R34 Gt-Four Engine Swap

[VFRegal]

Hey, helping a mate do an engine conversion in an R34 GT-FOUR. Initially thinking of an RB26 or RB30/26 swap but the big concern is the level and complexity of the re-wiring that might need to be done to get the 26 loom spliced into the 34's existing loom.

We want to have the car off the road for the minimum amount of time possible.

So queries are:

· Would we be better off ripping the 25 loom out and replacing with the 26 loom?

· Can we somehow use a mixture of the 25 and 26 looms?

· Or should we instead go with an RB25 or RB30/25 so that the wiring should be easier? On that note, is there a huge amount of difference in the wiring looms between the 34gtt and the 34 GT-FOUR (i.e. non-turbo)?

Cheers,

Peter

[045HOW]

Not a big concern. People can install 25DET neo into an R32 and use the RB20 loom with a few simple modifications to the loom AFAIK

I dont have the info for you but if this thread goes unanswered after a few days i would suggest posting this thread in the forced induction section and you will get the answers you seek. Also there may be some threads that already have the info you need hidden in the depths of this site.

[Bronx]

25 is easiest.

but yes you can use your 25 loom for the 26 conversion, bit of splicing and dicing to do.

just download an electronics pinout for the rb25 ecu and then compare it to a rb26 one. then re arrange the wires accordingly. might also need to check the voltages for a few small things.

[VFRegal]

Thanks guys,

Is there somewhere online that you can get the electrical schematics ?

[Bronx]

search on here or on google for r32/r33 rb26 ecu pinout and then for a rb25 pinout. should be easy to find.

[VFRegal]

Thanks everyone, much appreciated.