Installing VY Ecotec in place of blown L67 VX calais.

[funkyman]

I've acquired a VY ecotec motor and wish to install it in my Calais, its L67 is caput and I've gone for the $200 second hand motor rather than $2000 rebuild.

What issues will I have?

So far I realise stall convertor and engine computer will need replacing.
Do I need to replace the whole loom?

 

[Immortality]

Do you plan to run top swap the ecotec motor with the L67 heads or just a complete swap and run n/a?

 

[funkyman]

Do you plan to run top swap the ecotec motor with the L67 heads or just a complete swap and run n/a?

Complete swap, my L67 heads are cracked anyway.

 

[_R_J_K_]

You're going to have issues running the L67 tune on the Ecotec. Luckily the VY L67 was the last car you could get that had a memcal. Can get it mail order tuned or swap the ECU out if you have access to a Tech 2.

 

[funkyman]

You're going to have issues running the L67 tune on the Ecotec. Luckily the VY L67 was the last car you could get that had a memcal. Can get it mail order tuned or swap the ECU out if you have access to a Tech 2.

How about the fuel pump, will an L67's fuel pump run correctly on a non L67 ECU?

 

[2O4TS]

How about the fuel pump, will an L67's fuel pump run correctly on a non L67 ECU?

Fuel pressure is regulated by the fuel pressure regulator on the fuel rail so the higher capacity pump is irrelevant. I ran an L67 pump on an L36 for years without issue. You are correct that they run different fuel pressure. If you get a N/A tune for the L36 it'll be set up for the factory L36 injectors and regulator. You should not have any issues with the set up you have and a factory normally aspirated tune as long as you use the standard L36 injectors and regulator but you absolutely will need a tune in that ECU.