too cold of a plug?
#1
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too cold of a plug?
I would like some advise on what heat range plugs to use. After searching, this is what I came up with. NGK R5671-9 is good for 500-600whp. NGK R5671-8 is good for around 300whp.
I am making around 410whp on low boost and I want to be safe and run the NGK R5671-9 because I run pump gas on low boost (15psi on t3/t67). From what Ive researched, I found that the colder a plug is, it dissapates more heat.
So my question is : Is there any advantage/disadvantage from running the NGK R5671-9 rather than the NGK R5671-8 with 410whp on pump gas?
I am making around 410whp on low boost and I want to be safe and run the NGK R5671-9 because I run pump gas on low boost (15psi on t3/t67). From what Ive researched, I found that the colder a plug is, it dissapates more heat.
So my question is : Is there any advantage/disadvantage from running the NGK R5671-9 rather than the NGK R5671-8 with 410whp on pump gas?
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Re: too cold of a plug? (jep)
The heat range of the plug is in reference to the plug only. It has little or no effect on water,oil or chamber temperature.If you can run the -9 with out fouling them out then use them.I run two steps colder in my ls turbo dd year round with no problems.
#3
Re: too cold of a plug? (jep)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jep »</TD></TR><TR><TD CLASS="quote">NGK R5671-9 is good for 500-600whp. NGK R5671-8 is good for around 300whp. </TD></TR></TABLE>
This might also vary in different setups. As for me, I'm using the 7 heat range (BKR7E) and the marking on the ground strap is right where it needs to be....and it's on 372whp. I could probably takethis plug to the 400's or so.
This might also vary in different setups. As for me, I'm using the 7 heat range (BKR7E) and the marking on the ground strap is right where it needs to be....and it's on 372whp. I could probably takethis plug to the 400's or so.
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Re: too cold of a plug? (NJIN BUILDR)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by NJIN BUILDR »</TD></TR><TR><TD CLASS="quote">The heat range of the plug is in reference to the plug only. It has little or no effect on water,oil or chamber temperature.If you can run the -9 with out fouling them out then use them.I run two steps colder in my ls turbo dd year round with no problems.</TD></TR></TABLE>
how much whp are u making?
so the R5671A-8 shouldnt be too hot for 410whp 9.0:1 compression ratio? thanks for the advise all.
how much whp are u making?
so the R5671A-8 shouldnt be too hot for 410whp 9.0:1 compression ratio? thanks for the advise all.
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Re: too cold of a plug? (jep)
every motor is goin to be different some like colder plugs some dont just read the ground straps after a nice pull and that will tell you what you need
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