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Old 05-19-2011, 04:33 PM   #1
Equilibrium Tuning
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Join Date: Oct 2002
Chapter/Region: BAIC
Location: Fairfield, CA
Vehicle:
2006 STI
CGM

Default EQ - 2005 STI Simple Setup on E85 - 347whp/423ft-lbs!

Here is a 2005 STI I tuned last week on E85 that turned out really nice.

Event: Custom Tune/Dyno
Location: Equilibrium Tuning - Fairfield, CA
Ambient Temp: 80 degrees Fahrenheit
Elevation: ~100ft above sea level

Car: 2005 Subaru STI
Tuner: ED @ Equilibrium Tuning
Peak HP at RPM: 347whp @ 5000RPM
Peak Torque at RPM: 423ft-lbs @ 3750RPM
Target Boost: 23psi peak
Fuel: E85

Engine/Power Modifications:

Catless TBE
Perrin EL Headers
Perrin Inlet
Perrin CAI
DW850cc Injectors
Walbro Fuel Pump
Hallman MBC
EQ Custom Tune





*** Standard Dyno Chart Disclaimer ***

This dyno reads low and should be compared to the lower reading mustang dynos. Here are some proven numbers and trap speeds for reference:

Stock 02-05 WRX - 155-165whp
Stock 04-07 STI - 215-220whp
Stock 08-11 STI - 190-200whp

265-275whp - 107-108mph traps
300-310whp - 112-113mph traps
325-335whp - 115-116mph traps
350-360whp - 120-121mph traps

Thanks
-- Ed
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Last edited by Equilibrium Tuning; 05-20-2011 at 09:30 PM.
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Old 05-19-2011, 08:58 PM   #2
KpT KiM
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That's some nice torque. Seems like it drops off kinda fast though.
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Old 05-19-2011, 09:16 PM   #3
VladiWrX
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and lovin it

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For a stock turbo it doesn't drop off fast at all, considering how much torque its pushing. That little vf39 is all out of breath up top. Looks like a very powerful/aggressive setup for the few mods it has. I wouldn't expect that turbo to last very long at that boost level
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Old 05-19-2011, 09:27 PM   #4
Equilibrium Tuning
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2006 STI
CGM

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Quote:
Originally Posted by VladiWrX View Post
For a stock turbo it doesn't drop off fast at all, considering how much torque its pushing. That little vf39 is all out of breath up top. Looks like a very powerful/aggressive setup for the few mods it has. I wouldn't expect that turbo to last very long at that boost level
At 23psi? I bet it lasts just fine. I've had customers running around at 25psi for years with no issues. Remember its only 23psi in the mid range... it tapers off to about 15psi by redline.

-- Ed
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Old 05-19-2011, 11:29 PM   #5
DerekB707
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I wish I had torque numbers like that. It's crazy how a different type of fuel can add 100+ lbft of torque.
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Old 05-20-2011, 04:48 PM   #6
Equilibrium Tuning
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CGM

Default

Quote:
Originally Posted by DerekB707 View Post
I wish I had torque numbers like that. It's crazy how a different type of fuel can add 100+ lbft of torque.
Yep.. E85 is great stuff

-- Ed
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Old 05-20-2011, 05:28 PM   #7
SomeYoungGuy
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That is an amazing result for the stock exhaust. Was this kept for smog reasons?
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Old 05-20-2011, 09:30 PM   #8
Equilibrium Tuning
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CGM

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Hah.. sorry about that! Its not a stock exhaust. This car does have a catless TBE.

Thanks
-- Ed
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Old 05-20-2011, 11:18 PM   #9
YZ86
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Nice work! the curve looks great!
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Old 05-20-2011, 11:27 PM   #10
steve1578
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Dang that's amazing.
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Old 05-23-2011, 06:32 PM   #11
JoeTX
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2007 STi 302/350
UGM Wingless

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Just a fantastic tune (~300ft/lb at 3K! and youve still got 123ft/lb more to go!!!) the low end response has to be downright brutal. And all on a stock turbo. And has been said many times before... E85 FTW.

Is E85 in any way easier on the internals? This is the power level where Id start getting concerned about something letting go.
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Old 03-04-2012, 07:21 PM   #12
AWDDriver
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Can an STi have 400 - 500 WHP on regular gas so it can travel to anywhere and not have to located E85 gas station?
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Old 03-04-2012, 07:23 PM   #13
AWDDriver
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I need a fast STi or EVO where it can travel to anywhere on regular gas and not have to worry about E85 gas location!
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Old 03-04-2012, 07:49 PM   #14
smeerone
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DGM Phatbotti Tuned

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Quote:
Originally Posted by AWDDriver
I need a fast STi or EVO where it can travel to anywhere on regular gas and not have to worry about E85 gas location!
Just get an AP and have dual tunes, make sure ure injectors aren't too big so it'll run good on pump.
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Old 03-04-2012, 08:18 PM   #15
Kastley85891
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Needs an 05STI

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Awesome,, easy mods great power/TRQ
Do you feel much benefit to the catless?
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Old 03-05-2012, 10:51 AM   #16
iMpOrTz_
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i have similar set up but not on e85 though
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Old 03-05-2012, 10:54 AM   #17
Irv Weissmanhowerton
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Phatbotti Tuning

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holy stock turbo tq, wow, that is impressive for such simple mods, more people need to see what e85 can do for us
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Old 03-05-2012, 12:40 PM   #18
ArSoN9
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Nice work EQ this really shows off the benefits from E85 and might show a few people that you dont need to swap out the stock turbo to hit these kind of numbers...Just a fuel pump and injectors..

It would make a lot more sense for those looking to get safer power while allowing the performance to be pushed further than on pump gas and meth even
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Old 03-05-2012, 12:44 PM   #19
stu
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that is impressive for stock turbo. Keep up the good work.
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Old 03-05-2012, 01:18 PM   #20
wrxsubiemod
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Phatron tuned

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I'm dumb,

I was looking all through his mod list to find what turbo he was using lol
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Old 03-05-2012, 10:28 PM   #21
Coreycarlile911
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Quote:
Originally Posted by Equilibrium Tuning View Post
Here is a 2005 STI I tuned last week on E85 that turned out really nice.

Event: Custom Tune/Dyno
Location: Equilibrium Tuning - Fairfield, CA
Ambient Temp: 80 degrees Fahrenheit
Elevation: ~100ft above sea level

Car: 2005 Subaru STI
Tuner: ED @ Equilibrium Tuning
Peak HP at RPM: 347whp @ 5000RPM
Peak Torque at RPM: 423ft-lbs @ 3750RPM
Target Boost: 23psi peak
Fuel: E85

Engine/Power Modifications:

Catless TBE
Perrin EL Headers
Perrin Inlet
Perrin CAI
DW850cc Injectors
Walbro Fuel Pump
Hallman MBC
EQ Custom Tune





*** Standard Dyno Chart Disclaimer ***

This dyno reads low and should be compared to the lower reading mustang dynos. Here are some proven numbers and trap speeds for reference:

Stock 02-05 WRX - 155-165whp
Stock 04-07 STI - 215-220whp
Stock 08-11 STI - 190-200whp

265-275whp - 107-108mph traps
300-310whp - 112-113mph traps
325-335whp - 115-116mph traps
350-360whp - 120-121mph traps

Thanks
-- Ed

Dang this is my set up minus e85 and headers witch im looking into getting this summer with ewg hope my numbers are close to yours did you ever have your car at just stage 2 would like to know the difference to what ya have now not numbers but just how it drives
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