Rb20Det Ecu And Loom Onto Rb25De Non Vct

[azarawr]

Hey Guys,

I have been reading through threads about this but non are really specific to the RB25DE NON VCT. I would like to know if an RB20DET ECU will run an RB25 non vct and are the looms the same?

Any help would be greatly appreciated.

Cheers,

Aaron

[mad082]

the ecu would run it, but not very well. for starters the mapping is for a 2.0L engine with lowercompression and a turbo bolted to it and you are putting it on a higher compression, larger displacement engine. if you are planning on putting a nistune in it then yes it should be fine once it's tuned.

[azarawr]

the ecu would run it, but not very well. for starters the mapping is for a 2.0L engine with lowercompression and a turbo bolted to it and you are putting it on a higher compression, larger displacement engine. if you are planning on putting a nistune in it then yes it should be fine once it's tuned.

Are the looms for the RB20DET and the RB25DE Non VCT the same?

[mad082]

to be honest, i have no idea, but i would assume that at least the ecu plug would be the same, which is all you would need to use that ecu.

[azarawr]

to be honest, i have no idea, but i would assume that at least the ecu plug would be the same, which is all you would need to use that ecu.

Alright, thanks for your help mate

[StevenCJR31]

Hey Guys,

I have been reading through threads about this but non are really specific to the RB25DE NON VCT. I would like to know if an RB20DET ECU will run an RB25 non vct and are the looms the same?

Any help would be greatly appreciated.

Cheers,

Aaron

i reckon you should be okay, is the 25DE you are using from a 32? ive got a R32 that has a 20det and have a (32)25de/wiring loom/afm/ecu (and a T to be added) that i wanna put in and so far the looms look very similar

[azarawr]

i reckon you should be okay, is the 25DE you are using from a 32? ive got a R32 that has a 20det and have a (32)25de/wiring loom/afm/ecu (and a T to be added) that i wanna put in and so far the looms look very similar

Yes, the engine I am looking at is the non vct out of a R32, cheers for that response let me know how the swap goes