of my head).

 

I use the 6 range on stock compression engines, and 7 range on about 11:1 and up.

 

I think NGK for GSR are :

BKR6E-11

but you can use:

BKR7E-11

for Colder.

Can anyone confirm this?

 

correct.

 

what about 12:1? 2 step?

 

are platnim plugs a must with a dohc vtec motor ?

 

Rocket plugs

 

so what the benifit of using BKR7E-11 (cooler plug).....

I've got 11.4 to 1 compression and I'm currently using the BKR6E-11 with the timing retarded to stop pinging....

If the go with the 7's will I be able to advance the timing a bit....

 

id like more info too. i havent researched spark plugs at all. when would you need a colder plug? why? what are advantages of colder plugs? when to increase or decrease the gap? any info is great. as my engine is finally nearing completion. 12.5:CR, slightly milled head, JUN 3's. any suggestions

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by blk_db2 &raquo;</TD></TR><TR><TD CLASS="quote">so what the benifit of using BKR7E-11 (cooler plug).....

I've got 11.4 to 1 compression and I'm currently using the BKR6E-11 with the timing retarded to stop pinging....

If the go with the 7's will I be able to advance the timing a bit....</TD></TR></TABLE>

Possibly. Spark will be made further from the pistons because the colder plugs have an electrode that sits up higher than the warmer equivalent.

 

ok I figured it out.... see below....

http://www.prostreetonline.com...id=19

 

bump

 

does anyone know the torque spec for spark plug??
thanks.

 

1/2 turn after it touches the seat

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jmk2888 &raquo;</TD></TR><TR><TD CLASS="quote">I think NGK for GSR are :

BKR6E-11

but you can use:

BKR7E-11

for Colder.

Can anyone confirm this?
</TD></TR></TABLE>

But then there are BKR6ES-11 where the S for Standard, and w/o the S it't the V-power. I read that V-power are better for Turbo, but had anyone found the v-power better than standard for NA vtec engines?

here is a link

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by atmo_monster &raquo;</TD></TR><TR><TD CLASS="quote">does anyone know the torque spec for spark plug??
thanks.</TD></TR></TABLE>

13ft-lb