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Old 06-19-2017, 02:22 PM   #1
TheColorCute
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Member#: 265589
Join Date: Nov 2010
Chapter/Region: NESIC
Location: VT
Vehicle:
2004 Slow 6466 STi
WRB

Default 2004 STi | PTE 6466 | 93 octane | 28psi | 538whp/486wtq

Event: Dyno pull
Location: VEMS in Colchester, VT
Ambient Temp: ~80 F
Elevation: 95ft
Weather: Warm and muggy

Car: 2004 STi
Tuner: Nick @ VEMS
Dyno Info: DynoMite with Mustang dyno brakes (Eddy brakes)
Transmission: 6spd
Gear: 4th
Peak HP at RPM: 538whp @ 6,850
Peak Torque at RPM: 486tq @ 5,200
Baseline hp/tq for a stock on same dyno: Unknown
Target Boost: 28psi
Target AFR: 11.3
Fuel: 93 octane pump

Engine/Power Modifications:

Block:
IAG closed deck
Pinned mains
O-rings
IAG 14mm headstuds
Manley Turbo Tuff rods with ARP 625+ rod bolts
IAG Spec 99.75mm pistons with .210 wrist pins
ACL Race bearings
Manley billet crank
ARP Main bolts

Heads:
GSC 272 cams
GSC beehive springs and titanium retainers
Manley 32mm Extreme Duty exahust valves
Manley 36mm Extreme Duty Raceflo intake valves

Turbo/fueling/exhaust/drivetrain:
Precision 6466 with T4 Divided 1.15a/r
Twin TIAL 38mm external wastegates
Custom twin-scroll up pipe
Custom downpipe
Custom AOS
Custom FMIC
Invidial N1 Race midpipe and muffler
JDM EL headers
Bosch 2000cc injectors
DeatschWerks 300lph surge pump
Custom fuel rails
Twin Bosch 044 fuel pumps
Rotated intake manifold
KoyoRad radiator
Cobb Speed Density via Cobb AccessPort V3
Hallman Pro MBC
Fuelab FPR
KillerB oil pickup
KillerB oil baffle
TGV deletes
Aluminati motor/transmission/pitchstop mounts
Additional driveline and suspension modifications

Loaded the car up onto the dyno at VEMS a couple weeks ago. It put down 538whp/486tq @ 28psi on 93 pump gas, no methanol. This was done on a Dynomite dyno with Mustang dyno breaks (Eddy brakes.) We've just about hit the efficiency limit on what 93 octane can handle for boost, so we're going to have to pop in some methanol or race gas and see what it can do! The car revs to 8,200 RPMs on 93 octane, but we cut this dyno chart off earlier.

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Last edited by TheColorCute; 06-19-2017 at 05:44 PM.
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Old 06-19-2017, 02:44 PM   #2
Dave D.
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Join Date: Nov 2006
Chapter/Region: NWIC
Location: Menzel Lake, WA
Vehicle:
06 Red Ltd.Wagon
20gxtr JJ tuned

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That's pretty incredible running that much boost and at that temp. What kind of IAT's are you running? I'd just love to cool my intake temps down more -- tougher with a TMIC, I know, but still, it must be more than just a FMIC doing the job. Any extra secrets you'd care to share? Nice numbers!
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Old 06-19-2017, 02:55 PM   #3
TheColorCute
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Join Date: Nov 2010
Chapter/Region: NESIC
Location: VT
Vehicle:
2004 Slow 6466 STi
WRB

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Quote:
Originally Posted by Dave D. View Post
That's pretty incredible running that much boost and at that temp. What kind of IAT's are you running? I'd just love to cool my intake temps down more -- tougher with a TMIC, I know, but still, it must be more than just a FMIC doing the job. Any extra secrets you'd care to share? Nice numbers!
Thank you! IATs were in the 140s on back-to-back runs at redline. As far as secrets, airflow is obviously very important throughout the car. The shop should have a good dyno fan to provide enough airflow to the car under WOT. If a fan is only spinning at 30mph, and the car is running WOT at 100mph+ on the dyno, the IATs are going to spike because the car isn't seeing that 100mph worth of nice cool airflow that it would normally get on the actual road


