Anyone tryed using a Ver8 sti ECU in ver7 STI

[marc]

As title states people . Just want to know whos done it and if it works..

[Pappu1]

why wud u tho bro?

the v8 one works in the v7 if thats what u need to know.. but its not optimised as its also got the different avcs settings..

i find that sorting the v7 map gives more gains than going to a v8 one...

[funkytown]

Out of curiosity pappu - what about a v8 in a v7 spec C? as the heads are supposedly the same?

[Guest]

Agree with pappu. I wouldn't even trying to put another ecu in a different engine. Timing is different can easily causes detonation.

[Pappu1]

 funkytown said:

Out of curiosity pappu - what about a v8 in a v7 spec C? as the heads are supposedly the same?

the timing wud still not be optimised as the twin scroll turbo setup gives the v8 different loag/rpm zones..

it will run thats the short answer..

long answer - why risk running an unoptimized ecu map when the v7 can be tuned with lot of benefit

just with 2.5 inch exhaust and restrictor in muffler the v7 jump from 175kw@w to 210kw@w (personally tested from my own maps and verified on the dyno)

i wud say start off from the correct map and then mod it (can take hints from the way the other better maps are setup and tweak it that way)

[WRXONP]

lol i want to wire ver7 ecu into my ver3 and delete a few sensors :-)

[Pappu1]

marc has a drool friendly prodrive...yum yum...

[WRXONP]

yea i know probably the only ver7 i like . very classy

[marc]

Haha cheers guys ;D. Oh was just a thought as thers a ECUTEK v8 sti ecu for sale that I could buy and then just get a retune at torque vs doing my ecu frm scratch. bound to be cheeper as there are licence fees with ECUTEK that torque will have to charge to do the software on my ecu. Was just an idea at this point and if I didnt end up using fo some reason sill have a V8 STI to put it in .

Thanks for the info/comments once again

[Pappu1]

Solid plan bro. May work well

Maybe just confirm wid torque but ya sounds Like a great plan

[Stoffa]

 marc said:

Haha cheers guys ;D. Oh was just a thought as thers a ECUTEK v8 sti ecu for sale that I could buy and then just get a retune at torque vs doing my ecu frm scratch. bound to be cheeper as there are licence fees with ECUTEK that torque will have to charge to do the software on my ecu. Was just an idea at this point and if I didnt end up using fo some reason sill have a V8 STI to put it in .

Thanks for the info/comments once again

Well link list the same model ecu for V7-9 so it should work fine, if you actually going through the link manual

http://www.linkecu.com/support/documentation/g4-engine-management-documentation/SubaruV7to9

it seems the only difference which is switched with jumpers is between STI and non-STI, and looking at the pin outs the difference is ECU plug B134 pins 2 and 6 .

Im sure it wouldn't be a problem if your getting a full tune.

[marc]

 Stoffa']

[quote name='marc said:

Haha cheers guys ;D. Oh was just a thought as thers a ECUTEK v8 sti ecu for sale that I could buy and then just get a retune at torque vs doing my ecu frm scratch. bound to be cheeper as there are licence fees with ECUTEK that torque will have to charge to do the software on my ecu. Was just an idea at this point and if I didnt end up using fo some reason sill have a V8 STI to put it in .

Thanks for the info/comments once again

/quote]

Well link list the same model ecu for V7-9 so it should work fine, if you actually going through the link manual

http://www.linkecu.com/support/documentation/g4-engine-management-documentation/SubaruV7to9

it seems the only difference which is switched with jumpers is between STI and non-STI, and looking at the pin outs the difference is ECU plug B134 pins 2 and 6 .

Im sure it wouldn't be a problem if your getting a full tune.

Cheers man, yeah sounds about right. since u got the pin out diagrams handy does it say what thoes pins controll/go to?

[Stoffa]

have a look in that link, page 22, Digital Input 3 which is Air Con Request, on my version 5 wiring where there is an option like that, the ecu will only have one of the wires connected so its as easy as looking at plug B134 and there should be a wire connected to either one OR the other.

[Pappu1]

Same hardware stup but different maps between the versions

But ya since u retuning it's no problem as they will be changing maps anyway

Have heard great things abt ecutek bro

I have just been using open source but ecutek is the real deal and licenses etc u got a good workaround plan!