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11-19-2013, 01:14 PM | #1 |
Scooby Specialist
Member#: 328635
Join Date: Aug 2012
Chapter/Region:
NWIC
Location: Portland*
Vehicle:2004 STi GTX3076R Rally Blue |
Scuby04STi's 2004 STi build 2.5 w/GTX3076
Here is a little back story on me/my build:
Back in 2004 my dad purchased a STi as well as an EVO to use at track days; I quickly fell in love with how they both functioned on the track for what they were. We all agreed that stock to stock for a track beater the EVO made more sense with its tight shifter and quick steering response (RS version), so my dad sold the STi and got a few EVO RS's for us to drive as a family. However I always had a soft spot for that rally blue STi and once you toss some "$" at its flaws you can make a MEAN track car, so when I had the choice to buy a 50k mile '04 or my dad's 15k mile EVO RS it was the STi for me (took a lot of heat on this choice). My build 20130331_091748 by Bret Stevens, on Flickr Rationalizing the build: I had a general stage 2 tune with bolt-on basics such as a catless DP, cat-back, intake, front mount, and all the typical things. After being talked into a track day that I DID NOT feel the car was ready for (slight leak in the driver side head) this happened just as I pulled onto the back straight at PIR: 2012-05-31 14.03.40 by Bret Stevens, on Flickr I was just about to head back to school so I pulled the motor assessed the damage and parked it until I could plan out what to do. So I priced out a stock block, a small stock location turbo with appropriate supporting mods (stocker was toast as well), and the labor to do it. After that gut check moment I made the choice to do the work myself and spend the labor budget on better components. Extremely happy with this choice because I know every nut/bolt on my car now and have just a few more whp then I would have had lol. Proven Power Format (Makes too much sense not to use it regardless) Location: Tuned at Perrin . . . dyno pull (video/graph) was at PSI Ambient Temp: 72.14F Elevation: unknown (few 100 feet max) Weather: 27% humidity Car: 2004 STi Dyno Info: Dyno Jet Transmission: Stock 6 speed Gear: 4th Peak HP at RPM: 424@7450 Peak Torque at RPM: 379@4300 Baseline hp/tq for a stock on same dyno: Target Boost: 21psi that was brought down to 18.5 (waiting on a surge tank) Target AFR: RICH!!! this is a safe tune until surge tank Fuel : 91 pump Engine/Power Modifications: Stock crank, Arise custom pistons 8.2:1, BC rods, OEM bearings, BC 1mm over valves/springs, BC 272 cams, ARP bolts/studs , Perrin top-feed fuel rails, 1000cc top-feed injectors, 255 fuel pump w/stock FP reg., Cosworth tgv deletes, Cosworth intake manifold, Perrin front mount, Perrin EL header (coated), Perrin "dual tube" cat-back, Perrin rotated up/down pipe (coated), Tial 44mm EWG, GTX3076R .82 (hot side coated), Perrin EBCS, OEM oil pump, Perrin AOS, Killer bee pan/pick-up/tray, OEM timing kit, a/c delete. Driveline Modifications: ACT "stage 2", OEM flywheel, and DSS Carbon drive shaft Suspension Modifications: Perrin PSRS kit, Perrin engine/transmission mounts, Perrin short shifter w/all bushings, H&R "Cup kit" coilovers , H&R front & rear sway bars, Corner weighted Other Modifications: Relocated battery, Relocated wiper fluid, Stereo delete, MOMO Carbon Kevlar fixed back seats w/stock belts, Cut front bumper w/intercooler modification, Wing delete, Homemade tow hook, Homemade hood scoop insert, Tint less ;-) Held off on posting too long already, build was back running beginning of summer 2013, but isn't done yet. Still have a few must do mods and a few I might