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Old 10-15-2016, 08:15 PM   #1
Moto-East
Former Vendor
 
Member#: 389682
Join Date: May 2014
Chapter/Region: Tri-State
Location: Lehigh Valley, PA
Vehicle:
20 15 WRX/2016 STI
WRB/WRB

Default Moto STI - GTX3071R Stock Location/Flex Fuel/STOCK Motor DD

Event: Dyno (dynojet)
Location: Moto East 2016 STI DD
Ambient Temp: 70
Elevation: 400
Weather: cloudy/rain

Car: 2016 STI
Tuner: Moto East
Transmission: Stock 6 speed
Gear: 3rd
Peak HP at RPM: 363 @6200 (uncorrected, but runs are within 10 degrees ambient)
Peak Torque at RPM: [email protected]
Baseline hp/tq for a stock on same dyno: 274 for STI
Target Boost: 18 psi
Target AFR: 11.2:1
Fuel: E75

Engine/Power Modifications:

STOCK motor w/14k miles (11,000 on this setup)
Moto East Flex Fuel Kit
EcuTek Based Flex Fuel Tuning
AEM CAI
Grimspeed downpipe
Grimspeed top mount IC
ATP GTX3071R drop in turbo
ID1000's
DW300c FP
Perrin 3" inlet
OMNI 3 Bar Map
Custom 3" full exhaust w/single outlet



This is my personal DD after we racked up 50k on the supercharged BRZ (OEM motor the whole time) and in a span of 10 months we got 14k miles on it, driven hard because that's the only right way to do it. I have enough seriously modified cars that the goal here is to make a reliable STI with enough power to get out of its own way but not bog me down with a harsh overly loud ride, sub par drivability, and frequent maintenance. Normally when we tune the stock turbo cars you can get a good gain down low, but the top end is wheezy due to the stock turbo running out of steam. Goal here is to be modest with torque (18 psi), but keep the boost going strong to redline without having to push timing to the ragged edge. You'll always make better, safer power with boost versus riding the knock threshold. Blue line represents a stock STI, red line represents a tuned STI on pump gas, and the green line is on e70 with the GTX3071R stock location ATP kit.

Here we achieved our goal, 363 WHP that pulls strong to redline, with a net gain of about 90 WHP up there. Notice that spool is barely affected compared to the stock VF. This is reading 18 psi on the dyno, while we see about 20 psi on the street due to better airflow. It does closer to 400 WHP VD at that setting. With the current spring tension on the wastegate we couldn't get past 18 psi on the dyno and didn't want to mess with it since it is perfect on the road.

So this is at 14k miles and I expect to drive this thing hopefully another couple of years before we tear it down for a bigger build. But for now it's been a great ride, and a relatively low cost upgrade for a 90 WHP gain over stock. Even with the cost of the car it is around 40k, which is quite reasonable considering the whole package.
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Last edited by Moto-East; 10-15-2016 at 08:23 PM.
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Old 10-15-2016, 08:29 PM   #2
Nixo
Scooby Newbie
 
Member#: 447086
Join Date: May 2016
Chapter/Region: SCIC
Location: Los Angeles
Vehicle:
2006 WRX TR
WRB

Default

Looking good!
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Old 10-20-2016, 03:27 AM   #3
pooster.online
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Member#: 120461
Join Date: Jul 2006
Chapter/Region: BAIC
Location: Bay Area/ L.A
Vehicle:
2004 WRX STi JBP

Default

any pics?? wow that powerband looks awesome!
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Old 10-20-2016, 06:23 PM   #4
blurred
Scooby Newbie
 
Member#: 47143
Join Date: Nov 2003
Location: Toronto
Default

Nice power! it really shows the difference in housings for sure though. I was able to make the same, at the same 18psi boost on 94oct with a 2867r for example, but all v-banded and 3" inlet.
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Old 10-20-2016, 07:00 PM   #5
bmxhotsauce
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Member#: 127099
Join Date: Sep 2006
Chapter/Region: BAIC
Vehicle:
02 IMPERZA WRX
BLACK

Default

nice power with a built motor you can get easily mid 400s on E85. nice set up
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Old 10-20-2016, 09:27 PM   #6
Moto-East
Former Vendor
 
Member#: 389682
Join Date: May 2014
Chapter/Region: Tri-State
Location: Lehigh Valley, PA
Vehicle:
20 15 WRX/2016 STI
WRB/WRB

Default

Quote:
Originally Posted by pooster.online View Post
any pics?? wow that powerband looks awesome!
Thanks! That's more or less the point. These runs are in 3rd, at road speeds in 4-6th it comes online even quicker.

Quote:
Originally Posted by blurred View Post
Nice power! it really shows the difference in housings for sure though. I was able to make the same, at the same 18psi boost on 94oct with a 2867r for example, but all v-banded and 3" inlet.
With things like this unless it was on the same dyno it won't directly compare. It is quite hard to get over 350 to the wheels at 18 psi on this dyno no matter the setup. If we had better airflow to the intercooler and maybe a cooler day, it should hold to the 20 psi we see on the street and get subsantially more. A 2867r is a decent size turbo for a stock motor, but the gtx3071 is just warming up at 20 psi

Quote:
Originally Posted by bmxhotsauce View Post
nice power with a built motor you can get easily mid 400s on E85. nice set up
I'm sure we can do it on the stock motor too, it just wouldn't be very prudent to do that.

Until it gets retired from daily duties it'll stay as is, then we'll tear it down, close the deck, and go for broke!

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