RallySport Direct GTX3076 2011 STi

Event: Dyno Tune/ Product Testing
Location: ZipTie Dynoworks, Salt Lake City Utah.
Ambient Temp: 75-80F
Ambient Pressure 12.7psi/ 86kPA
Elevation: 4600ft
Weather: Sunny

Car: 2011 STi
Tuner: Christian of Cobb Tuning
Dyno Info: Mustang
Transmission: 6spd
Gear: 4th
Peak HP at RPM 91 Octane : 335WHP @ 5600RPM. Corrected
Peak Torque at RPM 91 Octane: 337WTQ @ 4600RPM Corrected

Peak HP at RPM 104 Octane: 382WHP @ 5600RPM. Corrected
Peak Torque at RPM 104 Octane: 382WTQ @ 4600RPM Corrected

Baseline hp/tq for a stock on same dyno: Stg2 2011 STi 262HP and 286TQ.
Target Boost: S# on Pump Gas 22PSi, S# on Race Gas 25PSi
Target AFR: 10.8-11.4 depending on the fuel
Fuel: 91octane with 10% ethanol, Sunoco GT104 unleaded.


Engine/Power Modifications:

Cobb Tuning AccessPort
Cobb Tuning Down Pipe
Cobb Tuning Heat Shield
Invidia Q300 Ti Tip Catback
Samco Radiator Hose Kit
Koyo Aluminum Racing Radiator
Omni Power 4 Bar MAP Sensor
Injector Dynamic 1000cc TopFeed Injectors
DeatschWerks 300lph Fuel Pump
Process West Top Mount Intercooler
Tomei Fuel Pressure Regulator Type-S
Tomei Fuel Pressure Gauge
ATP GTX3076 Turbo
Tomei Expreme Unequal Length Exhaust Manifold
GrimmSpeed Air Oil Separator
GrimmSpeed Manual Boost Controller
GrimmSpeed Electronic Boost Controller
GrimmSpeed External Waste Gate Bracket
AMR Performance Cast Turbo Inlet
GTSpec 44mm V-Band 3-Bolt External Wastegate Uppipe
TurboSmart Duel Port Blow Off Valve
Turbosmart Hyper-Gate45 Wastegate
Prova Radiator Cap


MODE RACING Double Adjustable Short Shifter
Kartboy Shifter Bushings (Front/Rear)
PST Carbon Fiber Driveshaft


91 Octane Vs Stage 2

104 Vs Stage 2

GT104 S# vs 91 S vs 91S#

Conclusion from our Test:
Starting off from where we left off on our 2011 STi sedan.
After finishing product testing on the Tomei Arms M7960 it was time to test out another turbo. We chose to go with the brand new state of the art GTX billet wheel technology from Garrett, and use the ATP GTX3076R Stock location turbo.

The goal for this stage of the build was to really maximize and fully utilize the stock components along with having a very fun and efficient car that was realistic for someone to drive on the street, track or drag. This turbo would be the perfect match for anyone who is trying to get the most out of a stock motor, have quick response, and have one wicked car.

To put everything out on the table, we really feel as though we were maximizing several key components on the car, the motor, and clutch is still 100% stock. The Process West intercooler was getting close to its peak efficiency, the turbo was running at 25Psi, and given the octane of fuel we were getting close to the peak stability point of both fuels that where being used. The amazing thing is just how fast this turbo spools, looking at both race and pump gas you can see that compared to the stock VF48 the increase in lag is quite minimal for the huge gain in performance. Also given the altitude of 4200ft this turbo, compared to sea level it would be able to easily produce over 400WHP at similar conditions due to the increased air density.

The power delivery on the vehicle is very smooth and predictable, given the high efficiency TMIC the lag is kept to a minimal and the throttle is very responsive. The vehicle very easy to drive, quick, fun, and overall a simple build utilizing quality bolt on components from proven manufactures ensuring that everything is running at a safe and optimal level.

Huge thanks to the following manufacturers:

Cobb Tuning

Subaru BRZ Concept -STi-



The Subaru BRZ Concept – STI is a study of the sports car distilled to its essence, and it’s unveiling in a sneak preview event, November 16 at the Los Angeles Auto Show.

The Subaru BRZ Concept – STI sports a lightweight design with nimble performance. One of the newest features is the 2.0-liter SUBARU BOXER® engine that sits lower and farther back in the engine well, enhancing the torque and handling while offering greater fuel efficiency and power. It’s light, agile and totally dialed in to the driver.

See it at the LA Auto Show from November 18-25, 2011. After that, the 2013 BRZ will make its international appearance on November 30 in Tokyo, while the U.S. production model will be unveiled at the 2012 Detroit Auto Show.




2011 Ford Fiesta RS for WRC

Ford is taking the Fiesta rallying – and this is the first look at the final 2011-spec car in its new livery, unveiled at the Autosport International show in Birmingham. The Fiesta’s first competitive outing will be the Rally of Sweden, which starts on 10 February.

The Fiesta replaces the Focus as Ford’s World Rally challenger, as the WRC rules have changed in favour of smaller cars powered by 1.6-litre turbocharged engines. The new Fiesta features “powered by EcoBoost” branding as a result, as part of its revised livery.

Finnish driver Mikko Hirvonen, who will once again be partnered by compatriot Jari-Matti Latvala and Emirati driver Khalid Al Qassimi in the Ford Abu Dhabi World Rally Team, unveiled the newcomer.

