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Old 05-14-2020, 05:30 PM   #1
acheung
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Member#: 118389
Join Date: Jun 2006
Default Most built 4eat thread?

Hi,
Been part of these forums for quite awhile, over time i've built up my 2004 wrx. I wanted to start a thread to see what are some of the bigger 4eat builds members have done. I can start with sharing mine...

Current setup:
2004 wrx (original, single owner)

Engine
Woolman Performance Signature Build
- EJ257 99.75 Machine Block
- 79mm Induction hardened Crankshaft
- JE FSR pistons
- Maxwell/Manley +2mm H beam rods
- King Race bearings
- JE Pro Seal 0.039 Head Gaskets
- ARP 625 Head studs

Outfront Motorsports Heads
- EJ20 heads
- GSC P-D WRX S2 cams 272/272 Billet
- GSC P-D Beehive valve springs w/titanium retainer valvetrain kit
- GSC chrome polished intake valve (36 mm STD head)
- GSC chrome polished super alloy exhaust valve (32mm STD head)
- GSC manganese bronze exhaust valve guide stopper style
- GSC manganese bronze intake valve guide stopper style
- Stage 1 Head porting
- Modified combustion chamber from EJ20 to EJ25

Brian Crower Adjustable Cam gears
Killer B oil pickup and baffle
Cosworth high pressure oil pump
Port and Polished WRX intake manifold
Grimmspeed P&P exhaust manifold and crossover
Perrin Garrett GTX3076r 0.82 Rotated Kit
- Perrin Uppipe
- Tial Q BOV
- Tial MV-R wastegate (11psi spring)
- Perrin catless downpipe w/plumbed dumptube
- Perrin FMIC kit
Grimmspeed PnP turbo
Grimmspeed turbo coating
Grimmspeed EBCS
Kartboy Pitchstop
Grimmspeed lightweight flywheel
Cobb Subaru 4 Bar Map sensor (@Surgeline)

Fuel
- Feed line> golan inline filter>3>1>4>2>Aeromotive FPR>Zeitronix>Return line
- F4M PTFE custom fuel lines with AN fittings
- Aeromotive FPR
- Aeromotive fuel rails
- Injector Dynamics 1300cc top feed injectors
- Golan 40micron fuel filter
- Cobb Tuning custom fuel pump
- Aeromotive 340 fuel pump
- AEM high flow in-tank fuel pump (320lph)
- Double pumper setup with hobbs switch and relay (10psi actuation point)

Drivetrain
- IPT modified 4eat
- Protorque high stall torque converter (4500 stall)
- IPT modified valvebody
- B&M Transmission cooler
- Driveshaft shop carbon fiber driveshaft
- Driveshaft shop level 5 (750hp) front axles
- Driveshaft shop level 5 (750hp) rear axles
- Cusco 1.5way LSD rear differential (R160)

Suspension
- Tokico D-spec struts w/RCE yellow springs
- 04 group N rear tophats
- Scooby921 strut spacers, Saggy butt shims (-25”)
- Whiteline com-c front tophats
- Whiteline ALK
- MSI billet lateral links with graphite bushings
- STI front control arms
- Whiteline 22mm front swaybar
- Whiteline 24mm adjustable rear swaybar
- Kartboy front endlinks, Whiteline rear endlinks, Kartboy endlink spacers

Other
- 2015 STI 13:1 steering rack
- F4M High pressure steering lines w/AN fittings, F4M Low pressure steering lines w/AN fittings
- JDM spec C power steering pump w/AN fittings
- Setrab oil cooler (M22/-10AN) w/custom lines
- Mocal oil filter adapter with (185F) thermostat
- Custom Aeroequip Starlite (-8AN) oil lines
- Valve covers w/AN fittings
- Mishimoto aluminum coolant expansion tank
- Koyo aluminum radiator
- Stoptech Big Brake Kit, ST40 front calipers, 332x32mm two piece front rotors, ST22 rear calipers, 328x28mm two piece rear rotors, Hawk HPS brake pads, Stainless steel brake lines
- Gramlight 57DR 18x9.5 +38mm 5x100 Black
- Michelin Pilot Sport 4s 245/35/18

