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Reed
Supercharged
Joined: 03 Nov 2002
Posts: 8515
Location: Fircrest, WA
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Post subject:
Fuel rail construction?
(Wed Apr 06, 2011 12:13 pm)
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Doc has a great article about installing injector bungs on the intake. in the article, he promised an update about creating a fuel rail. That was in 2001. Anybody have an article or tips on making a fuel rail for the slant?
I am gathering the pieces to make a serious effort at adapting Ford EFI to a slant, maybe even this year. |
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Reed
Supercharged
Joined: 03 Nov 2002
Posts: 8515
Location: Fircrest, WA
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Post subject:
(Wed Apr 06, 2011 2:09 pm)
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The best source I have found so far for fuel rail fabrication supplies is:
http://www.rossmachineracing.com/products.html
They sell injector bungs, extruded aluminum fuel rail in several diameters, tools to tap and thread the rail for different fittings, and adapters for different fuel supply options. I will probably use this company to source my supplies when I finally get to the point of building a fuel rail. Prices are fairly reasonable. |
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Matt Cramer
Board Sponsor
Joined: 01 Nov 2002
Posts: 1516
Location: Oxford, Georgia
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Post subject:
(Thu Apr 07, 2011 11:15 am)
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| Mine was just made of 1" aluminum square tubing, with bits of bar stock welded on when it needed to be thicker for the injector bungs. The ends were closed off and tapped for 3/8" NPT pipe thread. |
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Reed
Supercharged
Joined: 03 Nov 2002
Posts: 8515
Location: Fircrest, WA
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Post subject:
(Thu Apr 07, 2011 1:18 pm)
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| Hmmm. That alternative is attractive, especially from a cost standpoint. I assume I would need some sort of equipment and skills for welding aluminum? |
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DusterIdiot
Board Sponsor
Joined: 29 Oct 2002
Posts: 7146
Location: Salem, OR
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Post subject:
Yep...
(Thu Apr 07, 2011 6:06 pm)
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| Quote: | | I assume I would need some sort of equipment and skills for welding aluminum? |
Your best buddy is called a TIG welder for best results...you could probably sign up for a class at the local CC, then bring the tubing
in during "project" time...
Worst case scenario, I have a couple of short lengths of extruded rail
that would be better suited for a V-8 but might work with the right
ingenuity.
-D.Idiot
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Reed
Supercharged
Joined: 03 Nov 2002
Posts: 8515
Location: Fircrest, WA
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Post subject:
(Thu Apr 07, 2011 7:00 pm)
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I have been hankering for a TIG. I have a big stick arc welder and a Hobart Handler wire feed. I think the Hobart can use gas but I have to double check. It might be worth it to upgrade my welding outfit to TIG capabilities since I will be fabricating the aluminum fuel rail and the aluminum intake for this project. I need to learn how to weld better anyway. Hmmmm, community college. It would be a flashback to my undergrad days.  |
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Matt Cramer
Board Sponsor
Joined: 01 Nov 2002
Posts: 1516
Location: Oxford, Georgia
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Post subject:
(Fri Apr 08, 2011 1:00 pm)
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| Reed wrote: | | Hmmm. That alternative is attractive, especially from a cost standpoint. I assume I would need some sort of equipment and skills for welding aluminum? |
Yes, it was made by a local fab shop so I'm not sure what sort of welder they used. |
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Reed
Supercharged
Joined: 03 Nov 2002
Posts: 8515
Location: Fircrest, WA
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Post subject:
(Fri Apr 08, 2011 1:08 pm)
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| Ah. That makes sense. I was pricing TIG welders and about crapped myself when I saw that the cheapest non-Harbor Freight welders were $1200. No way I will be purchasing one of those any time soon. Right now I am leaning toward purchasing extruded rail that can be tapped and drilled by me. I have a drill press and know how to use it.... |
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Sam Powell
Supercharged
Joined: 04 Jun 2006
Posts: 3173
Location: Gaithersburg MD
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Post subject:
(Sun Apr 10, 2011 6:18 am)
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I purchased the rail un-machined, but cut to length. I cannot remember where I got it. I will research that a bit. Then paid Hanson, a drill company in New England somewhere, to make me a drill bit that was stepped down so it would drill a smaller hole, the size of the injector tip, and then step it out to the size of the O ring. I think I paid about 50 bucks for this drill, which seemed cheap at the time considering I then could do the drilling my self.
