I was told I can use this on my Dell to add a fuel return. Has anyone used it and know where I can pick one up?

Thanks, Ed

 

like that one? http://www.piercemanifolds.com/linkage.htm

 

I dont know! Is that the adapter?

Thanks, Ed

 

its a fuel inlet fitting for dual carb set up (ie, 2TG's dual 44 mikuni/weber). you can use the other end for return. Do you have a fuel pressure regulator? if you have a holley brand, it can be modified for return.

 

Hmmm...Im a little curious about this. I never planned on running the return on my Weber on my RX-7 so I just plugged the tube. But with my 4x4, Ive got a Weber on it also, and its got the stock Toyota sending and return lines like the Mazda, and I was thinking about actually using the return line but never knew if I could.

Im using a Holley 1-4 PSI regulator, so what do I need to know to modify or swap around to make it work? The Weber has a fuel inlet on it that looks like an upside down "V". One end of the "V" has the fuel line going in, the other end has a plug. Do I just need to get another hose fitting for the plugged end and run that to the trucks return line? What do I have to do to my regulator?

~T.J.

 

I've seen a dellorto with a return fitting. My dellorto didn't have one.

 

here's a pic of the holley f/p regualtor in the FB. Im running MSD FI fuel pump BTW. IIRC, the inlet is in the bottom and the outlets are on the side. I used one side for return. The other side, I installed a nipple and a "T" fitting to allow me to install a fuel gauge and the line for carb. Now for the return, I installed a weber main jet between the hardline and the soft line. I did this to regulate the flow of fuel back to the tank. No problem to date.

 

Isn't the fuel going to take the path of least resistance and bypass the carb?

 

Ok, so youve got the inlet coming in the bottom, then one outlet just goes straight to the return line, and the other goes out to the carb, with the gauge? That does seem like it might want to just keep going back to the tank instead of into the carb, lol. I dont know, thats an interesting setup though. I still wonder if on mine I can just run the return line out of the carb and back to the line to the tank...

~T.J.

EDIT: Here you can see what Im talking about with the "V" on my carb. The blue circle is where the fuel comes in, and the yellow circle is the plug. Im thinking about just getting a fitting to go where the yellow circle is and sending that to the return from there. So I have a line from the tank to the bottom of my regulator, out one side to the carb inlet, then "out" the inlet, to the return line back to the tank. The other outlet on the regulator is used for my gauge. Think it would work?

 

you need to put a 20r head on that block. That'll bring your compresstiopn to like 10.8:1 old school Toyota race trick.

 

actually not. I had an in-line fuel pressure gauge to confirm that im getting sufficient gas in the carb. Same principle as the mallory. Besides, there is a weber jet in the fuel return line to limit the flow back.

 

You see. You should've mentioned the weber jet to begin with. The jet makes the carb the path of least resistance. Making the fuel want to go to the carb. With out the jet the path of least resistance would be to go right past the carb and back to the tank.