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Old 03-28-2009, 12:38 PM   #1
STiyiyi
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Member#: 88067
Join Date: May 2005
Chapter/Region: NWIC
Default STiyiyi's 2005 STi

I have been lurking around this thread for some time now while my build has been going on over the last 4 years. My car was primarily built as a street/show car but I wanted it to have balance in all four areas, street appeal both inside as well as outside, power, handling and stereo.

I made the current issue of Subiesport (issue #25) but I was always curious what the car would put down not only on the dyno but also at the track. I have a completely stock motor including the heads, clutch (for now), driveline and axles. I realize that I am rolling the dice when it comes to breaking something but my power goals and curiosity have been achieved and the car may not see the dragstrip again so I am not planning on a major motor build. For those of you not familiar with the Turbonetics GT-K 500, its power band is somewhere between a Garrett GT30R and a GT35R. My stock motor has always been an over achiever and based on the results, it still is. Here are some facts and pics showing those results.

Here is a list of my current power mods:

Numbers
Dyno: Dyno Dynamics @ Performance Race Engineering
Tuner: Bobby Wintrode
Wheel HP: Meth 438.7
Wheel TQ: Meth 440
Boost: 26psi Meth
Wheel HP Q16 462
Wheel TQ Q16 460
Boost: 29psi Q16
Ambient Temp: 54
Elevation: Sea Level

Car Info
Year: 2005
Engine Management: Cobb AP V2
Turbo: Turbonetics GT-K 500
Intercooler: Treadstone FMIC
Meth Kit: Snow Performance Stage 2
Injectors: Deatschwerkz 850 side feed
Intake/Inlet: Treadstone 3.5" with K&N filter
Headers: Cusco exhaust manifold
Uppipe: Treadstone with Tial 44 EWG
Downpipe: Treadstone
CBE: HKS Carbon-Ti

Other Power Mods:
Tial 50mm Q series BOV
Walbro 255 lph fuel pump
NGK one step colder plugs
Turbosmart eBoost 2 EBC
Go Fast Bits underdriven pulley set
Mishimoto polished aluminum radiator
GrimmSpeed PnP intake manifold
GrimmSpeed TGV deletes
GrimmSpeed 8mm phenolic spacers
Tarr methanol (100% mix)






The car as it currently looks






Turbonetics GT-K 500 turbo


The pump/meth dyno results @26psi


The Q16 race gas dyno results @29psi



These are the last three pulls at Portland International Raceway (PIR) last night when my tuner turned driver, Bobby Wintrode, tested the car in the 1/4 mile. I have also posted a video of two of those runs. Bobby made 6 runs last night on the Q16 race gas map but limited the boost to no more than 27psi. Every one of those runs showed successive improvement culminating with the final run at 11.993 at a trap speed of 118.82. Bobby hopes to get into the 11.7 range @ 29psi when we return to PIR.


The 12.206 run against my very good buddy and Team Vanquish teammate Billy Secco. Billy's WRX is one outstanding performer.


The 11.993 run

I apologize in advance for the lousy video but that's what you get when you try to watch and film at the same time.

In conclusion I want to reiterate that this car is not supposed to be a top notch dragster. It is primarily a street/show car but one with teeth. I have added over 500 lbs. of stereo goodies to the back end for a net car weight of 3776 lbs. Otherwise I would be looking at 1/4 mile times somewhere in the vicinity of 11.2-11.4. I have no regrets though as the car is a marvel to drive anywhere.
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Last edited by STiyiyi; 04-06-2009 at 04:22 PM.
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Old 03-28-2009, 12:52 PM   #2
blowbyu24
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Member#: 84482
Join Date: Apr 2005
Chapter/Region: Tri-State
Location: PA / Element Tuning
Vehicle:
2005 STI.UR gt4088r
E85 pro comp sti

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you have put a lot of nice work into the car....congrats!
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Old 03-28-2009, 04:18 PM   #3
STiyiyi
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Quote:
Originally Posted by blowbyu24 View Post
you have put a lot of nice work into the car....congrats!
Thanks man. I have followed many of your posts and threads over the past year and I know you know a thing or two about power.
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Old 03-28-2009, 05:44 PM   #4
evan_impreza
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Member#: 115276
Join Date: May 2006
Chapter/Region: MWSOC
Location: Joplin, MO
Vehicle:
04 PSM WRX -sold:(
98 RS- WRX swap complete!

