Guest Frank280z Posted April 11, 2001 Share Posted April 11, 2001 Where is the best location for a fuel return line? I'm running the holley blue pump w/ regulator. To an edlebrock carb. T fitting at the carb? Or off the other side of the regulator?? Thanks Frank Quote Link to comment Share on other sites More sharing options...
Guest zfan Posted April 11, 2001 Share Posted April 11, 2001 Frank, Im running the same fuel set up as you. Holley blue, regulator, Edlebrock carb. Did you use stock fuel line 5/16". I replumbed tank to 3/8" line and used stock 5/16" for return fuel line. Mike Quote Link to comment Share on other sites More sharing options...
Guest zfan Posted April 11, 2001 Share Posted April 11, 2001 Frank sorry I missread your post. I used the regulator as a point to start fuel return. Mike Quote Link to comment Share on other sites More sharing options...
Guest Frank280z Posted April 11, 2001 Share Posted April 11, 2001 Thanks. I'll try that... Quote Link to comment Share on other sites More sharing options...
BLKMGK Posted April 14, 2001 Share Posted April 14, 2001 Does the regulator that comes with the Blue require a return? I thought it was a deadhead pump. Uh oh! Quote Link to comment Share on other sites More sharing options...
Guest zfan Posted April 15, 2001 Share Posted April 15, 2001 Jim, My father had the holley blue and did not like the noise so he gave it to me. I bought the regulator with return. Do not know if it came with dead head or not as he only gave me the pump only. Sorry I couldnt help more. Mike Quote Link to comment Share on other sites More sharing options...
pparaska Posted April 15, 2001 Share Posted April 15, 2001 If you take the regulator that comes with the Holley Blue pump apart (easy), you see that its a deadhead regulator with two outputs. No provision for a return line, in the regular sense. A return style regulator has a port for bypassing the held back fuel back to the tank. Quote Link to comment Share on other sites More sharing options...
BLKMGK Posted April 15, 2001 Share Posted April 15, 2001 Thanks Pete. I took a real hard look at it last night and it does indeed have one input and two outlets for a carb. Not a real efficient looking thing so I'm glad it's not got to flow too much fuel! Geez I hate carbs... Quote Link to comment Share on other sites More sharing options...
danc Posted September 27, 2001 Share Posted September 27, 2001 Guys: I need a solution on what to do with the return line too. I have an 83ZX, 385 H.P. SBC, Carter Elec Pump (GM part#& Box), Holley Carb and adjustable fuel pressure regulator. Holley Tech guys told me they do not make a regulator with a return and I'd like to keep what I already have if possible. I'm very close to start-up and thought about using a one way fuel safety valve on the return such the ones used on boats to keep the gas from spilling out of the vent tube.. Thanks Dan Quote Link to comment Share on other sites More sharing options...
Modern Motorsports Ltd Posted September 27, 2001 Share Posted September 27, 2001 quote: Originally posted by danc: Guys: I need a solution on what to do with the return line too. I have an 83ZX Good question Dan, when I was carbed I just quit using my return line thankfully it didn't rust out in 5 yrs as I'm now using it again with EFI. I'm not aware of a simple way for you to employ it, I hope someone else is. I'm curiuos on your one way vent line valve......does it have near zero resistance to vent air but won't vent gas? or it allows vaccuum to be relieved but not pressure? I Had some fuel dribble out of my vent line recently after some hard driving and didn't like that... Quote Link to comment Share on other sites More sharing options...
BLKMGK Posted September 27, 2001 Share Posted September 27, 2001 I bought a one way valve from a race supply place thinking it could be used as a rollover valve - didn't take much thinking before I realized it would NOT work in that manner. I DO have a rollover valve with a steel ball inside but despite Jeg's saying it will fit my cell it apparently requires drilling a hole to be used - it's on the shelf. My vent, as a result of all this, is simply vented out the fender If there's another solution I'm all ears! I'd say cap off the stock return on both ends and set it aside for later use if you want. When I go EFI I'll simply run a second line - it's not that hard or expensive and I want to be sure I can handle the volume. (shrug) To each his own.. Quote Link to comment Share on other sites More sharing options...
danc Posted September 28, 2001 Share Posted September 28, 2001 Ross: Thanks for the reply. The brass In-Line Valve I am familiar with is a low pressure valve allowing air, but not gas, to escape the vent tube. I only found that out when the original valve failed on my boat. I filled the gas tank one evening which overflowed from the vent tube during the heat of the next day and ruined my pinstripe. The dealer knew exactly what the problem was and it hasn't happened since. Thought I would check to see if anyone is using any "magic" before I picked one up. Quote Link to comment Share on other sites More sharing options...
danc Posted September 28, 2001 Share Posted September 28, 2001 BLKMGK Thanx for your take! Not sure if the 2 valves we are talking about could be that different, but think I'll pick one up and give it a shot. Not sure if I will be going EFI later on or not, but I do want to keep that as an option. The direction I ended up going with a new fastburn 385 was not exactly what I had in mind when I started this whole thing. Started out as a rebuild of an old cop car 350, then a 330 H.P. crate, then a ZZ4 355 H.P. crate. Now I'm planning on the "Hot Cam" and 1.6 rockers... Blah Blah Blah. I'm sure everyone on this forum has a like "twist", or we wouldn't be here in the first place. At any rate thanks! Quote Link to comment Share on other sites More sharing options...
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