Plug Recomendation and Reading
#1540535
11/27/13 02:51 PM
11/27/13 02:51 PM
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Joined: Feb 2003
Posts: 374
Wisconsin
Mopar_Mudder
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What I have: 472 Hemi Alum Heads Mopar Performance # P5153737 Intake 1804 Thunber Series AVS 500cfm Stock Exhaust Manifolds 36 deg total timing Last time I checked the plugs they looked pretty good from what I can remember. Now I pull them and this is what I have, look rich to me. Since the last time I checked them I swithced to a Rev-n-nator and disabled the vac advace per their recomendations. Do you think that having the vac advace off could cuase this? Also the parts guys said the BKR5E are a Briggs & Straton plug? Is their something better? .JPG) .JPG) .JPG)
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Re: Plug Recomendation and Reading
[Re: Cab_Burge]
#1540537
11/27/13 03:27 PM
11/27/13 03:27 PM
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Joined: Feb 2003
Posts: 374
Wisconsin
Mopar_Mudder
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Quote:
Are you running one carb. or two ? If two is the linkage your using stock progressive or direct front and rear tied together? If you running one carb.(why so small on a hemi   ) try reducing the metering rods top step diameter by .002 to .003 and try using a # 6 or # 7 heat range plug  If running tow carbs and progressive likage do the same on the rear carb. only, if direct linkage, not progressive, do both carbs. metering rods the same  Do you know how much advance you have at cruising RPM? If so how much is it? Ain't tuning fun  
It is two carbs with a 1:1 linkage.
I don't know about the cruising timing. I have the valve covers off right now checking valve lash so I can't even check it right now.
Ya I hate tunning, and don't know squat about tunning the Edelbrocks.
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Re: Plug Recomendation and Reading
[Re: Mopar_Mudder]
#1540538
11/27/13 08:15 PM
11/27/13 08:15 PM
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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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If there's been alot of pedal pumping and or choke on to much during a tuning session that would do it. If that didn't happen then I'd check float levels/fuel psi (as you know Eddies wont handle more than ~5.5). I'm assuming that ain't oil fouling. I'd warm it up & put some fresh plugs in & go out for an extended spin then come home & pull em & see what you see. I'm assuming you have close to the correct rods/jets in there & if not oil then that looks incredible rich & more like what happens from the choke/pumping and or float/psi issues I mentioned than from a main metering issue. See what springs are in there too. EDIT I missed what was right in front of me  , plug your old ECU back in & hookup the vac hose & screw in some new plugs (same type/heat range as the old ones that were good) & put back any other tuning changes that you did at the same time as the ECU/vac adv delete changes & see what develops with the plugs now. MORE EDIT In addition to the ECU change/vac adv delete did you make any other tuning changes at that time (timing?)
Last edited by RapidRobert; 11/27/13 08:32 PM.
live every 24 hour block of time like it's your last day on earth
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Re: Plug Recomendation and Reading
[Re: RapidRobert]
#1540539
11/27/13 08:43 PM
11/27/13 08:43 PM
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Joined: Feb 2003
Posts: 374
Wisconsin
Mopar_Mudder
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OP
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Quote:
If there's been alot of pedal pumping and or choke on to much during a tuning session that would do it. If that didn't happen then I'd check float levels/fuel psi (as you know Eddies wont handle more than ~5.5). I'm assuming that ain't oil fouling. I'd warm it up & put some fresh plugs in & go out for an extended spin then come home & pull em & see what you see. I'm assuming you have close to the correct rods/jets in there & if not oil then that looks incredible rich & more like what happens from the choke/pumping and or float/psi issues I mentioned than from a main metering issue. See what springs are in there too. EDIT I missed what was right in front of me , plug your old ECU back in & hookup the vac hose & screw in some new plugs (same type/heat range as the old ones that were good) & put back any other tuning changes that you did at the same time as the ECU/vac adv delete changes & see what develops with the plugs now. MORE EDIT In addition to the ECU change/vac adv delete did you make any other tuning changes at that time (timing?)
I made no other changes. The motor was dyno tuned before I got it so I would hope the rods are close but who knows. Either way going to have to wait till spring now, snowing here 
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Re: Plug Recomendation and Reading
[Re: 71birdJ68]
#1540542
11/28/13 11:32 AM
11/28/13 11:32 AM
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Joined: Feb 2003
Posts: 374
Wisconsin
Mopar_Mudder
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Quote:
I agree with the go back to the way it was, and then take a step by step approach. But one question, have you messed with the secondary air door? It's adjustable, and the instructions from Edelbrock are useless concerning the secondary air door.
I haven't messed with them from how they came. What is the proper way of doing it?
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Re: Plug Recomendation and Reading
[Re: 71birdJ68]
#1540544
11/28/13 12:20 PM
11/28/13 12:20 PM
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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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I think I'd start with it loose to where it bogs when it opens at WOT up thru the gears then keep tightening it up till the bog just dissappears. I think there should be a non noticeable transition when the secondaries open but I ain't sure but that'd be where I'd start on that
live every 24 hour block of time like it's your last day on earth
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Re: Plug Recomendation and Reading
[Re: RapidRobert]
#1540545
11/28/13 12:22 PM
11/28/13 12:22 PM
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Joined: Feb 2012
Posts: 4,462
Morristown Tn.
71birdJ68
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Posts: 4,462
Morristown Tn.
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I figured it would be a guessing game. The instructions on the web site say nothing about it. The reason I brought it up was maybe his was opening to late .They are only controlled by a adjustable spring. The secondaries can open, but not get much air flow, so it could be rich that way. Just a thought.
Last edited by 71 RR- J68; 11/28/13 12:26 PM.
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Re: Plug Recomendation and Reading
[Re: Cab_Burge]
#1540547
11/28/13 07:49 PM
11/28/13 07:49 PM
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Joined: Feb 2003
Posts: 374
Wisconsin
Mopar_Mudder
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Wisconsin
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Quote:
Quote:
I figured it would be a guessing game. The instructions on the web site say nothing about it. The reason I brought it up was maybe his was opening to late .They are only controlled by a adjustable spring. The secondaries can open, but not get much air flow, so it could be rich that way. Just a thought.
I had made another post on tuning your carbs, it disappeared evidentily I would try leaning down the primary metering rods cruising and idle steps on both carbs the same amount, the higher step big one  by .002 to .004 and try and leave the wide open step(the bottom step) the same or a little bit smaller On the secondary air door tesnion try loosening it up a little bit (1/4 turn at a time )at a time until the motor starts to stumble or bog when you open the secondarys quickly I really don't like running a motor rich with a hot spark plug  I do like running a cooler plug with a leaner mixture, that makes the motor make more power and it doesn't contaminate the cylinders with to much fuel, which helps prevent diluting the oil with fuel  A fat or lean motor ain't happy, if the motor ain't happy the driver will not be as happy as he could be 
It does have just a slight boog now when you stab the throttle from a roll.
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