Re: another plug read
[Re: mopar dave]
#2528840
07/29/18 11:58 PM
07/29/18 11:58 PM
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Joined: Aug 2003
Posts: 43,315 Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,315
Bend,OR USA
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If the bottom pictures is of the NGK6 they are to hot If not How much total timing are you running with these pictures?
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: another plug read
[Re: mopar dave]
#2528857
07/30/18 12:25 AM
07/30/18 12:25 AM
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Joined: Sep 2014
Posts: 4,457 Washington
madscientist
master
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master
Joined: Sep 2014
Posts: 4,457
Washington
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well, i can tell ya this. wide open on my wide band reads 12.5-12.6. very safe there. Thats way more accurate than reading the plug. Plugs are just too hard to read. It may be fine at WOT but that thing is pig rich at a cruise and I'm not going to say you are correct at WOT until you kill it clean and cut the plug apart. I don't care what the A/F meter says that thing is pig rich at idle and cruise. Do I need to post a picture of what a decent tune up looks like? I trust my ability to read a plug long before I trust that gauge. That's for damn sure. It's PIG rich.
Just because you think it won't make it true. Horsepower is KING. To dispute this is stupid. C. Alston
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Re: another plug read
[Re: mopar dave]
#2528892
07/30/18 02:19 AM
07/30/18 02:19 AM
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Joined: Sep 2014
Posts: 4,457 Washington
madscientist
master
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master
Joined: Sep 2014
Posts: 4,457
Washington
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Can you post a plug with a proper tune? I really would like to see it. The camera makes them look darker than they really are. They are dark grey in color. What part of the plug are you looking at that says pig rich to you? I will go out in the morning a grab a couple. They should be white. Hope I can figure out how to post a picture here. I've never done it. I may have to email them to you and let you post them.
Just because you think it won't make it true. Horsepower is KING. To dispute this is stupid. C. Alston
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Re: another plug read
[Re: mopar dave]
#2528898
07/30/18 03:05 AM
07/30/18 03:05 AM
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Joined: Nov 2003
Posts: 36,041 Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
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FWIW Wallace racing has good plug tuning pics/info.
live every 24 hour block of time like it's your last day on earth
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Re: another plug read
[Re: mopar dave]
#2528950
07/30/18 11:21 AM
07/30/18 11:21 AM
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Joined: Jan 2003
Posts: 8,037 Tulsa OK
Bad340fish
master
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master
Joined: Jan 2003
Posts: 8,037
Tulsa OK
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I think plug reading with street driving and pump gas is going to be a waste of time. If it feels happy and good roll with that. You are going to have poor distribution at low load and overlap and reversion further messes things up. Your intake isn't designed for putzing around town, it is designed with a RPM range in mind, when it is running in that range distribution will be way better.
68 Barracuda Formula S 340
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Re: another plug read
[Re: Bad340fish]
#2528990
07/30/18 12:50 PM
07/30/18 12:50 PM
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Joined: Jan 2003
Posts: 14,514 So. Burlington, Vt.
fast68plymouth
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 14,514
So. Burlington, Vt.
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I think plug reading with street driving and pump gas is going to be a waste of time. If it feels happy and good roll with that. You are going to have poor distribution at low load and overlap and reversion further messes things up. Your intake isn't designed for putzing around town, it is designed with a RPM range in mind, when it is running in that range distribution will be way better.
Yup.
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123 Dealer for Comp Cams/Indy Heads
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Re: another plug read
[Re: mopar dave]
#2529052
07/30/18 02:43 PM
07/30/18 02:43 PM
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Joined: Aug 2003
Posts: 43,315 Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,315
Bend,OR USA
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I get the best plug colors with 14.5 AFR or leaner(up to 15.5 AFR cruise or idle) at idle and light part throttle cruise RPM below 2500 RPM I agree with the mad scientest on plug colors, white to very light tan is perfect Dominic and I have seen the same thing your seeing and feeling with the AFR rich, richer feels good but leaner is meaner except at WOT
Last edited by Cab_Burge; 07/30/18 02:53 PM.
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: another plug read
[Re: mopar dave]
#2529057
07/30/18 02:49 PM
07/30/18 02:49 PM
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Joined: Sep 2014
Posts: 4,457 Washington
madscientist
master
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master
Joined: Sep 2014
Posts: 4,457
Washington
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I just sent Dave three pictures of plugs that came out of my car to post. As soon as Dave gets to it, I'll post some comments. Thanks Dave
Just because you think it won't make it true. Horsepower is KING. To dispute this is stupid. C. Alston
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Re: another plug read
[Re: Bad340fish]
#2529085
07/30/18 03:28 PM
07/30/18 03:28 PM
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Joined: Jul 2004
Posts: 19,318 State of confusion
Thumperdart
I Live Here
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I Live Here
Joined: Jul 2004
Posts: 19,318
State of confusion
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I think plug reading with street driving and pump gas is going to be a waste of time. If it feels happy and good roll with that. You are going to have poor distribution at low load and overlap and reversion further messes things up. Your intake isn't designed for putzing around town, it is designed with a RPM range in mind, when it is running in that range distribution will be way better.
Kinda how I approach it these days with the WB being a directional tool more than locked in stone........
72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....
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Re: another plug read
[Re: mopar dave]
#2529100
07/30/18 03:47 PM
07/30/18 03:47 PM
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Joined: Jan 2003
Posts: 14,514 So. Burlington, Vt.
fast68plymouth
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 14,514
So. Burlington, Vt.
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I’d be very surprised if a combo like Dave’s actually drove well with the a/f meter reading hi-14’s to lo-15’s.
For part throttle operation I get them to drive to my satisfaction, and whatever the a/f ratio is..... so be it.
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123 Dealer for Comp Cams/Indy Heads
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