STI

 

18

Sneak Peek: Killer B Motorsport’s KILRB1

by Khiem Dinh

Those who race a Subaru know the name Killer B Motorsport. They likely have a number of Killer B parts on their car, such as the engine saving Killer B oil pickup, which replaces the failure prone OEM component. Aside from their oil related products, Killer B is well-known for their unique and highest performing Holy Header too. KILRB1 is the car all those parts were developed on, and it is the highly regarded STi in the Subaru world for its top-notch build quality and innovation. 


 

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23

Japanese Cars That Don't Suck

by Mike Kojima

I pissed a lot of people off with my Japanese Cars Suck article a few weeks ago, where I expressed dismay at the boring state of the Japanese car industry. Japan Inc. seems to be producing either the uninspired transportation device or the trying too hard, over the top stuff that seems like something out of the Fast and the Furious or Transformers franchises.


 

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06

Testing Radium Engineering's Advanced Self-Draining Catch Can!

by Mike Kojima

Having proper crankcase ventilation is critical on a performance engine, especially forced induction ones that have more blowby past the rings by nature. The pressure needs to be relieved. Excessive crankcase pressure can blow seals, cause severe smoking from the turbo and affect piston ring seal causing smoking and losing power. 


 

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03

anti lag rocket beyond the dyno

External Combustion Rocket Anti Lag System + JDM Spec C Impreza STI

By Eric Hsu 

The external combustion anti-lag "rocket" combustor was used on the factory Prodrive built WRC STi Subaru cars to improve the EJ20 engine's inherent mediocre torque and engine response. The rocket is so good that a version of it is still in use today in the 2012 Japanese Super GT GT300 STi BRZ which also uses an EJ20. Last time I wrote a teaser article, but this time we'll take a look at some of the details of the rocket combustor anti-lag system as it applies to my buddy Ben's JDM Impreza STi Spec C street car over in the UK. 


 

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25

Steve’s STi: Doing It Right!

by Frank Ewald

When talking with Steve about his car you can sense the passion he has for his STi but also for amateur motorsport. Our discussions went on and on as we chatted about the car, friends we have met at the track, the challenges of building a car that performs how you want it to, and the joy of volunteering and seeing newcomers get inspired by track events. The heart of this story, however, is this 2004 STi which, when you get right down to it, has had almost every component and body panel modified in the pursuit of performance. And boy has it worked!


 

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06

Project GD STI: Getting More Power with Precision Turbo and Cobb Tuning! Part - 1

by Mike Kojima

Our STI has been driving around as a daily for two years now with all of the typical bolt ons.  It has been reliable at 318 whp with good driveability and fuel economy on regular pump gas, in other words a hassle free car that is very easy to live with.  Of course if good was enough, more is better and we could not leave good enough alone.


 

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18

MotoIQ Project Gen 3 STi Crawford Performance FMIC front mount intercooler turbosmart clamps Project Gen3 STi - Fueling and Intercooling

by Wes Dumalski

You may have heard the expression 10 lbs of shit in a a 5 lb bag before. Well I am fairly certain the origination of that statement came from the first person to try and remove the intake manifold from an EJ25 and work on the systems surrounding and underneath! In our quest for more power and greater reliability we dive into the bowels (the heart would be the engine) of the boxer motor to upgrade our fuel system, improve the intake and intercooler efficiency and well… To reduce the amount of useless crap tucked in to the engine bay. 


 

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14

STi Weds SA15R Kartboy Crawford FMIC

Project Gen 3 STi - Wheels, Bars, and Bits 

by Wes Dumalski

It's single digit temperatures outside and the car is under the knife for a HUGE round of modifications! It doesn't run, we have gotten 14" of snow in the last 48 hours and what are we doing? Why using our daily driver to tow it out of the garage to shoot pictures of our new goodies from Weds Wheels, Progress Suspension, Go Fast Bits, and Kartboy. We risk frost bite to bring you this latest installment of Project Gen3 STi, luckily for you the Internet is warm.


 

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28

GrimmSpeed Subaru top mount intercooler tested MotoIQ

Tested: GrimmSpeed Subaru Top Mount Intercooler

by Wes Dumalski

Around here we appreciate quality and well thought out parts that fill a void in the marketplace. Regardless of company size or the expanse of their market reach it is refreshing to see a company and its collective mindset introduce a product that doesn’t re-invent the wheel but goes a long way to making it much more efficient. In this case that company is GrimmSpeed and that product is their Subaru Top Mount Intercooler. 


 

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25

Ask Sarah: BOV's and Accusumps

By Sarah Forst

Jury is still out.  Let's debate whether blow off valves are necessary and if Accusumps are effective enough at protecting your engine from oil starvation.


 

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11

Project Gen3 STi GR suspension M7 coilovers SUbaru

Project Gen 3 STi: Suspension upgrade with M7

by Wes Dumalski

When last we left off with Project Gen 3 STi we were enjoying the power and up to this point the only modifications we had done so far were to make the car go faster. It was time to change that as the GR STi is a bit soft around the middle. Our friends at M7 came to our rescue with their Super Street Performance Coilover setup. We were eager to put this new suspension through its paces to see what type of performance it really offered so step inside and read all about it.


