Welcome to the North American Subaru Impreza Owners Club Monday July 6, 2020
Home Forums Images WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Go Back   NASIOC > NASIOC General > Member's Car Gallery

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.







* As an Amazon Associate I earn from qualifying purchases. 
* Registered users of the site do not see these ads. 
Reply
 
Thread Tools Display Modes
Old 01-23-2020, 03:29 AM   #1
a0d
Scooby Newbie
 
Member#: 498606
Join Date: Mar 2019
Chapter/Region: MWSOC
Vehicle:
2013 Impreza WRX STi
Silver

Default Antikythera Motorsports 2013 WRX STi Sedan Build Thread

https://www.instagram.com/ai_tuned/
New thread to track this build.
This is my current track car.
The car came to me with an invidia N1 titanium tip exhaust.
I upgraded the shifter bushings (front + rear) with stiffer kartboy bushings, stainless steel brake lines, and motul DOT 5.1.
I blew the stock motor, ~65psi on #4 and #3.
No metal shards in oil pan, cooler, or chips in stock turbine.
After tearing this thing apart, I figured I'd build it out to much higher capability.
I'm hoping this build will get me to ~450-500whp with a considerable amount of headroom for higher power levels after I pick up a short block that will take the beating.
Between the E85, fat turbo, and S3 cams, I'm hoping to make full boost by around 4krpms.
Once I get bored of this new setup, I'll have an old block sent to IAG for stage 4 mods and pick up a few more go fast goodies to really make this bird sing.
I'm not planning on completing the mods under the "future" section for some time.


So far:

Block:
Boxer Motorsports Stage 1 Short Block
* Manley Performance Platinum Series pistons (100mm 8.5:1 CR)
* OEM rods
* OEM crank
* King Racing bearings
* 11mm Oil Pump
* Blue Printed
* ARP2000 head studs
* Moroso oil pickup
* Moroso deep sump aluminum oil pan

Comp Clutch Twin Disk Ceramic Kit (MCS + Flywheel)
Gates Racing Timing Belt Kit w/ water pump
Subaru OEM Thermostat
Subaru OEM Thermostat Gasket
OEM Full Gasket and seal kit

Heads:
GSC Stage 3 Billet Cams
Subaru OEM Cam Seal x4
Manley Performance Pro Series Valve Spring And Retainers

FI:
Borg Warner 83/74 turbo .83 a/r T3
Full Race Rotated DP
Full Race Turbo hardware kit
Full Race Rotated UP
UP inconel hardware kit

Intercooler:
ETS 3.5" FMIC
ETS Rotated Wrinkle Blk FMIC pipe kit
TiAL Q Blow Off Valve Block Off Plate

Fuel/Tuning:
Cobb Fuel Pressure Sensor Kit
Cobb Ethanol Sensor Kit
FIC 2150cc top feed injectors
IAG TGV Delete Housings
Cobb AccessPort


Ordered:

TiAL Q Blow Off Valve O-Ring
TiAL Q Blow Off Valve Clamp Assembly

Cobb AP Defroster Vent Mount
JCS Triple A-Pillar Pod (3x60mm)
DEFI Oil Temp Gauge (60mm)
DEFI EGT Gauge (60mm)
DEFI Oil Pressure Gauge (60mm)
SMY Cluster Dual Gauge pod (2x52mm)
AEM X-Series Boost Gauge (52mm)
AEM UEGO (52mm)
IAG IAT Speed Density Kit
Cobb 4BAR MAP Sensor


Subaru Genuine OEM Oil Filter (x6)
IAG V2 Timing Belt Guide
IAG Street Series AOS
GetaDomTune Cylinder 4 Chamber Cooling System

Dual solid-state fuel pump relay + wiring

Manley Performance Race Master Stainless Steel Exhaust Valves
Manley Performance Race Flo Stainless Steel Intake Valves

IAG V3 Top Feed Fuel Rails Black
Aeromotive A1000 FPR
Fuel Line Fittings
PTFE braided stainless fuel lines, -10AN

IAG Race Series Solid Engine Mounts
Torque Solution Solid Transmission Mount
Torque Solution solid pitch stop mount


Future:

Killer B Motorsport Holy Header
JE Pro Seal Gaskets SB1003-039
IAG Stage 4 Short Block
Manley I-beam rods
JE FSR with upgraded wrist pins or Cosworth pistons with Cosworth pins
Dry sump (undecided on package)
IAG 14mm ARP Head Stud Set
Fluidampr Crank Pulley


What am I missing?
Should I go with the BC EJ20/EJ25 valve keepers with the Manley valves/springs/retainers I'm planning on using?
* Registered users of the site do not see these ads.

