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View Full Version : OBD1 tuning options for a hybrid turbo Outback


impreza_GC8
08-08-2008, 09:24 PM
Some of you may have seen the thread I put in members pics of the hybrid swapped Outback I picked up a couple weeks ago. I posted the mod list. I need some help getting the thing tuned to run right. It runs too rich and I know there's a lot of power left in it. With a good tune I could really unleash the potential of the car (and get better gas mileage!) Are there any solutions BESIDES a standalone EMS? I'd like to keep the costs below $750.
Thanks for your help.

1997 Subaru Outback
5 speed, 4.11 with LSD

Mods:
EJ22T ECU & wiring harness
EJ22T crank & rods
EJ25 (NA) block halves.
EJ25 DOHC heads ('96 with hydro adjusters)
EJ25 flat top pistons
EJ20G intake manifold
440cc injectors
VF8 turbo (JDM ej20g)
catless 3" bellmouth downpipe
EJ22T exhaust
EJ22T fuel pump (have Walbro 255 in a box)
2002 WRX top mount IC with custom IC y-pipe
TurboXS adjustable bypass valve
comes in around 2.4 liters with around 8:1 compression ratio

Here is what the car looks like:
http://www.sl-i.net/FORUM/viewtopic.php?t=10440
rougeben83
08-08-2008, 09:52 PM
megasquirt
impreza_GC8
08-10-2008, 11:19 PM
I have considered MegaSquirt but am a bit turned off by the fact that it seems very complicated to set up.
Would an APEXi SAFC allow me to tune my A/F curve?
What about a Perfect Power 6 from RalliteK?
rougeben83
08-11-2008, 12:18 AM
I have considered MegaSquirt but am a bit turned off by the fact that it seems very complicated to set up.
Would an APEXi SAFC allow me to tune my A/F curve?
What about a Perfect Power 6 from RalliteK?

SAFC, PP6 only works with OBDII I think. SAFC is very minimal, you need to pair it up with something else, at the very least an RRFR.

Megasquirt is your best option TBH, it's cheap, has a lot of options, and there's tons of people out there with experience who will help you set it up via the internet.
impreza_GC8
08-11-2008, 12:20 AM
^^^ thanks for your input.
Are you using a MegaSquirt system?
rougeben83
08-11-2008, 01:22 AM
^^^ thanks for your input.
Are you using a MegaSquirt system?

Nope, my swap is using a dynotuned WRX ECU...one of the perks I guess as my old ECU's base map was never broken by the ROMraider/OpenECU guys.

I know plenty of guys using the Megasquirt for their various frankenswaps...LS1 in RX7's, V8's in Miatas, V6 sandrails, etc. If you need a basic standalone system, this is your best bet. OBD1 isn't as restricted as II either, so converting it to MS would be easier as well.