 

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15

Global Time Attack Road Atlanta 2013 Doug Wind SRT4

Global Time Attack - Round 1 - Road Atlanta 

By Wes Dumalski 

Quality images by Sarah Forst and mediocre shots by Wes Dumalski 

Attacking time is a funny thing… All sorts of things happen during these 2 day race weekends and no one knows what mother nature or Newton has in store for us. This past weekend at Road Atlanta both of these personas had a chance to show us who's boss and utterly prove that we are in control of very little. In this case the Saturday forecast brought likely promises of rain and when the teams hit the track to sunny skies they were in a fury to set down fast laps as no one knew (not even the weather people; do they ever?) what would unfold. As luck would have it the rain held off and as teams pushed ever further it was Newton who would prevail on this day. Through 11 wins in a row and numerous track records the Professional Awesome EVO VII would turn its last laps in anger, its life cut short by Road Atlanta.


 

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28

Fast Fridays - Just Another Friday Night in Kansas

By Pablo Mazlumian

Cars, cars and more cool cars...in Kansas?  Coastal American residents likely wouldn't expect to see such an assortment of muscle cars and exotics in the KC suburb of Overland Park, Kansas.  Shoot, it's adjacent to a town called Prairie Village.  But when spring arrives, a slew of local enthusiasts get together every other Friday to cruise and talk shop.


 

 

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22

Turn in Concepts TiC X Brace CarLab Development

Tested: TiC WRX Suspension Components 

By Wes Dumalski

Here at MotoIQ we really love our jobs; despite the pay or lack thereof we get the chance to play with some really cool toys, see some really cool cars, and test some cutting edge parts! One of the difficult things we face is having parts we really want to test that do not apply to one of our immediate project cars. When we have those scenarios we are forced to improvise by finding a guinea pig vehicle and having our way with someone else's ride for our own sick pleasure and for the sake of filling this web-site with real world content.  In this case the bovine friendly folks at Turn in Concepts wanted us to put some of their latest products through the proverbial MotoIQ paces and report back with our rants and raves. 

For this test TiC wanted our review on the CarLabs Development X Brace and Super Sexy bushing set for the 02-07 Impreza Sedan platforms.


 

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25

 Modified StreetCar Shootoout Full Race S14

2013 Modified StreetCar Shootout - The Rules, The Cars, The Big Tease.

By Wes Dumalski and Sarah Forst 

Like all good stories, this one starts on the airplane while on line for the shitter. I hear a voice come up behind me “my GOD this woman won’t shut the hell up”... I turn to fund the animated Bill Caswell and we begin bantering about this woman on the plane who had been talking about absolutely nothing at all for 2 hours. I am on this plane and talking to Bill Caswell because I could not get a refund on my Expedia package and rather than let the tickets go to waste I figured I could still head to Arizona and cover the UMS tuning time attack event and find some good feature cars. As luck would have it two complete car nuts are on the same plane heading to the same place to do the same damn thing; be geeks. 


 

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20

turbosmart BPV subaru STi impreza

Project Gen 3 STi - Impressions of the Turbosmart IWG75 and BPV

By Wes Dumalski   

"Hey Bro, do you want to test some Turbosmart stuff?" The quoted text is from none other than Martin G from MotoIQ headquarters asking me if I would like to play with any Turbosmart products on our GR STi project. With this project still in the early and mild stages I first scratched my head wondering what I would be able to use and test. When I think Turbosmart I envision huge external wastegates on race cars and e-boost setups. Initially I wondered exactly what I could even use on the STi... Not wanting to miss an opportunity I perused their site and used their vehicle specific search feature to see what they had available.


 

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16

COBB, Subaru, External Uppipe Kit with TiAL MV-R 44mm Wastegate

COBB Tuning - Subaru External Uppipe Kit w/TiAL MV-R 44mm Wastegate

Industry Press Release

When you are ready to step up to high boost and big power in your Subaru, the COBB Tuning External Wastegate Kit with TiAL MV-R 44mm External Wastegate will give you the precise boost control needed for reliable power production. The COBB Tuning External Wastegate Uppipe Kit replaces the stock restrictive uppipe and allows an external wastegate to control turbine-bypass-gasses instead of the restrictive internal wastegate that is integrated into the turbo housing.


 

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10

Project GD STI - Checking Out The Development of KW's New 3-Way Adjustable Clubsport Coilovers

By Mike Kojima

A few months ago we visited KW Suspensions' factory in Germany to learn about the development of  their new 3-way adjustable Clubsport coilovers.  We feel that the 3-way Clubsport is a pivotal product for KW.  It promises the flexibility in tuning of expensive elite Motorsports only shocks that are priced out of reach of most enthusiasts in a package that is 50% less than the custom uber dampers.


 

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16

MotoIQ Project Subaru STI

Project GD STI- Improving the Fuel System with Injector Dynamics and Other Details

By Mike Kojima

When we had last left off on Project STI's engine, we had just upgraded the cooling system in anticipation of another round of tuning.  What was supposed to be just some routine installation of a few parts to get a little more power ended up being something a lot more complicated, time consuming and involved.


 

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07

Project GD STI- Getting it Slowed Down with Stoptech

By Mike Kojima

The Subaru GD STI comes with pretty good brakes from the factory, big Brembo 4 piston front and 2 piston rear calipers squeeze big vented rotors. In other words the stock brakes are already quite good, what would have been state of the art just a few years ago. This means we would have to be careful when it comes to modding them, it is easy to mess things up and actually do worse than stock with a poorly engineered brake upgrade.  So why would we want to change them out with something else?  The main reason is that since our car is going to see some occasional track use, we want to upgrade our brakes so we can drive our car to the track for an event without the hassle of having to switch pads at the track.  The big brakes will allow us to run at speed on a streetable brake pad.  Bigger more powerful brakes will also be easier to modulate. The third reason is admittedly that big brakes just plain look cool! We went with Stoptech as the brake system of choice for their combination of daily driveability and track performance.  We selected Stoptech's Trophy STR big brake kit.


 

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