ECU

[rb.ethan]

Hi, I picked up an RB20det (R32) a little back and have been fixing it up with the spare time that I have. I have almost everything for it except one major part, and ecu. I found a pretty cheap ecu for an R32 GTR, and I was wondering if that RB26dett ecu could work with my RB20det?

[Ben C34]

Do you want to use 2 air flow meters?

[GTSBoy]

On 3/8/2022 at 12:26 AM, rb.ethan said:

wondering if that RB26dett ecu could work with my RB20det

Yes it can, but there are many reasons why you don't want to do that. That is well into expert territory. Twin AFMs, twin O2 sensors, mapped for a different engine size and injector size, etc etc. You'd need to Nistune it to be able to use it, plus deal with all those 2 for 1 problems. As I said, doable, but definitely non-trivial.

If you can't find an RB20 ECU, just buy a 2nd hand aftermarket ECU like a Haltech that someone is upgrading from.

[Dose Pipe Sutututu]

Nistune it, then convert to a single R35 card AFM...

 

but why? just get a Haltech 750 if you're on a budget.