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Re: Edelbrock of idle stumble 440 engine
[Re: fury4speed]
#2182757
10/26/16 02:22 AM
10/26/16 02:22 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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its all good now but I'm wondering if drilling the nozzles is what did the trick
live every 24 hour block of time like it's your last day on earth
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Re: Edelbrock of idle stumble 440 engine
[Re: fury4speed]
#2182869
10/26/16 10:55 AM
10/26/16 10:55 AM
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Joined: Dec 2007
Posts: 1,584
MD
p d'ro
pro stock
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pro stock
Joined: Dec 2007
Posts: 1,584
MD
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Here is what I did , it runs and there is no stumble off of idle , at all , this worked for me.
Drilled out the accelerator nozzles to .045 (went to .041 first)
Installed the .113 primary jets
Installed the .073 X .037 metering rods
Installed the stiffest metering springs This is close to where I am at so I hope it runs once I finally get going. Can you give a brief description of your motor specs/parts as it would help..
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Re: Edelbrock of idle stumble 440 engine
[Re: p d'ro]
#2182890
10/26/16 11:26 AM
10/26/16 11:26 AM
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Joined: Mar 2005
Posts: 660
fury4speed
OP
mopar
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OP
mopar
Joined: Mar 2005
Posts: 660
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Here is what I did , it runs and there is no stumble off of idle , at all , this worked for me.
Drilled out the accelerator nozzles to .045 (went to .041 first)
Installed the .113 primary jets
Installed the .073 X .037 metering rods
Installed the stiffest metering springs This is close to where I am at so I hope it runs once I finally get going. Can you give a brief description of your motor specs/parts as it would help.. The engine is a 440 , edelbrock intake and 1411 carburetor , cam is suppose to be a mild cam , I bought it this way so I have no idea what it is the engine.
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Re: Edelbrock of idle stumble 440 engine
[Re: fury4speed]
#2185696
10/30/16 07:33 AM
10/30/16 07:33 AM
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Joined: Jun 2008
Posts: 10,847
Oakdale CT
gdonovan
I Live Here
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I Live Here
Joined: Jun 2008
Posts: 10,847
Oakdale CT
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Anyone looking to part with one of these troublesome 750 cfm devices drop me a PM. I'll install it on my Duster which has wide band and have a look see.
Gary
"I think its got a hemi"
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Re: Edelbrock of idle stumble 440 engine
[Re: p d'ro]
#2186799
10/31/16 04:01 PM
10/31/16 04:01 PM
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Joined: Jan 2003
Posts: 1,374
Houston,Tx.
Lee446
pro stock
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pro stock
Joined: Jan 2003
Posts: 1,374
Houston,Tx.
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I have finally ended up with one of these notorious carbs, never had any problems with the 600 and 800's that a little tuning did not straighten out.... till now. I acquired a brand new 1411 for free. I put it on a mild 440, 240@50 cam, Holley SD intake and proceeded to tune. Big off line stumble, the distributor needed more initial and a curve anyway, so I bought the plate kit from FBO that allows you to limit total timing in the older MP dist, without having to play the braze up the slot and file game. This thing is great and this particular engine is very happy with 20* initial, 34 total, and using the vac advance adjusted to add 10 at idle on the full time vac port as recommended by FBO. Before I got the plate , I had tried the .043 squirter,HP orange(marine) acc pump plunger, and played with the jet metering rod combos until its infamous off line bog was almost gone, but not quite! Getting all of the timing issues squared away finished it off and made the car a joy to drive under all conditions but one. If you are at a complete stop and floor the throttle, it literally dies! You can hit the throttle briskly and smoke the tires, ease into the throttle and spin tires, but if you mat it, it dies! Pump is at max shot, passages are clear, and it will die every time if you mat it from a standing start, if you are already moving, no problem! it is like it is going massively lean. The floats are perfect, I am frustrated as the devil! I can put the tuned 1406 6oo cfm carb on it and it will come off the line sideways, same with my 800 performer, but that ****###@@ 750 has me stumped. It works great except that one situation. No bog in any other form of accelerating, just full bore from a standing start! Any ideas on this one??? Lee.
Last edited by Lee446; 10/31/16 04:07 PM.
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Re: Edelbrock of idle stumble 440 engine
[Re: fury4speed]
#2186863
10/31/16 05:55 PM
10/31/16 05:55 PM
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Joined: Feb 2003
Posts: 2,810
Sobieski Wi
bee1971
master
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master
Joined: Feb 2003
Posts: 2,810
Sobieski Wi
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Just use the google search on top of the Moparts page and enjoy all the lovely threads on the 1407/1411 off idle stumble , and then sit back for a month reading all 10,000 threads on how to fix it
Do you own a drill , a reciprocating saw , hammer , open wallet , and have unlimited time on your hands ???