just do for fun. Just learning the pic/video posting process (live in the country) but ill post a few video's once I figure that part out. I plan to own this car till I die and probably will never be "done" with it, looking forward to seeing what feedback I get about this build. Lots of winter projects to come (pending getting another car), all suggestions are welcome and appreciated. [/font] Updated set-up 2017: Proven Power Format Location: Tuned at PSI by Jarrod from PDX tuning Ambient Temp: unknown 60-75* Elevation: unknown (few 100 feet max) Weather: unknown Car: 2004 STi Dyno Info: Dyno Jet Transmission: 2004 STi 6 speed with '07 3rd and 4th gears 1)Gear: 4th Peak HP at RPM: 427@7000 Peak Torque at RPM: 422@4350 2)Gear: 4th Peak HP at RPM: 456@7300 Peak Torque at RPM: 462@4450 3)Gear: 3rd (clutch would not hold in 4th) Peak HP at RPM: 480@7200 Peak Torque at RPM: 450@5100 Baseline hp/tq for a stock on same dyno: Target Boost: 21psi/24psi/26psi Target AFR: unknown but all on the safe side Fuel : (1)92 pump/(2)101/(3)116 Engine/Power Modifications: Stock crank, Arise custom pistons 8.2:1, BC rods, OEM bearings, BC 1mm over valves/springs, BC 272 cams, ARP bolts/studs , Perrin top-feed fuel rails, 1300cc top-feed injectors, 255 fuel pump feeding Perrin surge tank w/Perrin FP reg. and custom hardlines, Cosworth tgv deletes, Cosworth intake manifold flipped, Boomba 75mm Throttle body, Perrin front mount w/custom piping,Tial bov, Perrin EL header, Custom bumper exit exhaust, Perrin rotated up/down pipe, Tial 44mm EWG, GTX3076R .82 (hot side coated), Perrin EBCS, OEM oil pump, Perrin AOS, Killer bee pan/pick-up/tray, OEM timing kit, a/c delete. Driveline Modifications: ACT "stage 2", OEM flywheel, and DSS Carbon drive shaft Suspension Modifications: Perrin PSRS kit, Perrin engine/transmission mounts, Perrin short shifter w/all bushings, MCS shocks, H&R front & rear sway bars, TSS Fab front/rear sub frames, TSS Fab T-bar, TSS Fab lateral link/trailing arms, Corner weighted Other Modifications: Relocated battery, Relocated wiper fluid, Stereo delete, MOMO Carbon Kevlar fixed back seats w/stock belts, Cut front bumper w/intercooler modification, Wing delete, custom radiator, custom intercooler/radiator mount. Most importantly nearly all the work was done by me at my home. Pump 92: Pump_gas by Bret Stevens, on Flickr 101: 110_octane by Bret Stevens, on Flickr Had a boost spike on the run we recorded but it was taken out on the finalized tune. 116: 116 octane by Bret Stevens, on Flickr E-85: E85 by Bret Stevens, on Flickr Engine bay: 20170710_170508 by Bret Stevens, on Flickr
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Last edited by Scuby04STi; 08-02-2018 at 05:00 PM. Reason: Updated set-up info |
11-19-2013, 01:32 PM | #2 |
Scooby Newbie
Member#: 242113
Join Date: Mar 2010
Chapter/Region:
South East
Location: Brevard (Asheville), NC
Vehicle:2004 STi, 2008 STi 2002 WRX |
Looks great man! Are you still glad you went with the STi over the Evo?
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11-19-2013, 01:51 PM | #3 |
Scooby Specialist
Member#: 328635
Join Date: Aug 2012
Chapter/Region:
NWIC
Location: Portland*
Vehicle:2004 STi GTX3076R Rally Blue |
Thank you, and yes still happy with my choice. I like both but only love one, I really like the options for modifying an STi you can do so many different things with no real hard core fab work.
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11-20-2013, 11:15 AM | #4 |
Scooby Specialist
Member#: 313952
Join Date: Mar 2012
Location: Central FL
Vehicle:2006 STi SGM DOM 3xt-r |
Those numbers are solid man, nice build for sure.
