plugs for alcohol

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plugs for alcohol

Post  514Fox87 on February 3rd 2014, 7:33 pm

Looks like I'm going to be an alcoholic this year.  LOL  Going to have the carb. changed to alcohol and I need to know what to do with spark plugs.  I would think I need to go hotter but if so how much?  Currently running AR3934. Also would the timing need to be changed?
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Re: plugs for alcohol

Post  Lem Evans on February 3rd 2014, 8:35 pm

514Fox87 wrote:Looks like I'm going to be an alcoholic this year.  LOL  Going to have the carb. changed to alcohol and I need to know what to do with spark plugs.  I would think I need to go hotter but if so how much?  Currently running AR3934.  Also would the timing need to be changed?

I suspect that the plugs you have should do a good job. Just let the e.t. slip tell you what the timing needs to be.

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Re: plugs for alcohol

Post  514Fox87 on February 3rd 2014, 9:01 pm

Thanks Lem. As soon as I know what bearings I need I will call with an order.
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Re: plugs for alcohol

Post  cool40 on February 3rd 2014, 9:18 pm

I run ngk 8 or9.my experiences with timing have been less went faster.you'll just have to see what it takes. My 526 ran best @26*.the 605 likes a bit more.
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Re: plugs for alcohol

Post  69bluehotrod on February 3rd 2014, 9:50 pm

what heads do you have?
ignition system?
compression?
I found that when I closed the gap form 35 to 20 it seemed to do better but I have the msd7531 with the HVC coil & 16v system.
the plugs you have should be fine though .
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Re: plugs for alcohol

Post  514Fox87 on February 3rd 2014, 9:58 pm

Ported A429 heads by Uncle Charlie, 14/1 compression, 7al3 ignition.
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Re: plugs for alcohol

Post  69bluehotrod on February 3rd 2014, 10:13 pm

well the ignition is plenty hot enough to go a step or two colder but The ones you are using now will be ok.
what do you gap them @ now?
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Re: plugs for alcohol

Post  514Fox87 on February 4th 2014, 7:19 am

I gap them at .035 now but I will play with it.
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