Welcome to the North American Subaru Impreza Owners Club Tuesday March 19, 2024
Home Forums Images WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Go Back   NASIOC > NASIOC Technical > Factory 2.0L Turbo Powertrain (EJ Series Factory 2.0L Turbo)

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.







* As an Amazon Associate I earn from qualifying purchases. 
* Registered users of the site do not see these ads. 
Reply
 
Thread Tools Display Modes
Old 01-24-2005, 07:10 PM   #1
Suba_Rex
Scooby Newbie
 
Member#: 79172
Join Date: Jan 2005
Question Need sum help getting my 05 wrx tuned right

Hey guys ....i need sum help! so any help is appriciated.
i just switch over from an acura rsx..and subbie tuning is all new and different to me.

I got a 05 wrx....with an automatic trany an i just put the $1.98 hose cupler (1/8 to 3/16) in to speed up boost as i read on this forum and a gp moto intercooler hose kit.

And i reset the ecu by disconnecting the neg. batt. term. and i did this will the car was cold.

Does it matter if the car is warm or cold?
Does it matter how i drive after restting?
Im just scared that i might mess something up...
Because i took it for a ride after installing hose kit and resetting ecu and i noticed that it shifts into 2nd gear a lot harder then it use to.
I also read on this forum that i can advance the learning of the ecu by resetting the ecu warm ...take it on a road .. keep it in 3rd gear at 2600 in boost for 5-10 sec. and this will also boost HP. gain...does anyone know if this will work in an automatic? Or will it damage anything

Does anyone know if the IC hose kit would void the warrenty?

THANK YOU ..in advance to anyone who helps me out!!!
i would just hate to mess thing up over my ignoance

-MIke
* Registered users of the site do not see these ads.
Suba_Rex is offline   Reply With Quote
Sponsored Links
* Registered users of the site do not see these ads.
Old 01-24-2005, 07:17 PM   #2
mcowger
Scooby Specialist
 
Member#: 77483
Join Date: Dec 2004
Chapter/Region: NWIC
Location: Seattle, WA
Vehicle:
2009 Audi A3 2.0T q
Lava Grey

Default

You need to not do anything but drive it nicely until its broken in. THen worry about tuning it.until
mcowger is offline   Reply With Quote
Old 01-24-2005, 08:17 PM   #3
Unabomber
Big Ron
Super Moderator
 
Member#: 18062
Join Date: Apr 2002
Chapter/Region: MAIC
Location: I can save you a ton of cash
Vehicle:
on car parts so PM
me b4 j00 buy

Default

http://forums.nasioc.com/forums/showthread.php?t=302047

There are very few things that will void your warranty and IC hoses isn't one of them. Search in the warranty forum for what will void your warranty. IC hoses can be used to deny warranty service. There's a difference and you best learn it in the warranty forum.

Take that crappy 3/16ths off of your car as it's 100% worthless and will cause nothing but problems.

Welcome to the Subaru world, but remember to reasearch twice, modify once.
Unabomber is offline   Reply With Quote
Old 01-24-2005, 08:23 PM   #4
WRX_02_227
Scooby Specialist
 
Member#: 12434
Join Date: Nov 2001
Chapter/Region: Tri-State
Location: PA
Vehicle:
2002 WRX #332
2019 BMW m240ix

Default

Quote:
I got a 05 wrx....with an automatic trany an i just put the $1.98 hose cupler (1/8 to 3/16) in to speed up boost as i read on this forum and a gp moto intercooler hose kit.
I have an 02 WRX with an automatic and tried the 3/16 mod and my boost was acting really weird. It would spike and sometimes seemed to take longer to spool up.

Quote:
Because i took it for a ride after installing hose kit and resetting ecu and i noticed that it shifts into 2nd gear a lot harder then it use to.
Resetting the ECU wouldn't change anything with tranny shift firmness that I am aware of. Unless the TCU learns and resets also, not sure either way.

Quote:
I also read on this forum that i can advance the learning of the ecu by resetting the ecu warm ...take it on a road .. keep it in 3rd gear at 2600 in boost for 5-10 sec. and this will also boost HP. gain...does anyone know if this will work in an automatic?
I am pretty sure that only works on a manual because you have to start out in 3rd gear. I might be wrong though...do you have a link to the post you are referring too?

Quote:
Does anyone know if the IC hose kit would void the warrenty?
Only way the dealer could legally deny you a warrenty claim is if the intercooler hoses CAUSED a failure.

Quote:
i would just hate to mess thing up over my ignoance
You are not ignorant, everyone has to learn at some point
WRX_02_227 is offline   Reply With Quote
Old 01-24-2005, 09:00 PM   #5
Suba_Rex
Scooby Newbie
 
Member#: 79172
Join Date: Jan 2005
Default

Quote:
Originally Posted by mcowger
You need to not do anything but drive it nicely until its broken in. THen worry about tuning it.until
I have had the car for three months and i have 2900 mile on it.

I did baby it an kept the rpm's under 4000rpm's for 1800 mile just like the break in period ask for.

Now im ready for more boost but money is limited ...trying to get the most boost for the buck if u know what i mean!

