jimmyg

Trying to build a decent fuel system for my buddies c10 turbo truck. We are using the Aeromotive stealth dual 340 set up. I wanted to do everything in teflon hose but the fittings are outrageous in price. I would like to see what everyone else is using for hose etc. this is for a forged 5.3 s480 run on 93/meth. I realize the 340s might be a little small but it is an easy upgrade to dual 450s. Using Holley dominator with 83lb injectors.
Also going to use the ractronix dual pump harness.

toytech93

iTrader: (2)

If you're looking for quality call Doug at Motion Raceworks for a deal on Fragola fittings.

If you're looking for cheap china fiitings and lines check out http://anfittingsdirect.com/


I've used both and the only problem I've had was with the Chinese PTFE hose. after 3yrs or so the outer rubber will dry crack and start flaking off.

MY_2K_Z

iTrader: (1)

Go to a local hydraulic shop and have them make up your fuel lines with jic fittings.

jimmyg

I saw an fittings direct. I was wondering How long they take to show up

kingtal0n

iTrader: (1)

A single 340 using a factory 5/16" line (same inner diameter as the outlet on the 340) on 93 can support,

https://www.aeromotiveinc.com/tech-h...th-fuel-pumps/

So if you came to me with an FI V8 in a car that has a single 5/16" feed already in it, and said I wanted to run two of these pumps, I would be tempted to spend $34 at local auto store for some steel hardline, and run a second feed. You flare the end to accept a regular -6an braided hose and hose clamp, which is not only track legal, its cheap, and eliminates error with sizing due to chinese/cheaply made fittings. In short, its a $40 solution that provides OEM reliability to a potentially life threatening problem.

jimmyg

We are shooting for 1000rwhp eventually. I was actually thinking of 1/2 aluminum fuel line then switching over to braided.

kingtal0n

iTrader: (1)

700 per 5/16" line is 1400hp which should clear 1000rwhp

IMO nothing beats a factory steel hardline. I know it doesn't feel race carish or difficult and expensive to put in, It just does its job of going 200k miles and still being right where it was when it was.

truckdoug

iTrader: (25)

i went with a dual -8 from the pumps feeding 1/2 aluminum line. I wish I had gone -10 for a one and done approach.

aluminum line is great, but use a bulkhead fitting on each and and p clamp it every 20" or so. flex will fatigue it, especially at the flared part so a bulkhead fitting thru a bracket mounted to the frame is a good idea.

Game ova

Those 340s are MORE than plenty on 93. Can still make 800+ even on e85.

jimmyg

I think I'm gonna do -10 off the pumps to a y then -8 to each rail. Out the back of the rails into the reg, -8 return. Lotta deals on eBay for good quality hose people had left over .found 10ft -10 aeroquip for $35 .deals like that paired with an fittings direct @$7 a fitting won't be bad.

Suncc49

Hands down best place I have found is Performance Dynamics Speed Shop stuff out of Virginia.

www.getfast1.com

jimmyg

Sounds about right. 2 5/16 lines is about the size of a -10. I hear you about the steel lines but by the time you tie 2 pumps into it ,then a filter, then into each rail , then the reg etc. it's just easier to go teflon. The fittings are pretty easy from what I remember.

MY_2K_Z

iTrader: (1)

https://www.discounthydraulichose.com
Have them make your lines in Ptfe with JIC (same 37* flare and thread as AN) fittings.
They are rated to 2000psi, to me it's worth the extra piece of mind for the $80-90 to have them professionally made.

kingtal0n

iTrader: (1)

I agree I would never trust any cheap fittings on the fuel or oil side of things in a car I care about or need to rely on. Having them made by that machine that crimps the connection done by the same guy 1000 times per day for 1000 of other higher pressure applications... much better idea than doing it yourself with some $5 ebay crap.

jimmyg

I saw the jic fittings. I never realized they were the same as an. Thanks for the info I will check it out.

truckdoug

iTrader: (25)

fragola is made in the usa. thats what performance dynamics sells.

the design has been proven for many years and is very reliable in the hands of someone with two functioning brain cells to rub together.


note that JIC and AN specs are not the same. They both share the same 37* flare but the class of the thread fit is looser on JIC fittings.

I haven't seen any problems with the chinese AN stuff, but I know I can trust the fragola stuff not to leak.

jimmyg

Ya that's what I used on my car, fragola realstreet. The Chinese ones are just a copy of them I think. See the trouble started when my buddy called summit and they quoted him the aeromotive stuff. It was around 1k lol. Just 1 y fitting was $90. Fuel filter $125 etc. I sent him an aeromotive diagram that had most of what we needed for fittings on it, so that's what they tried to sell him.

WTF?

I use tubing and Bundy fittings from Amazon for all my builds. Dirt cheap and work so well that the factory puts them on everything. I use 98 corvette fuel filters and just clip everything together.

kingtal0n

iTrader: (1)

We have to be careful with circular area, pie * radius^2
a 5/16" has a radius 5/32 which squared is .0244, when multiplied to pie is .0766 square inches, so two together have combined .153 square inches of area,

next I will assume -10AN is equivalent to 9/16 or 9/32" radius hardline, .248 square inches of area, almost like having four 5/16" hardlines lines it looks like.

MY_2K_Z

iTrader: (1)

JIC threads aren't held to tolerances like AN threads are, that doesn't mean they arnt as good. They are the standard in most industrial applications under 5/10/20 thousand psi. Most Chinese an fittings are just jic fittings. JIC fitting DO work with an fittings. And unless your "AN" fitting has a mil spec number on it it's not AN it's a jic they are selling as AN because the car guys really like ANs for some reason.