OBD1 tuning options for a hybrid turbo Outback

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impreza_GC8
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OBD1 tuning options for a hybrid turbo Outback

Post by impreza_GC8 »

Hey everyone I'm new (to this forum) so bear with me. I have a frankenstine turbo swapped Outback. Mods list is posted below. 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://bbs.legacycentral.org/viewtopic. ... 604#265604
-'97 Outback - EJ25 block/pistons/HLA heads, EJ22T crank/rods/ECU, EJ20G intake manifold/fuel rails/440cc injectors, VF8 @ 11psi. . . . Fuel cut > me
Aerotech
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Post by Aerotech »

It's pronounced Fronken-steen :)
Jerry

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Legacy777
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Post by Legacy777 »

To do it right, you need to go stand alone. A piggy back like the PP6 will work to some extent....but ultimately won't give you what you want.

I've looked into everything out there, and decided to go with a Link Plus. Yes that's out of your budget, but you might be able to get away with a piggy back or something that's more just a fuel & timing controller ECU.
Josh

surrealmirage.com/subaru
1990 Legacy (AWD, 6MT, & EJ22T Swap)
2020 Outback Limted XT

If you need to get a hold of me please email me rather then pm
impreza_GC8
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Post by impreza_GC8 »

^^^ Would an APEXi SAFC work? My friend has one for sale but I'm not sure if it will work with an OBD1 Legacy turbo ECU and harness. I can't exactly call Japan and ask either.
How about the PP6? Seems from the description that it will work fine for my application? Any cons to the PP6?
-'97 Outback - EJ25 block/pistons/HLA heads, EJ22T crank/rods/ECU, EJ20G intake manifold/fuel rails/440cc injectors, VF8 @ 11psi. . . . Fuel cut > me
Legacy777
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Post by Legacy777 »

I would not recommend the APEXi SAFC. It's only a fuel controller.

The PP6 should work. There are some old threads regarding the PP6. Some people have run them without issues. Others have run into issues with them. I ran one for a little bit, and had some issues. I think it was due to the plug & play harness I used.

If you're interested in going with the PP6, I have the one I was testing with that I'd like to sell since I'm going with a full stand alone.
Josh

surrealmirage.com/subaru
1990 Legacy (AWD, 6MT, & EJ22T Swap)
2020 Outback Limted XT

If you need to get a hold of me please email me rather then pm
impreza_GC8
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Post by impreza_GC8 »

^^^ Yes I am def. interested in the PP6. However I would want to call the Rallitek folks and talk to them about it. I would also appreciate a better description of what it allowed you to do and what "issues" you ran into. Feel free to hit me up on the PM's about it.
-'97 Outback - EJ25 block/pistons/HLA heads, EJ22T crank/rods/ECU, EJ20G intake manifold/fuel rails/440cc injectors, VF8 @ 11psi. . . . Fuel cut > me
Legacy777
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Post by Legacy777 »

There's a massive PP thread in here. I'd suggest searching and reading over it. Douglas Vincent has the most experience tuning with it.

When I have some more time I can pm you what it allows you to do and the issues I had.
Josh

surrealmirage.com/subaru
1990 Legacy (AWD, 6MT, & EJ22T Swap)
2020 Outback Limted XT

If you need to get a hold of me please email me rather then pm
Arctic Assassian
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Post by Arctic Assassian »

I have heard that the impreza ecu does not have the timing issues we have with the safc II. you should be able to add the fuel you need, without a band-aid like a rrfpr.

You will need to watch for knock. It's also helpfull to know someone with a select monitor, so you can datalog off the obd1 connector.
Kickin' it old-school.
Legacy777
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Post by Legacy777 »

You can't really datalog from the select monitor.....maybe the newer ones, but I don't believe the OBD1 ECU's had that capability. The select monitor I have doesn't.
Josh

surrealmirage.com/subaru
1990 Legacy (AWD, 6MT, & EJ22T Swap)
2020 Outback Limted XT

If you need to get a hold of me please email me rather then pm
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