New injection fuel rails

[MarioVelotta]

I set out to clean up the engine bay on some injection cars. And thought these would com in handy on turbo cars as well. The entry and exit for the fuel is on the back side so you can stay clear of any intake piping or hot turbo's.



And having a couple rapid prototypes made to check fitment



What do you guys think?

[Piledriver]

Go vertical--- Stack the 2 large bores, bring the injector bores out the side, perhaps at an angle, or offered on a few different angles, you could use a common casting.

There's generally room in that axis, and little to none to go "out" or in..
(on bug installs, anyway)

[Clonebug]

I think they are great.
Wish they were made before I bought the ones I have.....Would have saved me a lot of work with bending fuel line.

[sideshow]

My thought on that was just to run the pressure and return on the chassis, and run a single feed onto the engine. Less hoses on the engine, easier to get in and out even if one had to bleed the rail.

Where did you get the model of the injector?

[foreverska]

I like this idea a lot.

[MarioVelotta]

clone, that's how everything in life is

Sideshow, I was able to find a model on the net

forever, Thanks!

Pile, I don'r really follow. maybe a sketch!

[Devastator]

I have a few patterns made and am almost ready to cast for the first time.
The long bosses sticking out each end are to locate cores. Designing one similar to the style Pile spoke of this week.

[Devastator]

Here are some progress pics too:

[Devastator]

you could use a common casting.

The type modeled wouldn't need cast. They could be machined from solid FWIW.

[Devastator]

Here's a billet set, in use, that I made a few years back for my build.:

[Turbo_Manx_Maniac]

I like the method Devastator uses to fasten the rail down, I was always a bit concerned with the CB stuff that the flimsy L bracket would give way and I'd spray fuel all over the place.

Mario, do you have something specific in mind for a hold down bracket? You could also drill holes in the side for a hold down bracket.

[56speedster]

I like the method Devastator uses to fasten the rail down, I was always a bit concerned with the CB stuff that the flimsy L bracket would give way and I'd spray fuel all over the place.

I like the looks of that as well. Installation looks easy too. I've had to tighten my self made brackets (one of my CB's broke so I made my own) and getting an allen wrench on both of the bolts is not an easy job.

AND....that blue color goes along nice with the rest of my accessories in the engine compartment.

How much for a set just like those Devastator?

[Devastator]

I was always a bit concerned with the CB stuff that the flimsy L bracket would give way and I'd spray fuel all over the place.

I've had to tighten my self made brackets (one of my CB's broke so I made my own) and getting an allen wrench on both of the bolts is not an easy job.

These were the driving ideas behind my design. I don't know how likely the fuel rails are to come off during "normal" driving, but I knew that I never drive my sandrail gently. There is a small problem with my clamping method however. With the fuel rail in place, there is very little room for the injector wire clip. I have designed the cast version of the "L" shaped fuel rails and the "low profile" version to reduce this problem, but will not be able to evaluate their success until I cast a set and check the fit.

How much for a set just like those Devastator?

I'm glad you like those! I sold my extra set to another STF member a few years back, so I don't have any on hand. I still have the CNC programs for them though. One of the things I didn't like about them, that I fixed on the cast design, was offsetting the "elbowed" end of them so that they were an even distance from the fan shroud. If you look closely at my install, you'll see that one is much closer to the shroud than the other. The version I could machine would be identical to the version shown above, ie, without the stagger. PM me for a price as they would be a fairly pricey one off run, especially with anodize, and I've already hijacked Mario's thread enough for one day. Sorry Mario.
FWIW, I hope to sell my cast fuel rails through Mario as I suck at selling stuff.

[Devastator]

Did I mention that my "L" shaped, and "low profile" fuel rails are going to be taped for a 3/8" NPT, instead of the 1/4" NPT that CB Performance uses? Probably be the same on the "similar to Plle's idea" set that I am designing. Also, being a cast aluminum or zinc/aluminum alloy, they will need to be powder coated or painted in order to change the color, instead of anodized.

[MarioVelotta]

Manx, For the standard end castings I have had the brackets made in 1/8" stainless. Thicker than the CB ones. They hold up better. I plan on something different and more like Dev's mount with these new ones. I'm focusing on the IDF manifolds at the moment because I need a set for a project. I've made my files easily scale-able for different length rails as well. I have a meeting with my machine shop tomorrow to go over production.

FWIW here are the current brackets and retainers for the standard rails and manifolds. For standard injectors and small ID1000's without the adapter hat in place.



I modeled the rails with those brackets if I where to try it on the standard manifolds as well. It would be much easier if I used a socket cap screw. Then you could use a ball end allen to tighten the fasteners. Much easier than a standard bolt



And I got the protos today to test fit. Turns out, they are pretty good. Bracket design is next.