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Old 08-18-2014, 02:33 PM   #1
subiejei
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Join Date: Jul 2014
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2015 Subaru WRX
Crystal White Pearl

Wink Project Emmalyn: 2015 WRX Build & Driver Development Journal

Introduction

Hey NASIOC! I am very excited to welcome you to Project Emmalyn, a 2015 WRX build. Before we get started, I have a confession... I'm a car and track noobie . Now, why would a noobie start a car build thread? Truth is, I really want to share with the NASIOC community what it takes to go from someone who's simply a car enthusiast to a knowledgeable track driver (hence the driver development journal part of this thread). I believe this perspective will benefit members in showing both the car and driver development process. I'm sure there will be plenty of bumps along the way and lessons to be learned. I hope to share my experiences and new found knowledge with everyone. Here we go!

Project Emmalyn: The Goal

With guidance from knowledgeable and reputable aftermarket companies and using only high quality parts, build a competitive track car without compromising vehicle safety and reliability. The 2015 WRX is a great car to start out with, but there is always room for improvement. I want to expand Emmalyn's capabilities evenly, keeping her well balanced while pushing the performance envelope.

I encourage everyone to ask questions and to correct my noobieness if I post inaccurate information. Check back often as I will be updating this thread frequently. Thanks for reading!

The day I brought her home.


She let me know that it was time for the track.


Our first experience at the track.


Since the 2015 WRX is brand new, modifications will be a bit sporadic due to new part engineering and development.

Modification List

Engine:
  1. Jackson Racing Oil Cooler (9-series Setrab 15 Row Oil Cooler, Prototype)
  2. COBB Accessport V3

Suspension:
  1. CounterSpace Garage Lug Nuts (Forged 7075-T6 Aluminum, 17mm - M12x1.25)
  2. Cusco Type OS Front Strut Bar
  3. Cusco Type OS Rear Strut Bar
  4. Cusco Quick Release (for rear strut bar)

Exterior:
  1. Decals (#becauseracecar)

Interior:
  1. None just yet, but some buckets en route.

Consumables:
  1. Engine Oil: Motul 300V (5W30)
  2. Engine Filter: Subaru Oil Filter (Part Number: 15208AA130)
  3. Brake Fluid: Torque RT700 (DOT 3/4/5.1)
  4. Brake Pads: Winmax W3 (Front Pads)
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Last edited by subiejei; 08-19-2014 at 02:25 PM.
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Old 08-18-2014, 02:34 PM   #2
subiejei
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2015 Subaru WRX
Crystal White Pearl

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Modification Pictures:

COBB Accessport V3









Last edited by subiejei; 08-22-2014 at 06:38 PM.
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Old 08-18-2014, 02:35 PM   #3
subiejei
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Crystal White Pearl

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Videos:

Last edited by subiejei; 08-18-2014 at 07:53 PM.
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Old 08-18-2014, 02:35 PM   #4
subiejei
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Driver Development Journal:

Last edited by subiejei; 08-18-2014 at 07:54 PM.
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Old 08-18-2014, 02:36 PM   #5
subiejei
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Track Days:

Track Day #1 (7/26/2014): Willow Springs International Raceway (Streets of Willow, CCW)



Consumables Used:










Track Pictures:



Last edited by subiejei; 08-22-2014 at 07:09 PM.
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Old 08-18-2014, 02:36 PM   #6
subiejei
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Reserved a bit more

Last edited by subiejei; 08-18-2014 at 07:56 PM.
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Old 08-18-2014, 02:37 PM   #7
subiejei
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So you don't have to read through all the pages
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Old 08-18-2014, 02:37 PM   #8
subiejei
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Last one!
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Old 08-19-2014, 01:24 PM   #9
Nortdort
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So many reserved posts! But i'll sub for results!
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Old 08-19-2014, 11:57 PM   #10
cmejatt
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in!!!!
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Old 08-22-2014, 06:28 PM   #11
takchi
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I subscribed to the last thread. I guess I got to subscribe to this one. Need moar pics!
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Old 08-22-2014, 07:16 PM   #12
lennie briscoe
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Reserved
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Old 08-23-2014, 08:33 AM   #13
blk05wrx
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How about a review of the Cobb flash?
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Old 08-28-2014, 09:59 PM   #14
subiejei
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Quote:
Originally Posted by blk05wrx View Post
How about a review of the Cobb flash?
Sorry for the slow response, but life always gets in the way.

COBB Accessport V3 - Stage 1 Off-The-Shelf (OTS) Tune

Stock Tune:

The stock tune is great for general driving, but has a slight power dip/hesitation around 3800 RPM and 4500 RPM shown in the dyno graphs below. Subaru's stock tune provides a linear throttle/pedal position relationship, but puts all the power output within the first half of pedal travel. This allows the power to come on early, which is very convenient and fun and makes the car feel fast and peppy. The stock tune didn't cause the car to overheat during my first track day at Willow Springs Raceway and it was about 100 degrees out there. I'm sure the Jackson Racing Oil Cooler helped quite a bit. Thanks Jackson Racing!

