Carter to Weber K551 Swap

Been a while since I posted here, but I was hoping to get a bit more help...


I have been doing some research on a carb swap from the original single barrel carter.

I decided to take the plunge and purchase the Weber K551 kit. I am making the switch due to the steep incline flooding issue I run into with the Carter.

So my question is what is the difference between these two regulators, and does anyone have experience with this swap?

Regulator #1

Regulator #2

 

My experience has been the Holley is much more accurately adjustable and much better quality. I used the other style a couple of times and they leaked and weren't accurately adjustable (using a fuel pressure gauge). I switched to the Holley style and never looked back.

 

Are you using a pressure gauge with it?

Edit : Nevermind I didn't see the pressure gauge in parenthesis.

So I guess I'm wondering how the Holley is adjusted, is it a screw? Is the only way to see what pressure your at, is by using a gauge? And are you using an reducer bushing on the regulator to fit your gauge to?

 

I am looking into purchasing the holley regulator and gauge, but am having trouble figuring out how I am going to get the regulator to set inline with my rubber fuel line?

This is what I am looking at purchasing...

Holley 12-804 Fuel Regulator

Fuel Ressure Gauge Adapter

Pressure Gauge

So with these parts I will be able to tie the gauge into the fuel line, but I am confused as to how I will get the regulator tied in?

Any help would be appreciated, and feel free to let me know how stupid I am for asking these questions.

 

I've got the same regulator, but in hte 4.5-9 (?) psi range. Its got one input and 2 outputs.

I currently have the second output plugged, But I am going to place a gague in the second port eventually.
So if you put the gauge in the second port, you will not need the adapter to put it in line since the regulator will supply the sam pressure to both output ports.

 

EDIT: The forum won't let me line the "diagram" up right, just check the link...




http://www.holley.com/data/Products/Technical/199R7914-3.pdf < Better diagram in here.

 

Thanks DrDanteIII!! By the way are you running the Weber?

 

You're welcome.

I'm running a mc2100 that came with the v8's.

 

What Dr. Dantelll said. I set the running pressure with a gauge in the second port then removed the gauge and plugged the port. Reason is the location of my pressure regulator. I didn't want a rock or something to break the gauge causing a fuel leak. In your case you could probably leave the gauge on depending on where you mount the regulator. There is a jam nut and a set screw for setting pressure.

 

Probably a smart idea to set it and plug it, no need to have one more thing to worry about.

 

Do youall with the modern Jeeps have a high fuel pressure prob?
I just installed a Weber 32/36 right out of the box with an existing '60's vintage pump with no probs that I can gleen at this time (?)

With a Weber, what are the symtoms of too high of a fuel pressure?

 

From what I have read, you can damage the needle and float at anything above 5 psi.

 

Thanks for the reply and headsup. I'll check into it some more. I had only read that too high a pressure could cause flooding.

 

No problem! I'm just hoping that switching to the weber will net me better results on steep inclines.

I've heard alot of guys saying the carter won't idle properly, but that hasn't been my problem. Hard starting, and flooding out in the hills has been my downfall.

 

My Carter YF worked good, but, if I mis-judged a climb on loose dirt and had to roll back and stop hard, I got the bowl-slosh-drowning-die thing ... not so with the Weber (so far anyway)

 

I noticed it failing me on a long climb. It is alright no short hills, but on a long climb I would have to really ride the engine hard to keep it from stalling out.