Speak plug recommendation for alky

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Speak plug recommendation for alky

Post  PanaVet on January 3rd 2013, 1:56 pm

Happy New Year!
I just finished converting my car to methanol. Set up is:
514ci, 12.5 compression, PI heads, QF950A, rear mount fuel cell w/ Magnafuel Prostar pump, -10 to MF regulator, -8 to fuel log, -8 to carb. Vacuum pump.

What would be a recommended plug, prefer NGK?

Thanks
Brian Cagle
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Re: Speak plug recommendation for alky

Post  richter69 on January 3rd 2013, 2:24 pm

alky does not need a specific plug, run the same as if it was gas.

watch the seals on that mf pump w alky, been there done that
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Re: Speak plug recommendation for alky

Post  cool40 on January 3rd 2013, 2:44 pm

I like ngk-8 or 9.
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Re: Speak plug recommendation for alky

Post  AlkyPinto on January 14th 2013, 7:20 pm

Autolite Racing 3910

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Re: Speak plug recommendation for alky

Post  Lem Evans on January 14th 2013, 8:31 pm

AlkyPinto wrote:Autolite Racing 3910


It'd depend on the dome...with the projected tip of the 3910.......it is the correct heat range for sure Smile

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Re: Speak plug recommendation for alky

Post  AlkyPinto on January 15th 2013, 10:55 am

I do have to index the 3910 plugs in my 14:1 motor.
So as Lem stated be sure to check that! Might be
okay tho with just 12:1???
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