Carburated 3.4 - sputters when turning right

[Second Skin Rep]

I have a 3.4 in my sand rail.
SHe is turbo charged and has a dual carb (holley) set up.
When I turn to the right just the slightest bit, she sputters out.

We swapped everything we could.
Took a brand new identicle carb off of a new car that was running perfectly and put it on mine. Same problem.
Added a slosh kit. no help
change:
fuel filter
fuel pump
fuel lines
regulator
carburator
jets
needle and seat
adjusted the float level..

we can get it to go away by changin the jetting and float level, but then I lose all power..
3 shops have tried to work on this thing and nobody knows what it is...
any help?

ANT

https://www.secondskinaudio.com

[Guest]

Hmm.

What do you mean by "slosh kit".

First thing that comes to mind is the pick up in the tank, but without seeing it, I can't even begin to think about diagnosing it.

Also maybe fuel lines could be a cuplrit.

As long as the fuel bowls stay full, I can't see the carb itself being an issue. It seems more like a fuel supply problem, whihc fattening up the mixture would also indicate to me, you're dumping more than enough fuel in, which when there is the lack of supply it continues to run, due to the over abundance of fuel, know what I mean?

[bszopi]

Yeah, I was thinking pickup as well... Is there a way to rotate the pickup 180º and see if it still does it?

[Guest]

I wanted to ask:
What are you using for a pump?

[CNCguy]

The carb shouldn't lean out on a slight turn. I would check your wiring for a short or loose connection somewhere. Do you have a tach in it? If so, does it fluctuate when the engine cuts out? To me it just seems like it's a primary ignition issue but I have been wrong before.

[Second Skin Rep]

The carb shouldn't lean out on a slight turn. I would check your wiring for a short or loose connection somewhere. Do you have a tach in it? If so, does it fluctuate when the engine cuts out? To me it just seems like it's a primary ignition issue but I have been wrong before.

I have 3 guages.
oil temp
oil pressure
volt
all stay stable during the sputtering...

[Second Skin Rep]

Hmm.

What do you mean by "slosh kit".

First thing that comes to mind is the pick up in the tank, but without seeing it, I can't even begin to think about diagnosing it.

Also maybe fuel lines could be a cuplrit.

As long as the fuel bowls stay full, I can't see the carb itself being an issue. It seems more like a fuel supply problem, whihc fattening up the mixture would also indicate to me, you're dumping more than enough fuel in, which when there is the lack of supply it continues to run, due to the over abundance of fuel, know what I mean?

Slosh kit is vent extentions and a baffle to keep the fuel in the bowl from sloshing around.
I am not sure about the pick up in the fuel tank. What should I be looking for?

[Guest]

Slosh kit is vent extentions and a baffle to keep the fuel in the bowl from sloshing around.
I am not sure about the pick up in the fuel tank. What should I be looking for?

Ok, I've just never heard of an extension kit being called a "slosh kit".

Make sure that the pick up is in an area that will not get uncovered, or pinched. Sometimes, especially if a soft pick up is used, the tube can get pinched as sloshing pushing the pick up to one side but not the other.

Marty also has a good suggestion, it wouldn't hurt to check over the electrical side.

What are you using for a pump? Electric, mechanical?

[Second Skin Rep]

Ok, I've just never heard of an extension kit being called a "slosh kit".

Make sure that the pick up is in an area that will not get uncovered, or pinched. Sometimes, especially if a soft pick up is used, the tube can get pinched as sloshing pushing the pick up to one side but not the other.

Marty also has a good suggestion, it wouldn't hurt to check over the electrical side.

What are you using for a pump? Electric, mechanical?

pump is electrical

[geoffinbc]

You said you have a dual carb setup. What size are the carbs and how are they oriented?

[Second Skin Rep]

You said you have a dual carb setup. What size are the carbs and how are they oriented?

It is a single carb, double barrel

[geoffinbc]

Ahh I see I though you ment it had 2 carbs and depending on how they are aranged on the motor, turning may cause fuel to slosh to the float side and flood it out.

Yuu can rule out a pump pickup problem by filling the tank right up. If this is done and the problem persists the only other problem may be if you use a soft pickup tube it could be sucking itself against the side of the tank.

If that check does nothing then you know it is a carb problem.

[Ortie666]

My advise is to jack up the float a bit to ensure the jets are submerged at all times..that spuddering sounds like no fuel because ive had a couple of road cars that didnt like hard left turns.. fuel would hit one side of the bowl and obviously keep the float up and it would suck air threw the jet(s)... but other than the float level there is really no way of getting away from that problem besides getting a set of webers that are alot less prone to starvation under hard manuvering

[Second Skin Rep]

My advise is to jack up the float a bit to ensure the jets are submerged at all times..that spuddering sounds like no fuel because ive had a couple of road cars that didnt like hard left turns.. fuel would hit one side of the bowl and obviously keep the float up and it would suck air threw the jet(s)... but other than the float level there is really no way of getting away from that problem besides getting a set of webers that are alot less prone to starvation under hard manuvering

They adjusted the float level wevery which way they can and still nothing has helpped. If they adjust it too much the problem goes away, but then the car can't go straight for very long. no more problems to thr right, but the engine pulsates and the front end starts to hop up and down.

I have taken all of your suggestions to them and they have tried everything.
The next move is to re mount the carb in the other direction (180 degrees) to see if it then sptutters to the left. If it does, then that tells us it is the carb. if it still sputters to teh right... um....

[jjcom]

I just had an idea about this. Perhaps we're all looking at this the wrong way. What if it's not the carb, but a problem with the steering? If there's a lot of load put on the motor from the power steering pump, the motor will sputter. I was driving a Chevy 2500 4x4 a while back...as I was turning around, the tires got caught in a hole in some gravel. When I tried to turn the wheel, the truck sputtered and about died. I then just pulled forward and turned the wheel and it was fine. Maybe some part of the steering isn't adjusted right and is putting a large load on the motor when turning.