Reading my Plugs
#1639308
06/28/14 06:17 AM
06/28/14 06:17 AM
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Joined: Nov 2004
Posts: 1,760 Port Alberni, British Columbia
MoparDonny
OP
top fuel
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OP
top fuel
Joined: Nov 2004
Posts: 1,760
Port Alberni, British Columbia
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Pulled the plugs out of my 451 for the first time in about 3 years. How do things look to you guys. I run 4 jet sizes bigger in my 800 holley. All plugs are pretty well identical.
Last edited by MoparDonny; 06/28/14 06:20 AM.
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Re: Reading my Plugs
[Re: MoparDonny]
#1639309
06/28/14 12:28 PM
06/28/14 12:28 PM
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Joined: Nov 2003
Posts: 36,040 Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
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As you know they need replaced or beaded. I use one of those mini plug cleaners with shop air & fine black abrasive (forget what type it(the abrasive) is) & it works great & makes em look like new. The ground strap tells the heat range & the flat on the threaded end tells the AF ratio rather than the insulator as commonly thought but I might be wrong on that. Google it & there are some very comprehensive sites w pics for this which'll tide you over till you spring for the innovate LM1. You ain't running too hot nor carbon or oil fouled so I'd say you're in the ballpark. EDIT found it: www.wallaceracing.com & scroll down to the "plug reading" article. pics & very informative
Last edited by RapidRobert; 06/28/14 12:33 PM.
live every 24 hour block of time like it's your last day on earth
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Re: Reading my Plugs
[Re: Cab_Burge]
#1639311
07/10/14 04:06 AM
07/10/14 04:06 AM
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Joined: Nov 2004
Posts: 1,760 Port Alberni, British Columbia
MoparDonny
OP
top fuel
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OP
top fuel
Joined: Nov 2004
Posts: 1,760
Port Alberni, British Columbia
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So.......................... What I've done now just to mess stuff up is put on an HP main body and change the plugs out one heat range cooler. I also went up from 70/78 jets (dual powervalves) to 74/80. Raised fuel pressure from 6-1/4 to 7. No timing changes. This is what the plugs look like after 5 or six days driving to work.
Last edited by MoparDonny; 07/10/14 04:08 AM.
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Re: Reading my Plugs
[Re: MoparDonny]
#1639313
07/10/14 09:07 AM
07/10/14 09:07 AM
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Joined: Nov 2003
Posts: 36,040 Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
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everyday driving (choke/accel pump) skews readings. For main metering I would go out on the highway till it's warm then pull over & replace one plug (on the hottest cyl) with a new plug & unhook the accel pump rod then ease back on the highway & drive for 10 miles or so staying out of the power system then shut the ign off/put it in neutral/foot off of the gas & coast to the side of the road & pull that plug (take a pic) & see what you see
live every 24 hour block of time like it's your last day on earth
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Re: Reading my Plugs
[Re: Cab_Burge]
#1639317
07/10/14 11:44 PM
07/10/14 11:44 PM
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Joined: Nov 2004
Posts: 1,760 Port Alberni, British Columbia
MoparDonny
OP
top fuel
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OP
top fuel
Joined: Nov 2004
Posts: 1,760
Port Alberni, British Columbia
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Cab, the car feels great. Starts better than my 04 Ram. No choke of course and idles by the time I back out of the garage. Throttle response is fantastic as far as I'm concerned. 35pri and 31sec squirters. From just off idle it'll tach out instantly in first and second gear with ET Radials. Cruise is great , hot start is, well, hot start, ha ha. I have NO driveability concerns, just that this is the whitest I've ever seen my plugs. With the new main body and significantly larger low/high speed air bleeds I was questioning things.
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