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10-20-2011, 12:22 PM | #1 |
Scooby Newbie
Member#: 269207
Join Date: Jan 2011
Chapter/Region:
TXIC
Vehicle:2011 WRX |
Overboosting in 5th Gear
2011 WRX stage 1.
I tried to find a general questions thread, but no dice. The car runs great and usually peaks out at around 16.8-16.9psi in third gear any given day, with the occasional 15.5+ on an off day. I figure this is fine since it's not exceeding the advertised 16.5+-.5psi. What concerned me the other day was having the AP plugged in and showing boost, I got up to 17.9 psi. Scared to death I was cooking the turbo, I slowed down. I thought it was just a fluke, until it happened again a few days later. Needless to say I'm watching the pedal in 5th now. I've noticed that it only occurs when I'm WOT in 4th until 5200rpm, and then shift to 5th, and go WOT again. I understand that this may be useless info without a datalog, but I'm apprehensive to do that kind of speed without the ability to safely do so. If it's absolutely critical I'll see what I can do. Thanks for any help! |
10-20-2011, 08:21 PM | #2 |
Scooby Guru
Member#: 171948
Join Date: Feb 2008
Chapter/Region:
Tri-State
Location: new york
Vehicle:19 Sti Crystal white |
did you throw a po244 overboost code? if not i wouldnt worry about it. your car will let you know if you hit the boost threshold. my tune is for about 20 psi and i see 22 psi somedays.
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10-21-2011, 09:57 AM | #3 | |
NASIOC Vendor
Member#: 4803
Join Date: Mar 2001
Location: Austin, TX
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Quote:
Bill |
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10-21-2011, 01:46 PM | #4 |
Scooby Newbie
Member#: 269207
Join Date: Jan 2011
Chapter/Region:
TXIC
Vehicle:2011 WRX |
sounds good - I'm away with a different vehicle so it'll be a couple of days. Thanks!
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10-25-2011, 12:15 AM | #5 |
Scooby Newbie
Member#: 279940
Join Date: Apr 2011
Location: university place wa
Vehicle:2006 wrx wagon |
my 06 is overboostig in 4th and 5th hitting 15.8 psi.
the car is stock cobb stage 1 AP nothing else is modified. any thing i should be consern of ? please help. |
10-25-2011, 10:19 AM | #6 | |
NASIOC Vendor
Member#: 4803
Join Date: Mar 2001
Location: Austin, TX
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Quote:
Bill |
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10-28-2011, 02:52 PM | #7 |
Scooby Newbie
Member#: 293644
Join Date: Sep 2011
Location: york pa
Vehicle:2002 wrx wrb |
overboost
i have a bone stock 02 n the other day while in wot in 5th gear i see my gauge sweeping back n forth between about 13-17 psi now when im in wot in 5th it will go up to about 15+ psi then drop to 10 psi then build back up to around 14 and hold there like supposed to any ideas what is going on i dont see any vac lines loose thanks
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10-28-2011, 03:48 PM | #8 | |
NASIOC Vendor
Member#: 4803
Join Date: Mar 2001
Location: Austin, TX
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Quote:
Bill |
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10-28-2011, 07:17 PM | #9 |
Scooby Newbie
Member#: 269207
Join Date: Jan 2011
Chapter/Region:
TXIC
Vehicle:2011 WRX |
Sorry for the long delay: here's a link for my 3rd gear 2000-Red:
3rd Gear Run I have a log of of the overboosting in 5th, but it's only to 17.4psi. It's at line 186 on this link. 5th Gear Run If there's any issues with viewing, let me know. I'll fix asap. Thanks again! |
10-29-2011, 09:43 AM | #10 | |
NASIOC Vendor
Member#: 4803
Join Date: Mar 2001
Location: Austin, TX
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Quote:
Bill |
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10-30-2011, 03:18 PM | #11 |
Scooby Specialist
Member#: 84147
Join Date: Mar 2005
Chapter/Region:
South East
Vehicle:14 JGC SRT Black |
It's worth mentioning that it isn't uncommon to see somewhat of a spike as the temperature gets colder.
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10-30-2011, 09:01 PM | #12 |
Scooby Newbie
Member#: 269207
Join Date: Jan 2011
Chapter/Region:
TXIC
Vehicle:2011 WRX |
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05-13-2012, 01:13 AM | #13 |
Scooby Newbie
Member#: 312346
Join Date: Mar 2012
Chapter/Region:
South East
Location: Florida
Vehicle:2012 WRX Satin White Pearl Sedan |
Funny, I just did some data logging and went WOT in 5th and hit 17.5 psi and I got scared. I have never heard the turbo spool like that. Kinda scares me to think that the TP stage 1 tune is made for 18psi lol...
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05-13-2012, 10:06 AM | #14 |
Scooby Newbie
Member#: 297565
Join Date: Oct 2011
Location: Dartmouth, MA
Vehicle:2011 WRX hatch Silver |
Yes, as you modify and the boost increases, the car does take on a slightly different tone. It happens. Don't be scared, embrace it. lol
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05-13-2012, 10:23 AM | #15 |
Scooby Newbie
Member#: 295983
Join Date: Sep 2011
Chapter/Region:
MAIC
Location: Clendenin, WV
Vehicle:2002 WRX WRB |
My friend had a 09 STi with stage 2 that through an overboost code in 5th. Unhooked the battery for a while then reflashed it and didn't happen again.
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