Interior
- AEM Fuel pressure gauge (52MM)
- PLX multi-gauge (52MM), Boost, AFR, Transmission Temperature, EGT, Oil Pressure
- Pioneer deck, MB quart reference series front speakers, Rockford Fosgate Power 400W, 4 Channel AMP and subwoofer


Sept 2018 – CA91/e70/e80 maps and tune by Surgeline (a little over 400awhp on e85 @26psi)
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Old 05-14-2020, 06:10 PM   #2
Scuby04STi
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Location: Portland*
Vehicle:
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Have you taken thing to the track at all? Curious what "a little over 400whp" is on their dyno in reference to traps? Been forever sense I had a solid reference.
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Old 05-14-2020, 06:16 PM   #3
acheung
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Quote:
Originally Posted by Scuby04STi View Post
Have you taken thing to the track at all? Curious what "a little over 400whp" is on their dyno in reference to traps? Been forever sense I had a solid reference.


Hi, I have tracked it on a previous build. Not since the engine update and fresh tune.
Have not dragged it yet. Car feels very responsive... with the head build and the high stall TC set for the powerband around 4K, once it hits you can really feel the difference and not very laggy. This is my daily driver, so commuting around town feels pretty normal. Some nuances of course d/t cams and 4eat tune for such a build, but overall definitely a commutable car!
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Old 05-14-2020, 10:50 PM   #4
silversurfer05
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Join Date: Aug 2013
Chapter/Region: South East
Location: broward county, Florida
Vehicle:
2009 09 wrx delivery
Dgm

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Quote:
Originally Posted by acheung View Post
Hi,
Been part of these forums for quite awhile, over time i've built up my 2004 wrx. I wanted to start a thread to see what are some of the bigger 4eat builds members have done. I can start with sharing mine...

Current setup:
2004 wrx (original, single owner)

Engine
Woolman Performance Signature Build
- EJ257 99.75 Machine Block
- 79mm Induction hardened Crankshaft
- JE FSR pistons
- Maxwell/Manley +2mm H beam rods
- King Race bearings
- JE Pro Seal 0.039 Head Gaskets
- ARP 625 Head studs

Outfront Motorsports Heads
- EJ20 heads
- GSC P-D WRX S2 cams 272/272 Billet
- GSC P-D Beehive valve springs w/titanium retainer valvetrain kit
- GSC chrome polished intake valve (36 mm STD head)
- GSC chrome polished super alloy exhaust valve (32mm STD head)
- GSC manganese bronze exhaust valve guide stopper style
- GSC manganese bronze intake valve guide stopper style
- Stage 1 Head porting
- Modified combustion chamber from EJ20 to EJ25

Brian Crower Adjustable Cam gears
Killer B oil pickup and baffle
Cosworth high pressure oil pump
Port and Polished WRX intake manifold
Grimmspeed P&P exhaust manifold and crossover
Perrin Garrett GTX3076r 0.82 Rotated Kit
- Perrin Uppipe
- Tial Q BOV
- Tial MV-R wastegate (11psi spring)
- Perrin catless downpipe w/plumbed dumptube
- Perrin FMIC kit
Grimmspeed PnP turbo
Grimmspeed turbo coating
Grimmspeed EBCS
Kartboy Pitchstop
Grimmspeed lightweight flywheel
Cobb Subaru 4 Bar Map sensor (@Surgeline)

Fuel
- Feed line> golan inline filter>3>1>4>2>Aeromotive FPR>Zeitronix>Return line
- F4M PTFE custom fuel lines with AN fittings
- Aeromotive FPR
- Aeromotive fuel rails
- Injector Dynamics 1300cc top feed injectors
- Golan 40micron fuel filter
- Cobb Tuning custom fuel pump
- Aeromotive 340 fuel pump
- AEM high flow in-tank fuel pump (320lph)
- Double pumper setup with hobbs switch and relay (10psi actuation point)

