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Autolite 104's for a nitrous outlet 150 shot?

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Old 02-28-2009, 10:06 PM
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Default Autolite 104's for a nitrous outlet 150 shot?

I currently have Autolite 104's gapped @ .035 in my car now, seemed to work good with the dry 100 shot. But now Im stepping up to a nitrous outlet plate kit and spraying a 150 shot. are these plugs safe?
Old 03-01-2009, 04:43 PM
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I havent heard much of anyone using autolites, I use the NGK TR-6's because that is what just about everyone else uses. I like the cheap insurance of knowing that what im using, everybody else does too and has great results.
Old 03-01-2009, 04:48 PM
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I seem to remember reading the TR-6's have changed and you need to make sure you have the right ones? Can somebody else chime in?
Old 03-01-2009, 06:04 PM
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With my 150 shot I use one step colder Autolite Racing plugs AR103s. They work great!
Old 03-01-2009, 07:21 PM
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The 103's dont foul out?
Old 03-02-2009, 08:02 AM
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Originally Posted by jeepers_88
I havent heard much of anyone using autolites, I use the NGK TR-6's because that is what just about everyone else uses. I like the cheap insurance of knowing that what im using, everybody else does too and has great results.
If you look on autolite's site NGK TR6's are the autolite 103 equivalent. I don't know about your area but tr6's are kinda hard to find around here, but you can find autolite 103 or 104 at Wal-Mart. Plus the NGK's cost more.

Last edited by 87silverbullet; 03-02-2009 at 08:08 AM.
Old 03-02-2009, 08:10 AM
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Autolite 103 for 150 shot and under. AR94 for 150-225.

I've had the same set of AR94 in my car since the begining of last season. I only spray it at the track and haven't fouled a plug yet.
Old 03-02-2009, 08:43 AM
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Sound like I have been on thin ice with my 104's and 100 shot!
Old 03-02-2009, 04:01 PM
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Originally Posted by pyro719
Sound like I have been on thin ice with my 104's and 100 shot!
I'd say you're at the limit of a stock heat range on a 100 shot.
Old 03-02-2009, 05:17 PM
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back when i had my GTP a lot of people in that community ran autolites without issues...
Old 03-02-2009, 08:33 PM
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^^^ Thats what I used in my GN days. I used an Autolite 104 for street boost up to 16 lbs then I used 103's for racing at the track 25 lbs on race fuel
Old 03-03-2009, 12:14 AM
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I got some tr6's but they say v power and have a v groove in the electrode. Are these the plugs I need?
Old 03-04-2009, 11:33 PM
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Autolite makes a good plug. Just make sure the plug you are using is 2 points colder. You are going to enjoy the difference in performance between the two diffrent set ups. Have fun.
Dave



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