Stage 1 OTS:

The Cobb Stage 1 OTS tune definitely has more overall power (larger power band) than stock and smooths out the curves as seen below. The tune took care of the dips/hesitations seen with the stock tune. Cobb's tune also provides a linear throttle/pedal position relationship across the entire pedal travel range and linear power delivery, which allows for easier engine output control and pedal modulation. The downside of the Cobb Stage 1 OTS tune is the extra heat generated. The tune caused overheating before a single lap was complete at Auto Club Speedway in Fontana, which makes it untrackable.

Recommendations:

For street driving, the stock tune is fun and peppy while the Cobb tune allows for more linear power delivery across the pedal travel range (less touchy). The Cobb tune feels more like my Evo 9, which I prefer and is fine for the streets even though it generates more heat. Is the Cobb Acessport V3 worth picking up for the OTS Stage 1 tune? Probably not unless you really like the characteristics of the tune. However, I will be keeping the Cobb AP for tuning purposes and the metrics it provides.

I will be flashing back to the stock tune for this Saturday's track day at Buttonwillow Raceway. I will save my monies for a custom tune once more engine mods are done. A special thank you to Church Automotive for the dyno pulls and tuning expertise.

Subaru Stock Tune vs Cobb OTS Stage 1 Tune:


Subaru Stock Tune vs Cobb OTS Stage 1 Tune vs Cobb OTS Stage 1 Tune (Heat Soaked)


Cobb OTS Stage 1 Tune (4 pulls in a row; shows power loss due to heat generation)


2015 Subaru WRX (Stock Tune) vs 2014 Subaru BRZ (Stock Tune)

The base model WRX is only about $600 more than the base model BRZ...

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Old 08-31-2014, 01:12 PM   #15
blk05wrx
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Wow, thanks. Great review. Are you seeing boost spikes on the stock tune? I drove my friends 2015 CVT and we were seeing 22psi on the factory boost gauge. That seems pretty high.
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Old 09-18-2014, 10:29 PM   #16
subiejei
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A few new items added to the car recently. Anyone going to Subiefest?

















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Old 09-23-2014, 01:42 PM   #17
takchi
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Man this build is looking good. Hope to see more pics on how the car looks now. How do you like the Cusco coilovers?
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Old 09-23-2014, 01:52 PM   #18
bunz559
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WOW! looks great! Never knew those quick releases existed. LOL!

What Lip is that btw?
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Old 09-23-2014, 04:41 PM   #19
ericlikescars
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Sick build, I'm definitely looking forward to this one.

& bunz559, that is an APR lip.
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Old 09-29-2014, 05:58 PM   #20
chuchutrain
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It seems like the stock rubber doesn't keep up with the stock suspension; the stock suspension can handle more rubber. Did you find this to be the case?

Also, what prompted the front and rear strut bars? The car feels pretty solid from the factory.
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Old 10-03-2014, 04:54 PM   #21
subiejei
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Crystal White Pearl

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Quote:
Originally Posted by takchi View Post
Man this build is looking good. Hope to see more pics on how the car looks now. How do you like the Cusco coilovers?
The Cusco coilovers feel fantastic after some expert tuning from Mike and David at CounterSpace Garage. Thanks guys. I really appreciate the expert advice and hard work. It truly is amazing what a properly tuned suspension feels like.

Here's an action photo from Subiefest courtesy of the article below:



http://www.drivingline.com/2014/09/s...ubiefest-2014/

Quote:
Originally Posted by bunz559 View Post
WOW! looks great! Never knew those quick releases existed. LOL!

What Lip is that btw?
Thanks! The quick release is very useful for the rear strut bar in case you need to remove it on a whim for a trip, to transfer larger items, etc. And as ericlikescars stated, it's an APR lip.

Quote:
Originally Posted by ericlikescars View Post
Sick build, I'm definitely looking forward to this one.

& bunz559, that is an APR lip.
Thanks! I'll upload some new photos soon. New items have been added! Wheels/Tires/BBK!

Quote:
Originally Posted by chuchutrain View Post
It seems like the stock rubber doesn't keep up with the stock suspension; the stock suspension can handle more rubber. Did you find this to be the case?

Also, what prompted the front and rear strut bars? The car feels pretty solid from the factory.
I believe the car would benefit from more track oriented tires even with the stock suspension, though the stock tires weren't bad to learn on. Progressive and predictable going towards the limit (well, my noobie limit).

Although the car feels very solid from the factory, the front and rear strut bars gave me more confidence while tracking and adds 5 hp each!
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Old 10-17-2014, 02:26 PM   #22
subiejei
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Crystal White Pearl

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Tomei Titanium Exhaust! It was glowing after a track session. Thanks Tomei!





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Old 10-27-2014, 01:10 PM   #23
subiejei
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Crystal White Pearl

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These TWS T66-F rims are so light! Loving the new look. Thanks CounterSpace Garage!



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Old 10-30-2014, 01:11 PM   #24
subiejei
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How does the AP Racing BBK look behind the TWS T66-F wheels?

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Old 02-18-2015, 02:26 PM   #25
subiejei
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It has been a while, but back at it.

Oil Change! Thanks CounterSpace Garage for the Motul 300V!



Car wash is next on the to do list...
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