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Author Topic:   sparkplugs
modbob35
Dirt Roller

Total posts: 9
posted February 22, 2001 09:22 PM
Using a new Davis Unified Ignition, they recommended plugs gapped at .050-.055". Wondering what sparkplugs others would recommend, using alcohol. Also opion on Autolite AR51 plugs Thanks

MOD RACER#93
Dirt Freak

Total posts: 251
posted February 22, 2001 10:15 PM
I use Autolite 303 plugs (for alcohol), however they are the BIG plug. Also I never run more than a .030 plug gap. With any kind of ignition. Hope this helps.

jklostermann
Dirt Full Roller

Total posts: 45
posted February 25, 2001 11:22 PM
I run a NGK not sure of the number off the top of my head, they are a good plug. AS for the gap I will have to agree with mod93 you don't normally run more then 30-35 thousands of gap.

Pickel
Dirt Freak

Total posts: 239
posted February 27, 2001 08:53 PM UIN: 25419780
I have use NGK,ACCEL,SPLITFIRES,AC Delco rapid fire even the bosh platnums...They all seem to work good.. I like the Autolites the the best.The autolites never let me down..I run a 28 gap on my sparkplugs.

[This message has been edited by Pickel (edited February 27, 2001).]

[This message has been edited by Pickel (edited February 28, 2001).]

widebody
Dirt Full Roller

Total posts: 74
posted February 28, 2001 02:11 PM
Nothing but Autolites 133, 135

WPP
Dirt Full Roller

Total posts: 46
posted February 28, 2001 06:07 PM
I also run autolite 51 with alky and msd with 30 on the plugs but how do you know what right with alky

dirtracer14
Dirt Maniac

Total posts: 128
posted February 28, 2001 06:43 PM UIN: 23443678
I run AC plugs R44T with allky and 45 gap. With msd or hei i always run the 45 gap is that bad?

MOD RACER#93
Dirt Freak

Total posts: 251
posted February 28, 2001 07:24 PM
Nothin but autolite here....have run the a/c plugs u are describing there good, i liked em....I am not that good at explaining, someone explained it too me...but just change your plug gap to 30 or less. You might not feel it..but it works better. I think with methonal u dont want the plug tip sticking out into the cylinder area...it's just too hot a plug for methonal...Am i right?? Some one else would problly know for sure...

dirtracer14
Dirt Maniac

Total posts: 128
posted February 28, 2001 08:56 PM UIN: 23443678
I have only ran allky for 2 years. When i got my carb they told me to use that plug. The gap i just assumed that 45 was fine, will the fact that im at sea level make a diff? We have tried the autolite befor with gas motors and had better luck with accell plugs.When i pull my A/C plugs they allways look great, to me anyway? Would like to find out about the gap a little more.

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