spark plugs for 400-500 hp

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Jul 25, 2007 | 12:41 PM

powerdbygarrett

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From: philly

spark plugs for 400-500 hp

what spark plugs are u guys using for 400-500hp cars. how much colder should they be. they are going in an h22. if someone could give me a part number for the proper nkg plugs that would be great. thanks!

Jul 25, 2007 | 12:45 PM

RTW DC2R

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From: Hollywood Babylon

2 posts down... https://honda-tech.com/zerothread/2051678

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Jul 25, 2007 | 01:55 PM

powerdbygarrett

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From: philly

im not trying to read through that entire thread if u can just give me a strait and simple answer that would be great thanks

Jul 25, 2007 | 03:56 PM

turbod da

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Re: (powerdbygarrett)

i use ngk #9 600hp+ here with no problems..gap them at .028

Jul 25, 2007 | 06:36 PM

0morgan@synapse motorsport

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From: upstate, ny

Re: (92gs)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 92gs »</TD></TR><TR><TD CLASS="quote">i use ngk #9 600hp+ here with no problems..gap them at .028</TD></TR></TABLE>

those will foul out fast on his setup you shoudl just use a 7 if spark is blowing out switch to an 8

Jul 25, 2007 | 06:53 PM

93hatched_projekt

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From: Bitburg Germany

Re: (mike@synapse motorsport)

The plugs your looking for are stock # 3330 ( bcpr7es) . I'm making 450 whp on my h22 daily

Jul 25, 2007 | 07:38 PM

powerdbygarrett

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From: philly

thanks

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Jul 26, 2007 | 03:21 PM

dpetro1

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From: Tracys Landing, MD

Re: (powerdbygarrett)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by powerdbygarrett »</TD></TR><TR><TD CLASS="quote">im not trying to read through that entire thread if u can just give me a strait and simple answer that would be great thanks</TD></TR></TABLE>

stop being lazy

anyways, good old copper bkr7e is the plug you want. ngk stock number 6097. the bcp will work as well. might want to go to 8's after 500whp.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mike@synapse motorsport »</TD></TR><TR><TD CLASS="quote">

just use a 7 if spark is blowing out switch to an 8</TD></TR></TABLE>

i dont think heat range will really affect spark blow out. reducing the gap will fix that. heat range has to do with keeping the tip at the correct temp to avoid fouling and pre-ignition.