Welcome to the North American Subaru Impreza Owners Club Thursday July 24, 2014
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Here you can view your subscribed threads, work with private messages and edit your profile and preferences Home Registration is free! Visit the NASIOC Store NASIOC Rules Search Find other members Frequently Asked Questions Calendar Archive NASIOC Upgrade Garage Logout
Go Back   NASIOC > NASIOC Technical > Engine Management & Tuning

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 05-14-2003, 03:11 PM   #1
Hank3
Scooby Guru
 
Member#: 16157
Join Date: Mar 2002
Chapter/Region: South East
Location: Tallahassee, FL
Vehicle:
'03 Mazda P5 <><
'02 WRX & '08 MS3 SOLD!!!

Question AccessECU Stage 2 93 octane questions...

First off...props to COBB for getting this back to me in lighting fast time. I sent my ECU out Monday and got it back this morning. I installed my newly flashed ECU w/stage 2 and 93 octane. Couple of questions. I put my stock coupling back in instead of having the 3/16 one in. I read something about COBB giving you a special restrictor if you're running stage 1. Would using the 3/16 coupling have any effect on how the car runs now with mine being reflashed and all? Didn't know if running the car with the 3/16 mod via stage 2 would mean anything compared to stage 1. I've only driven the car for about 10 miles and I've gunned it once to see how much boost I'm running. In 5th at WOT, I was seeing the boost peak at 1.04 bar (about 15 psi or so I guess). About how long should I expect to have to wait for the car to relearn my driving habits? Cobb said maybe 16 psi boost in 4th - 5th? Is that what others are running so far with this setup?

BTW - no stumbling during accelaration like my TurboXS Stage 2 unichip. I'm diggin' the non-stumbling acceleration
* Registered users of the site do not see these ads.
Hank3 is offline   Reply With Quote
Old 05-14-2003, 04:08 PM   #2
Jon [in CT]
*** Banned ***
 
Member#: 2992
Join Date: Nov 2000
Chapter/Region: NESIC
Location: Connecticut, USA
Vehicle:
02 WRX Sedan
Silver

Default

The ECU will never learn anything about your driving habits.
Jon [in CT] is offline   Reply With Quote
Old 05-14-2003, 04:24 PM   #3
Hank3
Scooby Guru
 
Member#: 16157
Join Date: Mar 2002
Chapter/Region: South East
Location: Tallahassee, FL
Vehicle:
'03 Mazda P5 <><
'02 WRX & '08 MS3 SOLD!!!

Default

Quote:
Originally posted by Jon [in CT]
The ECU will never learn anything about your driving habits.
Cool!!!
Hank3 is offline   Reply With Quote
Old 05-15-2003, 02:21 AM   #4
S-WRX
Scooby Specialist
 
Member#: 9193
Join Date: Aug 2001
Location: California
Vehicle:
2002 WRX
Silver

Default

hank3, can you post your mods? I assume its full up-pipe+downpipe and maybe catback.
Also, do you have a BOV? I am thinking of doing the same thing down the road, but I am currently running a bov
S-WRX is offline   Reply With Quote
Old 05-15-2003, 09:53 AM   #5
lstepnio
Scooby Specialist
 
Member#: 10972
Join Date: Oct 2001
Chapter/Region: South East
Location: Tampabay, Florida
Vehicle:
2004 STi (fuxor3d!!)
2004 Forester X

Default

I have a HKS downpipe, ATR uppipe and Prodrive rear section with the 93/II map. The boost was peaking 1/2-1psi higher when I first installed the ECU but it seems to of settled down to about 15psi peak.

I did notice that car drives a bit better after about 500 miles but I honestly think it's that I've adjusted my driving more than anything else.

I would remove the 3/16 restrictor and replace with the OE.
lstepnio is offline   Reply With Quote
Old 05-15-2003, 10:16 AM   #6
Hank3
Scooby Guru
 
Member#: 16157
Join Date: Mar 2002
Chapter/Region: South East
Location: Tallahassee, FL
Vehicle:
'03 Mazda P5 <><
'02 WRX & '08 MS3 SOLD!!!