Cumbria-based team M-Sport continues to run the Ford rally effort. As well as the three factory cars, the firm plans to run up to seven other Fiestas on events for private teams.

In Sweden, M-Sport will run three cars for the Stobart team, for Mads Ostberg, Henning Solberg and Matthew Wilson, the Monster World Rally Team entry of Ken Block, and another car for Dutch star Dennis Kuipers.


Third-Generation Subaru Boxer Engine

I know right? About time! The second gen motors have been in use for about 21 years now since the first Legacy models in 1989, so I can safely say that this is long overdue.

The new motor will remain horizontally-opposed like its predecessors which will allow it to remain lightweight, compact, keep a low center of gravity, and have superior vibration balance characteristics. Aside from being based off the boxer platform, it will be completely re-designed. What we know so far is that the new-generation will remain 2.0L and 2.5L respectively. As far as performance goes, we will see an increase in stroke length as well as the utilization of AVCS (Active Valve Control System) on both intake and exhaust cams (much like the 08+ STi). The increased stroke length will help provide more torque in the lower to mid RPM range. Using lighter pistons and connecting rods as well as a more efficient fuel pump, friction loss will be reduced up to 30%. What that translates to is a 10% improvement in fuel efficiency and smoother acceleration in all speed ranges.

Expect to see the new motor used first in the Forester before making its way into the other platforms later on. Unfortunately, Subaru has not provided any power numbers yet so we will have to wait and see but we are definitely excited to see what this thing can do, performance wise 😉 .

Travis Pastrana Breaks 12-year Record on Mt. Washington Auto Road

The 149-year-old Mt. Washington Auto Road in Gorham, New Hampshire has seen the likes of horses and carriages, camels, people, bicycles and most famously, competition race cars. Yesterday, traveling at an average speed of nearly 72 miles per hour in a Subaru rally car, four-time Rally America National Champion Travis Pastrana made sure the project moniker, Red Bull Speed Chasers, lived up to its name.

He reached the summit faster than anyone else in history by clocking an officially timed run of 6 minutes 20.47 seconds, besting the previous record by more than twenty seconds. Amazingly, Pastrana achieved the impressive time on his first-ever high-speed run to the summit.

Pastrana has effectively thrown down the gauntlet in advance of the legendary Mt. Washington “Climb to the Clouds” Automobile Hillclimb, which will take place in 2011 after a 10-year hiatus.

Brian Nevins/Red Bull Photofiles

The 7.6-mile-long Mt. Washington Auto Road is one of the ultimate challenges for driver and automobile. The serpentine tarmac-and-gravel road is lined with trees and dangerous drop-offs above the mountain’s tree line as it winds its way to the 6,288-foot summit of the Northeast’s tallest peak. The road, which features more than 100 turns, is mostly paved but features a technical dirt section that is approximately one mile long.

Pastrana was up to the challenge and was able to set his fast time on his first attempt, besting “Climb to the Clouds” Hillclimb record holder Frank Sprongl’s time of 6 minutes 41.99 seconds, set in 1998. Pastrana attempted three more runs but each time he was slowed by near zero-visibility conditions close to the summit, as low rain clouds inundated the area.

“This is an amazing road, it’s just so much fun,” said Pastrana, who on last New Year’s Eve set the world record for distance jumping in a car at 269 feet. “It’s extremely challenging; there is no room for error and the scenery is epic. The Mt. Washington Auto Road has some amazing history to it.”

Brian Nevins/Red Bull Photofiles

Pastrana, with his Vermont SportsCar team, as well as officials from the Mt. Washington Auto Road, conducted the Red Bull Speed Chasers test session to evaluate the road conditions ahead of the 2011 Climb to the Clouds, which will make its return June 22-26, 2011 as part of the 150th anniversary of the Mt. Washington Auto Road.

Pastrana teamed with veteran co-driver Marshall Clarke of Ireland on his runs to the summit. The duo spent Tuesday familiarizing themselves with the auto road in a street car at legal speeds and made detailed stage notes, the same process used for stage rally competition. Both Pastrana and Clarke had never driven the Mt. Washington Auto Road before, and thus the detailed notes played a key role in the at-speed attempt the following day.

Brian Nevins/Red Bull Photofiles

The Mt. Washington Auto Road was completed in 1861 and is the oldest man-made attraction in North America. Considered one of the oldest motorsports events in the United States, the Climb to the Clouds was first run in 1904, with a winning time of 24 minutes 37 seconds, seven years before the first 500-mile race at the Brickyard in Indianapolis and twelve years prior to the inaugural Pikes Peak Hillclimb in Colorado.

The Climb to the Clouds was then run sporadically until 1961, making a comeback in the 1990s. The last time the Climb to the Clouds ran was in 2001 on a shortened course due to severe weather. In fact, the highest-recorded wind speed in the United States – an incredible 231 miles per hour – was on Mt. Washington in 1934.

“Travis’ run was incredibly thrilling on a number of fronts,” said Howie Wemyss, General Manager of the Mt. Washington Auto Road. “It’s amazing that he was able to drive that car to the summit in 6:20, and all the more so when you realize that he and his co-driver had just seen the Auto Road for the first time the day before, and the top quarter-mile was in thick fog! Our racing heritage here at the Auto Road runs deep, and now Travis is part of that heritage as the fastest person to the summit by automobile.”