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Old 07-13-2006, 03:16 PM   #1
benw
Scooby Specialist
 
Member#: 103320
Join Date: Dec 2005
Location: Oklahoma City
Vehicle:
2005 wingless
aspen white

Default question regarding knock event on STi

Car is 05 STi, installed Invidia bellmouth DP and N1 catback and the car was flashed to AP stage 2. However I only make ~15 psi in 4th gear and barely 16 in 5th. Shouldn't I be at 17 or maybe a bit more?

Unrelated, I did a datalog and my knock correction was 5-6 until 4,000 when it went down to 1. Then around 4500 it climbed back up to 5-7. Is this a knock event I should be wary of?
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Old 07-16-2006, 04:57 PM   #2
JOWEE
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Member#: 103092
Join Date: Dec 2005
Chapter/Region: MWSOC
Location: Lakemoor, IL
Vehicle:
06 sti
steel grey

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Quote:
Originally Posted by benw
Car is 05 STi, installed Invidia bellmouth DP and N1 catback and the car was flashed to AP stage 2. However I only make ~15 psi in 4th gear and barely 16 in 5th. Shouldn't I be at 17 or maybe a bit more?

Unrelated, I did a datalog and my knock correction was 5-6 until 4,000 when it went down to 1. Then around 4500 it climbed back up to 5-7. Is this a knock event I should be wary of?
I have the same setup on my 06 and the car was detonating, the cure was a custom tune.when i was getting ready to leave another sti was having the same problem. I am still having a problem with hesitation between 2500 and 3000rpm at very lite throttle.As far as boost i run 18.5 psi and taper back to 15 by redline on 93, and on 100octane 21.5 psi.
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Old 07-16-2006, 05:09 PM   #3
06rexwagon
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Member#: 114730
Join Date: May 2006
Chapter/Region: SWIC
Location: Albuquerque, NM
Vehicle:
2006 WRX Limited Wag
9.9@142

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If you're not seeing negative knock correction, you should be ok. The car is doing what it is supposed to do.
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