Default

Quote:
Originally posted by S-WRX
hank3, can you post your mods? I assume its full up-pipe+downpipe and maybe catback.
Also, do you have a BOV? I am thinking of doing the same thing down the road, but I am currently running a bov
I've got a Godspeed uppipe (which the map doesn't account for and doesn't make a noticeable difference), a MRT Turboback exhaust, Samco I/C hoses, and a Perrin Pulley.

lstepnio - I peaked at .96 bar this morning in 2nd-3rd gear. I still have yet to do some more runs on the interstate to see what it'll peak at. I guess I'll give it a few more days once everything is settled in. So far, no partial throttle high EGT issues. It pulls so much smoother than my TurboXS Stage 2 Unichip w/Blitz SBC-iD ever did. No rumblin stumblin mess - I prefer the smooth acceleration to redline anyday compared to the once in a while sudden-rush I got with the unichip/EBC setup. It was nice and all, but too many times it would stumble and at times embaraasing when I have passengers. We should be seeing 15-15.5 psi (peak) at 4th and 5th and then about 13 psi from 1st-3rd gear?

BTW - I put the stock coupling back before running my car with the reflashed ECU.
Hank3 is offline   Reply With Quote
Old 05-16-2003, 06:15 AM   #7
TurismoLou
Scooby Specialist
 
Member#: 9480
Join Date: Aug 2001
Chapter/Region: International
Location: Man of Mystery
Vehicle:
2011 Wrangler Unlim.
Anti-hybrid

Default

Hank, good to hear that reflash is working good for you. I have similar mods and was thinking of going the same route. Besides the smoothness, do you feel any more power?
TurismoLou is offline   Reply With Quote
Old 05-16-2003, 09:19 AM   #8
Hank3
Scooby Guru
 
Member#: 16157
Join Date: Mar 2002
Chapter/Region: South East
Location: Tallahassee, FL
Vehicle:
'03 Mazda P5 <><
'02 WRX & '08 MS3 SOLD!!!

Thumbs up

TurismoLou - after another day of driving with the reflashed ECU, I can honestly say that it was worth every penny. Now keep in mind that I'm pretty satisfied with the bolt-on mods route. I haven't and don't know when/if I will ever upgrade to a bigger turbo, intercooler, and all that it ecompasses. But for now, having the ECU reflashed has given me 100% better driveability compared to the unichip and EBC combination I had. Albeit, when I was running that setup, I chose when to have rice cooker mode on or not . But when I turned the boost up to 16.5 psi, it would stumble up to 16.5 psi. Almost felt like the turbo was lagging for a while, and then jolts. Now when it was working well, the boost came on more abrupt, so the neck snapping was more prevalent, but give me the option of the two, I'd choose to have a smoother power band of HP and Torque anyday. So basically all this to say, although I'm running a little less psi now, it's not noticeable to me. I don't feel more power, or less to be honest, but I can say the "push your back to the seat" feeling is more gradual then abrupt now. I'll echo the responses of many others who have made this upgrade already; very well worth it, more peace of mind knowing that your car is managed in a safer way (not saying that my parts will last as long, since they are being pushed harder), smoother power all the way to redline, no herky-jerkiness anymore while accelerating, and better all-around driveability.

Update - I got to 15.2 psi in 5th this morning. Looks like thigns are getting better Will post again if it goes up more...
Hank3 is offline   Reply With Quote
Old 05-16-2003, 04:22 PM   #9
Vegumkoho
Scooby Specialist
 
Member#: 12059
Join Date: Nov 2001
Location: colorado springs CO
Vehicle:
2002 WRX Blue
Wish all roads were dirt

Default

I have ordered my Stage 2 (91) hope to get it soon. I currently have a uppipe and thats about it. I will be adding the Turboback Monday followed shortly by the reflash. I am happy to hear all the good results, I know I will feel a big gain going from my current setup.
Vegumkoho is offline   Reply With Quote
Old 05-16-2003, 11:36 PM   #10
Hank3
Scooby Guru
 
Member#: 16157
Join Date: Mar 2002
Chapter/Region: South East
Location: Tallahassee, FL
Vehicle:
'03 Mazda P5 <><
'02 WRX & '08 MS3 SOLD!!!

Default

I don't think you'll be disappointed
Hank3 is offline   Reply With Quote
Old 05-17-2003, 07:33 AM   #11
TurismoLou
Scooby Specialist
 
Member#: 9480
Join Date: Aug 2001
Chapter/Region: International
Location: Man of Mystery
Vehicle:
2011 Wrangler Unlim.
Anti-hybrid

Default

Hank thanks for the very thorough review, I agree that the jerkiness of the Unichip wears on you after a while and I think I will be going with a reflash.
TurismoLou is offline   Reply With Quote
Old 05-17-2003, 10:38 AM   #12
Darryl
Scooby Specialist
 
Member#: 1626
Join Date: Jun 2000
Location: Cincinnati, Planet Mongo
Vehicle:
'02 RevLab 11.5:1
Platinum Silver

Default my 2 cents

I've been living with the Access Ecu reflash for several weeks now. Before that I had the full blown Club Spec kit. I agree with Hank about the smoothness of the drivability of the car. I think I'm down a bit on power, but I have not had my car dyno-tuned since the reflash. But while I feel it's down a bit on power, the application of power is much smoother than when I had the Unichip in the car. Torque application is much better too. I think this reflash is just a more logical application/modification than a piggyback signal interceptor. No wonder I'm selling my Unichip! ($120.00). I guess the best one-word description of the effects of the access ecu reflash would be "seamless".