Drivetrain
- IPT modified 4eat
- Protorque high stall torque converter (4500 stall)
- IPT modified valvebody
- B&M Transmission cooler
- Driveshaft shop carbon fiber driveshaft
- Driveshaft shop level 5 (750hp) front axles
- Driveshaft shop level 5 (750hp) rear axles
- Cusco 1.5way LSD rear differential (R160)

Suspension
- Tokico D-spec struts w/RCE yellow springs
- 04 group N rear tophats
- Scooby921 strut spacers, Saggy butt shims (-25Ē)
- Whiteline com-c front tophats
- Whiteline ALK
- MSI billet lateral links with graphite bushings
- STI front control arms
- Whiteline 22mm front swaybar
- Whiteline 24mm adjustable rear swaybar
- Kartboy front endlinks, Whiteline rear endlinks, Kartboy endlink spacers

Other
- 2015 STI 13:1 steering rack
- F4M High pressure steering lines w/AN fittings, F4M Low pressure steering lines w/AN fittings
- JDM spec C power steering pump w/AN fittings
- Setrab oil cooler (M22/-10AN) w/custom lines
- Mocal oil filter adapter with (185F) thermostat
- Custom Aeroequip Starlite (-8AN) oil lines
- Valve covers w/AN fittings
- Mishimoto aluminum coolant expansion tank
- Koyo aluminum radiator
- Stoptech Big Brake Kit, ST40 front calipers, 332x32mm two piece front rotors, ST22 rear calipers, 328x28mm two piece rear rotors, Hawk HPS brake pads, Stainless steel brake lines
- Gramlight 57DR 18x9.5 +38mm 5x100 Black
- Michelin Pilot Sport 4s 245/35/18

Interior
- AEM Fuel pressure gauge (52MM)
- PLX multi-gauge (52MM), Boost, AFR, Transmission Temperature, EGT, Oil Pressure
- Pioneer deck, MB quart reference series front speakers, Rockford Fosgate Power 400W, 4 Channel AMP and subwoofer


Sept 2018 Ė CA91/e70/e80 maps and tune by Surgeline (a little over 400awhp on e85 @26psi)
Was the tune conservative? Im at 390-400 dyno jet at 18 psi on a 60-1 on 93
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Old 05-14-2020, 10:58 PM   #5
acheung
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Quote:
Originally Posted by silversurfer05 View Post
Was the tune conservative? Im at 390-400 dyno jet at 18 psi on a 60-1 on 93


I think the tune was conservative based on the builds potential, limitation was the stock 4eat ecu.
As you can see with the build components, i should be easily pushing 450-500 whp (if not more).
Prior to this tune, with stock ecu and no speed density, we were limited to 24.5 psi max boost
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Old 05-14-2020, 10:59 PM   #6
acheung
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... we also donít have 93 out here in CA. So pretty limited on how high we can turn it up with CA91 (which is why my high boost map is with e85).
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Old 05-15-2020, 02:53 AM   #7
silversurfer05
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Join Date: Aug 2013
Chapter/Region: South East
Location: broward county, Florida
Vehicle:
2009 09 wrx delivery
Dgm

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Quote:
Originally Posted by acheung View Post
I think the tune was conservative based on the builds potential, limitation was the stock 4eat ecu.
As you can see with the build components, i should be easily pushing 450-500 whp (if not more).
Prior to this tune, with stock ecu and no speed density, we were limited to 24.5 psi max boost
I know what you mean, the transmission wants to shift before red line. I had identical mods from a different shop transmission wise. They told me it was perfectly fine to use the 1 2 3 Drive method to shift at my preferred rpm. Never had an issue doing so. It has to he conservative imo since im making similar numbers on 93 compared to your 85 tune. The 4eat is really quite tough. You do have a lot of potential in this set up
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Old 05-15-2020, 01:31 PM   #8
acheung
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Yes, I believe Iím at the max of what the stock ecu can do. In order for me to maximize my build potential, I think Iíd have to go open source/stand alone ECU.
Anybody else run into similar issues with their bigger 4eat build and tune?
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Old 05-17-2020, 03:41 PM   #9
Fierysun
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Chapter/Region: SCIC
Location: So Cal
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2005 Subaru STI
2003 EJ207 S204 Wagon

