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Old 07-13-2020, 10:48 AM   #1
KevinHoward8509
 
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Spark plug recommendation

Looking for a plug recommendation.

See mod's below i am also now tuned on E85 as well.
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Old 07-13-2020, 12:26 PM   #2
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NGK BR7EF gapped 0.028-0.030"
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Old 07-13-2020, 01:28 PM   #3
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Ac delco zr1/lsa/ls7 plugs part number 41-104
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Old 07-13-2020, 02:52 PM   #4
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Quote:
Originally Posted by dreksnot View Post
NGK BR7EF gapped 0.028-0.030"
This
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Old 07-13-2020, 07:54 PM   #5
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Quote:
Originally Posted by dreksnot View Post
NGK BR7EF gapped 0.028-0.030"
Im running these as well, but with the OP’s setup a tr6 would be fine.
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Old 07-13-2020, 08:47 PM   #6
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Quote:
Originally Posted by eLeSthree View Post
Im running these as well, but with the OP’s setup a tr6 would be fine.

Was my thoughts as well for ps-1 blower at his power level,
tr6/ 41-104 /tr6ix all great choices
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Old 07-14-2020, 08:17 AM   #7
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On e85, you run more aggressive ignition timing, the colder plug will help.
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Old 07-16-2020, 07:45 AM   #8
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Its recommended to go 1 stage colder for forced induction (at reasonable boost) and another stage colder after that for e85 (to prevent preignition from heat)
So you're looking at a heat range 7 plug.. non projected tip.. br7ef is what you want.
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Old 07-16-2020, 06:24 PM   #9
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I use TR6.
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