I than clamped the rail in a machinists vise, and drilled the holes using a large drill press. I drilled the ends for NPT threads and taped them. I made one for Lou, and one for myself. Mine has worked fine, and I think Lou's has as well.
I think I remember the drill company's name correctly. If you cannot find Hanson, I will check it out at work, as that is who we get our drills from for piano work.
If you do not want to do the machining yourself, I would think an automotive machine shop might be able to do it for you.
Sam_________________ A REAL professional is someone who knows when to hit it with a bigger hammer.
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Reed
Supercharged
Joined: 03 Nov 2002
Posts: 8515
Location: Fircrest, WA
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Post subject:
(Sun Apr 10, 2011 8:28 am)
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Sam-
I think I will do exactly what you did. Rossmachineracing sells extruded fuel rail for $10 per foot and also sells the special drill bits to drill it for injector fittings. They charge $130 for the bit to drill injector ports in the fuel rail and they also sell the bits and taps and fittings to put fuel line fittings onto the rail. They even sell fuel injector bungs for $4.50 per 3 inch tube. The bungs can be shortened to make multiple bungs from one tube. It is the most economical option I have found so far. If I had a way to weld aluminum I might try using the aluminum square tubing for the fuel rail, but I don't so I won't. |
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Sam Powell
Supercharged
Joined: 04 Jun 2006
Posts: 3173
Location: Gaithersburg MD
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Post subject:
(Wed Apr 13, 2011 3:48 am)
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What intake are you using?
SAm_________________ A REAL professional is someone who knows when to hit it with a bigger hammer.
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Reed
Supercharged
Joined: 03 Nov 2002
Posts: 8515
Location: Fircrest, WA
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Post subject:
(Wed Apr 13, 2011 8:34 am)
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I am going to be using a stock 83 aluminum single piece one barrel intake combined with a portion of a 93 Mustang 302 intake (for the throttle body and EGR mounts). They are both aluminum so I will either use a product like Muggy Weld or Dura fix to weld in the injector bungs and weld on the Mustang manifold bit or I will bite the bullet and pay a metal fabrication shop to do it for me. I would prefer to do it myself so I can control the process and spend less money, but I need to get further into the project before I make that decision.
I have a Super Six cast iron intake as a back up in case the aluminum one barrel intake won't work. I think an Offenhauser intake would be the ideal choice due to the larger carb mounting pad, but I don't have one of those.
The Ford MAF system I plan on using incorporates EGR. I plan on keeping the EGR valve functional in order to (a) run as clean an engine as possible and (b) in order to make sure the engine computer doesn't adjust the timing and fuel mixture assuming an EGR valve is present when it really isn't. |
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slackdog
1 BBL (New)
Joined: 15 Sep 2006
Posts: 8
Location: Australia
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raPoM
Turbo Slant 6
Joined: 08 May 2009
Posts: 961
Location: Round Rock Tx
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Post subject:
(Sat Apr 30, 2011 3:25 am)
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slackdog-
Are you using an angled tip injector?
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Reed
Supercharged
Joined: 03 Nov 2002
Posts: 8515
Location: Fircrest, WA
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Post subject:
(Sat Apr 30, 2011 8:22 am)
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| raPoM wrote: | slackdog-
Are you using an angled tip injector? |
Yeah. That looks like nice work, except every other EFI manifold I have seen angles the injectors towards the intake valves. |
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