So I have been working on a fuel rail for a fellow org member. I have talked to a few machine shops, and have a few ideas. I'm probably going to start to ramble....
So here are some of the basic design points:
Solid Billet fuel rail made from T6-6061 Aluminum.
Have both ends be -6an fittings....or one end -6AN and the other bolt directly into the stock feed-line.
Have the port for the Fuel Pressure Regulator remain in the stock location or just use a -AN port for an external FPR. It would be quite a bit cheaper to not include the stock fuel rail port for the FPR and use the end for the FPR and return line......
I was thinking of having the injector bosses removable. Have them screw into the main rail so people could order whatever length they need for what ever injectors they want. This would eliminate the need for spaces between the injectors and the fuel rail in certain applications. These would probably end up being -6AN ports / 9/16"-18 SAE ports with a small adapter for the injectors to fit into.
Most of the machine shops want a two piece rail so the do not have to bore so deep. Two injectors per main rail part. This is differently a cheaper option, but I'm not to sure how I feel about it.
These are the main points. I'm open to ideas or suggestions.
Prices depending on design are ranging from $150-300 for about 20-25 rails.
If I get time I may upload some Soildworks or AutoCAD pics to help explain everything better.
Edited 2 time(s). Last edited Friday, December 02, 2011 2:00 PM
PRND321 Till I DIE
Old Motor: 160whp & 152ft/lbs, 1/4 Mile 15.4 @88.2
M45 + LD9 + 4T40-E, GO GO GO
in for images to see what you means! would def love a other the stock rail that would make adding SS braided lines easier and need less fittings.
I would be interested....just for the "bling" factor.
I would want some way to use the stock regulator.
Not into the 2-peice rail one bit, and not to sure on the removable bosses. The idea is great but I suppose I always worry about leaks when it comes to things like fuel.
A built in port for a fuel pressure gauge would be a great addition as well.
Have you thought about using:
http://rossmachineracing.com/dash10.html
To help with not having to bore it out?
This is more what I was thinking of...
Click Me
Thanks for the link though.
Edited 2 time(s). Last edited Friday, December 02, 2011 2:33 PM
PRND321 Till I DIE
Old Motor: 160whp & 152ft/lbs, 1/4 Mile 15.4 @88.2
M45 + LD9 + 4T40-E, GO GO GO
Yah..wasnt to sure on size just sharing the extrusion....quite economical.
you know im in
RIP JESSE GERARD.....Youll always be in my thoughts and prayers...
thats cuz its yours a hole!
What about getting a small run of them done in injection molded plastic? There are places that will do small runs of injection molded part. I'd much rather have a low-heat conductive plastic fuel rail than a highly conductive aluminum one.
1994 Saturn SL2 Home Coming Edition: backup car
2002 Chevy Cavalier LS Sport Coupe: In a Junk Yard
1995 Mazda Miata R-package Class=STR
Sponsored by:
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WPI SAE Risk and Sustainability Management Officer
BuiltNBoosted wrote:thats cuz its yours a hole!
why the hate broz lol
RIP JESSE GERARD.....Youll always be in my thoughts and prayers...
Leafy (Club Jeffie FEA man) wrote:What about getting a small run of them done in injection molded plastic? There are places that will do small runs of injection molded part. I'd much rather have a low-heat conductive plastic fuel rail than a highly conductive aluminum one.
Leafy, I assume you have never had a small run injection molded part done.........Yes piece price is nice, but the tooling would push prices well into the $750 or more range for the few I'll actually sell. Last time I had a batch of 50 parts made of similar volume of plastic for work, "nylon 6/12 with 43% glass and mineral fill", the part cost was $50 each, but the tooling was $7500.
PRND321 Till I DIE
Old Motor: 160whp & 152ft/lbs, 1/4 Mile 15.4 @88.2
M45 + LD9 + 4T40-E, GO GO GO
No I havent had it done. I did look into it, though the part I looked at was significantly less intricate than a fuel rail, the tooling was going to be under 2 grand.
1994 Saturn SL2 Home Coming Edition: backup car
2002 Chevy Cavalier LS Sport Coupe: In a Junk Yard
1995 Mazda Miata R-package Class=STR
Sponsored by:
Kronos Performance
WPI Class of '12 Mechanical Engineering
WPI SAE Risk and Sustainability Management Officer
Anyone want to venture a guess what the stock one is made of? . ..........point made.
Nuff said
Ever touched yours after you've run? Its very hot, thats making your fuel very hot, which is taking a bit of power away.
1994 Saturn SL2 Home Coming Edition: backup car
2002 Chevy Cavalier LS Sport Coupe: In a Junk Yard
1995 Mazda Miata R-package Class=STR
Sponsored by:
Kronos Performance
WPI Class of '12 Mechanical Engineering
WPI SAE Risk and Sustainability Management Officer
I'd like to say that amount of heat is negligable. I like my parts made from metal.
bump for updates on the "billet" Rail
RIP JESSE GERARD.....Youll always be in my thoughts and prayers...
I would be interested, but for some reason my 03 sunfire has the 02 fuel rail and injectors :/
Philly D wrote:I'd like to say that amount of heat is negligable. I like my parts made from metal.
agreed. Id like to think I have bigger issues with heat more than the fuel rail. Especially since the fuel is rarely in the rail long enough for the temp to be insane.
MD, if you come up with a poly extruded block and head, let me know!
I have pondered the benefits of an upgraded rail. Obviously after a certain horsepower level is would be necessary.
Random tired thought......what would it cost to have the stock rail extrude honed and tapped on the end for the return line?
I should have more updates on this next week. When I actually have some time to work on it again.
PRND321 Till I DIE
Old Motor: 160whp & 152ft/lbs, 1/4 Mile 15.4 @88.2
M45 + LD9 + 4T40-E, GO GO GO
I need to finish this! Sorry Jason.
PRND321 Till I DIE
Old Motor: 160whp & 152ft/lbs, 1/4 Mile 15.4 @88.2
M45 + LD9 + 4T40-E, GO GO GO
whatever happened with this
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24th MEU VMM-261 (REIN) V22 Crewchiefs
11 April 2012 Morocco (African Lion)
I had two machine shops...look at it. Neither wanted to be bothered. I sent it to another local shop, and I'll be sending to a fellow J owner in New York to look at making it. The one machine shop that kinda looked at it said $600 a piece. I laughed and left.
PRND321 Till I DIE
Old Motor: 160whp & 152ft/lbs, 1/4 Mile 15.4 @88.2
M45 + LD9 + 4T40-E, GO GO GO
Didn't OEM make some rails for us at one point?