I too plan to keep my car until I die or give it to my kid and to never be done modding it. Its never-ending! Glad you finally got to post your stuff up. Keep us updated if you throw on any new mods... |
11-20-2013, 11:39 AM | #5 |
Scooby Specialist
Member#: 328635
Join Date: Aug 2012
Chapter/Region:
NWIC
Location: Portland*
Vehicle:2004 STi GTX3076R Rally Blue |
Best I can seem to do as for posting the video as of now, hate links but better than nothing. Love the way it sounds.
http://www.flickr.com/photos/109122374@N02/10947644783/ Also I figured I would post a picture of the Perrin fuel rail/ line install before that Cosworth manifold got bolted over the top of them. 2013-01-31 22.28.41 by Scuby04STi, on Flickr Was an extremely easy install, no clearance issues what so ever. Also there was more than enough line/shielding to do the job, probably because of all the possible ways you might need to run them. Only thing I wished was different would have been to have threaded ends in the rails and to use hard lines, but this design makes sense seeing the general application they needed to accommodate. |
11-20-2013, 12:09 PM | #6 |
Scooby Specialist
Member#: 313952
Join Date: Mar 2012
Location: Central FL
Vehicle:2006 STi SGM DOM 3xt-r |
I'm kind of curious about that drop off on your dyno tune sheet.
Do you feel it when driving the car? It looks like it shoots up quick, drops off and then picks back up again |
11-20-2013, 12:32 PM | #7 | |
Scooby Specialist
Member#: 328635
Join Date: Aug 2012
Chapter/Region:
NWIC
Location: Portland*
Vehicle:2004 STi GTX3076R Rally Blue |
Quote:
The quick easy way to solve that problem was to lower the boost to 18.5 keep the fuel REALLY rich and wait for the surge tank to be designed and put in. I talked to him last week and he said he ordered my pump for the tank so it shouldn't be too long before I can get the re-tune. I didn't need his to waist time on perfecting a tune that was never going to get used again. So yeah that's a very very safe 424 :-) |
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11-20-2013, 02:16 PM | #8 | |
Scooby Specialist
Member#: 313952
Join Date: Mar 2012
Location: Central FL
Vehicle:2006 STi SGM DOM 3xt-r |
Quote:
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11-20-2013, 03:42 PM | #9 | |
Scooby Specialist
Member#: 328635
Join Date: Aug 2012
Chapter/Region:
NWIC
Location: Portland*
Vehicle:2004 STi GTX3076R Rally Blue |
Quote:
Honestly not sure what it will make I didn't see how it was pulling before he dropped it to 18.5 psi because I was not able to watch the whole tuning process, actually I just dropped off the car and went back to work lol. That is also why I did a general dyno pull at another dyno so I could at least see it on a dyno for fun. As long as it looks anything like that dyno and pulls they way it does, minus the hump/dip I'm golden. Hate to wish/expect for more when my goals where less than I already got. |
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11-20-2013, 06:16 PM | #10 |
Scooby Newbie
Member#: 282972
Join Date: May 2011
Chapter/Region:
Tri-State
Location: New Jersey
Vehicle:2006 Sti cgm |
deleted my comment haha. i re-read and found my answer lol
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11-22-2013, 12:57 PM | #11 |
Scooby Specialist
Member#: 328635
Join Date: Aug 2012
Chapter/Region:
NWIC
Location: Portland*
Vehicle:2004 STi GTX3076R Rally Blue |
Favorite picture of my car, aka only non-cell phone picture of my car. Thanks to Perrin
Big Front mount by Scuby04STi, on Flickr |
11-23-2013, 06:57 AM | #12 |
Scooby Specialist
Member#: 266954
Join Date: Dec 2010
Chapter/Region:
Tri-State
Location: delaware county pa
Vehicle:04 wrx v7 sti swap agile tuned 389hp 342ftlb |
Looks nice and a solid build can't wait to see it completed
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11-23-2013, 10:44 AM | #13 |
Scooby Specialist
Member#: 313952
Join Date: Mar 2012
Location: Central FL
Vehicle:2006 STi SGM DOM 3xt-r |
Sick picture and that FMIC is HUGE
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11-23-2013, 10:53 AM | #14 |
Scooby Newbie
Member#: 310077
Join Date: Feb 2012
Chapter/Region:
MWSOC
Location: Pleasant Hill, IA
Vehicle:2007 Legacy GT SpecB DGM |
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11-23-2013, 10:54 AM | #15 |
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Member#: 374404
Join Date: Nov 2013
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I'm kind of curious about that drop off on your dyno tune sheet.