..thanks guys
Suba_Rex is offline   Reply With Quote
Old 01-24-2005, 09:33 PM   #6
scooterforever
Scooby Specialist
 
Member#: 55011
Join Date: Feb 2004
Location: New England
Vehicle:
1999 Legacy Outback

Default

Quote:
Originally Posted by WRX_02_227
I am pretty sure that only works on a manual because you have to start out in 3rd gear. I might be wrong though...do you have a link to the post you are referring too?
It works with the 4EAT. The trick is to hold it at 2,500 RPMs. 3rd gear isn't actually required, but works easiest in the 5MT. Here is the sticky on this:

http://forums.nasioc.com/forums/showthread.php?t=302047

Suba-Rex - the reset trick is helpful, but the most important thing to do right now is break in your WRX properly. There is lots of time for mods.

I myself would skip the 3/16ths mod. As the car is breaking in, spend your time researching options. How much power do you want? Most of the power enhancements out there for the manual work for the 4EAT.

As for the warranty, thereotically anything you do to the car that causes a part to break will result in that particular part not being covered. Most of us have gotten comfortable with modding these cars, though.

Have fun. If you want specific 4EAT examples, check out Jorge's site at projectwrx.com. Feel free to PM me if you have automatic questions as well.

-- scooter
VF-34'ed 4EAT
scooterforever is offline   Reply With Quote
Old 01-24-2005, 09:38 PM   #7
scooterforever
Scooby Specialist
 
Member#: 55011
Join Date: Feb 2004
Location: New England
Vehicle:
1999 Legacy Outback

Default

Quote:
Originally Posted by Suba_Rex
I have had the car for three months and i have 2900 mile on it.

I did baby it an kept the rpm's under 4000rpm's for 1800 mile just like the break in period ask for.

Now im ready for more boost but money is limited ...trying to get the most boost for the buck if u know what i mean!

..thanks guys
Ooops, I missed your post when I submitted my prior post.

What to do next really depends on what your target hp level is. But there are some easy places to start, with respect to staged power packages out there (hp for 93 octane):

260 hp: engine management (EM)
285 hp: EM, plus underdrive pulley and up-pipe (UP)
310 hp: EM, UP, plus turbo back exhaust (TBE)
350 hp: EM, UP, TBE, VF-30/34 turbo, STi pinks, Walbro fuel pump

There are other turbos and other approaches to horse power levels. Once you start approaching 300 hp, you need to think about a transmission cooler. You should put a tranny temp gauge now, as the 4EAT is very robust, but heat is its Achilles' heel. Others on this board would recommend putting the cooler in as soon as possible. Also consider switching to synthetic ATF.
scooterforever is offline   Reply With Quote
Old 01-24-2005, 09:39 PM   #8
WRXskeet
Scooby Specialist
 
Member#: 69435
Join Date: Aug 2004
Location: norco, CA
Vehicle:
2005 Aspen STi,rip02
Bugeye mafia 02 :(

Default

take that 3/16th fitting off your car.....
WRXskeet is offline   Reply With Quote
Old 01-24-2005, 10:27 PM   #9
Suba_Rex
Scooby Newbie
 
Member#: 79172
Join Date: Jan 2005
Default

hey i appriciate all help.....

One question that wasnt answered..was
Does it matter if the car is hot or cold when resetting the ecu and should i reset it when i replace the stock 1/8 hose cupler?

And advancing the ecu learning ...how and WOULD it benifit me?

Im not sure what my next step should be...i found this in the forum about the AccessPort..posted by JhoneR... is there any truth to this? Should this be my first step or should i work on getting a better exhaust, DP and a UP

AccessPort ($600) is IMHO the way to go as far as engine management for the untrained tuner because it is easily adaptable to your new mods as you go on, is invisible to the dealer, and doesn't involve cutting any wires. Basically, you just plug the thing into the port under you steering wheel, download maps from the Cobb website based on your mods, and load them onto your ECU. There really isn't much of a comparison, although simply reflashing the ECU with for example ECUTek each time to account for your new mods will work but gets expensive and means you have to drive somewhere to get it done rather than just downloading a new map. UTEC is OK but is more expensive and not as easy to work with for the untrained. Old Unichips (now about $200-300) will give you a cheap 30HP or so, but are not widely supported anymore and are therefore not easy to upgrade. Accessport on a stock WRX will add ~30HP and will even out your torque curve while at the same time giving you more peak HP (AND you don't have to mess with the FUN of tricking your HAL 9000-like ECU).
Suba_Rex is offline   Reply With Quote
Old 01-24-2005, 11:55 PM   #10
Cone Klr
Scooby Newbie
 
Member#: 73072
Join Date: Oct 2004
Chapter/Region: NWIC
Location: Eugene/portland
Vehicle:
02 wrx, 04sti
WRB squared!

Default

your transmission is electronically controlled by your t.c.m. along with your e.c.m. when you reset these two computers by unplugging the battery they will have to re adapt to controlling the transmission, the shifting should get back to normal in a few days of driving.
Cone Klr 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
need alittle help with my 2002 wrx and tuning kyle.barner Open Source Reflashes 5 01-19-2009 06:55 PM
help with my 05 wrx! alee8677 Service & Maintenance 1 08-08-2007 02:00 AM
Need to get my 02 wrx tuned 02stage4 New England Impreza Club Forum -- NESIC 11 08-02-2007 06:38 PM
Need some help getting my swap running eatadolfin Subaru Conversions 3 09-19-2006 02:00 PM
In Need of help w/ my 05 Setup PumpsGOTAWD Subaru Conversions 0 06-10-2005 01:01 AM

All times are GMT -4. The time now is 01:26 AM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2024 Axivo Inc.
Copyright ©1999 - 2019, North American Subaru Impreza Owners Club, Inc.

As an Amazon Associate I earn from qualifying purchases.

When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission
Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.