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Old 03-30-2006, 03:17 AM   #1
UndertoW101
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Thumbs up AP stage 2 2006 Question (update)

Alright so i flashed my ecu to cobb stage 2 93 oct. I was just wondering what other o6 guys are seeing for boost readings on a) there gauge (pref defi) and b) the AP live boost reading?

I have see almost 20 psi! from my defi gauge (which i have read tends to be high)

The only fix i can see for such a problem is a bigger turbo...which is another 5-600 dollarS!

I am going to try and port my turbo tomorrow...to see if that will help alleviate some of the overboost....until i can afford a new turbo.

Any info/advice is welcome

THanks


THanks
Chris
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Last edited by UndertoW101; 04-18-2006 at 03:22 PM.
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Old 03-30-2006, 08:26 AM   #2
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why is your only solution a bigger turbo?? and even if your guage "reads high" it shouldnt read that high.... wow.
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Old 03-30-2006, 10:39 AM   #3
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PDXTuning has several different maps for 2006 WRX and STI
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Old 03-30-2006, 10:45 AM   #4
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So u r on Stage 2???
Y not get it ProTuned??
U can see what is really going on and fix the problem.
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Old 03-30-2006, 02:08 PM   #5
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Quote:
Originally Posted by wrxblubayou
why is your only solution a bigger turbo?? and even if your guage "reads high" it shouldnt read that high.... wow.

The only solution being a bigger turbo or...my car exploding
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Old 03-30-2006, 02:09 PM   #6
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Quote:
Originally Posted by F-H
PDXTuning has several different maps for 2006 WRX and STI

I don't think they will help my overboosT....
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Old 03-30-2006, 04:03 PM   #7
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Why not call Cobb?

Seems like you have an interesting way of treating your car. If the only fix you can see is a bigger turbo I think you need more help than a forum can give you.
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Old 03-30-2006, 04:07 PM   #8
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Quote:
Originally Posted by UndertoW101
The only solution being a bigger turbo or...my car exploding

what??? how is getting a bigger turbo going to fix your overboost issues???
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Old 03-30-2006, 04:30 PM   #9
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obviously the orginal poster doe NOT know what he's talking about.... a larger turbo has different flow characteristics, how would that solve anything??. I would recommend driving the car to allow the ECU to learn a bit (when I first loaded up my accessport I was overboosting a little after about 200 miles from first installing it, but it fixed itself by 500 miles) or by calling Cobb. Also, get the boost readings from the accessport. If your going to just put a bigger turbo on or think your mechanically competent to P&P your stock turbo by yourself, I vote we (as in NASIOC) seize the vehicle Also, I know an excellent therapist
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Old 03-30-2006, 04:44 PM   #10
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Quote:
Originally Posted by Clark Kent
obviously the orginal poster doe NOT know what he's talking about.... a larger turbo has different flow characteristics, how would that solve anything??. I would recommend driving the car to allow the ECU to learn a bit (when I first loaded up my accessport I was overboosting a little after about 200 miles from first installing it, but it fixed itself by 500 miles) or by calling Cobb. Also, get the boost readings from the accessport. If your going to just put a bigger turbo on or think your mechanically competent to P&P your stock turbo by yourself, I vote we (as in NASIOC) seize the vehicle Also, I know an excellent therapist
Yes, someone calmly hold down the original poster and remove the Sube keys from his hands.....
no sudden moves, everything is fine...
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Old 03-30-2006, 04:44 PM   #11
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You could also try adjusting the arm on the wastegate... just do the opposite of what all the tutorials say to do (ie make the arm longer).
You could also use the AP to read the boost for comparison... OR better yet download the Tari software, do some datalogging and see what the cars doing. If the IAM is full advance you shouldnt have any worries...
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Old 03-30-2006, 05:09 PM   #12
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why not do external wastgate, then when u move up to bigger turbo you'll be all set
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Old 03-30-2006, 07:01 PM   #13
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An external wastegate is a waste.

(that was less redundant when I was thinking it)

The stock wastegate works fine up to a whole heap of power. Should we really be reccomending that the op gets any kind of part anyway?
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Old 03-30-2006, 07:05 PM   #14
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The AP doesnt read above 18.something psi.
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Old 03-30-2006, 08:34 PM   #15
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How about running the LWG maps? They are specifically designed to help with this.
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Old 03-30-2006, 09:47 PM   #16
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Quote:
Originally Posted by darksands
The AP doesnt read above 18.something psi.

....fixed....

...and use the AP to read live boost
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Old 03-30-2006, 10:38 PM   #17
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Quote:
Originally Posted by UndertoW101
Alright so i flashed my ecu to cobb stage 3 93 oct.
Well if you flashed the new stage 3 map you have messed up pretty bad, because that map is for the STi TMIC, a TBE, and a VF39.....
NOw if you meant to say stage 2, that's a whole other story...call Cobb and good luck!
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Old 03-31-2006, 01:20 AM   #18
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oops i did type 3 instead of two.

