Escalade 6.0????

[shifty]

I was told that no matter what you do, get the truck running and registered now, tested and legal, THEN start your swap. I hear most older vehicles (non-ODB1/ODB2) only get the sniffer test. If they never lift the hood during inspections, nobody is gonna know what the hell is in there.

OR if it will be a problem, just convert the damned thing to use a carb and standard intake. There was an article about this in one of the classic truck mags last year. Tells you all the stuff you need. No PCM is required, just a control box that MSD or F.A.S.T. sells (I forget which). I suppose I could locate and scan the article if interest was there, I finally got a new scanner that makes scanning to PDF a snap.

[BigTex]

Originally Posted by shifty

There may be a year limit on this, but trust me, the dozen guys I know doing GenIII swaps on their trucks using truck/SUV motors can't be wrong.

All I'm going to say is - trust me.

Maybe seeing is believing: This is a 2005 intake sitting in my garage (same as the 04). Notice the single connector on the fuel rail and no fuel pressure regulator.

[BigTex]

Originally Posted by Sandemonium

On my '06 LQ4 with 4L80E I have 2 fuel lines (Pressure / Return).

Not sure if it is only because my combination came out of a 2006 full size van, but just wanted to share that there may be instances where you can run into 2 fuel lines.

Bob, are you 100% positive that was the vehicle your motor was removed from? Are you sure thats the intake and fuel rail setup that was originally on your motor? Was it an eBay purchase?

Per GM service manuals for an 04-06 v8 Express VAN: "The Fuel System is a returnless on-demand design. The fuel pressure regulator is a part of the fuel sender assembly, eliminating the need for a return pipe from the engine. A returnless fuel system reduces the internal temperature of the fuel tank by not returning hot fuel from the engine to the fuel tank. Reducing the internal temperature of the fuel tank results in lower evaporative emissions. An electric turbine style fuel pump attaches to the fuel sender assembly inside the fuel tank. The fuel pump supplies high pressure fuel through the fuel filter and the fuel feed pipe to the fuel injection system. blah blah blah..."

[BigTex]

Shifty - This it?
http://www.superchevy.com/technical/...sc_conversion/

[70rs/ss]

Sweet, looks like I only need to run one line, now to get the tank made, hoses run, wiring redone, motor mounts bought, some other stuff..., wow I am tired I better go rest a little!! Sweet, picts don't lie.

[Sandemonium]

BigTex,

I appologize, you are correct.

I did buy this engine off of eBay. The only date (05/2006) I could find was on the wiring harness which was intact.

Attahched are 2 pictures which show the routing of the fuel lines that were supplied with the engine. As of now I have not completed the fuel lines and only assumed that since there were 2 lines, 1 was supply and 1 was return. Upon tracing the lines I have found that 1 was supply and the other goes to the top of the intake manifold with some type of connector.

What is the purpose of this other line?

Again sorry for not knowing what I was talking about........

Bob

[70rs/ss]

Looks like a PCV line? Should go to a PCV valve on the valve cover? I am guessing and I do not have my motor to make sure, so if I am wrong let the stoning begin!

[BigTex]

Thats a nice motor bob. Very clean! You wouldn't want to sell it and that beauty of a transmission with it would you?

That extra line is for the EVAP cannister. Its the small cylinder mounted to the intake just behind the throttle body. You can see its green cap in the upper left hand corner of the first picture. The EVAP is an emissions device to control pressure in the fuel tank. Excess gas fumes are purged into the intake by that solenoid. It keeps pressure regulated while keeping everything sealed up from the outside world.

[Sandemonium]

I think I got a good deal on this motor and trans. From what I was told and the documentation that came with it the motor and trans has about 3 miles. By looking at it, it looks brand new.

In the attached picture you can see where the line terminates. There is no canister, but what looks like a large schrader (sp?) valve.

Do I still need this?

Thank you again...

