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 Post subject: NGK BKR7E PLUGS
PostPosted: Thu Jul 27, 2006 11:59 pm 
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i just changed to these plugs yesterday after hittting a 20 psi spike and destroying the BKR6E plugs in cylinders #2 and #3.

now that i changed to these plugs and gapped them to .025 the engine seems to "chug" at idle like a truck.

is this a product of colder plugs?


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 Post subject: Re: NGK BKR7E PLUGS
PostPosted: Fri Jul 28, 2006 12:27 am 
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Pantyeatr wrote:
i just changed to these plugs yesterday after hittting a 20 psi spike and destroying the BKR6E plugs in cylinders #2 and #3.
now that i changed to these plugs and gapped them to .025 the engine seems to "chug" at idle like a truck.
is this a product of colder plugs?


Nope. Its just bad tuning. I run BKR9 plugs and it idles just fine. Glad to see you back on neons.org posting again.

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 Post subject:
PostPosted: Fri Jul 28, 2006 2:10 am 
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thanks man, it's good to be back here with you guys.

yeah i guess it is poor tuning, yet no tuning. i'll have much more options for tuning once i get my MS in there.

it just seems different since i put them 7's in


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 Post subject:
PostPosted: Fri Jul 28, 2006 2:44 am 
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you're getting a slight misfire at idle until it warms up.

how exactly does a 20 psi spike destroy a sparkplug?

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 Post subject:
PostPosted: Fri Jul 28, 2006 6:25 am 
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I run the bkr7e's gapped at .030 and im fine..

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 Post subject:
PostPosted: Fri Jul 28, 2006 6:44 am 
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Dave99rt wrote:
how exactly does a 20 psi spike destroy a sparkplug?


Detonation. I've broke all 4 plugs with detonation once. Destroyed that engine. :?


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 Post subject:
PostPosted: Fri Jul 28, 2006 10:47 am 
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Dave99rt wrote:
you're getting a slight misfire at idle until it warms up.

how exactly does a 20 psi spike destroy a sparkplug?


exactly what Boost Junkie said. the entire electrode on the tip was gone on cylinder #3 and # 2 was loose.

i don't know why i'm getting a 20 psi spike anyway, it's more like i can hold 20 psi with the gas :?

my wastgate screw is all the way loose and my manual boost control is all the way loose. i did upgrade the spring inside from the 5-9 psi to the 9-12 psi version, but still i shouldn't be building 20 psi.

i can make pics of the old plugs if you want.


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 Post subject:
PostPosted: Fri Jul 28, 2006 12:45 pm 
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I'd be worried about the engine. When the plugs broke on my engine the ceramic banged around in the chamber which beat up the cylinder head and piston real bad. Some chunks also got lodged between the piston and cylinder wall which basically destroyed the block.


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 Post subject: Re: NGK BKR7E PLUGS
PostPosted: Thu Aug 03, 2006 5:09 pm 
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Pantyeatr wrote:
i just changed to these plugs yesterday after hitting a 20 psi spike and destroying the BKR6E plugs in cylinders #2 and #3.
is this a product of colder plugs?


you did what? ran a hot spark plug in boost, your nuts.
take the head off and inspect for damage


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 Post subject: Re: NGK BKR7E PLUGS
PostPosted: Thu Aug 03, 2006 6:27 pm 
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Location: Seattle, WA
Pantyeatr wrote:
i just changed to these plugs yesterday after hittting a 20 psi spike and destroying the BKR6E plugs in cylinders #2 and #3.

now that i changed to these plugs and gapped them to .025 the engine seems to "chug" at idle like a truck.

is this a product of colder plugs?


the two times that my car was chugging, the repair involved a rebuild... :(


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