FINALLY.. i found a fitting to turn the STOCK Fuel rail to -6an no problem!!!
 

https://static.summitracing.com/glob...07691erl_w.jpg

Come in 12X1.25 and 12X1.5 threads...

My buddys been wanting to change over to stainless braided lines, but i have a freakin custom primary rail designed for -an lines.. stumbled on this today.. couldn't find it before!!!!!!

can't remember if the stock bolt is 12x1.25 or 12x1.5... Anybody know!!!

cool! Links man Links! :)

Sorry... It's an earls fitting from summit 18.25

Stock size is 12x1.25

I think this will get you there!!!!

http://store.summitracing.com/partde...=KeywordSearch

I'm confused, why would you need to use this? I'm using -6an size lines and fittings with the Earls adapters for the fuel rails. Bottom of this page http://www.fc3spro.com/TECH/MODS/FUEL/fsystem.htm .
-John

I'm confused as well. Both Russel and Earls make an assortment of metric adapters for -6 AN. You need M14 x 1.5 for two of the connections, M12 x 1.25 for another, and then you can tap the secondary rail for either M12 x 1.5 or (better) M12 x 1.25 (closer thread pitch, more bite in fewer threads). Then use standard fittings...

Ummmm...

I feel kinda dumb now...

.... dunno why he kept asking me about 6-an banjo fittings with the stock thread size..... Other than maybe its cheaper than buying the adapter and the hose end..

I think it might be slightly cheaper, or perhaps the same price.

Turns a sharper angle, which might be useful. Banjo bolts don't flow as well as striaght-thru designs though. Might be an issue on high flow rate setups.

wow very cool! I've never seen that on fc3spro before! I'm going to do this with my rebuild. Anyone that has done this before, how much does this cost in total and did you replace the lines all the way back to the gas tank with stainless lines?

Banjo bolts are a compromise design.
If you got no other option, go with the banjo bolt.
If you can use the straight adapter, I'd recommending doing so.


-Ted

Part number or link please? I can't find it!

I have always used the the 12mm x 1.25 -6an that comes with the aluminum crush washer on the fpr side. (if memory serves me, it's been awhile) Should be a direct fit.

Its found here for 6.95

http://www.anplumbing.com/shop/index...&dept=Aluminum

you say stock fuel rail...but which one??? s4n/a, turbo, s5???? this looks simpler than buying diff. assortment of fittings for runnin a FPR...

I think he's talking s4 secondary fpr side

This wouldn't work with the S5 as the ends of a S5 fuel rails are welded.

holy cow !!! the s4 actually has a benifit over the s5 ??? bout time !!! great find !! added this to my list of needed parts!!

+1

exactly, but I cant find the steel fitting so I can weld them in.


Edit: I think I found them

http://www.sweetperformance.com/cart...3abf7a95cd4909

male/steel correct?

http://www.cvproducts.com/cv/product...=340&genCat=95

S4 has many benefits over S5. The threaded fuel rails is only one of many. :)

Now, for S5 rails there are several choices:

1. Cut factory ends off, weld on new fittings. Can be tricky if you don't have a source of steel AN/flare fittings (hint: hydraulic store)

2. Cut off factory ends, braze on standard aluminium AN/flare fittings. Easily done with no special tools, and aluminium fittings are easy to find at any speed shop.

3. Retrofit S4 rails. There are some fitment issues as I think the primary fuel rail is taller and thus hits the manifold runners. Also the secondary fuel rail doesn't fit at all.

4. Make new fuel rails. It's not as difficult as it sounds. You can use a pice of square tubing, make injector bungs yourself (drill press and round bar) or purchase them, and then weld on the fitting of your choice (you can even get NPT bungs and then use the easy to find AN - NPT adapters).

im right there with ya aaron..of course prob. cause i own one...you and i both know how the critics are in here about the difference's......:) he talked about thread sizes...whick one is for the s4 exactly...i searched and got a bunch of runarounds about it...

Sizes are covered on the 1st page of this topic. I posted about 3 or 4 replies from the top.

just purchased 4 of them. Hope I ordered the right part

http://www.cvproducts.com/cv/product...3116&genCat=95

Hey, I'd like to hear a little more detailed info on this method! Is there a write-up somewhere?

I don't know of any writeups on this forum, but I think the SDSEFI site has one...Let me see if I can find it.....


*goes off to Google for a few minutes*

Got one: http://www.sdsefi.com/techrail.htm

I'll be attempting to convert my S5 secondary rail to steel weld bungs soon, hopefully this weekend. I'll post pictures and information afterwards.

I just ordered half of the parts yesterday, should arrive tomorrow.