Plugs to use on e85? tuning on sunday

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08-15-14, 12:57 PM

#26

04G35S

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Are you guys running the autolite 3932x for all four plugs?

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08-19-14, 08:37 AM

#27

Wildman923

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Quote:

Originally Posted by Shainiac

Does anyone know the AR3932X equivalent in an 8 and 9 head code?

Also Curious what the part number would be in a 9 heat range if anyone has that info available.

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08-19-14, 10:06 AM

#28

Howard Coleman

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AR3934X is 8
AR3933X is 9
AR3932X is 10
AR3931X is 11

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08-20-14, 09:09 AM

#29

Wildman923

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Quote:

Originally Posted by howard coleman

AR3934X is 8
AR3933X is 9
AR3932X is 10
AR3931X is 11

Great info! Almost half the cost of the stock NGK's

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08-27-14, 11:35 AM

#30

Shainiac

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Quote:

Originally Posted by howard coleman

AR3934X is 8
AR3933X is 9
AR3932X is 10
AR3931X is 11

I noticed that these are non-resistor plugs. Are they still okay to run with stock leading and trailing coils (FC) and not COP?

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08-27-14, 09:53 PM

#31

rx72c

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I would still use the R7420-105 in a heart beat.
Nothing else goes in any of the engines we do.

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