By Don Woodruff - 14 Years Ago
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OK while we are waiting for our new heads and dreaming of the fantastic horsepower we are going to have I am wondering if the 5/16 fuel lines most of our older cars came equiped with are going to be adequate. Ford equiped their Hi-Po Fe's with 3/8 lines to eliminate fuel shortages. Hoosier, Pegleg, others any comments?
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By speedpro56 - 14 Years Ago
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Don't forget, the hookup coming out of the tank is even a tad smaller than 5/16s so it seems to me that ought to be delt with as well. If we can get these gas tank companies to just install a larger 3/8s line and sock filter coming out of the gas tanks we can then install the larger gas lines and solve alot of the fuel starvation problems. It will take alot of calls to these companies to get them to listen thou. Spectra Industries in Canada is one and their ph: is 1-800-363-8533 I've already made a call but it will take alot more to get a simple problem fixed.
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By Don Woodruff - 14 Years Ago
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I was going to pull the in tank assembly out of a 79 460 equiped pickup I have scrapped and see if I could make that work. I was going to classic tubes and see If I could get a fuel line made in 3/8 instead of the 5/16 for the bird. For my fairlane I made the in tank assembly using 1/2 in copper tube, grafting a 3/8 adapter outside of the tank.
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By speedpro56 - 14 Years Ago
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I've already run a 3/8s gas line from the tank forward on my tbird and will change the line into the tank if I can't get the tank companies to build some with the 3/8s line already installed. Some of the racers at Columbus have already changed the lines in their tanks and forward to the fuel pump as to not run lean on the top end. With the power on the upswing with the new aluminum heads, 5/16s I believe is too small when 325 HP and up becomes the norm for these engines. And yes I believe 5/16s is plenty big enough for the stock to mild buildups for most of the yblocks for pleasure driving and thats great, but alot will be doing some pretty good hopups if the parts are available and to me that's just awesome!!!!! sooooooo it would be nice to have tanks and gas lines to back' um don't you think. If you find a good fit for our tanks let us know.
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By Eddie Paskey - 14 Years Ago
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Hey Guys;; During the dyno test I was runnung out of gas at top end. Engine is a John Mummart 331 stroker, engle cam, John's port job. I got a new tank--unsoldered the pickup tube and put a new 3/8 line in-- now 3/8s all the way to the fuel pump, doesn't run out now. Running race prepared Holley, just waiting for the new heads. Believe a larger line is the wayto go... Have Fun Guys God Bless Eddie
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By Hoosier Hurricane - 14 Years Ago
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Dinosaur: The Bird pickup is in the front of the tank itself, not in the fuel sender like later cars and trucks.
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By Ted - 14 Years Ago
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You can figure on the 5/16” line being able to safely support up to about 350 horsepower assuming the pressure drop at the carb isn’t excessive. Every bend or kink in the line will cut back on the flow so the shorter and/or straighter the line is, the better. Any horsepower expectations beyond this is going to require a larger line to insure an adequate volume if standing on the throttle for any given period of time. A guestimate for a well designed 3/8” fuel line should be able to support 500-550HP. For the drag cars, I typically use a AN8 line from the tank to the fuel pump and to the pressure regulator which is the equivalent of a ½” line. Usually use a dual regulator system which uses AN6 lines (equivalent of 3/8”) going to each carb or each end of a carb.
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By pegleg - 14 Years Ago
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I use a 3/8" line and I have replaced the pickup (with a Mustang in tank fuel pump). Both Ted and John are making substantially more power than I do. They would need larger lines
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By speedpro56 - 14 Years Ago
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Eddie, did you just add a 3/8s line into the tank or get one from a later tank with the sock filter already attached and install. What tank would have the correct 3/8s size line with filter and be an easy enough install?
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By Eddie Paskey - 14 Years Ago
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Hey Gary;; I silver soldored a3/8's line in the tank, using a filter just in front of the tank and another after the manual pump, with a reg. before going into the carb. hope that helps. Feels pretty good with this combo. God Bless Eddie
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By Big6ft6 - 14 Years Ago
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My 56 has the outlet in the front of the tank. I've heard some people say "sock" filter and "in-tank assembly" is there some type of filter at the outlet in my tank? I need to know becuase I bought a new tank and I didn't buy any internals to screen/filter at the outlet
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By speedpro56 - 14 Years Ago
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The new tanks have a sock filter inside. Thanks Eddie for the onfo.
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By Big6ft6 - 14 Years Ago
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thanks speedpro (sorry for the thread hijack) us newbies are often inspired to shout-out a question when reading someone else's thread without respecting the intent of the thread.
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By speedpro56 - 14 Years Ago
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Talked to a lady at Bob Drake classics parts 1-800-221-3673 and she said she would see if they may be able to either sell a gas line kit coming out of the tank 3/8s size or make a 1956 ford and tbird tank with the 3/8s line already installed. Wouldn't hurt if some other calls were made to them to show there's a market for these tanks and other fords as well, this is how we get the process started.
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By Outlaw56 - 14 Years Ago
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When fabricating these brake and fuel lines for Yblock trucks and cars, is there a standard for Push Fittings, GM Flare/double flare, Bubble, and metric fittings? I am shopping around for a top end tube flare kit and there are way to many options.
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By charliemccraney - 14 Years Ago
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For fuel line, a tool that will do standard 45 degree and maybe even 37 degree flares is all you will need. If you think you may do brake lines, get one which will also do double flares.
The 37 degree flare is what the AN fittings use. These won't be originally installed on your vehicle. They are the aftermarket fittings you'll see on race cars and some hot rods, often blue or red.
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By Outlaw56 - 14 Years Ago
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Thanks for the response on that Charlie, will go in that direction.
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By speedpro56 - 14 Years Ago
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talked to Karen at Bob Drakes classic parts and they say they have a 1955 ford car gas tank with a 3/8s line coming out of the tank. It is set up to work with fuel injection and supercharging by having a setup for a return line which could be blocked off for non supercharging etc. They are checking to see if they can get them for 1956 fords as well and hopefully tbirds. If you guys are interested in gas tanks with the 3/8s lines instead 1/4 lines to help with performance please please call them so they can see there's a market for this stuff. Their ph: 1-800-221-3673 and ask for Karen. Enough calls should help lite a fire under their feet to know were serious about our cars.
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By drof75 - 14 Years Ago
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Peg Leg,
Do you know what year the Mustang pump was? Was the level sender part of the in tank setup? If so, any mods (in line resistors) needed for the fuel gauge needed? Thanks in advance
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By Don Woodruff - 14 Years Ago
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I talked to Rock Valley this AM. They will build you any thing you want but..... are you setting down........the estimate is $775.00. A bit steep for me. I will buy a repo and make a 1/2" pick up.
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