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Re: NGK Plugs ?
[Re: joedust451]
#944320
03/06/11 07:09 PM
03/06/11 07:09 PM
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Joined: Aug 2003
Posts: 43,272
Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,272
Bend,OR USA
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-7 or-8 on the last(  ) number depending on the fuel and the tune up  I like the extended tips plugs also  I can go look at the numbers on the plugs if you need them  
Last edited by Cab_Burge; 03/06/11 07:13 PM.
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: NGK Plugs ?
[Re: joedust451]
#944321
03/06/11 07:09 PM
03/06/11 07:09 PM
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Anonymous
Unregistered
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Anonymous
Unregistered
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Quote:
What part # or heat range NGK would work best in a .030" 440 with Indy EZ heads, FT pistons, compressions at 11.1, Resistor or non-Resistor.
5672A-9
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Re: NGK Plugs ?
[Re: moderncylinder]
#944323
03/06/11 07:17 PM
03/06/11 07:17 PM
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Joined: Sep 2006
Posts: 1,132
Home of the Bluegrass
MoparJunkie
super stock
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super stock
Joined: Sep 2006
Posts: 1,132
Home of the Bluegrass
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Will those work with Eddy heads also? (not trying to jack your thread, just asking...)
"It takes a Mopar to catch a Mopar”
1971 Roadrunner FJ6 Sassy Grass 505"RB, 18 spline 4 speed, and Dana 60 with 3.54
2022 Hellcat Charger Widebody Redeye Jailbreak: Hellraisin with 8 speed auto
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Re: NGK Plugs ?
#944325
03/06/11 07:30 PM
03/06/11 07:30 PM
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Joined: Mar 2008
Posts: 554
Kentucky
clovis
mopar
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mopar
Joined: Mar 2008
Posts: 554
Kentucky
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R5671A-8 (4224) is non-projected tip (right) $3.99/ea R5672A-8 (7173) is a projected tip (left) $1.99/ ea joe, is this a project for the dart  ?
'75 Plymouth Duster
Phase I 451 906/590/2-660 10.75/126
Phase II 451 Stage VI/590/1050 9.82/135
Phase III 383 906/Victor-Pump gas 11.30/119
"For by grace you have been saved through faith. And this is not your own doing; it is the gift of God,"
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Re: NGK Plugs ?
[Re: clovis]
#944326
03/06/11 07:35 PM
03/06/11 07:35 PM
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Joined: Feb 2005
Posts: 5,221
Branson, Mo.
joedust451
OP
super gas
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OP
super gas
Joined: Feb 2005
Posts: 5,221
Branson, Mo.
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Quote:
R5671A-8 (4224) is non-projected tip (right) $3.99/ea
R5672A-8 (7173) is a projected tip (left) $1.99/ ea
joe, is this a project for the dart ?
What Dart 
No, just helping out a friend
I'm sure the Projected tip would work better for NA.
Hey Chris, Have you fixed the Duster yet??
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Re: NGK Plugs ?
[Re: 602heavy]
#944329
03/06/11 08:16 PM
03/06/11 08:16 PM
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Joined: Mar 2008
Posts: 554
Kentucky
clovis
mopar
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mopar
Joined: Mar 2008
Posts: 554
Kentucky
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joe, its coming together. I am hoping to get the block, crank and rods from the machine shop this week. The converter is here, heads are almost done and the dana is going in this weekend. if all goes well should have it to the track by mid April.
'75 Plymouth Duster
Phase I 451 906/590/2-660 10.75/126
Phase II 451 Stage VI/590/1050 9.82/135
Phase III 383 906/Victor-Pump gas 11.30/119
"For by grace you have been saved through faith. And this is not your own doing; it is the gift of God,"
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Re: NGK Plugs ?
[Re: 602heavy]
#944330
03/06/11 08:28 PM
03/06/11 08:28 PM
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Anonymous
Unregistered
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Anonymous
Unregistered
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Quote:
Stay away from the projected style plug , NGK-6 will be fine on the street & track , will be difficult to read if any colder.
The lower the number the hotter the plug 10 being the coldest 6 being the hottest.
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Re: NGK Plugs ?
[Re: clovis]
#944332
03/06/11 08:54 PM
03/06/11 08:54 PM
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Joined: Feb 2005
Posts: 5,221
Branson, Mo.
joedust451
OP
super gas
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OP
super gas
Joined: Feb 2005
Posts: 5,221
Branson, Mo.
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Quote:
joe, its coming together. I am hoping to get the block, crank and rods from the machine shop this week. The converter is here, heads are almost done and the dana is going in this weekend. if all goes well should have it to the track by mid April.
Cool, so are you getting rid of the 906s?
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Re: NGK Plugs ?
#944333
03/06/11 09:34 PM
03/06/11 09:34 PM
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Joined: Dec 2008
Posts: 1,200
UK
602heavy
pro stock
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pro stock
Joined: Dec 2008
Posts: 1,200
UK
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Quote:
Quote:
Stay away from the projected style plug , NGK-6 will be fine on the street & track , will be difficult to read if any colder.
The lower the number the hotter the plug 10 being the coldest 6 being the hottest.
-5 being the hottest , to cold a plug will load up , used -6 with no problem on an 11.5:1 street motor , 7s are ok but a tad cold when 'cruising' around , the projected type plug will get too hot due to the ground strap being deep into the combustion chamber , ok for a stock type motor running low compression , the projected type plug will glow like an ember when running high compression street motors.
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Re: NGK Plugs ?
[Re: moderncylinder]
#944334
03/06/11 09:38 PM
03/06/11 09:38 PM
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Joined: Nov 2004
Posts: 2,825
Sk. Canada
RemCharger
master
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master
Joined: Nov 2004
Posts: 2,825
Sk. Canada
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Quote:
autolite ar3922 or if a little bit colder ar3911
autolite plugs make about 5-10 hp more than ngk plugs all the time,, thought the ngk are easier to read
 Now theres good tech right there! I think I'll give that a try in the spring. Thanks Jeff.
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Re: NGK Plugs ?
[Re: moderncylinder]
#944335
03/06/11 09:43 PM
03/06/11 09:43 PM
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Joined: Dec 2008
Posts: 1,200
UK
602heavy
pro stock
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pro stock
Joined: Dec 2008
Posts: 1,200
UK
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Quote:
autolite ar3922 or if a little bit colder ar3911
autolite plugs make about 5-10 hp more than ngk plugs all the time,, thought the ngk are easier to read
wow...
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Re: NGK Plugs ?
[Re: Brian Hafliger]
#944337
03/06/11 10:05 PM
03/06/11 10:05 PM
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Joined: Feb 2005
Posts: 5,221
Branson, Mo.
joedust451
OP
super gas
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OP
super gas
Joined: Feb 2005
Posts: 5,221
Branson, Mo.
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Quote:
Quote:
autolite ar3922 or if a little bit colder ar3911
autolite plugs make about 5-10 hp more than ngk plugs all the time,, thought the ngk are easier to read
I will try them in the BB TR deal we'll dyno in a week or so.
Please do Brian, curious to know, post results 
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