• Fuel injection hose for external routing has an SAE 30R9 rating for continuous & pressurized flow use.
This is not the same rubber fuel hose as used on carbureted applications:
http://www.gates.com/europe/brochure...cation_id=2958
http://acdelcotechconnect.com/pdf/tsb/tsb_fuel_line.pdf


• Fuel injection hose for in-tank (immersion) use has an SAE 30R10 rating, which contains a
special compound called fluoroelastomer (FKM), which resists fuel permeation and retards aging:
http://www.gates.com/brochure.cfm?br...ocation_id=541
http://www.napaonline.com/Catalog/Ca...213_0006447045


• The appropriate gasoline resistant thread sealant for fittings
and the like, is Permatex Aviation Form-A-Gasket sealant liquid:
http://www.permatex.com/products/pro...-liquid-detail
http://www.permatex.com/component/do...ket=automotive


• Red (high temp, high strength), blue, purple & green Threadlocker, is also impervious to automotive
fluids such as motor oil, gasoline, brake fluids, transmission fluids, alcohol and antifreeze solutions.
(It's also a great bonding agent for freeze plugs.)
http://www.permatex.com/products/pro.../threadlockers
http://www.permatex.com/component/do...ket=industrial


• Fuel injection type hose clamps (always available at your local auto parts store):

http://www.gates.com/downloads/BarricadeBrochure.pdf (Gates Barricade Fuel Hose)

Quote Originally Posted by Danny Cabral
• Procedure for creating a barbed end on a cut-to-length steel tube:
(Hose doesn't slip over a double-flared end. A barbed end is the proper means of attachment.)
Cut and deburr the steel tube using a tubing cutter.
Assemble line in double-flaring tool, the same way you would if creating a double-flared end.
Compress the double-flare die about way down and stop and inspect the result.
It's important not to let the die tilt on its way down, because we're not going all the way down.
Compress more if necessary to create the desired barb shape. It's visible in the tool.
The end result is a perfect barbed line, ready for slipping on and clamping a hose.

If you don't need to cut (shorten) the steel tube, you can also use an inverted flare union with barbed adapter fitting - no cutting, soldering or flaring:
http://www.plews-edelmann.com/123600-fitting/ (3/8" inverted flare union - Edelmann 123600)
http://www.plews-edelmann.com/produc...-style/821660/ (3/8" male inverted flare, 3/8" barb fitting - Edelmann 821660)
http://www.plews-edelmann.com/clamp-style-rigid-female/ (5/16" female inverted flare, 5/16" barb fitting - Edelmann 841550)
http://www.plews-edelmann.com/assets...ings_90078.pdf (complete catalog)
Quote Originally Posted by Danny Cabral
Fuel Injection applications: 100 micron pre-filter, 10 micron post-filter.
Carburetor applications: 100 micron pre-filter, 40 micron post-filter.
Holley offers billet aluminum filters with stainless steel elements.
The 10 micron filter element is a depth media (paper) type element.
The 100 & 40 micron filter elements are stainless steel woven mesh.
http://www.holley.com/types/Billet%20Fuel%20Filters.asp (Billet Aluminum Filters)
http://www.holley.com/HolleyNews/Bil...ompatible!.asp (E85 Compatibility News)

Also, Earls Performance Plumbing offers Teflon (PTFE) inner lined, stainless steel
braided or Kevlar hose (Speed-Flex & Ultra-Flex 650) for compatibility to any fuel.
http://www.holley.com/division/Earls.asp#17 (Earls Products)
http://www.holley.com/data/TechServi...g%20Basics.pdf (Plumbing Basics)

Earls offers stainless steel & Ano-Tuff Speed-Seal hose ends for their Speed-Flex hose.
Ano-Tuff is MIL-Spec Type 3 hard anodized for excellent wear & corrosion resistance.
Both are impervious to fuel blends, ideal for use with alcohol fuels and marine environments.
http://www.holley.com/types/Speed-Se...ose%20Ends.asp (Stainless Steel)
http://www.holley.com/types/Speed-Se...ose%20Ends.asp (Ano-Tuff)
http://www.holley.com/data/TechServi.../speedflex.pdf (Speed-Seal Instructions)
http://www.holley.com/EarlsCatalog/
(Earls Performance Plumbing Catalog)
Quote Originally Posted by Danny Cabral
The in-tank "sock filter" is actually an excellent pre-filter. I've experienced some problems with that small plastic pre-filter (with external in-line Walbro fuel pump). After experimenting with different options, I found that using a sock filter (just like the OEM in-tank pumps use) was the best pre-filter option. I also drilled out the fuel pump's suction side fitting to allow easier volume. These are the only two aftermarket sock filters I've ever seen for 3/8" pick-up tubes. They're designed for external pumps - perfect for aftermarket EFI systems:
http://www.atlinc.com/pdfs/2014-2015...b-COMPLETE.pdf #TF268 ("Fits #6 Fuel Pick-up" - page 19)
http://www.atlinc.com/index.html

