nismo_zxt Posted April 1, 2011 Share Posted April 1, 2011 (edited) I know this is not new, but I wanted to share my Fuel rail concept. So, I start with buying a few extrude bars... I found some drawing here on hybridz to get an idea and start modeling with mine design software. An haft-hour later I got my print and I start it. I used a Aluminum 6063 Dash-8 type bar and I made ​​thread and 90 deg chamfer to allow the insertion of fitting with an tight fit O-ring. I use 6 x 5/16 Hose Barb to AN Adapter Fitting with Boss O Ring and 2 x fitting -6 AN Flare to -8 AN Boss O Rings. I choose use the -8 AN fitting because the Alu. Dash-8 bar has an ID of .690". Which is exactly the measure needed to thread the AN -8. For the 5/16 Hose Barb Adapter I made a 60 deg chamfer on the fitting. I've done the same thing then the -6 AN to -8 AN for the tight fit O-ring. Those are greats, because I can use my stock injectors are use an bigger one. The next setup is to make a pressure test and polish it. But, I am very optimistic that it will support more than 50 psi easily. If everything goes well I will start a few more for my 300zx car on Dash 6 bar. I hope this inspires some of you Enjoy! Here are some pictures and more on: Nismo_zxt L28 Fuel Rail Edited April 1, 2011 by nismo_zxt Quote Link to comment Share on other sites More sharing options...
cockerstar Posted April 1, 2011 Share Posted April 1, 2011 Looking good! I'm a fan of those barbed fittings Quote Link to comment Share on other sites More sharing options...
nismo_zxt Posted April 7, 2011 Author Share Posted April 7, 2011 Thank cockerstar! I use them instead of those with barbed fitting with NPT threads. The NPT must have an precise thread with perfect diameter and depth to get an nice seal. With the -AN thread, it's much more easy to do. Just add the right chamfer for the o-ring and you got an perfect seal. Quote Link to comment Share on other sites More sharing options...
z-ya Posted April 16, 2011 Share Posted April 16, 2011 That is some nice work. Good job! Pete Quote Link to comment Share on other sites More sharing options...
rjstcroix Posted April 17, 2011 Share Posted April 17, 2011 Hey, Nice stuff. MMmmmmmm....car candy...yum! RSC Quote Link to comment Share on other sites More sharing options...
theghosttanker Posted May 26, 2011 Share Posted May 26, 2011 I am about to make my own barbed-fitting fuel rail, and am wondering where you found those fittings....I can easily find brass ones but I want silver colored. Quote Link to comment Share on other sites More sharing options...
nismo_zxt Posted May 26, 2011 Author Share Posted May 26, 2011 Thanks for the comment guys! I get those from the ebay seller; sweet_performance Or you can search for O ring Brab fitting Keep us informed of your project. Quote Link to comment Share on other sites More sharing options...
rossman Posted June 3, 2011 Share Posted June 3, 2011 Nice. What did you use to cut the chamfers? Quote Link to comment Share on other sites More sharing options...
nismo_zxt Posted June 3, 2011 Author Share Posted June 3, 2011 All the drilling, chanfer and taps on the rail has been done on an milling machine. So they are perfectly perpendicular to the base. I use a standard 90deg 3/4in Countersink for aluminum. This was mounted on 40 Shank/End Mill Adapter. Quote Link to comment Share on other sites More sharing options...
pierrecoulombe Posted February 28, 2012 Share Posted February 28, 2012 Allo Guillaume, What price should I pay for the extruded aluminium? Pierre Quote Link to comment Share on other sites More sharing options...
nismo_zxt Posted February 29, 2012 Author Share Posted February 29, 2012 Hi Pierre, Not too much... $10.00 to $12.00 per ft. Here's a good link for those extrusion. Ross Machine Racing Quote Link to comment Share on other sites More sharing options...
kaito Posted February 29, 2012 Share Posted February 29, 2012 Ross machine racing is where i got the stuff to make my rail. I also bought the special drill bit for 14mm oring injectors. Good tool to have even though it was $155.00 Quote Link to comment Share on other sites More sharing options...
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