ToplessZ Posted February 19, 2006 Share Posted February 19, 2006 Ok Im thinking about making my own fuel rail. I need to know a couple of things. Is there an ideal internal diameter or does it matter. Also does it matter if the threads for the barbs protrude into the path of fuel flow within the rail. I hope these are not stupid questions. Quote Link to comment Share on other sites More sharing options...
ToplessZ Posted February 22, 2006 Author Share Posted February 22, 2006 anyone? Quote Link to comment Share on other sites More sharing options...
mobythevan Posted February 22, 2006 Share Posted February 22, 2006 You will find that fuel rail extrusion is typically available in two diameters. check this link out, i can't imagine you would need more than .5" diameter, unless you are going to run bigger than 1/2 inch fuel line. http://www.rossmachineracing.com/extrusion.html I believe the only concern with the barb fitting threads portruding would be reducing the overall diameter and thus reducing the flow potential of the rail. I am just throwing in my 2 cents, since no one else replied. I bought fuel rail extrusion to make my own setup, but I am going to use o-ring injectors which presents more problems with reaming and machining the oring openings. Quote Link to comment Share on other sites More sharing options...
zguy36 Posted February 23, 2006 Share Posted February 23, 2006 I also used fuel rail from ross machine and have had good luck with it. I'll post some pics when I get home. Quote Link to comment Share on other sites More sharing options...
Administrators BRAAP Posted February 23, 2006 Administrators Share Posted February 23, 2006 We purchased 8 feet of the fuel rail extrusion from Ross machine for a few of our projects including my 240 race car, my V-8 Z, another L6 for a friend, …. If using the Rossmachine fuel rail and the OE injectors with the barbed fittings, there is plenty of meat for threading and for mounting brackets, so you won’t have issues there. The ends of the fuel rail will need to be drilled and tapped for 3/8 NPT or you could use some form of bolt on O-ring plug with fittings etc. I’ve included a couple pics of the Rossmachine extrusion that I machined for our L-28 powered 240 Z race car. I machined the O-ring pockets for the 14mm O-rings and custom fabbed the mounting brackets as well. As Moby mentioned, the O-ring style is a bit more labor intensive, (machine shop work only, not for the garage hobbyist), due to the precision of the O-ring bosses for sealing purposes. I do have enough fuel rail extrusion for another L-6 fuel rail and could build one drilled and tapped with 1/8†NPT for 6 injectors, one or two extra 1/8 NPT ports for anything else like cold start, fuel pressure gauge, etc., and both the ends drilled and tapped 3/8†NPT, for $160 plus shipping. Simply paint and bolt on. I also have a simple tubular fuel rail with injectors for sale that my father put together, it works, doesn’t leak. More details about it with pictures here… http://classifieds.hybridz.org/showproduct.php?product=1813 Our 240 Z race car project… http://www.msefi.com/viewtopic.php?t=15436 Quote Link to comment Share on other sites More sharing options...
pallnet Posted February 23, 2006 Share Posted February 23, 2006 Currently on my site I supply fuel rails as follows in a smooth or finned type of stock: L28 Barb 11mm O-ring 14mm O-ring KA24DE, SR20DE & SR20DET 11mm O-ring 14mm O-ring RB25DET (Although not added to the site yet, they are available) 11mm O-ring 14mm O-ring RB20DET (Although not added to the site yet, they are available) 11mm O-ring 14mm O-ring Smooth stock has an 6an bore. finned stock has an 8an bore. I can get 8an & 10an bored smooth stock for special projects. I make any of the previously listed rails to your order. Just take the link below to my site. Quote Link to comment Share on other sites More sharing options...
240Z_Master Posted February 23, 2006 Share Posted February 23, 2006 Currently on my site I supply fuel rails as follows in a smooth or finned type of stock: L28 Barb 11mm O-ring 14mm O-ring KA24DE' date=' SR20DE & SR20DET[/b'] 11mm O-ring 14mm O-ring RB25DET (Although not added to the site yet, they are available) 11mm O-ring 14mm O-ring RB20DET (Although not added to the site yet, they are available) 11mm O-ring 14mm O-ring Smooth stock has an 6an bore. finned stock has an 8an bore. I can get 8an & 10an bored smooth stock for special projects. I make any of the previously listed rails to your order. Just take the link below to my site. Trust me, this guy knows what he's talking about. Check out Pete's Fuel Rails. Quote Link to comment Share on other sites More sharing options...
Silent Posted February 24, 2006 Share Posted February 24, 2006 paul, what would it cost me to do a fuel rail, for the su's feed in, feed for front carb, feed for rear carb, fuel return, im looking for something to clean up the fuel lines in the engine bay because that is EXACTLY what im looking for. Quote Link to comment Share on other sites More sharing options...
Jason Jarvis Posted February 24, 2006 Share Posted February 24, 2006 Currently on my site I supply fuel rails as follows in a smooth or finned type of stock: L28 Barb 11mm O-ring 14mm O-ring Smooth stock has an 6an bore. finned stock has an 8an bore. I can get 8an & 10an bored smooth stock for special projects. I make any of the previously listed rails to your order. Just take the link below to my site. I have one of the 14mm, o-rings, nice looking part, only test fit so far, but looks good. Which reminds me, I think I owe you some feedback.... Jason Quote Link to comment Share on other sites More sharing options...
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