http://www.fuelsafe.com/pdf/FuelSafe...atalog_web.pdf #FP180 ("Fuel Pick-Up Kits" - page 27)
http://www.fuelsafe.com/parts.htm
Quote Originally Posted by Danny Cabral
NOTES:
Since I discussed fuel plumbing aspects, you might find this helpful.
I found some forum posts by Brian Macy (Instructor at EFI University)
that really parallels everything I've done with my own fuel system:
http://www.cpgnation.com/forum/14447-post8.html (pump cavitation)
http://www.cpgnation.com/forum/16595-post8.html (suction side)
http://www.cpgnation.com/forum/17046-post2.html (pump fittings)
http://www.cpgnation.com/forum/10921-post5.html (tank venting)

TIP:
In-tank pumps are great, however, I've never had a single problem with an external in-line pump.
My external in-line fuel pump has never been mounted below the level of the fuel tank.
It's more important to mount the fuel pump as close to the tank as possible, keeping the suction line as short as possible.
Drill the pump's inlet & outlet fittings a little larger, and use the shortest possible suction hose.
My fuel pump has been mounted at the top of the fuel tank for over 12 years and never had any problems.

FYI:
I've never used the ECU's fuel pump trigger wire to directly power the pump (even if it is less than 10 amps).
I've always used a separate relay (shown below) because that green wire is still only 14 AWG.
Also, I use a 2nd fuel pump relay so the fuel injectors aren't subjected to the pump's amp draw.
It's only a 20 amp fuse and it also feeds power to the fuel injectors (& ignition coils - LSx).
I prefer to use 10 gauge wire due to its long length, especially for high output race pumps.
You'd simply use the green fuel pump wire to trigger your additional fuel pump relay.
medium12-753.jpg
http://www.holley.com/12-753.asp
http://www.holley.com/data/Products/.../199R10059.pdf
(relay kit instructions)
Quote Originally Posted by Danny Cabral
Holley EFI Performance Fuel Pumps:
Holley EFI 12-920 fuel pump: 10mm x 1.0 internal threads (Walbro GSL392)
http://www.fuel-pumps.net/walbro-forgeries.html (Buy Holley or other legitimate source.)
http://www.holley.com/991953ERL.asp (Earl's -6AN blue anodized fittings)
http://www.holley.com/AT991953ERL.asp (Earl's -6AN black Ano-Tuff fittings)

I'm a bit skeptical about the high horsepower ratings of this fuel pump.
The pressure it produces can certainly support the horsepower ratings,
however, I doubt the small I.D. of the fittings can support high volume.
If you're anywhere near the limit of this fuel pump,
I suggest Holley's new line of performance fuel pumps:
http://www.holley.com/types/Billet%2...ne%20Pumps.asp (Billet Electric In-Line Pumps)
http://www.holley.com/data/products/...lPumpchart.pdf (Fuel System Selection Chart)
http://www.holley.com/assets/images/...uelSystems.pdf (Holley Fuel Systems Brochure)
http://www.holley.com/HolleyNews/Bil...ompatible!.asp (Fuel Type Compatibility)

http://www.holley.com/data/TechServi...20Injector.pdf (Selecting a Fuel Injector)
http://www.injectordynamics.com/HPCalculator.html
(Injector Dynamics BSFC Guidelines)
http://www.injector.com/injectorselection.php
(Marren Fuel Injection Calculator)
http://www.holley.com/types/Fuel%20Injectors.asp
(Holley EFI Fuel Injectors)

http://convert-to.com/conversion/flo...line-flow.html
(convert gal/hr to lb/hr)
http://convert-to.com/conversion/flo...r-hr-flow.html (convert lb/hr to gal/hr)
http://convert-to.com/conversion/flo...line-flow.html (convert ltr/hr to lb/hr)
http://convert-to.com/conversion/flo...r-hr-flow.html (convert ltr/hr to gal/hr)