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Quote:
Originally Posted by acheung View Post
Yes, I believe I’m at the max of what the stock ecu can do. In order for me to maximize my build potential, I think I’d have to go open source/stand alone ECU.
Anybody else run into similar issues with their bigger 4eat build and tune?

The ECU is not the limitation. If you are capped at 24.5psi, you need to run an aftermarket MAP sensor to go beyond that.

However, there are tuning issue with the 4EAT because you can't lock (doesn't down shift to 2nd or upshift to 4th) it in 3rd. So the tune is done in 2nd, which is less than ideal, because it sweeps through the RPM's too quickly for a solid/safe tune. Also, launching from a dig sucks even with a 4K+ stall. You can't just floor it, you need to hold the brakes and bring the RPM's up to stall speed than go, otherwise it's a dog off the line.

Also, a built 4EAT has a torque limitation of around 500btq (not wheel but at crank) and has issues cracking the case supporting the front diff. This transmission is not designed for this level and beyond level of performance.

Btw, my 4EAT is a IPT with Modena front torsen diff, billet accumulators, 4K stall, and running through 05-07 STI axles, 5x114.3 hubs, and R180 . The safest tune that Yimisport could do is 365whp/353wtq in 2nd. Which is leaving around 30+whp/wtq on the table from my EJ207 setup.

Last edited by Fierysun; 05-17-2020 at 03:56 PM.
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Old 05-17-2020, 04:09 PM   #10
acheung
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Quote:
Originally Posted by Fierysun View Post
The ECU is not the limitation. If you are capped at 24.5psi, you need to run an aftermarket MAP sensor to go beyond that.

However, there are tuning issue with the 4EAT because you can't lock (doesn't down shift to 2nd or upshift to 4th) it in 3rd. So the tune is done in 2nd, which is less than ideal, because it sweeps through the RPM's too quickly for a solid/safe tune. Also, launching from a dig sucks even with a 4K+ stall. You can't just floor it, you need to hold the brakes and bring the RPM's up to stall speed than go, otherwise it's a dog off the line.

Also, a built 4EAT has a torque limitation of around 500btq (not wheel but at crank) and has issues cracking the case supporting the front diff. This transmission is not designed for this level and beyond level of performance.

Btw, my 4EAT is a IPT with Modena front torsen diff, billet accumulators, 4K stall, and running through 05-07 STI axles, 5x114.3 hubs, and R180 . The safest tune that Yimisport could do is 365whp/353wtq in 2nd. Which is leaving around 30+whp/wtq on the table from my EJ207 setup.


How do you like the Modena front diff? Any noticeable difference?
Our cars are turbo, hopefully nobody is launching from a dead stop, def should be bringing rpms up so that youíre launching with boost.
Thank you for the feedback! Didnít realize that there was a torque limit on the built 4eats as well.
I also have a set of the billet accumulators, but havenít swapped them in yet.
What turbo setup are you running to yield the 365whp? Is that on pump gas?
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Old 05-17-2020, 04:25 PM   #11
Fierysun
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2003 EJ207 S204 Wagon

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Quote:
Originally Posted by acheung View Post
How do you like the Modena front diff? Any noticeable difference?
Our cars are turbo, hopefully nobody is launching from a dead stop, def should be bringing rpms up so that you’re launching with boost.
Thank you for the feedback! Didn’t realize that there was a torque limit on the built 4eats as well.
I also have a set of the billet accumulators, but haven’t swapped them in yet.
What turbo setup are you running to yield the 365whp? Is that on pump gas?
The Torsen front diff is a good match with the 04 STI clutch LSD in the rear. It's considerably more sure footed than stock WRX and tracks like a 6MT STI.

