[VE] How to: LLT to LFX engine swap

[Fu Manchu]

The fuel lines are different. If you can swap the whole line, that will be a win.
However, accessing the tank means dropping the whole rear assembly.

Alternatively make a -AN line to connect them?

 

[Commo64]

I believe it’s LLT and I’m putting a LFX in

Does your car have the 5 or 6 spd auto?

 

[Glitch]

Does your car have the 5 or 6 spd auto?

It had a 4 speed auto but I’m swapping it out for a 6 speed auto
When I got the motor and gearbox I got the wiring loom still attached and the ECU all from the same car
If that makes sense

 

[Glitch]

The fuel lines are different. If you can swap the whole line, that will be a win.
However, accessing the tank means dropping the whole rear assembly.

Alternatively make a -AN line to connect them?

One of the guys I work with suggested cutting it back on the firewall in the engine bay flare it and then making a line for it but the other issue I have is where is the return line location on the motor

 

[Commo64]

It had a 4 speed auto but I’m swapping it out for a 6 speed auto
When I got the motor and gearbox I got the wiring loom still attached and the ECU all from the same car
If that makes sense

So you're trying to swap an LFX into a car that had an LE0 motor, which is found in Omega and Berlina?

If the above is correct, then it's a different process to an LTT to LFX swap...

 

[Commo64]

It was. The series 1.5. Series 1 almost everything. Series 2 gearbox and motor.

Yep, I've got a 2010 Omega 1.5 with the Series 2 driveline and Series 1 everything else...

 

[someguy360]

It had a 4 speed auto but I’m swapping it out for a 6 speed auto
When I got the motor and gearbox I got the wiring loom still attached and the ECU all from the same car
If that makes sense

If it had a 4 speed it's 100% not an LLT.

This changes your conversion path a fair bit imo.

 

[Commo64]

If it had a 4 speed it's 100% not an LLT.

This changes your conversion path a fair bit imo.

Just having a look at the O.P's previous posts and it seems that they might have a 3 litre, but I'm really not sure what is going on here...

 

[Glitch]

So you're trying to swap an LFX into a car that had an LE0 motor, which is found in Omega and Berlina?

If the above is correct, then it's a different process to an LTT to LFX swap...

2009 Holden be Berlina sportswagon this

is the motor that come out of it

But the motor I am trying to put in is a LFX 3.6L 6S auto

 

[someguy360]

Yeah thats not an LLT.

It's going to be a much harder swap as none of the wiring looms from the old engine will work with the new one.

The LLT and LFX were both similar styled direct injected high output V6's the LFX was just a more updated version.

You are trying to take a non direct injected engine and put a direct injected one in, and also swapping in a much more advanced transmission. the fuel systems are completely different between these engines, the direct injected engines also run vacuum pumps as they don't generate vacuum like a traditional port injected engine etc.

Pretty much all the wiring looms, transmission modules etc will need to be swapped out of the donor vehicle, and possibly fuel pumps, lines, hoses, fittings etc. The engine harness/looms etc that youhave won't work, same with transmission looms and modules.

Direct injection runs at a lot lot higher fuel pressure than port injection so you'll need all teh supporting equipment that makes that fuel system work.