here is a loaded question... What spark plugs should i use???

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here is a loaded question... What spark plugs should i use???

Post  racinghabbit on March 21st 2012, 12:16 pm

mud race engine.. 545, iron headed, c9ve. fully ported , full roller , msd ignition. 14.1 :1 compression.. dual plane intake with 1050 dominator...

just wondering what you would suggest for spark plugs..
thanks
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Re: here is a loaded question... What spark plugs should i use???

Post  Barney on March 21st 2012, 12:24 pm

AUTOLITE 45 or 124
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Re: here is a loaded question... What spark plugs should i use???

Post  Lem Evans on March 21st 2012, 12:39 pm

Autolite AR33 should work well.

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Re: here is a loaded question... What spark plugs should i use???

Post  Barney on March 21st 2012, 3:14 pm

I've used all 3 the AR33 is perfectly good too. The 45 and 124 are 1/2 the cost and I've found last a little longer. Just my experience, not disagreeing.
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Re: here is a loaded question... What spark plugs should i use???

Post  yellowhorse7 on March 21st 2012, 6:17 pm

Barney wrote:I've used all 3 the AR33 is perfectly good too. The 45 and 124 are 1/2 the cost and I've found last a little longer. Just my experience, not disagreeing.


Buy the adapters and run a AR3932
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Re: here is a loaded question... What spark plugs should i use???

Post  Lem Evans on March 21st 2012, 7:31 pm

The adapters like Garrett machine offers are an option, but are not needed unless one needs a plug colder than the AR32. Unless Racinghabbit gets rid of the dual plane intake manifold and puts the hose to it i'd doubt his engine wants an AR3932 sparkplug.

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Re: here is a loaded question... What spark plugs should i use???

Post  cool40 on March 21st 2012, 10:15 pm

he could put some m5 in it and go with ngk9's! Razz
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Re: here is a loaded question... What spark plugs should i use???

Post  kjett on March 22nd 2012, 7:54 am

For some reason, it's difficult to find the AR33's around me, so I went with the Garret machine adapters and run the NGK's. Not that they are any better, just easier for me to get local. I like the NGK BR9es on the frosty jug Twisted Evil
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Re: here is a loaded question... What spark plugs should i use???

Post  yellowhorse7 on March 22nd 2012, 9:01 am

Lem Evans wrote:The adapters like Garrett machine offers are an option, but are not needed unless one needs a plug colder than the AR32. Unless Racinghabbit gets rid of the dual plane intake manifold and puts the hose to it i'd doubt his engine wants an AR3932 sparkplug.

Good point. I assumed that he was spraying it
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Re: here is a loaded question... What spark plugs should i use???

Post  k.pascoe on March 22nd 2012, 10:32 am

Motorcraft BTF-1 Best racing 18mm plug.

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Re: here is a loaded question... What spark plugs should i use???

Post  racinghabbit on March 22nd 2012, 11:31 am

not spraying it... ar33 are made by who?
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Re: here is a loaded question... What spark plugs should i use???

Post  racinghabbit on March 22nd 2012, 11:31 am

never mind its an autolite racing plug
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Re: here is a loaded question... What spark plugs should i use???

Post  racinghabbit on March 22nd 2012, 11:41 am

what kind of plug gap do you guys run??
thanks
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Re: here is a loaded question... What spark plugs should i use???

Post  racinghabbit on March 27th 2012, 12:12 pm

Gap?
I have ar33 .. got them from carquest .. got me 16 overnite!!
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Re: here is a loaded question... What spark plugs should i use???

Post  lghting94 on March 27th 2012, 12:45 pm

I would guess between .030 and .035
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Re: here is a loaded question... What spark plugs should i use???

Post  yellowhorse7 on March 27th 2012, 1:31 pm

Biggest gap you can without putting out the spark. With your deal I'd start at .040
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Re: here is a loaded question... What spark plugs should i use???

Post  crittersf1 on March 28th 2012, 10:15 pm

I run NGK's at .044
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Re: here is a loaded question... What spark plugs should i use???

Post  racinghabbit on June 1st 2012, 2:45 pm

I called autolite and talked to there racing tech. He told me Not to gap ar32 or ar33 spark plugs. and he also told me to run ar32 's with my engine build..
Just passing it on .

ar33 factory gap is .030



p.s. i did gap a set of ar33 to .040 and i am having problems with them fouling out.. Just an fyi...
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