SPL Parts Suspension Upgrade on the Devine Force Racing VA STi
We all know the saying, “you have to crawl before you walk”…. we’ve been crawling for a bit and it’s time for the Devine Force Racing STI to continue growing…
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Subaru
63 posts
Project GD STI, Adding an Intercooler Sprayer to a Front Mount Intercooler
Subaru STIs have a water intercooler sprayer as factory equipment. There is an intercooler spray button on the dash with a large water reservoir in the truck with a pump. …
Project GD STI, Our Custom Stoptech Big Rear Brake Kit Comes Together!
In our last segment, we talked about the lack of rear brake upgrades for the GD and why it was difficult to design one. We started out with a Stoptech…
Project GD STI, Designing a Stoptech Rear big brake kit with BD Engineering
We had always wanted to upgrade the rear brakes on Project GD STI but were not able to do it. Nobody made a quality rear brake upgrade for the car.…
Improving Shift Feel with Cobb Tunings Weighted Shift Knob
Our Project GD STI has been running a Cobb Tuning short shifter and we really like it. We have it adjusted so the throws are not Syncro crunching short and…
Project GD STI, Improving the Powerband with Precision Turbo and Injector Dynamics
Previously we had dyno tested and tuned Project STI at Church Automotive testing. Although our car made a pretty impressive 501 whp and 487 lb/ft of torque our power peaked…
Fixing the GD WRX Fuel System with Radium Engineering and DeatschWerks
On our Project GD STI we upgraded the fuel system using a Radium Engineering fuel hanger and a single large Walbro TIA450 fuel pump. However, we found that Subaru wiring…
Onsite Wheels Fixes Project GD STI’s Wheels
So seconds after lecturing my daughter about curbing wheels I did this… It looks like another job for Onsite Wheels. Onsite Wheels had previously fixed the wheels on our Project…
ASF Machines Subaru Engine Assembly Tools
If you work on Subaru engines, ASF Machine is producing some cool tools to make your day easier and to help you do a better job! The first tool is…
Project GD STI, Dyno Tuning for Big Power with Reliability
Well, it’s finally time to get Project STI started and tuned. As with many of our projects, we enlisted the help of Shawn Church of Church Automotive Testing to get…
Rodger Clark Motorsports Subaru EJ Low Temperature Opening Thermostat
We had noticed that the coolant temperature of Project STI was pretty hot considering that the car had a big CSF radiator and a Greddy oil cooler, in fact, the…
Project GD STI, Fixing all the Details!
There are a lot of small details involved with swapping an engine, especially when upgrading all of the system parts for higher performance. These make the difference in the reliability…
IAG’s New Easy Plug and Play Drive By Wire Big Throttle Body for the EJ257.
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…
Project GD STI, Out with the Old and in with the New!
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,…
Subaru WRX Econo Suspension! Part 2
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…
Subaru WRX Econo Suspension! Part 1
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…
Project FR-S, Fixing the original tune with Church Automotive Testing
We had been running Project FR-S on the track for a few events. Most of these were at Streets of Willow, a tight course with a lot of turns and…
Street Friendly (And California Legal) GD Subaru STI Build! Part Three, Getting Some Green Power With Cobb Tuning
Although our home state, California has great food and possibly the best weather in the county, the regulations that govern just about everything here have made about anything you want…
Prevent Recovery Damage with Raceseng (and Mount Your Go Pro)
We have seen cars damaged at races and track days by corner workers and tow truck drivers many times. Often the damage caused by recovering the car is worse than…
Street Friendly (And California Legal) GD Subaru STI Build! Part One
If you are a follower of MotoIQ, you are probably familiar with our way of building cars. We tend to build innocuous-looking cars stuffed full of race car technology to…
Nightmotorsport Air Oil Separating Billet Valve Covers for Subaru EJ Engines
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…
Freeing up the EJ257 Intake Flow with Process West and IAG
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…
Project GD STI, Getting Ready For the Engine Swap
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…
WATCH: How to Solve Your Subaru Fueling Problems. The Right Way!
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…
Low Buck WRX Brake Upgrade
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…
Solving Subaru EJ Oiling Issues for Good with IAG Performance!
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…
Project GD Subaru STI, Checking out the Ultimate Streetable Clutch with XClutch.
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…
Project GD Subaru STI, Building the Engine Part Five: Final Engine Assembly With IAG.
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.…
Project GD Subaru STI, Building the Engine Part Four: Assembling the Short Block With IAG.
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. …
Project GD Subaru STI: Building the Engine Part Three, Cylinder Head Technology With IAG Performance.
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…
Project GD Subaru STI: Building the Engine Part Two, Bottom End Bits With IAG Performance.
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…
Project GD Subaru STI, Building the Engine Part One, Prepping the Case With IAG Performance.
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…