Re: 440 too rich and pinging. why.
[Re: willard]
#1422012
04/23/13 03:43 PM
04/23/13 03:43 PM
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Joined: Aug 2003
Posts: 43,352 Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,352
Bend,OR USA
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If it puffs black smoke, two accelerator pumps try moving the accelerator pump arms to the lowest hole on the arm, shortest stroke As far as burning and stinking at idle try leaning,with the motor running, screwing them in,the ile mixure screws very slowly, 1/4 turn each on all four and wait for a while for the unburnt fuel in the intake manifold and exhaust system to clear out and then try again until it is lean enough to not stink at idle BTW, make sure first that the motor is running on the idle circuit only, check the primary throttle blades to see if they are opened enough to be in the transition slots instead of below them If they are, close them down so they aren't running on the transition circuit and adjust again, look at the metering rod pistons again also
Last edited by Cab_Burge; 04/23/13 03:46 PM.
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: 440 too rich and pinging. why.
[Re: Cab_Burge]
#1422013
04/23/13 04:01 PM
04/23/13 04:01 PM
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Joined: Apr 2005
Posts: 12,271 Overpriced Housing Central
RobX4406
I Live Here
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I Live Here
Joined: Apr 2005
Posts: 12,271
Overpriced Housing Central
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It may want even more initial! Wouldn't be surprised if it wanted 20* which would clean up the idle characteristics even more. Don't settle just because ti runs better now. Get it right! Getting the initial done, and you know what you need for total, getting the slots length correct is easy. If an MP, there's a table with slot lengths if you haven't seen it. Mallory, use drill bits to set slot length. Another thought of carb issue that isn't really rooted in the induction system... shocking...
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Re: 440 too rich and pinging. why.
[Re: willard]
#1422019
04/26/13 12:05 PM
04/26/13 12:05 PM
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Joined: Jan 2003
Posts: 5,912 Athens, Greece
Pyper70
master
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master
Joined: Jan 2003
Posts: 5,912
Athens, Greece
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I'll jump in on this thread being that I have Dual Quads, have a close RB setup, and I live in the EU.. Are your carb's dialed in exactly the same? Do you have both 600s (Which I think is over carb'd) with the same metering rods/jets? Did you follow the graph in the Edelbrock manual with the steps left and right / up and down to get exactly where you need to be? Before I installed my Dual Quad I knew I was going to need an Air/Fuel Meter. Wideband. If you can integrate that on to your exhaust you will be able to see exactly where you need to go with those numbers. I run an Isky 280MegaCam, Dual 500s in a Progressive setup. 440 has a mechanical advance Distributor, Initial is set to 16º, the bushing on my distributor is 18º so I get the full 34º by about 2600rpm (I don't remember the springs in the distributor to be honest...I have set it once...and I don't open it anymore). I do have the benefit of the Timing Advance dial so I can start my engine cold with about 48º....and then zero her back down when she warms up to the 34º so everything is at the distributor. As for the fuel concerns, I dunno how Poland is. Greece is crap with fuel...I run the standard 95 Octane even though I built the engine to run on California's 89 Octane. Still, the 95 they sell here is more than likely crap no matter where you go but I will never fill up at Avin, BP, Or Shell. If you have it, I use EKO or RevOil. Your best friend for that setup is going to be an air/fuel meter though. You can run a data logger if you want but I was dialing my engine 3 years back when I slipped the CH-28 on along with the aluminum cylinder heads. Took me about 2 weeks to do ($10/gallon) but I finally got her where I wanted her. P.S. Sucks about the daytime lights requirement...Luckily we don't have that issue here, but then again, I am on Classic car plates and I would be exempt from such laws
Family owned 1969 Charger R/T DualQuad 440/727/GVO/3.55s
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Re: 440 too rich and pinging. why.
[Re: Pyper70]
#1422020
05/08/13 01:58 PM
05/08/13 01:58 PM
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Joined: Jan 2009
Posts: 106 Poland
willard
OP
member
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OP
member
Joined: Jan 2009
Posts: 106
Poland
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OK, here are the plugs - #1 and #7. What ya think?
eddies are 500cfm each.
we have just a little ethanol in fuels here, generally we do not buy cheapest gas at supermarkets, we use brand fuel: BP, shell.
Last edited by willard; 05/08/13 02:03 PM.
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Re: 440 too rich and pinging. why.
[Re: willard]
#1422021
05/08/13 02:17 PM
05/08/13 02:17 PM
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Joined: Aug 2003
Posts: 43,352 Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,352
Bend,OR USA
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Those plugs look good to me, the one that is the darker color looks like it may have oil on it, is it shiny when you guys look at it or is it the picture? If it is shiny fix that, there shuld not be any oil on the plugs, they should be dull looking, not shiny It is not uncommon for both B and RB motors, especially after machining them, to have oil suck up into the intake manifold from the lifter galley due to the intake valley pan leaking or letting oil be sucked into the intake manifold One easy thing to try is the next step colder plug to help cool the combustion chambers down to help eliminate pinging What brand and heat range are those plugs? Good luck, keep the shiny side up and the greasy side down
Last edited by Cab_Burge; 05/08/13 11:01 PM.
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: 440 too rich and pinging. why.
[Re: willard]
#1422024
05/09/13 06:05 AM
05/09/13 06:05 AM
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Joined: Jan 2003
Posts: 3,575 The Netherlands
BigBlockMopar
master
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master
Joined: Jan 2003
Posts: 3,575
The Netherlands
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Can't you just get 98 octane anymore in Poland? Especially with 11:1, I wouldn't even consider 95. Here in the Netherlands 98Fuel is still readily available. 95Fuel is considered partswasher here, albeit an expensive one I have similar problems with my 496" stroker, 84cc Eddy heads and dual longram-intakes. 10.5cr. Engine pings vigorously the moment you put some throttle in it and the rpm get up to 2300-2500rpm. In my case both carbs are placed in pretty much the hottest corners of the enginebay, right above the exhaustheaders left and right. Once the underhood temps get hot enough one has to feather the throttle to prevent pinging. Maybe your friends car could use some cold-air intake system, just like mine needs badly.
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