Don't shoot me, I have seen Revilla's (extremely helpful) guide. This is a slightly different scenario though and am interested if anyone has taken this approach.
Car currently has a 1.6 EU3 engine as fitted by Caterham
I pulled the engine and loom from a MGZR 160 a couple of years ago.
My intention was to fit the engine with loom so that the removed engine/loom could be stored and refitted at any time with no alterations required to the car. I wanted it to be a simple bolt up and a couple of plugs job to swap back.
Laying the loom out this afternoon I couldn't figure out why I didn't seem to have any connectors for the MFRU. A bit of research has shown that the ZR160 didn't have an MFRU and included the relevant relays in the fuse box.
I suppose my options are now:-
1) Modify current 1.6k loom to include VVC gubbins (Not ideal as can't switch back easily)
2) Modify current loom to be switchable between the two engines (clever bit in Revilla's guide on this) (Good option but leaves me swapping looms between engines).
C) Modify VVC loom from MGZR to include external relay holder(s) in place of the MFRU/relays in fuse box. (preferred option).
Has anyone reading this done 'C'? I suppose this has the added benefit of getting rid of the problematic MFRU. I seem to recall the Caterham doesn't use all the relays in it anyway.
Also, can the wiring in the car to the 5AS unit stay the same? It'd be nice if it just required me to swap the 5AS units at the same time as the engines if required.
I'm guessing this is a bit specific and nobody is likely to have done it this way but who knows? Will update with a quick guide when I've sussed it if nobody knows...
Thanks in advance