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Old 02-21-2014, 01:06 PM   #1
Motion Lab Tuning
NASIOC Vendor
 
Member#: 228856
Join Date: Nov 2009
Chapter/Region: South East
Location: AEM Infinity Trained
Default Motion Lab Tuned 2004STi 357WHP/407WTQ FPGreen w/ supporting mods on 93OCT

Shop: Motion Lab Tuning
Dyno Type: DynoCom FX5000-AWD
Temp: 55F
Boost: 23psi
Fuel: 93OCT
Target AFR: 11:1
SAE Corrections: Default Corrections
Peak HP at RPM: 357whp @ 5600 RPMs
Peak Torque at RPM: 407wtq @ 4100 RPMs
Transmission: Stock 6 speed
Gear: 5th
Engine Management: Opensource
Engine/Power Modifications:





This was a 2004STi from a few weeks ago that we finished up rebuilding the cylinder heads. He had coolant getting in the oil, so we ripped it out and dug in. The motor had been rebuilt about 10,000miles ago, but didn't upgrade from the OEM head bolts. They only rebuilt the bottom end with OEM rods, fresh bearings, and Mahle forged pistons. We ended up doing one of our 3-angle valve jobs and re-assembling with some slightly thicker Cometic head gaskets and a ARP head stud kit. We also found the up-pipe to be COMPLETELY broken in half at the flex bellow which is how we ended up with the high quality 321SS Perrin up-pipe. That free'd up some extra torque and better spool in the mid range. Now the car is running tip top, making more power than the first visit on the dyno, and holding more power up-top with the changes that were made.


Final HP/TQ with AFR and boost graph:



Follow whats going on at the shop on our Facebook page Motion Lab Tuning - Automotive - Charlotte, NC | Facebook

Thanks for looking!
Alex Goodwin
[email protected]
MotionLabTuning.com - Engineering Performance
Motion Lab on Instagram
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Last edited by Motion Lab Tuning; 02-21-2014 at 09:06 PM.
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Old 02-21-2014, 02:25 PM   #2
Back Road Runner
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Member#: 60082
Join Date: Apr 2004
Chapter/Region: MWSOC
Location: Minnesota
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2004 Forester STI
Silver

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That's good spool and lots of torque for non-E85. What's your take on the top end?
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Old 02-21-2014, 02:46 PM   #3
Motion Lab Tuning
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Default

Quote:
Originally Posted by Back Road Runner View Post
That's good spool and lots of torque for non-E85. What's your take on the top end?
Yeah this thing was spoolin pretty hard!

What are you referring to in the top end? Its still OEM cams and valves so we anticipated power leveling off even though this turbo can keep the boost up in the top end.

Thanks,
Alex Goodwin
[email protected]
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Old 02-21-2014, 03:03 PM   #4
808-wrx
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Join Date: Jun 2007
Chapter/Region: NWIC
Location: bremerton Washington
Vehicle:
2002 wrx 6speed son!
WRB

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I had similar results with a lot less motor work. Did 420awhp and then 410tq on a fp green. Ran out of injectors.
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Old 02-21-2014, 06:35 PM   #5
Motion Lab Tuning
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Quote:
Originally Posted by 808-wrx View Post
I had similar results with a lot less motor work. Did 420awhp and then 410tq on a fp green. Ran out of injectors.
This is the older style Green with the cast wheel. It also has a 2.4" inlet and I am unsure of the turbine housing size. Much prefer Blouch turbos for Subbie applications. I use the FP stuff pretty much on the Evos only these days. Car came to us with it on it though so you make the best of it! Nice smooth power, he has been having a blast with the car.

Thanks,
Alex Goodwin
[email protected]
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Old 02-21-2014, 07:31 PM   #6
Paul
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Location: south nj
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00 RSTI Coupe
Twin Scroll 2.5XTR EJ207

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why 5th gear?

Is the boost plot wavy or is it just me?
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Old 02-21-2014, 08:16 PM   #7
Scuby04STi
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Join Date: Aug 2012
Chapter/Region: NWIC
Location: Portland*
Vehicle:
2004 STi GTX3076R
Rally Blue

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Quote:
Originally Posted by Paul View Post
why 5th gear?

Is the boost plot wavy or is it just me?
I thought the same things.

More importantly I am curious about this statement in bold:


Quote:
Originally Posted by Motion Lab Tuning View Post
This was a 2004STi from a few weeks ago that we finished up rebuilding the cylinder heads. He had water getting in the coolant, so we ripped it out and dug in. The motor had been rebuilt about 10,000miles ago, but didn't upgrade from the OEM head bolts. They only rebuilt the bottom end with OEM rods, fresh bearings, and Mahle forged pistons. We ended up doing one of our 3-angle valve jobs and re-assembling with some slightly thicker Cometic head gaskets and a ARP head stud kit. We also found the up-pipe to be COMPLETELY broken in half at the flex bellow which is how we ended up with the high quality 321SS Perrin up-pipe. That free'd up some extra torque and better spool in the mid range. Now the car is running tip top, making more power than the first visit on the dyno, and holding more power up-top with the changes that were made.

Thanks for looking!
Alex Goodwin
[email protected]
MotionLabTuning.com - Engineering Performance
Motion Lab on Instagram
Typo?
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Old 02-21-2014, 09:05 PM   #8
Motion Lab Tuning
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Join Date: Nov 2009
Chapter/Region: South East
Location: AEM Infinity Trained
Default

Quote:
Originally Posted by Paul View Post
why 5th gear?

Is the boost plot wavy or is it just me?
We were testing with the dyno mechanically coupled using inertia only. 5th gear is the best for this style testing due to the gear ratio.

Quote:
Originally Posted by Scuby04STi View Post
I thought the same things.

More importantly I am curious about this statement in bold:




Typo?
Yeah that was a typo, thanks for pointing it out haha.

Thanks,
Alex Goodwin
[email protected]
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Old 02-22-2014, 08:36 AM   #9
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Aspen White

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Nice Torque #'s, any pictures of the build/finished result?
-Art
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Old 02-22-2014, 09:24 AM   #10
rexworx
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Join Date: Dec 2005
Chapter/Region: Tri-State
Location: GTX3576R 05GD, GTX3071R'd FXT
Vehicle:
GTX 3071R'd 11WRX
PPG,4.44,LSD,E85,6spdx2

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Man, I LOVE the OG Greens!!!
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Old 02-22-2014, 11:29 AM   #11
Scuby04STi
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Location: Portland*
Vehicle:
2004 STi GTX3076R
Rally Blue

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Lol good I was a tad worried for this customer for a moment. What dyno was used?

I agree about wanting a few pictures if you have them, worst part of NASIOC is wanting to check out every inch of every car lol
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Old 02-24-2014, 10:38 AM   #12
Motion Lab Tuning
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Join Date: Nov 2009
Chapter/Region: South East
Location: AEM Infinity Trained
Default

Quote:
Originally Posted by Scuby04STi View Post
Lol good I was a tad worried for this customer for a moment. What dyno was used?

I agree about wanting a few pictures if you have them, worst part of NASIOC is wanting to check out every inch of every car lol
We have a DynoCom FX5000-AWD dyno. With over 10+ years of experience you dont need to worry, we've done this a few times at this point .

No pics though, sorry to let everyone down

Thanks,
Alex Goodwin
[email protected]
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Old 03-07-2014, 03:11 PM   #13
2fst4you
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Location: White lake MI
Vehicle:
2006 Impreza Wrx
Black

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What size lb/min
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