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Old 12-27-2012, 08:59 AM   #1
Louie_Franco
Scooby Newbie
 
Member#: 340910
Join Date: Dec 2012
Chapter/Region: Tri-State
Location: Plainsboro, NJ
Vehicle:
07 WRX LTD
Urban Grey Metallic

Default FPHTA68 & DW750cc map, anyone?

Well, I just purchased a vehicle with a tune that makes me a little uncomfortable. It's running 20 pounds of boost in every gear, at a 10.0 WOT AFR on a 2007 wrx sedan, stock motor & trans.

I don't have money for a dyno tune, as I just dropped a ton on purchasing the vehicle several days ago. Any help would be greatly appreciated.

It's mod list:
HTA68 turbo
TurboXS front mount intercooler
TurboXS RFL blow off valve
TurboXS MBC
ACT 6 puck sprung clutch
ACT flywheel
Walbro 255 lph fuel pump

Deatschwerks 750 cc injectors
Invidia cat-back
Invidia up pipe
Invidia catted down pipe
Eibach lowering springs
SPT short ram intake
AEM wide band a/f gauge
Autometer EGT gauge
Autometer boost gauge
Cobb Accessport

I don't care much about power at this point, I just want it to be safe. Thanks very much in advance.
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Old 12-27-2012, 07:50 PM   #2
SkateAndDestroy
Scooby Specialist
 
Member#: 133893
Join Date: Dec 2006
Chapter/Region: Tri-State
Location: Red Bank, NJ
Vehicle:
JBP 04 Forester XT
PSM 02 WRX Wagon

Default

If you are running that rich under WOT, I would have it checked for leaks, the tune might be fine.

Plug in your Accessport, and under the Live Data section, what does A/F Correction A, B, C, and D say? What does the Dynamic Advance Multiplier say?

Could you take a log with the Accessport and post it up?

I saw another post where you said Ptuning did the tune...did you mean Precision Tuning in Lakewood, NJ or Ptuning in Virginia?
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Old 12-28-2012, 10:40 AM   #3
Cobb Tuning
NASIOC Vendor
 
Member#: 4803
Join Date: Mar 2001
Location: Austin, DFW, Portland, SOCAL
Default

Quote:
Originally Posted by Louie_Franco View Post
Well, I just purchased a vehicle with a tune that makes me a little uncomfortable. It's running 20 pounds of boost in every gear, at a 10.0 WOT AFR on a 2007 wrx sedan, stock motor & trans.

I don't have money for a dyno tune, as I just dropped a ton on purchasing the vehicle several days ago. Any help would be greatly appreciated.

It's mod list:
HTA68 turbo
TurboXS front mount intercooler
TurboXS RFL blow off valve
TurboXS MBC
ACT 6 puck sprung clutch
ACT flywheel
Walbro 255 lph fuel pump

Deatschwerks 750 cc injectors
Invidia cat-back
Invidia up pipe
Invidia catted down pipe
Eibach lowering springs
SPT short ram intake
AEM wide band a/f gauge
Autometer EGT gauge
Autometer boost gauge
Cobb Accessport

I don't care much about power at this point, I just want it to be safe. Thanks very much in advance.
With that many mods, you really should give the car a once-over by an experienced Subaru performance shop. How does the car run in general? How about at WOT? Any hesitation, stumbles, etc.?

What does the AEM gauge read at idle? In closed loop? I would compare the reading at idle/closed loop to the front o2 sensor (which can be viewed/logged via AccessPORT with the A/F Sens 1 Ratio monitor). As SkateAndDestroy mentioned, you can check your long-term fuel trims (A/F Learning 1 A,B,C,D) if you have had a good amount of driving since reflashing a map, resetting ECU or disconnecting the car's battery. Generally speaking, each of these trims should be within +/- 5% or so.

Bill
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Old 01-01-2013, 09:34 PM   #4
mikeydrives1
Scooby Specialist
 
Member#: 262117
Join Date: Oct 2010
Chapter/Region: Tri-State
Vehicle:
2001 Forester
STi II type M

Default

Get some logs and post them up. 10.0 AFR isnt motor ending, but that is a tad rich and can slowly harm motor components over time as unburnt gas ends up washing down cyl walls, which clears away oil and lets metal on metal abrasion occur slowly, scratching the walls . Even some reputable tuners wont go past 10.5 when tuning for a very rich mixture. The optimal range is around 11.1 for most Top mounts , even up to 11.4 with a FMIC because of how much cooler the charge is.



Listen to skatendestroy, he is an expert with tuning these 68HTA's.
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