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You have built/own my favorite Subaru period. I mean it. Best.. Ever
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Old 03-28-2009, 06:05 PM   #5
Equilibrium Tuning
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Chapter/Region: BAIC
Location: Fairfield, CA
Vehicle:
2006 STI
CGM

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Looks like a very nice car but the track numbers just don't match up to the power its putting down. Did your tuner log the car at the track?

-- Ed
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Old 03-28-2009, 06:55 PM   #6
STiyiyi
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Quote:
Originally Posted by Vaus View Post
Looks like a very nice car but the track numbers just don't match up to the power its putting down. Did your tuner log the car at the track?

-- Ed
Hey Ed,

This might clarify things a bit more. While at P-R-E yesterday to have the custom meth reservoir installed, we weighed the car and came up with 3776 lbs. If my math is coorect, that's over 500 lbs. more than the stock '05 STi. If the formulas is correct in that for every 100 lbs. you add to the car you lose a tenth in the quarter mile, the car would have at the very least hit 11.6 which would have put it right in the ballpark.

Bobby did not do any data logging last night. He was purely driving.

Here's a few pics of most of that added weight.





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Old 03-28-2009, 06:57 PM   #7
STiyiyi
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Quote:
Originally Posted by evan_impreza View Post
You have built/own my favorite Subaru period. I mean it. Best.. Ever
I appreciate the comps Evan. There's a lot of company out there for that kind of honor.
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Old 03-28-2009, 07:05 PM   #8
*03wRx*
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Chapter/Region: NWIC
Location: Hillsboro, OR
Vehicle:
2004 Fast tuned
470hp/550tq FordLightning

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Had an awesome time last night Jeff, glad that you made it in the 11's with such a heavy car lol. I will be there soon lol. but I will be satisfied with 12.6's for a 2.0L w/VF39
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Old 03-28-2009, 07:09 PM   #9
STiyiyi
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Quote:
Originally Posted by *03wRx* View Post
Had an awesome time last night Jeff, glad that you made it in the 11's with such a heavy car lol. I will be there soon lol. but I will be satisfied with 12.6's for a 2.0L w/VF39
Thanks Billy. I'm being real nice to you now so when you get your STi drive train swap and that stock location GT35R and blow by me you'll be real nice to me in return!
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Old 03-28-2009, 07:10 PM   #10
*03wRx*
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Location: Hillsboro, OR
Vehicle:
2004 Fast tuned
470hp/550tq FordLightning

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I have been searching quarter mile calculators, and seems to be pretty much on the nail. Assuming bobby is about 250 or under. that puts the cars weight at 4025 with him in it. at 462whp should produce 11.985897684018232 e/t
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Old 03-28-2009, 07:40 PM   #11
evan_impreza
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Join Date: May 2006
Chapter/Region: MWSOC
Location: Joplin, MO
Vehicle:
04 PSM WRX -sold:(
98 RS- WRX swap complete!

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Quote:
Originally Posted by STiyiyi View Post
I appreciate the comps Evan. There's a lot of company out there for that kind of honor.
It is a well deserved compliment. Ive seen your car on here a lot in the past year or so and when I just saw it in scoobysport it confirmed that it is definitely my favorite. So amazing! Perfect car!
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Old 03-28-2009, 08:16 PM   #12
mxpunk
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Graphite Gray

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how much does it weigh??
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Old 03-28-2009, 08:29 PM   #13
STiyiyi
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Quote:
Originally Posted by mxpunk View Post
how much does it weigh??
3776 lbs.
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Old 03-28-2009, 09:10 PM   #14
stamps31757
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PSM

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Thats a beautiful engine bay.
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Old 03-28-2009, 09:20 PM   #15
STiyiyi
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Quote:
Originally Posted by stamps31757 View Post
Thats a beautiful engine bay.
Thanks. I do have a few other things in mind to finish the look. I am going to replace the windshield washer reservoir with a matching meth reservoir and replace many of the stock hoses with braided stainless steel and AN fittings.
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Old 03-28-2009, 09:22 PM   #16
ARBoost
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Join Date: Oct 2008
Chapter/Region: MAIC
Location: Westminster, Maryland
Vehicle:
2005 STI CGM
361hp/370tq Done by Jorge

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Those rims are sick! Wish i had them .
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