Just installed boost gauge, peaks at 12psi. Is this normal on a stock '02 WRX?

AjntOrnj · 10-16-2009, 11:25 PM

The title says it all.

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WRX Loki · 10-16-2009, 11:27 PM

14.7 for stock

AjntOrnj · 10-16-2009, 11:33 PM

does what gear I am in affect how much boost the computer allows?

UkNuck · 10-16-2009, 11:55 PM

the gear affects engine load and THAT affects how much boost you will see

ItalianGuy · 10-16-2009, 11:57 PM

Quote:

Originally Posted by WRX Loki

14.7 for stock

14.7 is the stock boost on an STi. A WRX is 13.5 iirc. Either way you should peak more than 12 pounds but from what i've read here 12 pounds is a normal consistent pressure.

Mine peaks around 16.9, I have seen the low 17s but that's with a stage two reflash.

rkramer · 10-17-2009, 12:01 AM

13.61 is stock. I had thought it was 14 something but I doublechecked on an original map, guess not.

AjntOrnj · 10-17-2009, 12:14 AM

If I am truly not hitting 13.5 psi, what could be preventing me from getting full boost?

It seemed like the consistent boost level was about 11 psi.

evan_impreza · 10-17-2009, 12:46 AM

even at wot in 4th gear..?

AjntOrnj · 10-17-2009, 01:00 AM

just took the car through third and couldn't get a long hard pull as I was already 15mph past said speed limit. But i didn't see the needle peak past 12psi.

sourcandy · 10-17-2009, 01:17 AM

Your location might play a part. Your in washington, base map pulled from ECU is pressures at sea level.

AjntOrnj · 10-17-2009, 01:23 AM

Elevation here is 2376 ft on average. I am no science whiz, but does this elevation constitute that amount of boost? or lack there of?

AjntOrnj · 10-17-2009, 03:04 AM

Any other ideas out there?

ItalianGuy · 10-17-2009, 05:20 AM

Quote:

Originally Posted by AjntOrnj

If I am truly not hitting 13.5 psi, what could be preventing me from getting full boost?

It seemed like the consistent boost level was about 11 psi.

Quote:

Originally Posted by AjntOrnj

just took the car through third and couldn't get a long hard pull as I was already 15mph past said speed limit. But i didn't see the needle peak past 12psi.

Quote:

Originally Posted by AjntOrnj

Elevation here is 2376 ft on average. I am no science whiz, but does this elevation constitute that amount of boost? or lack there of?

You should be fine at that elevation. Third gear should also be fine for a pull. You most likely have a boost leak. Check all your vacuum lines.

The Beej · 10-17-2009, 05:22 AM

pressure at sea level is 14.7 psi, so if your 2k or so feet up, there is less pressure, making it harder for your turbo to make the 13.61 psi because there is less atmosphere pushing it...i guess...

AjntOrnj · 10-17-2009, 06:05 AM

I did some pretty hard pulls later on and its pretty consistent at 11 psi. I am going to check for vacuum leaks tomorrow. I will chime back in and let you guys know what I find.

van_dutch · 10-17-2009, 12:45 PM

What kind of boost gauge? How was it installed? Where does the needle sit when the car is off? Where does the needle sit when the car is idling?

gingertooth · 10-17-2009, 01:01 PM

you should come close to max by the end of 3rd???Is that were your getting your boost readings from

Unabomber · 10-17-2009, 01:04 PM

Please read the sticky threads before posting, we have on titled Gauge FAQ that answers this. Repeating of questions dilutes our search engine, please search and read the sticky threads, then post. If searching or reading the sticky threads is not your forte, please post in the newbies and faq forum.

10-16-2009, 11:25 PM	#1
AjntOrnj Scooby Newbie Member#: 211133 Join Date: May 2009 Chapter/Region: NWIC Location: WA Vehicle: 2002 Impreza WRX Midnight Blue	Just installed boost gauge, peaks at 12psi. Is this normal on a stock '02 WRX? The title says it all. * Registered users of the site do not see these ads.

10-17-2009, 12:01 AM	#6
rkramer Scooby Guru Member#: 118209 Join Date: Jun 2006 Chapter/Region: MWSOC Location: North Dakota Vehicle: 2002 WRX Sedan	13.61 is stock. I had thought it was 14 something but I doublechecked on an original map, guess not. Last edited by rkramer; 10-17-2009 at 12:08 AM.

