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Old 01-05-2009, 08:55 PM   #1
Subieformance_Guy
Scooby Newbie
 
Member#: 108716
Join Date: Feb 2006
Chapter/Region: South East
Location: Swannanoa, NC
Vehicle:
2004 2.1L, PT 6069
480@30psi Subarus-R-Us

Post Boxer4 tuned 04 wrx

Finally got around to dynoing the new rex today and have mixed feelings about it. The car runs great dont get me wrong and I know they are just numbers but figured with a big tmic it would put down more than my 02 did with a fmic. The 02 had close to the same mods being a vf39 (I know was supposed to be a evo3 16g but it went out on me and a a 39 was a replacement for the time being). With the fmic it put down 235awhp and 240awtq also tuned by boxer4. I had a post on here a couple months back about it. Just figured Id post up the graph for yall to look at and see what you think.

Mods:
VF39
Sti Pinks
BPM Turboback
Cobb SF Intake
Perrin TMIC
Walbro 255
Megan Racing unequal-length header and up-pipe
All perrin silicone hoses and boots
Prodrive BCS
Perrin Crank Pulley
Accessport V.1

Those are the major mods I can think of theres also alot of small things like a catch can and watnot but you get tha idea. Was tuned to 20lbs and taper to 17 same as my 02 was. Car was owned by blinger here on nasioc and he wasnt sure what it put down due to some issues with the dyno that day. Like I said Im happy with the tune feels alot better than my old one did just figured it wouldve done better I guess you cold say.


Shows the hp on the side and Air/Fuel


Shows the tq on the side and Air/Fuel
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Old 01-05-2009, 10:27 PM   #2
4ST-AIR
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Member#: 148681
Join Date: May 2007
Chapter/Region: MWSOC
Location: WI
Vehicle:
TBD Looking for STI
Back in the Game!

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Do you have one that was done with the smoothing on? That AFR scares me. Did you have a Pre Dyno Inspection done before the tune to make sure you had no boost leaks? That's a Mustang Dyno so numbers wise your pretty much looking where you should be might be more on the table but that AFR is all over.
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Old 01-06-2009, 12:16 AM   #3
socalLGT
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Member#: 89752
Join Date: Jun 2005
Chapter/Region: SCIC
Location: On the dyno at Yimi Sport
Vehicle:
08 STI
SWP

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That is extremely lean in the midrange Also boost overshoots the target and is then pulled down excessively, resulting in the big peak then dip right after that. As for the peak numbers it really just depends on how that particular dyno reads. If it is a very low reading Mustang, they are roughly right. If it isn't then they are pretty low.
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Old 01-06-2009, 12:27 AM   #4
treystoys
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Member#: 97436
Join Date: Oct 2005
Chapter/Region: South East
Location: Metairie, Louisiana
Vehicle:
03 WRX stage 2.2
white/w/ce28n's

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Man you really need to have that looked over by someone else, or post some logs from a 3rd gear pull. For one, I think mid to high 11 afrs in the upper rpm is a tad high, second, the afrs should surely be a good bit more stable from peak torque on. Those large dips your seeing after peak torque, and the dip in hp in the same rpm range is from the lack of fuel in the meat of your powerband. That, too me can't possibly drive too well.

Trey
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Old 01-06-2009, 12:28 AM   #5
robbieshonda
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Member#: 122306
Join Date: Aug 2006
Chapter/Region: South East
Location: On the Dyno NC
Vehicle:
2002 Sti PTE 6262
Interlagos Blue 551/441

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Yeah scary afr's and really rough graph. Give it some fuel and Im sure it would be a better ride.
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Old 01-06-2009, 06:23 PM   #6
Subieformance_Guy
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Member#: 108716
Join Date: Feb 2006
Chapter/Region: South East
Location: Swannanoa, NC
Vehicle:
2004 2.1L, PT 6069
480@30psi Subarus-R-Us

Default

I dont have one with the filtering on but yeah I didnt like how the air/fuel was kinda erratic either. As far as leaks it's sound I looked it over on a rack and it's all good and spotless I might add. I do wanna datalog but need to find a laptop to do it with cause theres some other stuff Id like to look at as well and see whats going on. I do have another map coming from Tim Bailey and gonna have it dynoed as well to see how it turns out. I think it's got alittle more potential in it esp looking at the air/fuel now and just wanna get the most possible outta it.
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