No plans for dyno tuning here, and that might be an issue for some who plan to get the Access ecu. At present it can only be dyno tuned at Cobbs's place in Utah. If Cobb comes up with newer versions of the reflash (for your car), AND those newer versions make more power, then all the better. Those who can't wait may want to go with some other ecu reflash that incorporates driver programmability. I'm not good enough to know what I'm doing with programming an ecu myself, so Cobb's solution works best for me. I don't do any competition racing, bu tlike the extra power over stock when I need it, or just want to have a bit of fun. I like the feeling of not overstressing my car to any great degree, and the thing just drivers so much better that even the wife notices!

So, finally, the reflash is cool with me. Since I had the Club SPec kit, I now have the intercooler sprayer (ground wire) connected to a nice momentary switch that is intuitively placed on my stick. It's great being able to use that extra sprayer motor that came with the kit. The momentary switch solution was just too easy as a work- around, and allowed me to remove the Unichip, instead of leaving it connnected (but zeroed out). All feels like stock now, only better.
Darryl
Darryl is offline   Reply With Quote
Old 05-17-2003, 01:18 PM   #13
TurismoLou
Scooby Specialist
 
Member#: 9480
Join Date: Aug 2001
Chapter/Region: International
Location: Man of Mystery
Vehicle:
2011 Wrangler Unlim.
Anti-hybrid

Default

Man, now I really want one of these. I'm hoping they'll have a program for the vf30, sti injectors, and walbro fuel pump. When I checked their site they only had one for a vf23. VF30's are pretty popular so I don't think it will be too long before they have a program for them.
TurismoLou is offline   Reply With Quote
Old 05-17-2003, 02:56 PM   #14
jblaine
Scooby Guru
 
Member#: 8512
Join Date: Jul 2001
Chapter/Region: South East
Location: St. Pete, FL
Vehicle:
2002 WRX chassis...
stage-infinity.com

Default

That's my biggest concern right now too: maps.

It's completely in their hands to make them, and they're not the fastest moving company. Their top priority is their motorsports program (they state it on their website).

Then one thinks, "Well, they'll get more maps as more dyno tunes get done." Yeah, in UTAH?

So we're left with hoping that they have a bunch of turbos, a big TMIC, Perrin/TXS short pod intakes, STi injectors, and various parts laying around and plan to make a bunch of maps with them (in every configuration...)

No new maps have been added since February 17th and there's a long way (IMHO) to go before both the AccessTuner software is released and certified shops are established through COBB.
jblaine is offline   Reply With Quote
Old 05-17-2003, 05:03 PM   #15
TurismoLou
Scooby Specialist
 
Member#: 9480
Join Date: Aug 2001
Chapter/Region: International
Location: Man of Mystery
Vehicle:
2011 Wrangler Unlim.
Anti-hybrid

Default

Good point.
TurismoLou 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

Similar Threads
Thread Thread Starter Forum Replies Last Post
'03 5mt Cobb AccessECU Stage 2-93 Octane 02subadrew Mid Atlantic Impreza Club -- MAIC 2 04-08-2005 08:26 PM
'03 5mt Cobb AccessECU Stage 2-93 Octane 02subadrew Private 'For Sale' Classifieds 1 04-08-2005 07:24 PM
Fs/t Cobb accessecu stg 2 93 Octane '02 Turbosnow Tri-State Area Forum 4 11-10-2004 12:24 PM
Cobb AccessECU Stage 2 - 93 Octane mweinst Private 'For Sale' Classifieds 9 04-18-2004 08:34 PM
AccessECU, stg-2, 93 octane, lunch break impression. inthememof911 Factory 2.0L Turbo Powertrain 15 04-20-2003 10:40 AM


All times are GMT -4. The time now is 09:57 AM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2014 Axivo Inc.
Copyright ©1999 - 2014, North American Subaru Impreza Owners Club, Inc.