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max power on ngk6 plugs

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Old 28 August 2011, 02:00 PM
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RetroMk1
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Default max power on ngk6 plugs
recently upped the power on my 03 sti and was wondering how will the ngk 6's hold up? what sort of power when you need to move to 7's.

2003 sti
fmic
3 port
walbro
3" milltek
hks super
ecutek

Around 350bhp

Cheers
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Old 28 August 2011, 02:46 PM
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Midlife......
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At that spec I'd go for NGK PFR7b

Shaun
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Old 28 August 2011, 02:49 PM
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Originally Posted by Midlife......
At that spec I'd go for NGK PFR7b

Shaun
That seems to be what others have done, am i right in thinking its a cooler plug?
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Old 28 August 2011, 04:46 PM
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Yep......... It's meant to spark even at higher boost pressure

Shaun
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Old 01 September 2011, 11:38 AM
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sorry to hijack,are the PFR6B for standard fitment ?

http://www.ebay.co.uk/itm/NGK-Spark-...item19c7b62e93
Last edited by The Rig; 01 September 2011 at 11:39 AM.
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