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wha kinda spark plugs should i use for b20 vetc compression 12.1

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Old 11-22-2003, 07:53 AM
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Default wha kinda spark plugs should i use for b20 vetc compression 12.1

as the topic says what kinda spark plugs should i use for b20 vetc high with high compression pistons
Old 11-22-2003, 07:55 AM
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Default Re: wha kinda spark plugs should i use for b20 vetc compression 12.1 (jdm_gsr)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jdm_gsr &raquo;</TD></TR><TR><TD CLASS="quote">as the topic says what kinda spark plugs should i use for b20 vetc high with high compression pistons
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Bosch #4227 works for me.....only $1.50 each...
Old 11-22-2003, 07:56 AM
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are those the platnum 1
Old 11-22-2003, 08:04 AM
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ef-1 autolites are the way to go man
Old 11-22-2003, 09:47 AM
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Denso Iridium, I am a walking testament to these plugs and refuse to use anything else unless I'm using it for evaluation purposes.
Old 11-22-2003, 10:18 AM
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the problem is my car was runnin good until it blew one of the spark plugs and now its detnating and i tryed changing a new coil pack just to see what diffrent it would made but its still the same
Old 11-22-2003, 01:23 PM
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Default Re: (jdm_gsr)

what heat range plugs are u using?

Old 11-23-2003, 06:56 PM
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just factory spark plug wires and platnum 4 bosch
Old 11-23-2003, 07:02 PM
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Default Re: (jdm_gsr)

switch to ngk bkr7's
Old 11-23-2003, 08:13 PM
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<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by irev210 &raquo;</TD></TR><TR><TD CLASS="quote">switch to ngk bkr7's
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Only prob... most places don't carry the 7's (not even Autobacs and they have rows & rows of spark plugs on display).... usually nothing higher than the 6's (where bkr5 is the "norm"). But a customer of our who we built a 12.5:1 comp LS/VTEC has been using the bkr6 plugs for 6 months now, from the hot summer to the cold fall nights now w/out any problems.
Old 11-23-2003, 08:58 PM
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i built a 12.3:1 compression motor for a customer and he kept bitching about a misfire.... Changed the plugs to 7e's and problem was gone. Also he is a dumbass and he was running lean as **** for awhile so that didnt help...

These high compression motors are untamed beasts, every one is different and respondes different
Old 11-24-2003, 11:38 AM
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i dont know because it was running fine until it hit 1600 miles then it started to back fire around 5 thousdand rpm and soemtime it dont
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