Help with fuel system design for LS1 install

[solidaxel]

Originally Posted by jamesjones

How about a Walbro 400? I don't need it now but plan on going FI in the future and would like the headroom.

Is a Walbro pump better and cheaper than a stock 2002 Camaro in tank pump for a 5.7?

[jamesjones]

Originally Posted by solidaxel

Is a Walbro pump better and cheaper than a stock 2002 Camaro in tank pump for a 5.7?

It's certainly better, and pretty cheap too...

http://www.ebay.com/itm/WALBRO-F9000...a2cb09&vxp=mtr

[dman1982]

ok I've read this whole thing...waaaayyy confused....im dropping in a 04 5.3 into a k10, already got the sending unit and the fuel pump, and just ordered the corvette filter...do i need a regulator?

[LS-K]

Dman

That corvette filter is a dual purpose filter. It filters and regulates the fuel. No need for a separate regulator.

[dman1982]

Awesome!!!! Thanks buddy...I'm not really getting discouraged but I got a good deal on my motor and tranny...but when I pulled off my diff cover and was missing a bunch of teeth on my spider gears lets just say that put my over my budget some...so I can go ahead and get rid of all these old fuel lines?

[dman1982]

this was one of my biggest worries about doing this swap...is there any way to hook up the fuel system without flaring tools or soldering? just easy connectors and what not?

[dman1982]

holy cow i havnt felt like such a dummy in a long time!!!! maybe i should have saved some face and stayed old school lol

[dman1982]

since I'm switching out this whole fuel system anyways should i take out the old lines? is there any way to hook up the fuel system without flaring tools or soldering? just easy connectors and what not? bueler? kinda hurting here

[truckdude239]

Dman i used compression fittings to an hoses

[dman1982]

Originally Posted by truckdude239

Dman i used compression fittings to an hoses

this may be a rather dumb question...but what do you mean by compression fittings?

the reason i ask I'm new to this swap and this fuel system...and I've dealt with a bunch of different fittings

[dman1982]

Originally Posted by laynrockers

Ok hoping to bring this thread back to life..

I have a shopping list of the following (see attached picture)

Now what fittings do i need to connect to the SS hose? and How do i make that connection??

so this is what i need for a return less system right? and what are the qty i need for each? and the braided fuel line size? 3/8?

[mooseknuckles]

you can use your old lines from the tank to the regulator/filter and connect it with fuel injection hose, dual clamp it to be sure.. I then ran a -6an line form reg. to fuel rail...all the proper fittings are available, do a search...there are tons of threads on this.

[dman1982]

i seen a bunch, it just get confusing trying to go through the return less and return systems, kinda a dumb question but another thing that confuses me is i have three lines coming off my sender, then only two go into filter one leaves the filter to goto the fuel rail, what is done with the third line on the sender?

[mooseknuckles]

Originally Posted by dman1982

i seen a bunch, it just get confusing trying to go through the return less and return systems, kinda a dumb question but another thing that confuses me is i have three lines coming off my sender, then only two go into filter one leaves the filter to goto the fuel rail, what is done with the third line on the sender?

biggest line is supply, then return and other is vent...some have 4, with the fourth one being for charcoal canister crap...just take your time, do some research it's all pretty simple, just overwhelming at first...

[dman1982]

Originally Posted by mooseknuckles

biggest line is supply, then return and other is vent...some have 4, with the fourth one being for charcoal canister crap...just take your time, do some research it's all pretty simple, just overwhelming at first...

very overwhelming is more like it!!!!

[gearjammer80]

Can I use a 2000 silverado fuel pump in a 90 blazer tank, what kinds of modification is needed if so?

[1980c-10 mybaby]

if ive got a 99 lm7 5.3 motor which has a feed and return built into the motor do i have to run the return all the way from my fuel rail back to the tank(leaving 1 port open on the regulator) or can i run in back to the regulator(3 ports used) and just have the feed come from the tank????

read this whole thing and have not found and answer yet.

[ls1nova71]

Originally Posted by 1980c-10 mybaby

if ive got a 99 lm7 5.3 motor which has a feed and return built into the motor do i have to run the return all the way from my fuel rail back to the tank(leaving 1 port open on the regulator) or can i run in back to the regulator(3 ports used) and just have the feed come from the tank????

read this whole thing and have not found and answer yet.

By "regulator" I assume you mean Corvette filter/regulator? If so, don't use that. You don't need a $50 filter with a return style rail. Run the feed from your pump, through a regular fuel injection rated filter to the rail, and then the return to the tank, simple as that, and a lot less costly.

[yossarian19]

^ What he said.
The C5 filter / regulator is NOT the part you want when using the return-line style engines. That is for the second run of LS stuff with the "returnless" fuel rails.

I used an LS1 Camaro fuel filter with my return-line type LS swap. Annoying to plumb without resorting to AN fittings but it can be done cheap and, I'm sure, with AN it's easy.

[1980c-10 mybaby]

ok perfect thanks guys i just wanted to make sure i was going about the fuel system thr right way. i guess ill run external fuel pump also. you guys running to the pump off a switch or ignition? im planning to have to rewire the entire burban when i get it anyways.

[brossow]

Originally Posted by 1980c-10 mybaby

ok perfect thanks guys i just wanted to make sure i was going about the fuel system thr right way. i guess ill run external fuel pump also. you guys running to the pump off a switch or ignition? im planning to have to rewire the entire burban when i get it anyways.

If I ever get back to my project (on hold for four years now) I'll be running it off the ignition, but wiring in a convenient but hidden switch is a cheap theft deterrent.

[Mjminino]

Originally Posted by ls1nova71

1987 Chevy truck. Its a bolt in tank for '73-'87 trucks, but sinceGM switched to fuel injection in '87, its set up for an in tank pump with the correct baffling to keep starvation issues at a minimum.

What tank/fuel set up do people use for a 64 C10?

[Badcompany21]

im swapping a 03 5.3 with return style lines in my 64 is anyone using a inline pump and the factory in the cab tank? If so how did you run the return line into the tank
thanks

[Badcompany21]

Originally Posted by Mjminino

What tank/fuel set up do people use for a 64 C10?

SMALL WORLD

[twp1]

has anyone used the "fuelcellguy" to build a tank? how did it work?