Dual Purpose Plug?

sen2two

I've been lubing and pulling it all morning

5 Year Member

Jul 18, 2013

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Dec 23, 2013

#1

• Dec 23, 2013

• #1

Quick breakdown of my set up. Stock heads and bottom with e303 cam. stock intake and maf but Explorer tubular intake manifold with 65mm bbk throttle body. Full 2.5" exhaust.

I am setting up a 150 wet shot for occasional use. This is my daily driver. I want to put a set of plugs that will work for both NA daily driving and nitrous use. I do have an MSD 6BTM to retard timing when I will be spraying.

Any recommendations on a plug and gap?

With some searching I have found that the NGK Br7ef plug with .025 gap Or autolite 24 with a .045 gap are recommended. But no one mentions driving with these on the regular.

 

mikestang63

SN Certified Technician

Aug 27, 2012

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Dec 23, 2013

#2

• Dec 23, 2013

• #2

If memory serves me the asf42c's are stock, which are autolite 25's. So I would say go with the 24's or asf32c's and go from there. Check your plugs and if they are not loading up at idle you're fine. You want to err on the side of running a colder plug so don't be afraid to go -2 if needed.

 

madspeed

Colonel Mustard

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Nov 29, 1999

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Dec 26, 2013

#3

• Dec 26, 2013

• #3

i used to run Autolite 23's back when i ran a 150-200 wet shot

 

sen2two

I've been lubing and pulling it all morning

5 Year Member

Jul 18, 2013

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Dec 26, 2013

#4

• Dec 26, 2013

• #4

You ran the 23's daily driving as well?

 

madspeed

Colonel Mustard

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Nov 29, 1999

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a van down by the river

Dec 26, 2013

#5

• Dec 26, 2013

• #5

yes, for about two years

 

srtthis

the guy doing it does every local racers rear end

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Jul 3, 2009

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Dec 27, 2013

#6

• Dec 27, 2013

• #6

im running NGK's 1 heat range cooler on my car. if i up it to a 200 shot i'll go another heat range colder

 

sen2two

I've been lubing and pulling it all morning

5 Year Member

Jul 18, 2013

396

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59

Dec 28, 2013

#7

• Dec 28, 2013

• #7

I went with the 24s. Since they are colder plugs, can I safely run more timing when not using the nitrous? I can't really hear any detonation over my engine to tell if I have taken it to far. And I do not have a wideband or anything else to check it.