LSX swap fuel system what ya got

[woodwright]

With so many of us doing LSX swaps, and all the different ways to do the fuel system, it can get kinda overwhelming. How about a thread like the "LSX swappers what ya got" thread? Maybe the mods can make it a sticky.

Vehicle
Engine
Fuel tank
Fuel pump
Fuel lines
Returnless?
Build thread
Running?

Then maybe a little about how you like it. And if the mods are ok with it, maybe some prices if you want. Thanks.

[akdg87]

Vehicle: 1956 3124 cameo 2wd
Engine: single turbo 5.3 with ls1 intake
Fuel tank: summit 18 gallon sumped cell behind rear axle
Fuel pump: inline bosch 044
Fuel lines: 8 an feed and 6 an return
Fuel rails: holley efi
Filters: inline 8 an "100" and "40" micron
Injectors; siemens deka 60#
Return-less: yes through a 1:1 boost reference FPR
Build thread: see below
Running: more than likely by the weekend

[woodwright]

Thanks akdg. Guess I'll do mine.

Vehicle 70 GMC C10 Suburban
Engine 02ish 5.3
Fuel tank Stock tank modified
Fuel pump 04 Silverado pump module
Fuel lines 04 Silverado stock lines modified to fit
Returnless? No
Build thread "Bertha" below
Running not yet

[First c10]

Thought I would add mine also

Vehicle. 1970 c10 custom deluxe
Engine. 2011 5.3 LC9 w6L80
Shifter. Lokar shifter cable assembly. Customized
Fuel tank. Relocated to rear Blazer tank
Fuel pump. MSD
Fuel lines. -6 AN
Returnless? Yes. With corvette filter/Regulator
Exhaust. Shorty stainless header from eBay
Mounts. ECE mounts motor and trans
Build thread. Have a lot of pictures but have not had a chance to set up one
Running? Started to make sure all the wiring was good to go. So now putting frontend back on.

[Super73]

Vehicle 63 C10
Engine 418ci LS3
Fuel tank 16 ga fuel cell
Fuel pump Weldon 2035
Fuel lines -12 to pump.. -10 to rails.. -4 from rails to A1000 regulator.. -6 return
Returnless? no
Build thread in the racing section
Running? Yes, numbes in sig

[Matt Cramer]

Here's my current setup.

Vehicle: 1972 C10 longbed
Engine: 2007 LR4 4.8
Fuel tank: Stock in cab
Fuel pump: Walbro GSS342 stuffed into the stock tank using a kit intended for turbocharged '94-'97 Mazda Miatas.
Fuel lines: Mostly stock with new rubber.
Returnless? No. Converted to return type with earlier fuel rails / regulator.
Build thread: http://67-72chevytrucks.com/vboard/s...d.php?t=592021
Running? Yes.

This was a setup to get things up and running quickly. It accomplished that, but long term, I think I'd like to move the fuel tank under the bed. Even with new rubber fuel lines, I can't seem to get the smell of gas completely out of the cab, I suspect NHRA tech inspectors will hate this setup, and having a fuel pump sitting right behind me is seriously loud. (On the other hand, so's an exhaust with 40 series Flowmasters and no cats, so you only really notice it on startup. But for a more civilized truck, this would be seriously annoying.)

[faribran]

Would you post up pic of fuel cell, plz

[Wasted Income]

Vehicle 1972 K/5 Blazer
Engine Turbocharged LQ4
Fuel tank Fuelcell guy sumped 23 gallon aluminum
Fuel pump Fuelab 41402
Fuel lines -10 split to dual -8 at the fuel rails.
Returnless? Hell no. Boost!
Build thread http://67-72chevytrucks.com/vboard/s...d.php?t=529064
Running? Yes

Works great with E85.

[JJH Jimmy]

Vehicle: 1972 GMC Jimmy 4x4
Engine: 2003 5.3 l59
Fuel tank: Custom Stainless Steel Tank w/ Tanks Inc. Fuel Pump Hanger
Fuel pump: In Tank Walbro 255
Fuel lines: 3/8" Stainless Steel hard tube and Swagelok fittings from tank to back of engine, Russel Proclassic hose and AN fittings from hard line to fuel rail
Returnless?: No
Build thread: In Signature
Running?: Running - yes. On road - not yet.

