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Rb25 Ecu's Difference Between S1 & S2?

PHaT MR30

By PHaT MR30,
in Engines & Forced Induction

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PHaT MR30 Grand Master

PHaT MR30

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Posted

As it states ive got a MINES ecu from a S1 R33, which have the ignition module above the coil packs.

I tried to put it in a car which obviously is a S2 RB25 (this doesn't have an ignition module, wether its built into the ecu or the coils i don't know).

anyway plugged it in and it started but ran like shit etc etc........ POURED fuel out the exhaust..

Straight away my thought was Z32AFM, cos the car the mines ecu came out of had one on it. Ive got a Z32 sitting here and we are gonna wire it up once i get a plug, but then i thought maybe it was something to do with the ignition module problem???

any suggestions would be great, we just want to get a bit more power out of my mates car before the weekend.....

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https://www.sau.com.au/forums/topic/111242-rb25-ecus-difference-between-s1-s2/
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raz0r$harP.UK Grand Master

raz0r$harP.UK

Posted
Posted

MINES ECU = not really any value to you in Australia.

- Support only by MINES offered to original purchaser of unit

- Usually not tunable by anyone else

- Do you know what level of mods it was tuned for? Are you sure?

- Most likely tuned for a higher octane fuel than you'll see locally.

paulr33 Grand Master

paulr33

Posted
Posted

i tried a series 1 remapped ecu on my series 2 rb25 and it felt flat as a tack and had no power at all, but it did start and run ok, just had no power at all, so i dont think they are fully interchangle. as razorsharp said mines ecu is useless in aus, throw in the bin

PHaT MR30 Grand Master

PHaT MR30

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  • Author
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it was making 173rwkw on a car with 11psi, pod and cat back in AUST...

we figured that it would make more on this engine with FMIC, turbo back zorst/dump pipe and more boost.....

no matter if it doesn't the parts were there to try..... no harm done

paulr33 Grand Master

paulr33

Posted
Posted

any ecu can make lots of max power

but its running mega rich through the entire rev range regardless of load (likely as its mines) then its pointless for everything else other than to waste fuel and do max power dyno runs. youll have terrible economy on the street not to mention the low down response is probably fairly average with standard ign mapping

much better to get a new remap or stand alone

PHaT MR30 Grand Master

PHaT MR30

Posted
  • Author
Posted

Yeh thanks paul, i know they aren't the best, was just worth a try, till mate can get decent aftermarket computer......

is anyone out there doing remaps of the RB25 ecu? like dr drift doesn't do them......

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