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S13 RB20 out RB25 in


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Hey all,

 

Just chasing a bit of info about the conversion i am about to do. Currently I have a RB20 in my S13, blew the motor so putting a 25 in :) Any body had any experience with this? As in the wiring side.

 

The 20 has an Adaptronic ecu, 25 package ive got has a tuned Haltec.

 

Any help would be great

Cheers

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  • 1 month later...

i dropped both rb20 and rb25 into a s13

 

Are you trying to use the rb20 engine loom on the rb25? If so cant help ya.

 

If not isn't it just a matter of wiring up the power to the ecu and fuel pump?

 

As far as i remembered the rb20/25 has the exact same ecu pinout.

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Hey all,

 

Just chasing a bit of info about the conversion i am about to do. Currently I have a RB20 in my S13, blew the motor so putting a 25 in :) Any body had any experience with this? As in the wiring side.

 

The 20 has an Adaptronic ecu, 25 package ive got has a tuned Haltec.

 

Any help would be great

Cheers

 

 

 

 

you have two options. wire up the adaptronic installed currently to the 25 and get it tuned and setup or wire in the haltech. both of the ecus are super basic in terms of wiring but its a bit of work not like using factory looms where you swap some plugs. what haltech is it ?

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