Not being able to launch from a dig without having to pre-load/boost the motor is lame. That's what the high stall converter should be doing, but it doesn't work that way with the 4EAT like other automatics.

Tomei 7760 on e80 (LOL even e85 is cut down in CA)

Also, I ran the exact same setup on my other EJ207 before, but going through a 6MT which had a restrictive EWG SuperTrapp and it made 401whp. With the 4EAT, I tripled the Supertrapp plates, so the EWG was no longer a restriction. So there was a lot left on the table that was caused by not being able to lock in 3rd. I think if there was some way to lock the gear, we would see better numbers (if the tranny holds up).

Last edited by Fierysun; 05-17-2020 at 04:43 PM.
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Old 05-18-2020, 07:38 PM   #12
acheung
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Quote:
Originally Posted by Fierysun View Post
Not being able to launch from a dig without having to pre-load/boost the motor is lame. That's what the high stall converter should be doing, but it doesn't work that way with the 4EAT like other automatics.).

Hmm, not sure where you were getting this from? Donít know any other way to launch a turbo or supercharged car?
Maybe youíre thinking those NA v8 or a nitrous car?
From what Iíve seen and experienced, all turbo cars should be launched pre-load/boost. Isnít that what the launch mode is essentially doing in all those fancier setups?
Turbo v8 big power drag cars are similar except they have a tranny lock, which essentially prevents the car from moving forward while they build boost (by mashing on the gas). Once they click the release button, off they go... but essentially the same setup as our DIY hold down the brake as you step on the gas

Only setup that I know of with on demand torque are EVís haha
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Old 05-18-2020, 07:42 PM   #13
acheung
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Also, just a thought... that I havenít had the brain power or experience to investigate further, but Iím assuming that another limitation to our 4eats, is gear ratio.
Definitely not set up for running through the gears and performance, but I guess thatís in part what you were suggesting that these 4eats arenít built for this level of performance
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Old 05-18-2020, 08:07 PM   #14
Fierysun
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Quote:
Originally Posted by acheung View Post
Hmm, not sure where you were getting this from? Don’t know any other way to launch a turbo or supercharged car?
Maybe you’re thinking those NA v8 or a nitrous car?
From what I’ve seen and experienced, all turbo cars should be launched pre-load/boost. Isn’t that what the launch mode is essentially doing in all those fancier setups?
Turbo v8 big power drag cars are similar except they have a tranny lock, which essentially prevents the car from moving forward while they build boost (by mashing on the gas). Once they click the release button, off they go... but essentially the same setup as our DIY hold down the brake as you step on the gas

Only setup that I know of with on demand torque are EV’s haha
Think of the stall on a converter like slipping the clutch to a certain RPM and then engaging. Preloading by holding onto the brake and giving it fuel should not be necessary (we are not talking about pure drag cars looking for every tenth). It should slip/stall to the set RPM and then go. It's a function of the converter and is independent of whether the motor is turboed, supercharged, or NA.
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Old 05-19-2020, 03:08 PM   #15
acheung
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Any other big 4eat builds out there? Any 4eats running around 500 whp or greater?
Open source tuning? Full 2.5l block with AVCS?
Anybody do any upgrades/modifications to their gear ratios with their 4eat?
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Old 05-19-2020, 04:19 PM   #16
Fierysun
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2003 EJ207 S204 Wagon

