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Advice needed on Sparkplugs

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Old 04-30-2009, 01:49 PM
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hockeydude
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Default Advice needed on Sparkplugs

Im updating all of my turbo's ignition components, but don't wknow which plugs are the "best" for my turbo, and my new wires...

W7DC Stock Heat Range non-resistor 944T.
WR7DC Stock Heat Range resistor 944T.
W5DC One Colder Heat Range non-resistor 944T.
WR5DC One Colder Heat Range resistor 944T.
W9DC Stock Heat Range non-resistor 944NA.
WR9DC Stock Heat Range resistor 944NA.

wires are Lindsey's Magwire 1200* with the non-resister beru connectors....whatever that means! haha

Keep in mind that this is for a street (secondary) car, running 16PSI with MAX chips. (so they tend to be a little rich)

Any insight will be greatfully appreciated!
Old 04-30-2009, 01:55 PM
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CurtP
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My favorite plugs are NGK BPR6EY. I'd stay at the stock heat range as long as your plugs read normal.
Old 04-30-2009, 02:00 PM
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jasonlp
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Originally Posted by CurtP
My favorite plugs are NGK BPR6EY. I'd stay at the stock heat range as long as your plugs read normal.
+1 NGK
Old 04-30-2009, 03:22 PM
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rlm328
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+2 NGK
Old 04-30-2009, 03:34 PM
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Rogue_Ant
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NGK is the way to go.

For your boost level, I would use either the BR6ES, or BPR7ES. The 7's being a little colder, and the former being a non-projected tip plug (kinda half-step between the regular BPR6ES and BPR7ES).


-Rogue
Old 04-30-2009, 03:40 PM
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hockeydude
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hmmm... sounds like NGK is the way to go, then! haha.

what's the benefits of a colder plug or a non-projected tip plug?

i need to go do some research...
Old 04-30-2009, 04:35 PM
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Originally Posted by hockeydude
what's the benefits of a colder plug or a non-projected tip plug?
Simply put, a colder plug is less likely to knock.


-Rogue
Old 04-30-2009, 05:38 PM
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chris951
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NGK BPR7ES good quality
Old 04-30-2009, 05:39 PM
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jasonlp
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Originally Posted by chris951
NGK BPR7ES good quality
BR8ES as well
Old 04-30-2009, 05:51 PM
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Rogue_Ant
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Originally Posted by jasonlp
BR8ES as well
Yep, I prefer the non projected-tip plugs as well.


-Rogue
Old 04-30-2009, 05:59 PM
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TurboTommy
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Originally Posted by Rogue_Ant
Simply put, a colder plug is less likely to knock.


-Rogue
Yes, but also greater chance of insufficient spark at high engine loads.
Old 04-30-2009, 06:07 PM
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Rogue_Ant
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Originally Posted by TurboTommy
Yes, but also greater chance of insufficient spark at high engine loads.
I honestly doubt it. At higher loads even a 2-step colder plug will have plenty of heat, IMO.

And I will take spark-blowout over knock any day. Easy fix for spark-blowout is to simply run a tighter gap, or an aftermarket CDI (I have an MSD 6AL-2).


-Rogue
Old 05-01-2009, 02:30 AM
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hockeydude
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UGH!!! too many choices! haha
Old 05-01-2009, 09:07 AM
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eclou
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NGK BPR7ES gap it to 0.026
Old 05-01-2009, 11:24 AM
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blown 944
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Originally Posted by eclou
NGK BPR7ES gap it to 0.026
+1


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