82streetracer

iTrader: (1)

Summit racing sells 18 in universal fuel rail for like $25.
1/2 in diameter, so it should flow fine.

Im already using a AN fuel setup and 1600 secondarys, any reason why I shouldnt just make my own rail from these.

seams pretty cheap vs. Rx7 store rails

http--store.summitracing.com-search.asptype=bykeyword&searchtype=both&part=univ ersal+fuel+rail

setzep

I don't see a reason not to make them except what's wrong with your FC rails?

82streetracer

iTrader: (1)

well the standard secondary rail cant handel 1600s, plus I dont have the experience or exquipment to bore and modify the stock rails for AN fittings.

$25 for a 18in rail, and a $7 1/2 tap, drill for the stock primarys and the 1600 secondarys, and fab up mounts.
im guessing that there is a specific way to drill them for a injector to seal right. I have a nice drill press so it should be cool.

anybody know how to properly drill them. I think I have it figured out by looking at the stock S5 rails.

wahlahhh, custom fuel rails for about $35

should look really clean too vs, the sort of brown color of the stock rails.

Sponge Bob Square Pants

I agree and support what you are doing 100% 82streetracer

jspecracer7

I made my own fuel rails for my cosmo 13B re project. You definitely need a drill press to do the job right.

RETed

I guess it'll be free-floating and not leak a single drop of fuel.

Seriously, you need to spec the height and add brackets so that everything will stay in place.  You're paying for the R&D for all of that in a "drop-on" kit.  I guess you have access to a TIG welder to get this all fabbed up?


-Ted

jspecracer7

What type of fuel lines will you be using? - 6/8/10? I used 1/4 npt to -6 AN adapter for the ends of the fuel rail for my cosmo stuff. 1/2" npt normally correspond to -10 AN doesn't it? That's what I'm using for my oil cooler lines

82streetracer

iTrader: (1)

Im planning on 6an for most of the system.

Im looking at the summit catalog right now.

1/2 usually goes to 10an. There are some 8an to 1/2,

damn, I could run 8an from the rails to the regulator and the Y block. and 6an from the y block.

setzep

-8 = 1/2" 8/16 of a inch is 1/2

streetracer- why don't you just buy adapter fittings for your FC rail? It's the aluminum style right with the banjo fittings?

Hey jspecracer, you don't have a extra set of those rails laying around do ya?

82streetracer

iTrader: (1)

no, I have a S5, its one peice and It is bronze in color.

Can I just convert to the s4 with 1600s? what would I have to drill?

BASTARD

iTrader: (4)

you can buy steel A/N weld on fittings for cheap from EARL's...I bought four -8 aluminum ones and had a welder weld them on for 35 bucks...I am going to run -8 to the fuel pressure regulator and then reduce it to -6


http://www.holley.com/HiOctn/ProdLin...A/f997103.html

setzep

That is what I'm going to do.... weld on fittings. The Cosmo rails are stamped steel with hose barb connections I'll just cut the ends off them and TIG on some -6's

jspecracer7

Thats what I had planned on doing, but I didn't get them TIG welded....that **** amazed me! I've never seen a rail get WET without squirting I primed the pump, and the rail went from dry to having surface gas on it....pretty scary stuff.

rotarygod

iTrader: (1)

You don't need to modify the rails at all to install 1600's. You just need to modify the injectors. I did mine in only a few minutes with a dremel. Give BDC a message. He has pictures of what needs to be done. It's easy.

frode

Here is some info on fitting 1600's in the original fuel rails.

http://home.mn.rr.com/linnihan/1600c..._injectors.htm

rotarygod

iTrader: (1)

Yeah, that's it.

Trav

here is the corrected link.
http://store.summitracing.com/search...rsal+fuel+rail

btw, good luck w/ this. I've often thought of doing this myself but was hoping for some other "experts" to do it first.

82streetracer

iTrader: (1)

do the s4 rails flow enough for 1600 injectors??

$150FC

yeah. Carx7 made 460rwhp with the stock rails, is that good enough for you?

Crusader_9x

s4 rails bolt right onto a s5. or at least they bolted right onto my car. i used reteds -6 parrallel setup pic to do mine.

surfpac

Did you use the stock pulsation dampener? Did you have to weld on -6 An fitting? or is there one that can screw into the stock rails. Thanks for the advice guys, this is very good info.

82streetracer

iTrader: (1)

I think you can screw them in on s4 rails.

Thanks for the info, anybody got a s4 rail to sell.

Crusader_9x

do a search in the 2nd gen section and u will find all the info u need. i used all screw in adapters. my fuel line is -6 parrallel from the fuel filter to my aeromotive fpr and then factory returns.

82streetracer

iTrader: (1)

alright, I got my new s4 fuel rail and the AN adapters per Re-Teds website.

they fitt just fine, but I think I need to drill them out.

Two of them reduce the diameter down to about HALF of the normal 6an on the secondary rail. Their special delleroto adapters or something.

Any reason I shouldnt just drill these out.

Im going to attach then to 1/16 steel with a bulkhead nut and drill it with a drill press.