[BigTex]

Yes, that is your EVAP. Do you need it? Well.... not really. You could program out the EVAP functionality from the PCM and turn off any trouble codes that might apply. If you were required to meet current ODB2 emissions diagnostics, it would count against you. I don't think you'd have a problem though. If you remove it, you'll need to plug the hole it leaves in your intake.

[LUV2XCLR8]

<------ Is jelous of engine swaps

[Sandemonium]

Since the harness I will be purchasing will not have most of the emissions related wiring I guess I will not be using EVAP.

Is there any downside to not using EVAP for this setup?

Any ideas on how to plug up the hole once the EVAP module is removed?

Thank you all for your help and sorry for hijacking the thread.

[texanidiot25]

I believe it lowers fuel economy a tad. Thats the one side-effect I know of.

[Longhorn Man]

if it is sucking fumes outta the tank, then it would *theoreticly* improve MPG.

[68 short step]

Originally Posted by texanidiot25

I believe it lowers fuel economy a tad. Thats the one side-effect I know of.

thats a negative........ its used to "perge" the gas tank... but if you have a tank thats made/ bought that has a vent on top, you'll be fine...

[texanidiot25]

Maybe Im thinking something else from the older Vortec V8s.

[shifty]

Originally Posted by BigTex

Shifty - This it?
http://www.superchevy.com/technical/...sc_conversion/

Same setup, I think your article is from a different magazine though. Same concept.

Are you 100% sure that pre- '04 LQ9's have only one fuel line? Here is one of many LQ9 swaps I've seen that are using two lines:

http://67-72chevytrucks.com/vboard/s...5&postcount=50

If I had more time, I could prune through and find more ...

[BigTex]

Thats not what I said. I'm 100% sure that 2004 and up V8 truck, SUV and Van motors have one fuel line (returnless). Prior to that (1999-2003), the trucks and SUVs had two lines with the regulator on the rail. This thread is dealing with an 04 escalade LQ9 with a single fuel line.

All of the LS cars have a returnless system, with the 1997 C5 corvette being the exception to the rule. It was the only one with the fuel regulator on the rail and two fuel lines.

[billyjo]

I've done the swap and have over 6000 miles on it now. I'm not using the EVAP and my intake originally was a single fuel line (05 LQ4).

[FarmTruk]

Originally Posted by 70rs/ss

Wouldn't anything currently registered be grandfathered?

Several years ago, when NC counties began smog checking, there was NO grandfather clause. Had to take one truck off the road, and replace parts on a car...big bummer

I'm sure CA would be even more strict, as they set the pace for the rest of us...

[shifty]

Originally Posted by BigTex

Thats not what I said. I'm 100% sure that 2004 and up V8 truck, SUV and Van motors have one fuel line (returnless). Prior to that (1999-2003), the trucks and SUVs had two lines with the regulator on the rail. This thread is dealing with an 04 escalade LQ9 with a single fuel line.

My apologies, I think I misread what you said earlier. Thanks for the clarification, I love little tidbits of info like this - makes easier to help others doing late-model swaps in the future.

[bld2186]

112

[TONE]

Man, that would be way cool!! Get the emblems too, those would look sweet too!

[IvelDesigns]

So what's a good price for a complete setup, including the tranny?

and what's a good way to find a decent deal on one of these engines? pester the local junk yards? or try and pick one of from a local insurance auction yard and scrap the car?

engine build is still 2 years away for my project, but i am already starting to keep my eyes open for a good deal.

[JHART]

IMO i would look for a salvaged Escalade for the LQ9 . The only thing is i would look for the mechanical throttle setup vise the electric to save you some work. I'm not sure what year they switched over though.

If you get the electronic throttle body setup your going to need to need to change out the pedal setup and a some other stuff.

Also make sure you get the Painless Wiring kit ... i wouldnt recamend trying to be a hero and wiring it all yourself.

Then if it were me i would send the computer to Nelson Performance to get the tuning done.

-Good Luck! This is exactly what i am trying to acomplish with my truck.

GENIII motor = reliable power and awesome MPG.