440 w 750 Eddy....Too Rich After Leaning Off 2 Steps ?????

[DocMel]

I forgot to mention:  If you really want to be sure that you have your carb tuned correctly and want to learn how  (main jets, metering rods, their relationships to each other, mixtures, acell pump, etc

Look at 2013s issues of Mopar Action Magazine :  They ran a series of tuning articles on the Carter  (The same carb as the Eddy you are running)

Those articles have to be the easiest and best laid out reads on how to tune your carb:   Great pics, and easy to understand   At the same time they had super distributor and timing articles

Again, I recommend you look at the carb articles FIRST.  Take your time and go with them: They show how to tune the carb at all circuits:  Idle, cruise and WOT.  How to adjust the acell pump, you name it.  They also go over air/fuel mixtures at all circuits : I was a a simpleton when it came to carbs, but these articles really cleared up my understandings : If I can understand it, and even more, work an now tune them, trust me, ANYONE can

Tuning carbs is almost a lost art.   Its actually easy to do, just a little time consuming.  The parts involved are SUPER cheap.  You just need a little patience:  I have now used these articles to tune up my eddy on my other engines chevy and Ill tell you once you hit the right combo on the carb, hence the air/fuel mixture, it will really wake up your engine:  Its unbeliveable the improvement noticed in both seat of the pants AND a dyno

THEN:

Once the carb is squared away, then move on to the timing articles.   You get the timing right, and your car will fly   After that you will have to go back to the carb to make minor adjustments : And once you do that, you will not only love the results, you will really get a feeling of self accomplishment.

Plus when you help your friends out you will look like Merlin the M :naughty:agician

My hats off to the guys at Mopar Action: SUPER articles, easy reads and beats any books I have read on the subject as far as basic tuning goes

[HP_Cuda]

Mel

I have never heard anyone stating you should work out the carb then the timing since the timing of the car is quite easy (turn it one way or the other to set the proper advance) while tuning a carb can take quite a long time based on whats wrong.

My theory has always been to eliminate the easy bones of contention first and then move up to the ones that can give you fits. The carb for example could be any number of things: jets, squirters, accelerator pump, accelerator cam size, idle mixture screws, metering plate, power valve, etc).

 
B

[DocMel]

I would agree in most cases

But in this case, the carb should be worked on first:  Im going with what he stated the prob is : A rich mixture . If thats the case, and since his car is running now, he should focus on the carb first, IF the prob is a air fuel mixture as he has stated    I dont believe timing is going to help an existing air/fuel prob

[Strawdawg]

Retarding timing results in a richer af

Steve

[momack55]

Strawdawgs right,

I have leaned off the rods and jets 2 steps from stock.  I now have the timing at 13 btdc initial.  Big difference, snaps off the line and is more responsive.  We will be putting the sniffer up its b*m this week to see what the result is!!  If she is still too silly then it can be just a case of the next step down.  I have the jet size and rod/spring relationships all worked out.  The accel pump is set at the top hole!  Where it should be for this application.  All this is in tandem with the planned engine and exhaust mods should get me what I want!! 

Thanks all for your input!!

Mozz in Oz!! 

[Chryco Psycho]

you want as little accel pump shot as possible without a hesitation , furthest from the pivot is the least pump shot

[momack55]

Yep Chryco,

She don't hesitate at all now....just snaps to it!!  Maybe give a little more advance and see what happens!

Mozz!

[Strawdawg]

I don't know, yet, if I am right, or not....

Be sure the total advance is in the range of 34-36 degs.  I would assume that you know the advance is working correctly and not stuck so that it does not go up as it should when you rev the engine.  You posed 8.5-1 at wot and a stuck or sticky advance could be a big contributor.  Check the total advance which is what will affect the wot throttle performance.  Advancing the initial will perk it up off the line but may not fix wot problems unless everything is working properly.

Also, back to the exhaust.  A 440 is going to be restricted with 2" pipes and that, in itself, will make it run richer at wot.

As someone said above, make sure the basics are correct before you get too wild with the carb or you might have to undo some of your changes

[momack55]

Points taken Strawdawg. 

The pipes are going 3" and the headers at 1 7/8 to 3" two straight through sport mufflersat 3" ID.
It must breathe!!

Mozz! 

[hemiken]

mopars love breathing

[Chryco Psycho]

2.5" pipes may be enough for your combo , you can mark the damper 2 3/8 inches clockwise from TDC & that is 36* or time it by ear at 3000 rpm advancing the timing until the engine rpm quits rising so it is just on the edge where the rpm quits rising & goes falt , more timing not increasing the rpm at all

[momack55]

Yep,

I get that Chryco, I will however be going 3" in the event that we decide to go with bigger power. Thanks for the tuning info! 

Kenny!  Did ya call Matty yet??  He thinks I want to keep his pistol grip!  I'm just trying to steer him in the right direction.
Otherwise he will have wasted his money on a left hook grip that's a pain to use from the right seat!!  Set him straight will ya?? I'll pay him for this one and he can get one of yours, if he likes what he sees.!!

Mozz!!   

[hemiken]

Yep,

I get that Chryco, I will however be going 3" in the event that we decide to go with bigger power. Thanks for the tuning info! 

Kenny!  Did ya call Matty yet??  He thinks I want to keep his pistol grip!  I'm just trying to steer him in the right direction.
Otherwise he will have wasted his money on a left hook grip that's a pain to use from the right seat!!  Set him straight will ya?? I'll pay him for this one and he can get one of yours, if he likes what he sees.!!

Mozz!!   

Hey Mozz,

I did send him text messages and a couple of pictures......... Are you sure he knows how to read messages on his phone buddy ?

[momack55]

Errr!!   I've watched him navigate his phone!!!   It's primitive at best!!  I've just texted him!!
Watch this space!!

Maury!!

[hemiken]

  Good ole Matty.......