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Quote:
Originally Posted by acheung View Post
Any other big 4eat builds out there? Any 4eats running around 500 whp or greater?
Open source tuning? Full 2.5l block with AVCS?
Anybody do any upgrades/modifications to their gear ratios with their 4eat?
My car is open source with the Carberry ROM.
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Old 06-20-2020, 08:48 PM   #17
Rocketjones
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My formatting sucks...
2009 Forester XT 4eat
Outfront grocery getter short block +1mm rods
XT heads
Stx67+blanket
Grimmspeed top mount/CAI/cross pipe/up pipe
Ported/honed stock elbows
Wrapped cross pipe/up pipe/down pipe
Stock heat shields packed with Roxyl
Invidia turbo back
Cobb ebcs
Turbosmart recirculation valve
Fluidampr
GDT coolant mod
Koyorad
Derale trans cooler
IPT 4eat rebuild with upgraded torque stall converter
2" ADF lift
King springs
KYBs
SPC adjustable rear control arms
Moog adjustable rear toe
Stainless brake lines
MBC brace
Rear subframe inserts
11STI control arms with ALK/Superpro
25f/25r RCE sway bars
Group N engine mounts
Transmission mount insert
Drive shaft carrier bushings
Battery relocated where the rear seat was(building a sleeping platform)
60ah lifepo4
Diode mod for more volts
Pioneer bt receiver
Helix DSP
Morel Virtus 602 6.5s in the doors
Morel ccwr254 on the dash in pods
Morel ultimo 12 glassed in the spare tub
ARC 1200.6
Zapco 402d
weBoost drive 4g
Ceramic tint
Protuned on 91 for 359/400
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Old 06-21-2020, 02:33 AM   #18
paladinshiva
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Definitely not most built, but I was logging the other day, comfortably goes under 4 seconds.
I'll post description when I get a sec.
Never heard of torque limits.
Also stock TC is 3300, which is enough for anything around 16G and smaller.
Y'all are running some large stuff though...
Also don't need to lock anything if you road/track tune.
I am running FlexFuel SD, worked about 2 years on it with JD(guy who drives the research on SD now, mostly).
I don't have billet accumulators, but built VB by me and a guy who does race 4L GM stuff. Using RatioTek HD.
Big cooler, new filter, Valvoline SYN ATF.
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Old 06-21-2020, 02:24 PM   #19
Fierysun
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2003 EJ207 S204 Wagon

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Quote:
Originally Posted by paladinshiva View Post
Definitely not most built, but I was logging the other day, comfortably goes under 4 seconds.
I'll post description when I get a sec.
Never heard of torque limits.
Also stock TC is 3300, which is enough for anything around 16G and smaller.
Y'all are running some large stuff though...
Also don't need to lock anything if you road/track tune.
I am running FlexFuel SD, worked about 2 years on it with JD(guy who drives the research on SD now, mostly).
I don't have billet accumulators, but built VB by me and a guy who does race 4L GM stuff. Using RatioTek HD.
Big cooler, new filter, Valvoline SYN ATF.
Limitation of the case supporting the front diff.
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Old 06-25-2020, 02:32 AM   #20
silvercookie
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https://forums.nasioc.com/forums/sho....php?t=2762641

just 100k on the motor a couple weeks ago. started getting some blow by issues, probably pull it apart to see whats up when i do the timing belt.

UPDATE - 12/16/15 - Dyno day !
Facility: Performance Auto Solutions. Deer Park, NY.
Tuner: Dave Brown
Tuned with : Cobb Accessport.
Type of Dyno: Mustang Dyno
Year: 2005
Model: WRX
Transmission : 4EAT
Baseline # for a stocker at the dyno:-
Boost: 17.5 psi/21 psi/23psi
Fuel:BP 93oct.
Peak HP at RPM: 305/320/330
Peak Torque at RPM: 340/360/380

Motor
Shortblock - IAG Stage 1 +
Manley 99.75mm Pistons.
ACL Race Main/Rod bearings.
Heat treated crank.
Early style OEM STI rods.
Heads are completely stock 2.0
Arp headstuds
Kinugawa Td05 20g 7cm.
Tial 38mm wastegate.
Grimmspeed up-pipe.
stock headers.
Perrin Inlet
Kstech 83mm maf housing
08+sti intercooler
walboro 255
DW750cc injectors.
IAG CNC TGV Delete's.
Killer Bee oil pan/pick-up/baffle
grimmspeed boost solenoid
Invidia catless 3"dp
Cobb rep catback
Accessport v3

Transmission
Stock torque converter.
Valvebody was modified by Level 10
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