spark plugs
Sep 18, 2010, 04:47 PM
#3
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I'd say go with a BR7ES. The BR has a recessed tip, whereas the BPR has a protruding tip. The BR7ES is one step colder(or half a heat range) than the BPR7ES. This is a great plug.
Or you can go with a BPR8ES as suggested above by 4RETECH. The BPR8ES is one full heatrange colder than the BPR7ES which you were running up until now.
........HOTTEST>>BPR7ES>BR7ES>BPR8ES>BR8ES>>COLDEST........
Or you can go with a BPR8ES as suggested above by 4RETECH. The BPR8ES is one full heatrange colder than the BPR7ES which you were running up until now.
........HOTTEST>>BPR7ES>BR7ES>BPR8ES>BR8ES>>COLDEST........
Sep 18, 2010, 11:40 PM
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If you want an NGK copper core plug and are running 20-25#, then you'll probably want to go with a BR7ES, or the BPR8ES. The BPR6EFS is used in Marine applications. AFAIK, no one on here is running this plug in an Evo. It is good for a Mercury outboard engine however. 
Last edited by sparky; Sep 18, 2010 at 11:44 PM.
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