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0

Subaru

158 posts
View Post
  • STI (gen 2)
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  • Subaru

IAG’s New Easy Plug and Play Drive By Wire Big Throttle Body for the EJ257.

  • Posted on August 4, 2022August 5, 2022
  • byMike Kojima
We previously had gotten an IAG Performance big throttle body for Project STI, although it was a nice piece it was not exactly user-friendly.  You had to get the drive-by-wire…
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  • STI (gen 2)
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  • Subaru

Project GD STI, Out with the Old and in with the New!

  • Posted on August 2, 2022August 3, 2022
  • byMike Kojima
It is time for us to swap out our damaged EJ257 and install our IAG 700 engine.  We spent a lot of time waiting on parts to finish the job,…
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  • Features
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  • Subaru

Subaru WRX Econo Suspension! Part 2

  • Posted on July 21, 2022
  • byMike Kojima
We had last left our GD WRX with the front suspension mods from ST Suspension and Whiteline. Now it’s time to finish the installation at the rear suspension and get…
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  • Features
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Subaru WRX Econo Suspension! Part 1

  • Posted on July 19, 2022July 19, 2022
  • byMike Kojima
A lot of what you see here at MotoIQ are often really high-end mods that many people can just dream about or are so high performance and track level that…
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  • FR-S
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Project FR-S, Improving the Aero Balance with Verus Engineering and Victory Function

  • Posted on June 7, 2022
  • byMike Kojima
When driving Project FR-S on the track we had noticed that although the car had excellent handling in general, it had understeer in high-speed turns.  We also noticed in pictures…
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  • STI (gen 2)
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  • Subaru

WATCH: Subaru Engine Swap Must Have Parts!

  • Posted on May 20, 2022
  • byJeff Naeyaert
  If you’re building a high performance Subaru engine there’s a lot of parts and accessories to consider buying or upgrading while you’re in there. In this video Mike explains…
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  • Tech
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  • Subaru

Nightmotorsport Air Oil Separating Billet Valve Covers for Subaru EJ Engines

  • Posted on April 26, 2022April 28, 2022
  • byMike Kojima
Subarus like all flat engines, blow a lot of oil out of the crankcase in their blowby gasses.  This is always a problem with performance flat engines like Porsche or…
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  • STI (gen 2)
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  • Subaru

Freeing up the EJ257 Intake Flow with Process West and IAG

  • Posted on April 24, 2022
  • byMike Kojima
We were planning to run a Cosworth intake manifold on Project STI’s IAG motor but we were unable to find one for a decent price as they have been discontinued…
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  • Tech
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  • Subaru

Cutting Big Weight From Project STI With AntiGravity Batteries and MeleDesign Firm

  • Posted on April 17, 2022
  • byMike Kojima
While we are going through Project GD STI, repowering it and upgrading many of its systems, we thought it would be nice to replace the car’s heavy AGM battery with…
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  • FR-S
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Reducing FA20 engine Vibrations and Boosting Power!

  • Posted on April 6, 2022
  • byMike Kojima
When driving our Project FR-S on the track, we noticed that the engine has a pretty noticeable vibration at 6500 rpm.  This was especially noticeable in the higher gears where…
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  • STI (gen 2)
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  • Subaru

Project GD STI, Getting Ready For the Engine Swap

  • Posted on January 30, 2022
  • byMike Kojima
In our previous articles, we covered the build-up of our EJ257 engine collaboration with IAG Performance.  Now we have been collecting a bunch of parts to make our installation go…
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  • WRX (GD)
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Project GD STI, IAG’s new high capacity EJ Oil Pump!

  • Posted on November 28, 2021
  • byMike Kojima
IAG has just dropped their Stage 1 and Stage 2 oil pumps for all EJ engines.  We will be using their Stage 2 pump on our own Project GD STI.…
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  • STI (gen 2)
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WATCH: How to Solve Your Subaru Fueling Problems. The Right Way!

  • Posted on November 19, 2021
  • byJeff Naeyaert
  In this video Mike explains the shortcomings of the stock Subaru fuel system and how to fix it the right way. This fuel system is capable of supporting up…
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  • Tech
  • Subaru

Low Buck WRX Brake Upgrade

  • Posted on October 31, 2021
  • byMike Kojima
If you own a GD WRX (2002-2007), your car is probably getting up there in miles and if you need to go through your brakes, there is a nice low…
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  • STI (gen 2)
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  • Subaru

WATCH: Fix Subaru Oiling Issues for Good!

  • Posted on October 22, 2021
  • byJeff Naeyaert
  In this video Mike talks about yet another shortcoming of the Subaru EJ engine and probably the best way to fix it! If you liked the video, please subscribe…
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  • STI (gen 2)
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  • Subaru

Solving Subaru EJ Oiling Issues for Good with IAG Performance!

  • Posted on October 19, 2021
  • byMike Kojima
Subaru EJ engines are known to have oiling problems caused by the oil pan and pick up.  We personally know quite a few people who have lost engines on the…
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  • STI (gen 2)
  • Projects
  • Subaru

WATCH: The Best Clutch Money Can Buy? XClutch Twin Disc

  • Posted on October 9, 2021
  • byJeff Naeyaert
  We recently noticed a new clutch brand to us that’s been gaining popularity in the time attack crowd. In this video Mike takes a look at the XClutch twin…
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  • STI (gen 2)
  • Projects
  • Subaru

Project GD Subaru STI, High Power Fuel System Upgrades!

