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Old 09-25-2017, 07:32 PM   #1
PDXREALTOR
Scooby Specialist
 
Member#: 468393
Join Date: May 2017
Location: PDX OREGON
Vehicle:
2017 STI

Default 20G / FMIC Dyno Graphs

Engine Mods
Cobb 20g turbo
Cobb Intake Perrin cold air intake
Perrin Turbo intake
Perrin FMIC
Modified OEM turbo heat shield -- Perrin turbo heat shield
Perrin Turbo Blanket
Perrin lightweight crank pulley
Perrin Front and Rear Shifter Bushings (that was a PITA install - worth it though)
Perrin Weighted Shift Knob
Perrin Dress Up Covers/Caps/ETC
Cobb Access Port
High load PCV delete, VTA. Low load PCV is in OEM working condition.
AEM WBO2 tied into AP for logging
Innovate oil pressure/oil temp MTX gauge
SMY instrument cluster gauge pod
IA Performance FPR/Stumble Fix (same as Cobb's but at a much better price)
Grimspeed catted downpipe - wrapped
Grimspeed EBCS
Grimspeed sandwich plate adapter
Deatschwerks 750cc injectors
Deatschwerks DW65c fuel pump
Tomei ELH w/ up pipe - wrapped
Invidia Q300 catback w/ Titanium Tips


I run a base tune on 94.5 octane. This will be S mode. S# will be a 92 octane tune via a boost reduction in the map, and a global timing reduction of the Cobb Access Port. I mode will be gas saver/snow mode/waste gate.

Here's the dyno graphs - 1st is the last after a long series of pulls. It was heat soaked. 2nd is after a 20 min cool down. I think the later spool and torque on the 2nd graph is due to the SS headers and turbo being cold. It certainly spools faster on the street.

383/390- 385/377 - 25 PSI tapering to 21 at redline
Tuned by Jarrad at PDXTUNING in Portland OR.



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Old 01-19-2019, 12:50 AM   #2
Boxer112
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Member#: 78751
Join Date: Jan 2005
Chapter/Region: Tri-State
Location: El Cajon, CA (from NY)
Vehicle:
2017 Sti
ISM

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Wow, I’m confused on why peak torque is so high in rpm range.
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Old 01-19-2019, 04:10 PM   #3
NSFW
Scooby Guru
 
Member#: 140444
Join Date: Feb 2007
Chapter/Region: NWIC
Location: Near Seattle, WA
Vehicle:
05 Stage Free LGT
ATP 3076, 6MT, AVO FMIC

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My car's dyno sheet showed it spooling about 1000 RPM later than it really does on the street, so in cases like this I just assume it's more about the dyno than about the car.
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Old 01-19-2019, 08:51 PM   #4
Android287
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Member#: 180861
Join Date: May 2008
Chapter/Region: NESIC
Location: Rotated PTE 5858
Vehicle:
2005 IAG Closed Deck
Larry's Power built heads

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Do you have any more info on your pcv delete set up?
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Old 01-20-2019, 09:44 AM   #5
Scuby04STi
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Member#: 328635
Join Date: Aug 2012
Chapter/Region: NWIC
Location: Portland*
Vehicle:
2004 STi GTX3076R
Rally Blue

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Quote:
Originally Posted by NSFW View Post
My car's dyno sheet showed it spooling about 1000 RPM later than it really does on the street, so in cases like this I just assume it's more about the dyno than about the car.
I don't think that is the case on this one, I use the same dyno and tuner. My gtx3076 made 400wtq and 300whp by 4k on pump 92. Depending on what the car is being used for that could have been how they wanted to bring the boost in to save the topend from a nose dive.

OP, so how many project subarus do you have? Lol
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Old 01-21-2019, 04:43 AM   #6
PDXREALTOR
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Member#: 468393
Join Date: May 2017
Location: PDX OREGON
Vehicle:
2017 STI

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I just pulled the few VD runs I had, and , spool/PT wasn't that much better. Maybe 250 rpms or so.

I wasn't nearly as knowledgeable about tuning and turbo cars in general back then so, I wasn't out tuning all night seeing what I could get the setup to do. I didn't keep this turbo long before I had Jarrad pop some forged pistons in the motor and at that time I upgraded a bunch of other items too, including and FP Green.

Same car, it's just been transformed now a few times. This is the latest version https://forums.nasioc.com/forums/sho....php?t=2890091

Edited to add - that dyno has never loaded my car the same as the street. I always boost more the second I'm off that thing and on the street. I was recently on that dyno and had to turn up the boost from my road tuned settings. It was off (low) by several PSI. In the end it's just a tool. I enjoy doing most of the tuning on the road, and hitting the dyno to fine tune the timing.
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Old 01-21-2019, 04:52 AM   #7
PDXREALTOR
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Member#: 468393
Join Date: May 2017
Location: PDX OREGON
Vehicle:
2017 STI

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Quote:
Originally Posted by Android287 View Post
Do you have any more info on your pcv delete set up?
What would you like to know?

I think at this time I was running everything T'd into a single little K/N filter under the car. Big mistake as Ting all those lines into one improperly sized line the exits out of a tiny little filter is a disaster when you take a long sweeping turn at 100+ mph and so much oil comes out the line can't handle it so it blows the lines off your head port. Ask me how I know.

If you're going to do a DIY setup - just upsize the dump line accordingly, and don't restrict it with a tiny cotton filter.
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