[Clyde65]

Here is mine

Vehicle: 65 C10 SWB
Engine: 2005 4.8/4l60e with 02 DBC intake.
Fuel tank: Boyd's bed fill, 19gal
Fuel pump: pierburg
Fuel Lines: -8/-6 return, Russell fittings and braided hose
Returnless? No
Build thread: none
Running? He'll yes! About 6k miles- completed in mid 2010

[99RegalGS]

Vehicle - 71 C10
Engine - 2003 LM7 with a 4L60E
Fuel tank - Factory in cab, with return line added to sending unit.
Fuel pump - Walbro 255lph inline mounted on frame rail.
Fuel lines - Factory engine fuel lines, then bent new lines to tank.
Returnless? - No
Build thread - None
Running? - Yes, around 2,500 miles so far.

This setup it pretty quiet. You can only hear the pump when it primes before starting the engine.

[akdg87]

Originally Posted by Wasted Income

Vehicle 1972 K/5 Blazer
Engine Turbocharged LQ4
Fuel tank Fuelcell guy sumped 23 gallon aluminum
Fuel pump Fuelab 41402
Fuel lines -10 split to dual -8 at the fuel rails.
Returnless? Hell no. Boost!
Build thread http://67-72chevytrucks.com/vboard/s...d.php?t=529064
Running? Yes

Works great with E85.

Wasted Income: is your tank sumped and gravity fed to the pump?

[Wasted Income]

It's gravity fed as long as the fuel level is above the pump...lol. There is a "sump" in the bottom/rear of the tank, but not quite in the traditional sense.

[akdg87]

thats how i have mine setup, i thought it was giving my some fueling issues but turns out its in the tune.

[Roostboy102]

Vehicle - 72 C10
Engine - 4.8
Fuel tank - Factory
Fuel pump - Walbro inline
Fuel lines - EFI Hose
Returnless? - No
Build thread - http://67-72chevytrucks.com/vboard/s...d.php?t=515425
Running? - Yes!

Not that impressed with the rubber hose and clamps, but my brain about exploded trying to figure out how to do the fuel lines, and it still hurts when I think about improving it. Trying not to spend $400 on fuel line also!

[mcmlxix]

Vehicle 1972 K5 Blazer
Engine 2005 LQ9 6.0L
Fuel tank Custom with www.vaporworx.com parts
Fuel pump GM fuel pump module GM# 19167467 or FG0340
Fuel lines Custom 3/8 hard line to AN6
Returnless Yes
Build thread Link in signature
Running not yet

[chuckmc8]

Vehicle 1971 2WD Blazer
Engine 2004 5.3
Fuel tank Stock Blazer
Fuel pump Airtex 2000 (Advance Auto) mounted on frame
Fuel lines Mix of AN and Steel
Returnless Vette filter with regulator
Build thread Dont have one
Runs great
__________________

[69trk]

1969 cst

2002 5.3 built

Aluminum fuel cell between the rails

Aeromotive A1000 10an feed to both rails with a 8AN return off a holley reg.

s475 Turbo build in link

Not finished.. "Broke" lol

[SierraMtns]

Cool thread.

Has anyone used a Boyd tank with a stock GM intake pump?

Thanks

[Clyde65]

Replied to your PM

[Qwk]

Vehicle 87 Square
Engine LS1 w/SC
Fuel tank Stock
Fuel pump Racetronix 340lph
Fuel lines -8 feed, -6 return w/Flex fuel sensor
Returnless? no
Build thread Link in my Signature
Running? yes it is! SC LS1 w/T56 is a Blast to drive!

[Narxoleptic Customs]

Originally Posted by Qwk

Vehicle 87 Square
Engine LS1 w/SC
Fuel tank Stock
Fuel pump Racetronix 340lph
Fuel lines -8 feed, -6 return w/Flex fuel sensor
Returnless? no
Build thread Link in my Signature
Running? yes it is! SC LS1 w/T56 is a Blast to drive!

How bad is the fuel pump noise with it behind the seat? I will have the same pump. I intend to dynamat the tank while i am having the seat recovered. Mine will be an almost daily driven truck

[dec010974]

@Narxoleptic Customs, I'm using a fuel sending unit from a 1987 r1500 c10 with fuel pump ep381 and I barely can hear the fuel pump run.
The

[Big Port Jimmy 6]

Vehicle 87 GMC 2500 Crew
Engine 01 DBW 5.3 4l60E
Fuel tank stock dual tank set up with switching valve
Fuel pump (2) ebay Walbro knock offs
Fuel lines Weatherhead H10106 and H10105
Returnless?no
Build thread no
Running? 35k miles

[ls1nova71]

Originally Posted by Narxoleptic Customs

How bad is the fuel pump noise with it behind the seat? I will have the same pump. I intend to dynamat the tank while i am having the seat recovered. Mine will be an almost daily driven truck

An '87 squarebody doesn't have a tank behind the seat. But if you intend to put one in a 67-72, it will be noticeable. I would suggest a good stereo to cover up the noise.