logic23 Posted February 21, 2020 Share Posted February 21, 2020 Hey guys, I picked up an 05 Forester XT with a blown 2.5 engine with the avcs set up. I know there is a JDM 2.0 turbo with avcs that will replace it but does anyone know about using a non avcs 2.0 turbo engine and doing some tune or delete trick so that the ECU insn't looking for the AVCS stuff. I would like to run the more reliable 2002-2003 wrx stuff. Thanks Craig Link to comment Share on other sites More sharing options...
wtdash Posted February 21, 2020 Share Posted February 21, 2020 Who said the EJ205 is more reliable? They spin bearings and blow headgaskets (yes, I had one) as well as the next one. I'd go look on NASIOC for more info as that EJ25 is essentially the same as the '06+ WRX EJ255 (slightly higher CR), which I would prefer. If that XT has the 4EAT you'll want the displacement as the Auto's suck the life out of the turbo'd engine. I had an '02 WRX AND an '04 FXT w/the 4EAT, and it was 7.5 seconds 0-60. People w/the 5-speed manual could do it <6 seconds. RE: the non-avcs EJ20, You'll need to either use RomRaider/ECUflash or get a Cobb AP to tune out/around the AVCS...I'd check w/a tuner BEFORE you pull the trigger on that, as I'm NOT an expert. Also, a tune can help w/the crappy stock tune and performance w/the 4EAT. I don't know your budget, but if you got the car cheap and want to keep it, I'd get a new shortblock for about $2K. Rebuild your heads and assuming YOU can do the labor, you'll have a fun car for cheap. I really don't trust any used Subaru turbo engine (except the old EJ22T), plus you never know how hard it was driven/maintained. Ps. That stock TD04 is likely toast, too. Get another turbo (VF39/43/48 from an STI) as an upgrade. NASIOC has those, too. 1 Link to comment Share on other sites More sharing options...
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