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Re: NGK Plugs ?
#944333
03/06/11 09:34 PM
03/06/11 09:34 PM
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Joined: Dec 2008
Posts: 1,200
UK
602heavy
pro stock
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pro stock
Joined: Dec 2008
Posts: 1,200
UK
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Quote:
Quote:
Stay away from the projected style plug , NGK-6 will be fine on the street & track , will be difficult to read if any colder.
The lower the number the hotter the plug 10 being the coldest 6 being the hottest.
-5 being the hottest , to cold a plug will load up , used -6 with no problem on an 11.5:1 street motor , 7s are ok but a tad cold when 'cruising' around , the projected type plug will get too hot due to the ground strap being deep into the combustion chamber , ok for a stock type motor running low compression , the projected type plug will glow like an ember when running high compression street motors.
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