Me and my friend (the car guy) ported my wastegate tonight. I am still pretty high but not quite as bad as before. I will give it some time and then get a friend out there to look at the ap while i record on my Defi's.

An no i am not stupid... a lot of people on this forum advise that with the new 2.5 and the small turbo...there is only so much you can do. So if i went with a larger turbo and ported that one i should be ok. I know my friend's sti had a boost creep issue...he P&P his and now it's fine.

As for running the LWG maps..thats a good idea that i would like to try...where are these maps for the o6?

Also I was just looking for some o6 stage 2 wrx's to compare to. Anybody have some numbres?

PS. No reason to be mean people….i post on this board to learn. And i spend quite a bit of time searching and reading.

Seize my keys? Give me a break.

Last edited by UndertoW101; 03-31-2006 at 01:42 AM.
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Old 03-31-2006, 12:27 PM   #19
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How many miles did you drive after the Stage 2 flash? After you ported your wastegate, did you do a hard reset on the ECU (pull neg battery cable)? Also, I don't know much about the 06, but are you using the stock restricter pill in the wastegate line?

I agree with the others, give it a little time to learn before you do anything to drastic. I'm not questioning your knowledge of cars, but it does seem like you are heading down a road of major modification very quickly for a problem with uncertian origins.
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Old 03-31-2006, 12:46 PM   #20
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Quote:
Originally Posted by darksands
The AP doesnt read above 18.something psi.

mine seems to read 18.5 PSI just fine.
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Old 03-31-2006, 12:48 PM   #21
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Quote:
Originally Posted by UndertoW101
oops i did type 3 instead of two.

Me and my friend (the car guy) ported my wastegate tonight. I am still pretty high but not quite as bad as before. I will give it some time and then get a friend out there to look at the ap while i record on my Defi's.

An no i am not stupid... a lot of people on this forum advise that with the new 2.5 and the small turbo...there is only so much you can do. So if i went with a larger turbo and ported that one i should be ok. I know my friend's sti had a boost creep issue...he P&P his and now it's fine.

As for running the LWG maps..thats a good idea that i would like to try...where are these maps for the o6?

Also I was just looking for some o6 stage 2 wrx's to compare to. Anybody have some numbres?

PS. No reason to be mean people….i post on this board to learn. And i spend quite a bit of time searching and reading.

Seize my keys? Give me a break.

hmmm... yesssssssss
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Old 03-31-2006, 01:18 PM   #22
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Quote:
Originally Posted by UndertoW101

As for running the LWG maps..thats a good idea that i would like to try...where are these maps for the o6?

.

I keep fogetting the 06's are 2.5, I assumed you had a STI. Not sure if there is a LWG for the 2006
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Old 03-31-2006, 01:48 PM   #23
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Quote:
Originally Posted by Payback
but it does seem like you are heading down a road of major modification very quickly for a problem with uncertain origins.
That is the real issue. From all the reading and research have done on the forum
Upgrading the turbo seems like the best/safest solution to my issue.

1. the extra .5 displacement coupled with a large bellmouth is just to much for the stock turbo

2. An sti turbo (i am looking at a vf39 or 34) with the P&P will not only be more fitting for my engine...but can be setup up to yield better power down the road.

3. From EVERYTHING i have read boost creep "is a mechanical problem"! And can NOT be solved with standard Engine management. I mean is everyone wrong here?

My goal is this (I want a reliable and fun to drive car)
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Old 03-31-2006, 03:45 PM   #24
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Do you have boost creep or a boost spike?
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Old 03-31-2006, 04:41 PM   #25
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Maybe you can give us a little better description here. Start at the beginning, tell us how many miles you have driven on the map, what kind of driving you have done, how many times you have seen the high boost, and what were the conditions (gear, throttle position, etc.). Also, tell us what specifical mods you have and what you have do so far to attempt to correct the problem.

From what you have told us so far, this is what I'm interpreting from you:
  1. Flashed Stage 2
  2. Went for a drive
  3. Noticed a boost spike up to 20psi
  4. Drove home and posted here, "I am having boost spiking. Should I buy a new turbo? I'm going to port my turbo tomorrow."
  5. Complete disreguard of other's suggestions and reccomendations
  6. Ported your wastegate
  7. Continue to argue that a small turbo is responsible for high pressure and you need a bigger turbo that is capable of more power to solve the problem of spiking (or creeping, we don't really know which it is).

I'm just having a hard time understanding here. Do you have cash to burn, are willing to purchase a new turbo, install it, and run a map that may not match it in your effort to cure a boost spike BEFORE calling Cobb or trying anything that we have suggested?
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