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CenTxRT

Spark plug recommendation

I am running a 12.5:1 compression 5.7 hemi stroker built by BES.  Naturally aspirated. Running on 110 octane race fuel.

In the past I've run a Brisk ER12S spark plug.  I was wondering if you had any other recommendations for this heat range.

Thanks!

 

 

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Won a head package done by BES in 2013 by coming in 2nd at MoparFest at Beech Bend.

5.7 Hemi Stroker by BES through you guys. 414 ci.

12.5:1 compression

Naturally aspirated

Pro Systems carb

PTC converter

Put it all in a 1970 Duster.  Does this ring a bell?

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3 hours ago, funkpolice said:

  that link said $43.00 for a set of 16.  $700.00 worth is a whole lotta plugs.

(In my best Emily Litella): Oh. Well. That's completely different.  Never mind.  This would be a good deal if they could last at least half a season.

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16 hours ago, CenTxRT said:

(In my best Emily Litella): Oh. Well. That's completely different.  Never mind.  This would be a good deal if they could last at least half a season.

It's the price you pay for having 2 plugs per cylinder. Back in the day, you could go thru a set per race day. Racing ain't cheap!

Hate to say this but this reminds me of my RV customers... 150 to 200 large for an RV and then bitch about a $50 fuel filter adapter. Converted a $90 1 off fuel filter to use a $10 one you can get at any auto parts store.

 

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The Brisks are holding up fine 2 or 3 full seasons!  I pull them and all they need is a little cleaning.  The gap has barely changed on them!

I don't mind $11.00 per plug if they will last 3 years or better!

 

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what plugs are 2 colder from stock in copper?  would love to buy a set for 43 vs 180.  have some dyno tuning to do in a bit over a week or so.  big power bge heads, 411 9.75:1 twins e85 holley efi

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On 6/19/2019 at 9:38 AM, HighHorseman said:

If you're changing plugs regularly then the coppers are a great way to go:

https://www.highhorseperformance.com/NGK4306_p/4306.htm

Sorry, wrong heat range.  These appear to be for a hemi with a standard compression ratio.

the #12 heat range in Brisk would correlate to an NGK plug with a heat range of 8.  Do you have anything like that?

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