  • Posted on October 3, 2021
  • byMike Kojima
When last tuning our STI with Cobb’s flex-fuel system, we had maxed out our Mass Air Flow Meter, fuel pump and had our injectors going at the maximum duty cycle…
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  • WRX (GD)
  • Projects
  • Subaru

The Rest of the Engine for Project WRX

  • Posted on July 25, 2021July 30, 2021
  • byMike Kojima
We have been getting parts to finish off the engine build on Project GD WRX.  If you have been following the project you can check out what we have done…
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  • STI (gen 2)
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Project GD Subaru STI, Checking out the Ultimate Streetable Clutch with XClutch.

  • Posted on July 18, 2021July 29, 2021
  • byMike Kojima
With our killer engine by IAG now sitting in our shop, it was time to start gathering the peripheral components needed to support our new motor.  The next thing absolutely…
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  • STI (gen 2)
  • Projects
  • Subaru

Project GD Subaru STI, Building the Engine Part Five: Final Engine Assembly With IAG.

  • Posted on June 20, 2021
  • byMike Kojima
In our last story, you saw how IAG Performance assembled our short block with meticulous care. Now our engine travels to the second of IAG’s two cleanrooms for final assembly.…
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  • STI (gen 2)
  • Projects
  • Subaru

Project GD Subaru STI, Building the Engine Part Four: Assembling the Short Block With IAG.

  • Posted on June 13, 2021
  • byMike Kojima
If you have been following our EJ257 engine build series with IAG Performance, you have been able to look inside IAG’s incredible attention to detail in machining and parts selection. …
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  • STI (gen 2)
  • Projects
  • Subaru

Project GD Subaru STI: Building the Engine Part Three, Cylinder Head Technology With IAG Performance.

  • Posted on May 23, 2021June 9, 2021
  • byMike Kojima
The cylinder head is one of the most important parts when it comes to making power in an engine.  Although headwork is less critical in a turbo engine than a…
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  • STI (gen 2)
  • Projects
  • Subaru

Project GD Subaru STI: Building the Engine Part Two, Bottom End Bits With IAG Performance.

  • Posted on May 2, 2021June 9, 2021
  • byMike Kojima
In part one of our series of building the motor for Project GD STI we talked about the IAG Performance engine cases we are using and all of the prep…
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  • STI (gen 2)
  • Projects
  • Subaru

Project GD Subaru STI, Building the Engine Part One, Prepping the Case With IAG Performance.

  • Posted on April 13, 2021June 9, 2021
  • byMike Kojima
It had to happen eventually.  Our Project STI was running great.  We had plans to build the engine as our 400 whp was past the limit that a stock bottom…
View Post
  • WRX (GD)
  • Projects
  • Subaru

WATCH: How to Build a Subaru EJ Engine that won’t BLOW UP!

  • Posted on March 6, 2021
  • byJeff Naeyaert
  Time to dust off Project Bugeye WRX and start putting its new engine together. We’ll show you all the parts that will be going into our EJ20 build, along…
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  • Tech
  • Projects
  • WRX (VA)
  • Subaru

SuperPro Suspension Parts joins the Devine Force Racing STi and is put to work at COTA

  • Posted on March 8, 2020March 9, 2020
  • byDevin Hofmann
Subarus are known for their competitive advantage of AWD and the ability to always have traction pulling you through the corners. It’s important to note the use of pulling, and…
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  • Tech
  • Subaru

StopTech/G-Loc Combo for the Devine Force Racing STi

  • Posted on November 3, 2019November 3, 2019
  • byDevin Hofmann
We’ve all been there, that moment coming down a long straightaway, absolutely HAULING FAST as possible, as the unforgiving braking zone approaches. A quick tap to the brake pedal with…
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  • Tech
  • STI (gen 3)
  • Subaru

Installation and testing of the KW 2-Way Clubsports on the Devine Force Racing Time Attack STi

  • Posted on October 9, 2019
  • byDevin Hofmann
At last! It’s the end to unwanted body roll, understeer and driving an off-roading truck through the esses of Michelin Raceway Road Atlanta. We have finally taken the steps to…
View Post
  • STI (gen 2)
  • Projects
  • Subaru

Project Subaru GD STI, Improving The Ignition System!

  • Posted on September 19, 2019September 24, 2019
  • byMike Kojima
Nowadays it is hard to improve the ignition on late model cars.  New car ignitions, especially ones with coil on plug systems are more powerful from the factory than racing…
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  • Tech
  • STI (gen 2)
  • Projects
  • Subaru

The Dreaded Subaru p0011 and p0021 DTC Codes, Don’t Let Them Wreck Your Turbo!

  • Posted on August 29, 2019December 4, 2019
  • byMike Kojima
So DO NOT do what we did when our Project GD STI turned on a p0011 OBD DTC code.  What we figured was some sort of sensor issue ended up…
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  • WRX (GD)
  • Projects
  • Subaru

The Closed Deck Subaru EJ20, Built for Boost!

  • Posted on April 18, 2019April 22, 2019
  • byMike Kojima
In our last story, we were assembling the parts for Ian’s long rod stroker EJ205.  Now that we had rods and a crankshaft from Eagle and Pistons from JE, it…

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