Rb20 Ecu For Rb25?

[TSL]

Bretto - that makes sense now mate. The vct still isn't switching the way it's hooked up, it is just always activated.

Tuitahi - Off the top of my head that sounds right to me. Also have to change one other wire, it's for the power steering. A bunch of other wires from the z32 ecu become redundant.

I do have all the pinouts, i will put it up today/tonight sometime.

Sorry, heaps busy this week.

Cheers

[bretto]

Bretto - that makes sense now mate. The vct still isn't switching the way it's hooked up, it is just always activated.

exactly. like i said i dont know this sort of stuff to well so i was hoping it made sense. the only thing that we were a bit unsure about is that my battery went flat on sunday (got the car back friday night) and really the only difference that has been made since swapping the blocks is that the vct is wired into the fuse box to the ignition. any thoughts on whether that could possbly drain the battery??

[WazR32GTSt]

i went to mercury website and there was no advertisment of re-maps,

i was previously on there site a month ago and found there pricing and everything on it but now its gone

i might hit up google and find those pin-outs and have a sus

so you obviously didn't see the link in my post above yours?

http://www.mercurymotorsport.com.au/produc...nedit/index.htm

[2gceffy]

ahaha i saw your link but didnt click on it

i searched there site yesterday ! obviously not quite enough

thanks mate but i seen it doesnt say anything about z32 ecu's..

so once im finished all this will it pretty much be a rb25 ecu in the z32 casing pretty much? thats simple terms of course

[WazR32GTSt]

have a chat to them, either in person or give them a call

if they don't know they will probably ask Dr Drift himself and he will have all the answers so best to go and chat to them...

[2gceffy]

yeh i been talking to darren mews who looks after there emails and stuff, havnt had a chat to him about this tho.. was gonna do power run but might aswell wait now till i get this sorted

thanks for everyones help and suggestions !!

[TSL]

Ok i can't seem to attach excel files so i had to just take screen grabs.

[tuitahi]

Thanks TSL!

You are a legend... when you get time please send me a pm with a price for an eeprom loaded with RB25 maps as per my pm or a full z32 ecu if you have 1!

Thanks,

Drew.

[TSL]

the only thing that we were a bit unsure about is that my battery went flat on sunday (got the car back friday night) and really the only difference that has been made since swapping the blocks is that the vct is wired into the fuse box to the ignition. any thoughts on whether that could possbly drain the battery??

One would assume that if they have tapped into an ignition switched power supply then it should not drain the battery. However it does sound a bit suss that the battery started going flat after this wiring had been done. Get someone to double check that it is not hooked up to a direct feed from the battery.

[TSL]

Ok so with the wiring for the z32 ecu a bunch of wires are no longer needed so don't stress about them.

Z32 ECU REDUNDANT WIRES -

**************************

6

8

33, 34, 35, 36, 37

54, 55

57

102

111

Z32 ECU CHANGED WIRES -

************************

Injector and ignition coil wiring. (double check, triple check, get it right)

19 and 34 need to be swapped over. (power steering switch)

R33 KNOCK SENSORS -

********************

The easy way to do it is just hook up only one knock sensor.

If you have a cro or multimeter you can rev the engine and check which knock sensor puts out the higher signal, then connect that one to the z32 ecu. Or just use the one closest to the firewall.

AUTO TRANS?

************

Dunno, never tried it on an auto. Feel free to have a bash.

Edited February 15, 2007 by TSL

[2gceffy]

woah dude your a champ thats perfect !!!

how much should i expect to pay for the z32 ecu, iv found one but duno what to expect to pay??

[2gceffy]

does it have to be manual or auto ecu?

thanks

[TSL]

It does not matter if the ecu is auto or manual. The hardware is the same, only the software is different. So you can use a manual map in an auto ecu and vice versa.

What i was saying before though is i haven't seen this ecu swap done on an auto before. I'm not really sure if the z32 ecu would communicate properly with an r33 auto trans.

Oh and of course while r32 ecu's are a dime a dozen, it seems to be more tricky to find a z32 ecu for a reasonable price.

Edited February 16, 2007 by TSL

[2gceffy]

oh ok that makes sence bout the auto, lucky i got manual then ahaha

i was wondering on price cause i was told to make an offer and didnt wana get jibbed by offering way to much..

thanks heaps TSL

[TSL]

It's one of those things, when you are desperate for an ecu they are hard to find and expensive.

They can go for $50 or $300 just as easily.

Later when you don't need it, someone will offer one for free.

Edited February 16, 2007 by TSL

[2gceffy]

picked one up for $100 delivered, pretty stoked !!

offtopic yesterday i knocked off my boost gauge T by accident and the car remained running perfect ! wtf ! i remember when i first put the engine in i did this and it died right away.. i think i have a leak else where so could my car adapt to a vac leak>?

thanks

[TSL]

Only just thought of it but it is probably obvious anyway.

If you have an s2 rb25 then you need to run an external ignitor.

For anyone wanting to use an r32 ecu then just note that injector outputs 4 and 6 need to be swapped around.

Edited February 19, 2007 by TSL

[2gceffy]

yeh i had a think about about s2 and was wondering abit, im running s1 engine off s2 ecu atm.. hopefully il have some before and after results for everyone when this is done, im not expecting gains really just an easier way to live with rb25 interaction ahahah

[Slide]

Mercury Motorsport do R33 remaps but need to use an RB20 computer with a buddy club vvti controller to activate the variable valve timing.

[BigC1988]

I just got my RB25DET (series 2) and I was hoping you could help me with some questions.

My Skyline is non turbo so it will be a big step with the RB25.

Now then, my first question is about the gearbox mounts, I hear they aren't the same and I will also have problems with the speedo meter. What do you know about this? Can I use the Xmember of the R33 ??

The second is about the harness, everyone that has ever swapped an engine told me that the harness is the most difficult part of the swap. Do you have the diagram of the R32 and the R33 (still can't find it for the R32) and some pointers on how this is done??

Hope to get a reply from you soon

Carlos Rudolph