Last edited by TheColorCute; 06-28-2017 at 12:34 PM.
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Old 06-19-2017, 04:50 PM   #4
user1029
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Join Date: Mar 2004
Vehicle:
2008 STi IAG built
HTA86 E85 Kel272s Cos IM

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Nice numbers, the turbo and motor are not even breaking a sweat

Time to crank it up to 40psi on E85
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Old 06-19-2017, 05:00 PM   #5
TheColorCute
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Join Date: Nov 2010
Chapter/Region: NESIC
Location: VT
Vehicle:
2004 Slow 6466 STi
WRB

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Quote:
Originally Posted by user1029 View Post
Nice numbers, the turbo and motor are not even breaking a sweat

Time to crank it up to 40psi on E85
Thank you! The motor and turbo definitely have tons more power in store!

I wish that we had E85 here. No E85 stations anywhere in VT . My best bet is C16. I'm planning to do a C16 run sometime soon, just for the fun of it haha. Then I'll run a 50/50 water/methanol mix as an everyday thing

Last edited by TheColorCute; 06-19-2017 at 05:33 PM.
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Old 06-25-2017, 04:30 AM   #6
CEEBEE
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Location: Australia
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07 WRX STI
Urban Grey

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Sweet setup!Would be an animal on E85!
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Old 06-25-2017, 07:25 AM   #7
Lance123
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Vehicle:
2004 JDM WRX Wagon
Silver

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Quote:
Originally Posted by TheColorCute View Post
Thank you! IATs were at about 1600, but my IAT sensor isn't in the most ideal place, so we kept things on the safer side and decided not to push the IATs up even further. As far as secrets, airflow is obviously very important throughout the car. The shop should have a good dyno fan to provide enough airflow to the car under WOT. If a fan is only spinning at 30mph, and the car is running WOT at 100mph+ on the dyno, the IATs are going to spike because the car isn't seeing that 100mph worth of nice cool airflow that it would normally get on the actual road

IAT at 1600deg?

Are you referring to IAT or EGT?
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Old 06-25-2017, 03:01 PM   #8
user1029
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Member#: 57064
Join Date: Mar 2004
Vehicle:
2008 STi IAG built
HTA86 E85 Kel272s Cos IM

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Quote:
Originally Posted by Lance123 View Post
IAT at 1600deg?
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Old 06-28-2017, 12:33 PM   #9
TheColorCute
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Join Date: Nov 2010
Chapter/Region: NESIC
Location: VT
Vehicle:
2004 Slow 6466 STi
WRB

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Quote:
Originally Posted by Lance123 View Post
IAT at 1600deg?

Are you referring to IAT or EGT?
Whoops, my bad. Good catch! It's been a long few days hahaha. EGTs were at ~1600, IATs were in the 140s on back-to-back runs at redline
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Old 06-29-2017, 11:32 AM   #10
insaneimpreza
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Member#: 83291
Join Date: Mar 2005
Location: NE PA
Vehicle:
1998 RSTi
IAG Stg4 Extreme S366SXE

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Its odd that with cams and that size turbo the power is rolling off so hard above 7k. I would guess the high IAT and pump gas are causing that but it seems like all the rev range is really pointless ATM.

Just for reference, and obviously different dyno/weather/elevation etc.. But this is a rod/piston only motor, stock cams, e85, 5857 turbo at 30psi that I tuned for a friend. I would look into getting some E98 shipped to you and mix your own E85 OR buy some race gas just to run it and see what you're leaving on the table!



