Welcome to the North American Subaru Impreza Owners Club Monday October 22, 2018
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Go Back   NASIOC > NASIOC Technical > Engine Management & Tuning > Open Source Reflashes

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.
* Registered users of the site do not see these ads. 
Reply
 
Thread Tools Display Modes
Old 08-02-2018, 01:11 PM   #1
currancchs
Scooby Newbie
 
Member#: 488200
Join Date: Jul 2018
Location: Brookline, NH
Vehicle:
2006 WRX TR
World Rally Blue

Default Thoughts on Tune

Bought a used 2006 WRX with an open source tune and am looking for opinions on it. Have barely driven the vehicle, as there are some title issues I'm sorting through currently, but vehicle ran well on test drive home, although the factory primary O2 sensor reads full scale lean a second or two after I hit 4k rpm, right after settling in around 11:1 AFR, and the tune forces open loop at idle. No knock though (-1.4 FLKC was the most I saw). Bought a wideband and gauge, boost gauge, new factory primary O2 sensor, cleaned the MAF, but haven't datalogged yet as the car is not registered and I don't want to draw that sort of attention to myself with an unregistered vehicle!

Car has a TD05-20G turbo (maybe - seller claims he has receipt for 20G, but was advertised as having a 16G and I was later told it had an 18G before being told it was actually a 20G), Walbro 255lph fuel pump, Injen CAI, catless downpipe mated to stock exhaust, and 3 port bcs.

Tune can be downloaded here:
https://www.dropbox.com/s/3wv51519mc...chase.bin?dl=0

Thanks!
* Registered users of the site do not see these ads.
currancchs is offline   Reply With Quote
Sponsored Links
* Registered users of the site do not see these ads.
Old 08-02-2018, 03:08 PM   #2
mr.nicknasty8
Scooby Newbie
 
Member#: 244192
Join Date: Apr 2010
Chapter/Region: NESIC
Location: Vermont
Vehicle:
2006 WRX
ARC FMIC

Default

That tune is aweful. Barely modified factory rom. Still has stock injector scaling, and MAF scaling. Horrible ignition table and terrible boost control/target. You need a new tune. PM me if you'd like to come one state over for a dyno tune
mr.nicknasty8 is offline   Reply With Quote
Old 08-02-2018, 06:31 PM   #3
currancchs
Scooby Newbie
 
Member#: 488200
Join Date: Jul 2018
Location: Brookline, NH
Vehicle:
2006 WRX TR
World Rally Blue

Default Information

Thanks for taking a look at it. Just FYI, injectors are stock AFAIK, so I wouldn't necesarily expect them to be scaled, and the MAF scaling table looks ever-so-slightly altered from stock, based on my comparison to an alleged base map for the same vehicle, which can be accessed here:
https://www.dropbox.com/s/2es1ur6ypd...H201X.HEX?dl=0

I'm going to be looking at all of the maps more over the next few weeks and putting in some more reasonable values before I start daily driving the vehicle and will report back with the updated map, once created. Until then, if anybody has any specific tips, they'd be greatly appreciated. Otherwise, I will continue reading the very helpful guides (thanks to whoever took the time to compile the "Complete Tuning Guide"!) and forum posts of others, watching videos, asking questions, etc.

Thanks!
currancchs is offline   Reply With Quote
Old 08-03-2018, 06:06 PM   #4
nicob
Scooby Newbie
 
Member#: 487463
Join Date: Jun 2018
Default i need some help with tunning too

I have just finished up an wrx hybrid build and I was wondering if anyone could assist with some ecu and romraider tuning. currently I just adjusted the injector size and just disabled the tgc codes. let me know what you all think. the car is running and seems to be running pretty good.

2002 wrx
2.5 sti block from s&s sandrail services
2.0 rebuilt and machined heads.
565 injectors
tgv delete
short ram intake ebay.
turbo inlet ebay.
cat back on the way.
nicob is offline   Reply With Quote
Old 08-03-2018, 06:07 PM   #5
nicob
Scooby Newbie
 
Member#: 487463
Join Date: Jun 2018
Default 2002 wrx hybrid tunning ecuflash assistance needed.

I have just finished up an wrx hybrid build and I was wondering if anyone could assist with some ecu and romraider tuning. currently I just adjusted the injector size and just disabled the tgv codes. let me know what you all think. the car is running and seems to be running pretty good.