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11-25-2013, 11:02 AM | #16 | |
Scooby Specialist
Member#: 328635
Join Date: Aug 2012
Chapter/Region:
NWIC
Location: Portland*
Vehicle:2004 STi GTX3076R Rally Blue |
Quote:
As for the front mount, I was REALLY happy with how it turned out. Looks clean with no license plate mount or stupid "delete plate". Between that and the shroud I made for the bottom of the intercooler It looks like a whole different car from the way it was before. Got to love the small "free" mods. |
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12-04-2013, 04:22 PM | #17 |
Scooby Specialist
Member#: 157211
Join Date: Aug 2007
Chapter/Region:
NESIC
Location: Boston, Ma
Vehicle:2k4 stg. 2 WRX sti PSM |
Your car looks good.
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12-04-2013, 06:16 PM | #18 |
Scooby Specialist
Member#: 328635
Join Date: Aug 2012
Chapter/Region:
NWIC
Location: Portland*
Vehicle:2004 STi GTX3076R Rally Blue |
Thank you, should have more activity with it in the next few weeks. I'm getting a little oil out of the front crank/cam seals and one of those half moons on the valve cover so plan to pull it to fix that before adding the surge tank and the re-tune.
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12-12-2013, 09:09 AM | #19 |
Scooby Specialist
Member#: 358782
Join Date: Jun 2013
Chapter/Region:
MWSOC
Location: Springfield, Illinois
Vehicle:2013 STi DGM |
That front mount looks mean! I must agree without the delete or plate slot it looks much better! Can't wait to see what it puts down when you get the surge tank!
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12-12-2013, 09:54 AM | #20 |
Scooby Newbie
Member#: 141949
Join Date: Feb 2007
Chapter/Region:
TXIC
Location: Killeen, TX
Vehicle:2004 Wrx JBP |
I really like what you did to the front bumper. What exactly is it that you're using for the rubber "trim?" And is there anything keeping it from blowing off at high speed or during let's say a car wash?
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12-12-2013, 06:26 PM | #21 |
Scooby Specialist
Member#: 328635
Join Date: Aug 2012
Chapter/Region:
NWIC
Location: Portland*
Vehicle:2004 STi GTX3076R Rally Blue |
Its just that, rubber trim. We use it at my work, I took some pictures for another person on here ill post them up tomorrow when I'm on a computer. Nothing is holding it on but its self, i was going to glue it but after washing it and plenty of DD use I chose to leave it how it is. No feedback on car wash tho I hand wash it been a few sense it fit in a car wash. I have not had any issues with it moving at all.
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12-13-2013, 09:10 AM | #22 |
Scooby Newbie
Member#: 141949
Join Date: Feb 2007
Chapter/Region:
TXIC
Location: Killeen, TX
Vehicle:2004 Wrx JBP |
Ready for the pics
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12-13-2013, 09:23 AM | #23 |
Scooby Specialist
Member#: 358782
Join Date: Jun 2013
Chapter/Region:
MWSOC
Location: Springfield, Illinois
Vehicle:2013 STi DGM |
As long as you prep the surface the glue will hold well. And what's the status of the surge tank!
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12-13-2013, 11:17 AM | #24 | |
Scooby Specialist
Member#: 328635
Join Date: Aug 2012
Chapter/Region:
NWIC
Location: Portland*
Vehicle:2004 STi GTX3076R Rally Blue |
Quote:
20131125_163110 by Scuby04STi, on Flickr As for the surge tank the pump came in this week, I will go get it all on my next weekday off (so next week maybe) we are doing inventory so time off depends on that. But I will really try to get out there and grab everything. I am not 100% sure on when I will re-tune now seeing the holidays are creeping up, but if it wont be until mid January I might tighten up a few more loose ends first such as a real radiator. |
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12-14-2013, 08:29 AM | #25 |
Scooby Specialist
Member#: 358782
Join Date: Jun 2013
Chapter/Region:
MWSOC
Location: Springfield, Illinois
Vehicle:2013 STi DGM |
Are you having overheating issues with the install of the FMIC?
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