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autolight plug heat ranges ???
#1114086
11/15/11 02:57 AM
11/15/11 02:57 AM
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Joined: Jan 2003
Posts: 1,996
s. e. pa.
calrobb2000
OP
top fuel
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OP
top fuel
Joined: Jan 2003
Posts: 1,996
s. e. pa.
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hi which plug is hotest and how far apart are the heat ranges ? ar 3932 3924 
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Re: autolight plug heat ranges ???
[Re: calrobb2000]
#1114087
11/15/11 03:08 AM
11/15/11 03:08 AM
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Joined: Nov 2003
Posts: 6,293
Rock Springs
Bob_Coomer
master
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master
Joined: Nov 2003
Posts: 6,293
Rock Springs
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Never run that cold a plug, even with 16:1.
AR 3933 is plenty of plug for average 13:1 engine... For more moderate 11:1-12:1 stuff I run the AR 3934's.
[color:"red"]65 Hemi Belvedere coming soon [/color]
[color:"#00FF00"]557" Indy engine 1.07 60ft 144mph in the 8th 2100 lbs package [/color]
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Re: autolight plug heat ranges ???
[Re: Bob_Coomer]
#1114089
11/15/11 02:19 PM
11/15/11 02:19 PM
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Joined: May 2005
Posts: 1,980
Apollo, PA.
B1MAXX
top fuel
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top fuel
Joined: May 2005
Posts: 1,980
Apollo, PA.
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Quote:
Never run that cold a plug, even with 16:1.
AR 3933 is plenty of plug for average 13:1 engine... For more moderate 11:1-12:1 stuff I run the AR 3934's.
I agree.AR3934'S here 14:1....Last digit is heat range...higher the hotter I think it goes from 1-5.
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