billybootdoon

hi there , just bought a 1997 subaru wrx sti and been told it has a 2.5 engine under the bonnet i am looking for a 2,5 ecu to replace the 2,0 ecu thats in it and im looking for 1 eaither chiped remapt or standard for me to get it remapt chip not realy got clue how abt going to find or buy 1 from so thats why i joind scooby net thanks for takin your time to read this and hopefully some 1 outt there can help me,

chasey

iTrader: (2)

You need to have it mapped mate.

BlueBugEye

iTrader: (12)

First thing to check is is it a 2.5 - check the engine code on the block!

weazel litchfield type

iTrader: (2)

Pm me i have 2004 2.5 sti ecu wich i would sell, best off finding out if it will fit first

billybootdoon

its defo a 2.5 block mate

billybootdoon

what checks would i do to see if this will be the 1 that fits mate not realy got any idea abt this problem i have sorrry

BlueBugEye

iTrader: (12)

You need a custom map as if it does have a 2.5 bottom end it almost certainly does not have 2.5 heads therefore a 2.5 ecu would not work (AVCS etc.). Also your wiring loom will not be compatible, unless that is you have had a full 2.5 conversion including wiring loom, long engine, turbo etc. etc.

Jolly Green Monster

iTrader: (4)

97/98 currently best option would be a simtek

Drive it off boost else you will break it

Simon

PaulJC

iTrader: (1)

And dont try to find the 2.0 rev limit... That'll end in tears aswell...

m@t STImulation

iTrader: (3)

on here its somtimes hard to know who knows what they are talking about

JGM is a pro so take his advise

and from my experience if you try and play with a 2.5 bottom end with a standard ecu it goes very badly and costs lots of money.
the other thing you want to thinkabout is a 6speed box or a straight cut box, as the torque will be high from the 2.5, with a map to make the most out of it you will need to do something