Perfect , then the 1407/1411 is the carb for you
LOL
1971 Dodge Charger Superbee
2011 Ram Sport 1500 Quad Cab Deep Water Blue Loaded
Siberian Huskies
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Re: Edelbrock of idle stumble 440 engine
[Re: fury4speed]
#2187153
11/01/16 12:29 AM
11/01/16 12:29 AM
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Joined: Mar 2006
Posts: 9,814
MI, usa
dvw
master
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master
Joined: Mar 2006
Posts: 9,814
MI, usa
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Have ANY of you ever tried drilling the idle feed tube, changing air bleed size? Or is it easier to give up and complain? People will change metering blocks, air bleeds, squirters, squirter cams in Holleys till they turn blue. Heaven forbid you try something on a Edelbrock besides squirters, springs, rods or jets. Think outside the box. If it's lean, richen it up. It's still just a carb. Is it a full race Holley, absolutely not. Can they be a decent carb, yes.
Doug
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Re: Edelbrock of idle stumble 440 engine
[Re: dvw]
#2187269
11/01/16 10:36 AM
11/01/16 10:36 AM
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Joined: Jan 2003
Posts: 6,350
Aurora, Oh.
max_maniac
master
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master
Joined: Jan 2003
Posts: 6,350
Aurora, Oh.
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Have ANY of you ever tried drilling the idle feed tube, changing air bleed size? Or is it easier to give up and complain? People will change metering blocks, air bleeds, squirters, squirter cams in Holleys till they turn blue. Heaven forbid you try something on a Edelbrock besides squirters, springs, rods or jets. Think outside the box. If it's lean, richen it up. It's still just a carb. Is it a full race Holley, absolutely not. Can they be a decent carb, yes.
Doug  It's not rocket science. Look into almost all NSS cars and this is the carb they run and do not have these issues that every one is complaining about. I actually tried the 800's for the last 2 years and then decided to go back to the 750's as my 60 ft times were better and so was my ET. Had a small bog at first and lightened up the rear air doors and the bog is gone.
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Re: Edelbrock of idle stumble 440 engine
[Re: fury4speed]
#2187313
11/01/16 12:26 PM
11/01/16 12:26 PM
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Joined: Feb 2003
Posts: 2,810
Sobieski Wi
bee1971
master
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master
Joined: Feb 2003
Posts: 2,810
Sobieski Wi
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I didn't realize the NSS cars leave the line "OFF IDLE"
Thanx for clarifying that
LOL
Anyways
I tried drilling the idle tubes on my 1407 - Didn't work or help or change anything
On the street , daily driver , "OFF IDLE" the Edelbrock 800 series AVS is 1,0000 times better the carb
1971 Dodge Charger Superbee
2011 Ram Sport 1500 Quad Cab Deep Water Blue Loaded
Siberian Huskies
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Re: Edelbrock of idle stumble 440 engine
[Re: Lee446]
#2187343
11/01/16 01:30 PM
11/01/16 01:30 PM
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Joined: Dec 2007
Posts: 1,584
MD
p d'ro
pro stock
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pro stock
Joined: Dec 2007
Posts: 1,584
MD
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I have finally ended up with one of these notorious carbs, never had any problems with the 600 and 800's that a little tuning did not straighten out.... till now. I acquired a brand new 1411 for free. I put it on a mild 440, 240@50 cam, Holley SD intake and proceeded to tune. Big off line stumble, the distributor needed more initial and a curve anyway, so I bought the plate kit from FBO that allows you to limit total timing in the older MP dist, without having to play the braze up the slot and file game. This thing is great and this particular engine is very happy with 20* initial, 34 total, and using the vac advance adjusted to add 10 at idle on the full time vac port as recommended by FBO. Before I got the plate , I had tried the .043 squirter,HP orange(marine) acc pump plunger, and played with the jet metering rod combos until its infamous off line bog was almost gone, but not quite! Getting all of the timing issues squared away finished it off and made the car a joy to drive under all conditions but one. If you are at a complete stop and floor the throttle, it literally dies! You can hit the throttle briskly and smoke the tires, ease into the throttle and spin tires, but if you mat it, it dies! Pump is at max shot, passages are clear, and it will die every time if you mat it from a standing start, if you are already moving, no problem! it is like it is going massively lean. The floats are perfect, I am frustrated as the devil! I can put the tuned 1406 6oo cfm carb on it and it will come off the line sideways, same with my 800 performer, but that ****###@@ 750 has me stumped. It works great except that one situation. No bog in any other form of accelerating, just full bore from a standing start! Any ideas on this one??? Lee. This is mine to a tee. But mine dies flat from stop or while moving, then kicks in hard. A little scary as it breaks loose and gets a little wild. Probably won't address it til springtime.
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Re: Edelbrock of idle stumble 440 engine
[Re: bee1971]
#2187525
11/01/16 05:49 PM
11/01/16 05:49 PM
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Joined: Mar 2006
Posts: 9,814
MI, usa
dvw
master
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master
Joined: Mar 2006
Posts: 9,814
MI, usa
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I didn't realize the NSS cars leave the line "OFF IDLE"
Thanx for clarifying that
LOL
Anyways
I tried drilling the idle tubes on my 1407 - Didn't work or help or change anything
On the street , daily driver , "OFF IDLE" the Edelbrock 800 series AVS is 1,0000 times better the carb
Many do. Mine will, but for reaction time I leave higher. Doug
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