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Old 04-01-2005, 10:37 AM   #1
trex1200r
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Join Date: Feb 2004
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2004 Forester XT

Default AP Stage 2 Live Boost?

Flashed stage 2 yesterday, live boost only gets up to about 11 psi. Spikes to 10 or 11, then sinks down to about 9 and holds. Have an 04 Forester XT 4EAT. Cobb downpipe, SPT Catback. Probably have 60 miles on the car since I loaded the Stage 2 base map. 91 octane. Took a look under the hood yesterday, doesn't look like any hoses are off. Didn't remove any for the install anyway. Did end up pushing my intercooler around a bit trying to break loose a frozen bolt on the Turbo. Any thoughts?
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Old 04-01-2005, 01:13 PM   #2
boost4life
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Lost the boxer rumble

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Sounds like stock. Try selecting new map and load the realtime stage 2 map on .
If that don't help talk to cobb. it sound like the reflash never took
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Old 04-01-2005, 09:23 PM   #3
phantomsr
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Make sure you get that reading at highway speeds. Not to sure how the EAT responds but I know you don't always see full boost until 3rd or 4th in the 5mt and that puts you upwards of 50-60 MPH.
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Old 04-02-2005, 02:06 PM   #4
BIG GUN
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Quote:
Originally Posted by trex1200r
Flashed stage 2 yesterday, live boost only gets up to about 11 psi. Spikes to 10 or 11, then sinks down to about 9 and holds. Have an 04 Forester XT 4EAT. Cobb downpipe, SPT Catback. Probably have 60 miles on the car since I loaded the Stage 2 base map. 91 octane. Took a look under the hood yesterday, doesn't look like any hoses are off. Didn't remove any for the install anyway. Did end up pushing my intercooler around a bit trying to break loose a frozen bolt on the Turbo. Any thoughts?
I am running a stg.2 1.19-93 oct. map on my 02 WRX wagon. I am seeing 15-16+ psi boost on my Autometer. I cant look at the AP boost while I'm booting it, so I don't know if it's accurate. Did you flash a stg.2 base map? You really need to run an equal base to your realtime, or better. I did tighten up my wastegate adjustment one full turn, and that helped holding boost.
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Old 04-02-2005, 03:11 PM   #5
jroberts
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How do you get the AP to read live boost levels? Trying to find out.
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Old 04-02-2005, 05:37 PM   #6
punk'd
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give it some time 2 to 300 miles the ecu is adjusting
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Old 04-05-2005, 02:07 PM   #7
trex1200r
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I have loaded the base stage 2 91 octane map. Even reloaded stage 1, and then went back to stage 2 base map over a couple of day period. No real difference in performance that I can tell. Boost levels were the same with both maps. Have only tested first 3 gears of the auto tranny though. Never on the highway at times when you can open up and check the top end in fourth.

To read live boost, you just plug in your ap, set the function to live boost, and drive. Not the safest to hold the ap while putting the hammer down, so make sure you are in a no traffic area.

It has been a couple of 100 miles since my last reflash, doesn't seem to be learning any new tricks. Cobb asked me some questions today through email, I will post their answer if they have anything to add.

TREX
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Old 04-11-2005, 02:29 PM   #8
trex1200r
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Well, low boost has been cured. Tightened waste gate adjustment arm 1.5 turns. Got rid of the fluttering noise, increased boost to hold 12 psi in 1st and 2nd on the Auto. Haven't been able to try a high speed run. No spiking, just strong consistent boost.
trex
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Old 04-11-2005, 02:36 PM   #9
pezman04wrx
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Default

Kind of OT, but the fluttering noise you described ... Is it on spool up? ... I just installed my TBE yesterday, and I here a fluttering sound as well ... I had low boost, about 14.7lbs, but loaded the HWG map and the boost hits target now ... Could I just be experiencing this wastegate flutter as well? ... Guess I kind of figured it was a normal sound as the TXS dp certainly lets you hear everything ...
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Old 04-11-2005, 07:04 PM   #10
trex1200r
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there is a thread under the 2.0 engine forum that is conducting a poll on wether the waste gate flutter is improved, and if boost is improved with the actuater arm adjustment. Its running at about 10:1 that snugging up the arm reduced flutter without adverse affects. Some people report increased boost spike, so I would start with 1.5 turns and see if you notice any difference good or bad. I went conservative with 1.5 turns and it has worked well for me so far.
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