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Old 08-21-2006, 02:16 AM   #1
drez14
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Member#: 57318
Join Date: Mar 2004
Default Church Tuned WRX using Street Tuner

I finally had my car tuned by Shawn Church using street tuner software. I guess i was the first car he has tuned using the Street tuner but but it looked like he had been using it for years. Here are the numbers.

Car: 04 WRX 2.0 91oct

Engine mods:
Turbochargers.com GT Big16G
RC 650cc Injectors
Walbro Fuel Pump
Private Label Exhaust manifold
Private Label Up-Pipe w/ no cat.
Invidia downpipe
Invidia N1 Catback w/ resonator
Private Label Front Mount Intercooler
Greddy Type-RS BOV
Injen Cold Air Intake modified to work with the front mount.
Cobb Accessport
Cobb Street Tuner
Tuned by Shawn Church @ Church Automotive

HP: 293.2 @5651 rpm
TRQ: 305.3 @4414 rpm
Boost: 21.74lbs @ 4248 rpm tapered down to ~19 lbs@4750 rpm

I will post dyno printouts tomorrow.
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Old 08-21-2006, 08:38 PM   #2
boundy3
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Member#: 54598
Join Date: Feb 2004
Chapter/Region: South East
Location: Orlando
Vehicle:
2004 WRX Sedan
WR Blue Pearl #68 STX

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Nice #'s especially on 91 oct.!!!

What type of dyno was this on, do you know what normal wrx's put down?
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Old 08-21-2006, 08:49 PM   #3
Clark Kent
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Member#: 75682
Join Date: Nov 2004
Chapter/Region: Tri-State
Vehicle:
2004 WRX

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really good numbers for a 16g
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Old 08-21-2006, 11:23 PM   #4
drez14
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Default

It was done on a dynapack so im sure its reading higher than on another dyno.

after i installed all my new turbo i just ran the Cobb OTS map modified in street tuner so that my injectors would work. Baseline with that map was 276HP w/ 311 trq.









thanks again to Shawn Church for even attempting to tune with street tuner. I highly reccomend anyone with street tuner to have him tune their car!
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Old 12-05-2006, 06:09 AM   #5
kenny08
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Join Date: Jan 2005
Chapter/Region: SCIC
Location: socal
Vehicle:
02 blue wagon
18g goodnesss

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how are you safely running 21psi on 91 octane?
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Old 12-05-2006, 08:25 AM   #6
hondaeater69
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wow nice numbers on 91 octane.
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Old 12-05-2006, 12:10 PM   #7
Zumble
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2005 Forester CGM

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Nice numbers. I thought Church was a honda guy.
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Old 12-08-2006, 03:57 PM   #8
TJRCS
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Chapter/Region: South East
Location: Atlanta, GA
Vehicle:
2008 STI
DGM

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Something isn't right.... you have a big dip right after peak torque, and another one near your peak horse power
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Old 12-08-2006, 04:03 PM   #9
dingobite
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Join Date: Mar 2005
Chapter/Region: MWSOC
Location: Lou. ky
Vehicle:
08 OBP Sti
stg2.... 279awhp, 299tq

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............ Im terrible with reading some dyno plots but the question above has me wondering to.
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Old 12-08-2006, 05:23 PM   #10
jays05
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Location: SC
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05 STI 35r + e85

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Boost control needs to be dialed in more, I think. Nice numbers nonetheless, but I think the hp/tq dips are due to boost fluctuations.
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Old 12-13-2006, 01:14 AM   #11
drez14
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Any suggestions on how to get that fixed. Im assuming more dyno time huh...
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Old 12-13-2006, 07:01 AM   #12
TJRCS
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Location: Atlanta, GA
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2008 STI
DGM

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you said you used StreetTuner, right?? Do some datalogs and report back to us. If it's only boost problem, you can dial in your WGD map and turbo dynamic maps to match the target boost. This won't mess up AFR or timing as long as they were tuned right from beginning.
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Old 12-13-2006, 10:19 PM   #13
Clark_Kent
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Location: Smallville, KS
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Quote:
Originally Posted by Zumble View Post
Nice numbers. I thought Church was a honda guy.
So did I.
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Old 12-13-2006, 11:25 PM   #14
WeldingHank
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Chapter/Region: NESIC
Location: Lawrence,ma
Vehicle:
2002 WRX Wagon
PSM

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it looks like the car is knocking in the dyno chart. if your dropping power right after peak, you can be almost assured your knocking. Peak torque is also peak cylinder pressures.
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