2002 wrx
2.5 sti block from s&s sandrail services
2.0 rebuilt and machined heads.
565 injectors
tgv delete
short ram intake ebay.
turbo inlet ebay.
cat back on the way.
nicob is offline   Reply With Quote
Old 08-05-2018, 04:35 AM   #6
bobjr94
Scooby Specialist
 
Member#: 6176
Join Date: Apr 2001
Chapter/Region: NWIC
Location: Roy,WA
Vehicle:
15 WRX, 04 wrb STi
85 wrb BRAT

Default

Still using the original injectors ? They won't be able to keep up with a 20G, a 16G maybe if you don't run over about 16lbs of boost but still will be near their limit. Watch or log the injector duty cycle while under boost, keeping them under 80% is best and if they hit 90% don't do it again until you get bigger injectors.
bobjr94 is offline   Reply With Quote
Old 08-06-2018, 09:29 AM   #7
currancchs
Scooby Newbie
 
Member#: 488200
Join Date: Jul 2018
Location: Brookline, NH
Vehicle:
2006 WRX TR
World Rally Blue

Default Thanks for the tip!

Quote:
Originally Posted by bobjr94 View Post
Still using the original injectors ? They won't be able to keep up with a 20G, a 16G maybe if you don't run over about 16lbs of boost but still will be near their limit. Watch or log the injector duty cycle while under boost, keeping them under 80% is best and if they hit 90% don't do it again until you get bigger injectors.
Thanks for the tip. Thought that ~550cc, which I believe was stock that year, should be OK and monitored IDC, which maxed just a hair over 80%, so didn't think bigger injectors would be needed until/unless I started turning up boost. For background, I used to have a modified 1.8t and, on a stage 2+ GIAC tune, was running a hair over 100% duty cycle without issue, so thought 80% was a fair amount of headroom here. Are Subarus less forgiving about high injector duty cycles for some reason? The concern with the VW injectors, IIRC, was that the injectors would overheat if run hard for too long; the fuel puddling on the back of the intake valve didn't seem to be that big of a concern at the time and I never had issues running lean on that motor, but turbo was factory K04, so fairly small, but running 21.5 psi.

Also, FWIW, i'm only running 16psi now, although I know that 16psi on a larger turbo with a free-flowing (decatted) downpipe is not necessarily equivalent to 16psi on a smaller turbo with more downstream restriction. Also wasn't sure what the factory internals, which I assume are what's in there, could handle, so wasn't planning on really turning up the boost much from where it currently is.

tl;dr - I'll look into upgraded injectors as soon as I iron out some other issues with the vehicle. Are there any injectors people seem have found work particularly well for a setup like mine? I would prefer to maintain idle and part throttle drive-ability, as opposed to leaving headroom for more power in the future.
currancchs is offline   Reply With Quote
Old 08-06-2018, 02:54 PM   #8
subaru_gc8
Scooby Specialist
 
Member#: 29292
Join Date: Nov 2002
Chapter/Region: SCIC
Location: Orange County CA
Vehicle:
2004 WRX wagon
silver

Default

Quote:
Originally Posted by currancchs View Post
Thanks for the tip. Thought that ~550cc, which I believe was stock that year, should be OK and monitored IDC, which maxed just a hair over 80%, so didn't think bigger injectors would be needed until/unless I started turning up boost. For background, I used to have a modified 1.8t and, on a stage 2+ GIAC tune, was running a hair over 100% duty cycle without issue, so thought 80% was a fair amount of headroom here. Are Subarus less forgiving about high injector duty cycles for some reason? The concern with the VW injectors, IIRC, was that the injectors would overheat if run hard for too long; the fuel puddling on the back of the intake valve didn't seem to be that big of a concern at the time and I never had issues running lean on that motor, but turbo was factory K04, so fairly small, but running 21.5 psi.

Also, FWIW, i'm only running 16psi now, although I know that 16psi on a larger turbo with a free-flowing (decatted) downpipe is not necessarily equivalent to 16psi on a smaller turbo with more downstream restriction. Also wasn't sure what the factory internals, which I assume are what's in there, could handle, so wasn't planning on really turning up the boost much from where it currently is.

tl;dr - I'll look into upgraded injectors as soon as I iron out some other issues with the vehicle. Are there any injectors people seem have found work particularly well for a setup like mine? I would prefer to maintain idle and part throttle drive-ability, as opposed to leaving headroom for more power in the future.
best is to ask the tuner what he prefers.
subaru_gc8 is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

All times are GMT -4. The time now is 08:33 PM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2018 Axivo Inc.
Copyright ©1999 - 2017, North American Subaru Impreza Owners Club, Inc.