This is a much smaller turbo with 2 psi more on better fuel, the drop in whp to 7500 RPM on pulls was far less drastic. (This is actually to 7k, not sure why the dyno tach wasn't cooperating but is what it is).
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Old 06-29-2017, 11:38 AM   #11
insaneimpreza
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IAG Stg4 Extreme S366SXE

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Just to be clear, Im not knocking your car or saying the car we built was better. Im just offering a comparison of a much milder build with smaller turbo making very similar power on better fuel. I have a very similar engine build to yours on my own car with the BW 366 turbo. My point is really that its well built but overbuilt for the end result. I really dont mean that to sound harsh eventho its probably going to come across that way.
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Old 06-29-2017, 02:53 PM   #12
TheColorCute
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Join Date: Nov 2010
Chapter/Region: NESIC
Location: VT
Vehicle:
2004 Slow 6466 STi
WRB

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Quote:
Originally Posted by insaneimpreza View Post
Its odd that with cams and that size turbo the power is rolling off so hard above 7k. I would guess the high IAT and pump gas are causing that but it seems like all the rev range is really pointless ATM.

Just for reference, and obviously different dyno/weather/elevation etc.. But this is a rod/piston only motor, stock cams, e85, 5857 turbo at 30psi that I tuned for a friend. I would look into getting some E98 shipped to you and mix your own E85 OR buy some race gas just to run it and see what you're leaving on the table!



This is a much smaller turbo with 2 psi more on better fuel, the drop in whp to 7500 RPM on pulls was far less drastic. (This is actually to 7k, not sure why the dyno tach wasn't cooperating but is what it is).
Quote:
Originally Posted by insaneimpreza View Post
Just to be clear, Im not knocking your car or saying the car we built was better. Im just offering a comparison of a much milder build with smaller turbo making very similar power on better fuel. I have a very similar engine build to yours on my own car with the BW 366 turbo. My point is really that its well built but overbuilt for the end result. I really dont mean that to sound harsh eventho its probably going to come across that way.
Nah I hear you, it's definitely getting choked due to pump gas. We're going to pop in some methanol or use some race gas and see what it can do. We brought it up to 8200 to see how it handled it, and 93 octane isn't really doing much up there. That being said, I rarely rev it out that high on that streets. I usually shift at 7000.

Nice numbers! I wish we had E85 around here
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Old 06-30-2017, 08:56 PM   #13
SW00P_G
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Join Date: Apr 2001
Chapter/Region: MWSOC
Location: Westerville, Ohio, USA
Vehicle:
2002 WRX
EJ257 Gt35r

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I'm not going to get into a debate here. But why did you post a different dyno graph that shows a car making power from 4300rpm - 6700rpm and talk about this guys rev range being small?


Either way, good luck on the builds everyone. Be careful out there.

Quote:
Originally Posted by insaneimpreza View Post
Its odd that with cams and that size turbo the power is rolling off so hard above 7k. I would guess the high IAT and pump gas are causing that but it seems like all the rev range is really pointless ATM.

Just for reference, and obviously different dyno/weather/elevation etc.. But this is a rod/piston only motor, stock cams, e85, 5857 turbo at 30psi that I tuned for a friend. I would look into getting some E98 shipped to you and mix your own E85 OR buy some race gas just to run it and see what you're leaving on the table!



This is a much smaller turbo with 2 psi more on better fuel, the drop in whp to 7500 RPM on pulls was far less drastic. (This is actually to 7k, not sure why the dyno tach wasn't cooperating but is what it is).
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Old 07-01-2017, 01:53 AM   #14
binny
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Location: Australia
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MY98 WRX
Blue

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Quote:
Originally Posted by SW00P_G View Post
I'm not going to get into a debate here. But why did you post a different dyno graph that shows a car making power from 4300rpm - 6700rpm and talk about this guys rev range being small?





Either way, good luck on the builds everyone. Be careful out there.

Hopefully he was just talking up E85?
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Old 05-18-2018, 12:21 AM   #15
syounger
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2015 sti
dark grey

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I'm interested to see this build with the meth added! Beauty looking build, I hope I can run similar #s when I finally build my motor!!!
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Old 06-10-2018, 04:30 PM   #16
PDXREALTOR
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Join Date: May 2017
Location: PDX OREGON
Vehicle:
2017 STI

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I keep saying it... For those without E 85 torco is very viable option. I add 3oz per gallon and run 10/20 in 4th @ 28 psi 11.5 afr on an fp green htz
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