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10-16-2009, 11:27 PM	#2
WRX Loki Scooby Newbie Member#: 208332 Join Date: Apr 2009 Chapter/Region: Tri-State Location: NYC Vehicle: 02 Silver Rex Evo3 16g EWG	14.7 for stock

10-16-2009, 11:33 PM	#3
AjntOrnj Scooby Newbie Member#: 211133 Join Date: May 2009 Chapter/Region: NWIC Location: WA Vehicle: 2002 Impreza WRX Midnight Blue	does what gear I am in affect how much boost the computer allows?

10-16-2009, 11:55 PM	#4
UkNuck Scooby Specialist Member#: 21808 Join Date: Jul 2002 Chapter/Region: E. Canada Location: National Capital Region Vehicle: 02 GroceryGettAr Nonemore Black	the gear affects engine load and THAT affects how much boost you will see

10-17-2009, 12:14 AM	#7
AjntOrnj Scooby Newbie Member#: 211133 Join Date: May 2009 Chapter/Region: NWIC Location: WA Vehicle: 2002 Impreza WRX Midnight Blue	If I am truly not hitting 13.5 psi, what could be preventing me from getting full boost? It seemed like the consistent boost level was about 11 psi.

10-17-2009, 12:46 AM	#8
evan_impreza Scooby Specialist Member#: 115276 Join Date: May 2006 Chapter/Region: South East Location: Orlando, Florida Vehicle: 04 PSM WRX p&p fp 16g -- UTI tuned	even at wot in 4th gear..?

10-17-2009, 01:00 AM	#9
AjntOrnj Scooby Newbie Member#: 211133 Join Date: May 2009 Chapter/Region: NWIC Location: WA Vehicle: 2002 Impreza WRX Midnight Blue	just took the car through third and couldn't get a long hard pull as I was already 15mph past said speed limit. But i didn't see the needle peak past 12psi.

10-17-2009, 01:17 AM	#10
sourcandy Scooby Newbie Member#: 212410 Join Date: May 2009 Location: Houston, TX	Your location might play a part. Your in washington, base map pulled from ECU is pressures at sea level.

10-17-2009, 01:23 AM	#11
AjntOrnj Scooby Newbie Member#: 211133 Join Date: May 2009 Chapter/Region: NWIC Location: WA Vehicle: 2002 Impreza WRX Midnight Blue	Elevation here is 2376 ft on average. I am no science whiz, but does this elevation constitute that amount of boost? or lack there of?

10-17-2009, 03:04 AM	#12
AjntOrnj Scooby Newbie Member#: 211133 Join Date: May 2009 Chapter/Region: NWIC Location: WA Vehicle: 2002 Impreza WRX Midnight Blue	Any other ideas out there?

10-17-2009, 05:22 AM	#14
The Beej Scooby Specialist Member#: 99677 Join Date: Nov 2005 Chapter/Region: South East Location: Greensboro, NC Vehicle: 2002 AW Impreza WRX VF-39, 06 5spd, 20psi	pressure at sea level is 14.7 psi, so if your 2k or so feet up, there is less pressure, making it harder for your turbo to make the 13.61 psi because there is less atmosphere pushing it...i guess...

10-17-2009, 06:05 AM	#15
AjntOrnj Scooby Newbie Member#: 211133 Join Date: May 2009 Chapter/Region: NWIC Location: WA Vehicle: 2002 Impreza WRX Midnight Blue	I did some pretty hard pulls later on and its pretty consistent at 11 psi. I am going to check for vacuum leaks tomorrow. I will chime back in and let you guys know what I find.

10-17-2009, 12:45 PM	#16
van_dutch Scooby Newbie Member#: 198633 Join Date: Dec 2008 Chapter/Region: NESIC Location: MA Vehicle: 2004 WRX Black	What kind of boost gauge? How was it installed? Where does the needle sit when the car is off? Where does the needle sit when the car is idling?

10-17-2009, 01:01 PM	#17
gingertooth Scooby Guru Member#: 82242 Join Date: Mar 2005 Chapter/Region: Tri-State Location: west milford, NJ Vehicle: 2005 wrx wagon wooh wooh!!!!!	you should come close to max by the end of 3rd???Is that were your getting your boost readings from

10-17-2009, 01:04 PM	#18
Unabomber Amish Rake Fighting Moderator Member#: 18062 Join Date: Apr 2002 Chapter/Region: MAIC Location: This space right here Vehicle: is available for purchasing	Please read the sticky threads before posting, we have on titled Gauge FAQ that answers this. Repeating of questions dilutes our search engine, please search and read the sticky threads, then post. If searching or reading the sticky threads is not your forte, please post in the newbies and faq forum.