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Old 01-05-2016, 06:34 AM   #1
handydagger
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Default NEWBIE building Track STI 2015

Hi Nasoc Members and moderators, First of all I want to thank all those guys behind Nasoc website they did great job to maintain and keep the forum alive and active

Now for the subject I spent time reading guides and newbie staff for what I'm looking for,

I own STI 2015 "EDM" I use the car for track circuit racing "time attack" mostly on monthly basis which consist of 3 sessions each for the time being it's fully stock other than the break pads

Decided to improve the lap time so decided to build the motor

currently placed order for most Bolton/s

-ETS FMIC
-Tomei Down pipe
-GrimmSpeed and Turbosmart 44/45mm Uppipe Wastegate Kit
-Tomei ELH
-AEM Cold Air Intake Red
-Mishimoto Performance Aluminum Radiator X-Line Manual Transmission
-GrimmSpeed Boost Solenoid
-AEM Water / Methanol Injection Kit V2
-DeatschWerks Bosch EV14 Fuel Injectors Top Feed 1000cc
-DeatschWerks DW65c Series Fuel Pump w/ Install Kit

For the tune going to use ECUtek I got a tuner "Since COBB support only USDM ECUs"

For suspension this will be another project

now going to the engine side I got confused :

I found different options

1-The garage workshop mechanic I know told me get forged internals "he will quota me" will be enough to maintain 450-500 whp on stock block with larget turbo as he explained "price range 2500-3200 usd $ without turbo"

2-Get short block "two another options"
a) Closed Deck built block "online prices 4000+ $"
b) Open Deck built block "online prices 4000+ $"

3-Get forged internals order them myself to save some cost

now keeping in mind the car is for track circuit not drag car

so not sure which path to go with a reliable engine build with targeted 450-500 whp that could stand heat and hard push circuit sessions of 15-20 min

Any feedback will be appreciated to make decision "and sorry for my English"

.... to be updated with installation mods later on
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Old 01-05-2016, 06:59 AM   #2
Jack
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Default

For track related stuff, my first question is always "What class do you plan to run in?". What does the rule book allow. Back when I ran showroom stock, when buying a new car, I would literally bring the rulebook with me to the dealer. I could compare others with that car to see what kind of times they run compared to the class winner.

I am always hesitant to recommend anything that brings you out of stock class because you jump classes quickly and the required mods to be competitive gets really expensive. With your proposed engine work, are you going to go up against C7s and 911 turbos and end up unhappy because you're 17 seconds a lap slower than everyone else?

The best way to reduce your times is always seat time. If you've got a lot of experience already, become an instructor. Getting time in the passenger seat, helping noobs to learn how to drive the course really helps. When I did that, I found that I started to win a lot. I did nothing to my car. I modded myself.
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Old 01-05-2016, 08:07 AM   #3
handydagger
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Thanks Jack for your reply

sorry not to specify track related staff, for the time being it's just causal racing "time attack laps" next to the C7, 911 and you name it

my target is to be close to those class of cars as I'm lapping at 2:45 as Stock STI while 911s 2:10-2:20 even if I know it's hard to reach those figures I want to be in this level

while I'm still building my skills every time I finish a lap , beside this I'm participate in local Autocross events held locally in my country
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Old 01-05-2016, 08:22 AM   #4
vision.dynamix
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Just scanning through, but you don't want those injectors. Go with COBB1000s or InjectorDynamics1000s (COBB injectors at ID injectors with a smidgen more QC)
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Old 01-05-2016, 10:17 AM   #5
vwown3d
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Quote:
Originally Posted by vision.dynamix View Post
Just scanning through, but you don't want those injectors. Go with COBB1000s or InjectorDynamics1000s (COBB injectors at ID injectors with a smidgen more QC)
All 3 are similar, they are all manufactured by Bosch. It comes down to the company who modified, tests, and QC's them. I've only heard good things about ID so far....top of my list.
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Old 01-05-2016, 10:48 AM   #6
Gallo2011
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Ron (Unabomber) will pop in here soon hopefully. He's got some good links to Subaru related forums and such in Europe, I believe, that should help you find other people closer to you with experience building and racing Subarus.
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Old 01-05-2016, 12:54 PM   #7
Unabomber
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on car parts so PM
me b4 j00 buy

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What country do you live in?
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Old 01-05-2016, 01:28 PM   #8
jamal
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I would worry less about adding a lot of power and more about chassis setup and aero. It's a lot easier to dial in alignment, spring rates, and damper settings when the car isn't making a zillion horsepower (although with more power those things will all need to change slightly, but you will have a good baseline).
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Old 01-05-2016, 11:55 PM   #9
handydagger
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Quote:
Originally Posted by vision.dynamix View Post
Just scanning through, but you don't want those injectors. Go with COBB1000s or InjectorDynamics1000s (COBB injectors at ID injectors with a smidgen more QC)
just updated my backorder with ID thanks for the info

Quote:
Originally Posted by vwown3d View Post
All 3 are similar, they are all manufactured by Bosch. It comes down to the company who modified, tests, and QC's them. I've only heard good things about ID so far....top of my list.
The garage mechanic told to get ID as well

Quote:
Originally Posted by Gallo2011 View Post
Ron (Unabomber) will pop in here soon hopefully. He's got some good links to Subaru related forums and such in Europe, I believe, that should help you find other people closer to you with experience building and racing Subarus.
I will never get something from Euro as my currency is dependent on US dollar and cost wise sourcing parts from US is cheaper than Euro and JAP

Quote:
Originally Posted by Unabomber View Post
What country do you live in?
Bahrain "we have Bahrain International Circuit F1 April l Round"

Quote:
Originally Posted by jamal View Post
I would worry less about adding a lot of power and more about chassis setup and aero. It's a lot easier to dial in alignment, spring rates, and damper settings when the car isn't making a zillion horsepower (although with more power those things will all need to change slightly, but you will have a good baseline).
you have a point , currently after doing 1st stage setup Bolton/s and engine will work on Chassis side before moving to bigger turbo

my back order will arrive in 2 weeks after installations will post Dyno etc by end of this month

Will try to post circuit lap video after track tomorrow night with current setup "Stock"
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Old 01-06-2016, 07:54 AM   #10
vision.dynamix
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2017 Forester 2.5i

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Quote:
Originally Posted by vwown3d View Post
All 3 are similar, they are all manufactured by Bosch. It comes down to the company who modified, tests, and QC's them. I've only heard good things about ID so far....top of my list.
The DW have caused some very expensive failures for some people, something we've yet to see from ID/COBB
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Old 04-15-2016, 03:15 AM   #11
handydagger
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***Pump***

apologize for no feedback
Unfortunately car totaled before the mentioned race day above RIP STI 2015 if it wasn't Subaru I would RIP as well "Thanks for Safety in Subaru"

Just bought another one few days back

1st thing Did dyno



+++++++++++++++

Last edited by handydagger; 04-15-2016 at 03:27 AM.
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Old 04-15-2016, 03:35 PM   #12
SwollRX
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2006 WRX TR
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Quote:
Decided to improve the lap time so decided to build the motor
Typically largest improvements will be made by these two below, in order:

1) Driver
2) Tires

Your welcome!
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Old 10-09-2016, 05:59 AM   #13
handydagger
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pump , long time no update
car totaled before build , currently in process of building another one more details coming in few days
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Old 10-10-2016, 11:44 AM   #14
Gallo2011
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2011 SSM STI saloon
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Quote:
Originally Posted by handydagger View Post
pump , long time no update
car totaled before build , currently in process of building another one more details coming in few days
Bump, not pump.
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