Last edited by a0d; 05-19-2020 at 10:01 PM.
a0d is offline   Reply With Quote
Sponsored Links
* Registered users of the site do not see these ads.
Old 01-23-2020, 12:35 PM   #2
stu
Scooby Specialist
 
Member#: 25768
Join Date: Oct 2002
Chapter/Region: RMIC
Location: CO springs
Vehicle:
2003 GEN2 GTX35 40++
2.3 slobaru

Default

Don't see the need for -10 fuel hose. -8 feed -6 return will be plenty. I would also use the oem head gasket over the JE, they seem to seal better all the way to 800whp. if your trying to push more than 25 psi I would also go with the 625+ head studs if you aren't going 1/2 or 14mm for now.
stu is offline   Reply With Quote
Old 01-23-2020, 01:54 PM   #3
tmnc09
Scooby Newbie
 
Member#: 397956
Join Date: Aug 2014
Chapter/Region: South East
Location: Winston-Salem, NC
Vehicle:
2009 WRX
DGM

Default

Some pics would be nice
tmnc09 is offline   Reply With Quote
Old 02-08-2020, 07:09 PM   #4
a0d
Scooby Newbie
 
Member#: 498606
Join Date: Mar 2019
Chapter/Region: MWSOC
Vehicle:
2013 Impreza WRX STi
Silver

Default

Quote:
Originally Posted by stu View Post
Don't see the need for -10 fuel hose. -8 feed -6 return will be plenty. I would also use the oem head gasket over the JE, they seem to seal better all the way to 800whp. if your trying to push more than 25 psi I would also go with the 625+ head studs if you aren't going 1/2 or 14mm for now.
14mm after I send my old block to IAG down the road, but I shouldn't be above 23psi at 500 with this turbo.
a0d is offline   Reply With Quote
Old 02-08-2020, 07:20 PM   #5
a0d
Scooby Newbie
 
Member#: 498606
Join Date: Mar 2019
Chapter/Region: MWSOC
Vehicle:
2013 Impreza WRX STi
Silver

Default


Last edited by a0d; 05-18-2020 at 04:33 PM.
a0d is offline   Reply With Quote
Old 05-18-2020, 04:26 AM   #6
a0d
Scooby Newbie
 
Member#: 498606
Join Date: Mar 2019
Chapter/Region: MWSOC
Vehicle:
2013 Impreza WRX STi
Silver

Default

Some build updates: as these things tend to do, I am going to end up spending a lot more than originally planned. Had some FC (foreign contaminant) get blown into the stage 1 short block I have assembled and lubed up, so I'm going to tear it down and send it off to my local shop to get sleeved. I'll inspect the pistons and rods (only 3k miles or so) and probably sell them off. Going to go with:

* Darton sleeves
* Cosworth pistons w/ the upgraded wrist pins
* Pauter rods
* ARP 625 rod bolts
* New king race bearings
* Stock STi crank
* Ported and radiused oil galleys in the case halves
* Cosworth 11mm oil pump
* 14mm ARP head studs
* Killer B pickup (Moroso one I have is garbage -- it's one of their earlier styles with the oil tube flange that sits out further than the end of the pickup tube, looks very prone to leaks and build quality is abysmal)
* Moroso aluminum deep sump pan (planning on pulling engine often so the trapdoor isn't a problem)

* Manley race flo +1mm intake valves
* Manley race master +1mm exhaust valves
* Clearanced heads for 280 lift (GSC S3) cams
* Drilled heads for 14mm studs
* Manley beehive springs, titanium retainers, new retainer clips

Need to decide on if I want to o-ring it and what I want to do with the fueling.

Last edited by a0d; 05-19-2020 at 10:04 PM.
a0d is offline   Reply With Quote
Old 05-18-2020, 05:04 PM   #7
a0d
Scooby Newbie
 
Member#: 498606
Join Date: Mar 2019
Chapter/Region: MWSOC
Vehicle:
2013 Impreza WRX STi
Silver

Default

Oh, and I figured I should probably get the mains pinned and the rotating assy balanced while the block is apart as well.
New full build list:

Block:
* ported and radiused oil galleys
* pinned mains
* Darton sleeves
* Cosworth forged pistons (99.75mm 8.2:1 CR)
* Pauter x-beam rods
* ARP 625 rod bolts
* OEM STi crank
* balanced rotating assy
* King Racing bearings
* Cosworth 11mm oil pump
* ARP 14mm head studs
* Killer B pickup
* Moroso deep sump aluminum oil pan
* Gates Racing Timing Belt Kit w/ water pump
* Comp Clutch Twin Disk Ceramic Kit (MCS + Flywheel)
* Full-Race ProStock 2-bolt header
* Moroso 4qt accumulator
* Electronic accumulator solenoid wired to the *RUN* circut

Heads:
* GSC Stage 3 Billet Cams
* Manley Performance Pro Series valve springs and titanium retainers
* Manley Race flo +1mm intake valves
* Manley Race master +1mm exhaust valves
* GSC viton valve stem seals

FI:
* Borg Warner 83/74 turbo .83 a/r T3
* Full Race Rotated DP
* Full Race Turbo hardware kit
* Full Race Rotated UP
* UP inconel hardware kit
* Stock BW wastegate
* Stock BW BOV/CRV

Intercooler:
* ETS 3.5" FMIC
* ETS Rotated Wrinkle Blk FMIC pipe kit
* TiAL Q Blow Off Valve Block Off Plate

Fuel/Tuning:
* Cobb Fuel Pressure Sensor Kit
* Cobb Ethanol Sensor Kit
* FIC 2150cc top feed injectors
* IAG TGV Delete Housings
* Cobb AccessPort

I'm logging everything I can with the cobb AP (until I can get a Motec M5), but especially the torque output.
I plan to store that value, and pull/inspect/rebuild the engine based on the total accumulation of torque output and total starts.
I feel that this is the most accurate way of measuring engine wear across street driving, autox use, and track use.

Last edited by a0d; 05-19-2020 at 10:10 PM.
a0d is offline   Reply With Quote
Old 05-18-2020, 11:20 PM   #8
a0d
Scooby Newbie
 
Member#: 498606
Join Date: Mar 2019
Chapter/Region: MWSOC
Vehicle:
2013 Impreza WRX STi
Silver

Default

When I said full boost by 4k rpms, I guess I was pretty damn spot on
http://www.turbos.borgwarner.com/go/2ZBYWU

If you ask me, for a build like this, these are conservative estimates.
The compressor map is what it is -- it won't be flowing any more air, but the VE and turbine efficiency numbers I estimated are definitely on the low side.
With higher VE estimates, the boost numbers should go down.
I wouldn't be surprised if the final build doesn't crack 40psi at 680 crank.

I have a 500CFM donaldson 4" air filter (AKA the BHAF for my diesel friends).
This is a semi truck, high service interval filter with a low micron rating.
My exhaust is pretty free-flowing as well -- oversized valves with high lift cams and mildly ported/polished heads flowing to full-race headers and a full-race up-pipe, then to a 3" catless downpipe and a 3" Invidia N1 catback.

According to the Borg Warner calculator,

at 3,000 RPM, 10psi of boost, 160hp and 280lb-ft of torque
at 3,500 RPM, 15psi of boost, 225hp and 335lb-ft of torque
at 4,000 RPM, 53psi of boost, 565hp and 745lb-ft of torque

38psi is quite a lot to build over 500RPM.

The hell do I need to do to keep 53psi of boost contained with Darton sleeves and 14mm head bolts???

Pretty stoked I'm not going to need to rev this build out past 7k, sticking with that lower redline will help reduce internal fatigue in the long run.

Last edited by a0d; 05-20-2020 at 02:19 PM.
a0d is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

All times are GMT -4. The time now is 05:12 PM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2020 Axivo Inc.
Copyright ©1999 - 2019, North American Subaru Impreza Owners Club, Inc.

As an Amazon Associate I earn from qualifying purchases.