COBB Tuning Blog

If you can dream it, you can build it! EFI Logics may be the first US Company to tackle a big power build on Subaru’s funky new 2010 Legacy GT. Because of the new turbo design being very different than previous versions, there are few aftermarket parts for the new LGT. Undaunted, the crew at EFI logics felt that they could hit their customer’s desired 300whp goal while still using the stock turbo location and maintaining a very stock-looking and daily-drivable car. The COBB Tuning AccessPORT was the engine management solution chosen for this build. While map selections are currently limited to Stage1, AccessTUNER Pro and AccessTUNER Race let ProTuners and enthusiasts create their own calibrations for bigger power gains!

This build is all custom with very few off the shelf parts. The turbocharger is a custom made unit by BNR Supercars with the guts of a TD05 shoved into the stock VF52 turbo housing and is fed by an EFI Logics custom intake using a KSTech MAF housing. Boost pressure is vented via a Forged blow off valve between shifts and is mounted to an EFI Logics custom front mount intercooler. Boost control is done via a Grimmspeed 3-port unit. The exhaust features a BMC downpipe feeding an Invidia Q300 catback. The injectors are 750cc Deatschwerk topfeeds fed by a Walbro 255lph in-tank pump. Power is transmitted to the transmission via an ACT HD Street clutch. Tuning is accomplished with the COBB Tuning AccessPORT and the combination is good for 318whp and 348wtq on pump fuel.

While there are currently no parts readily available for these vehicles, adventurous owners are still able to make power with some creativity and of course, the COBB Tuning AccessPORT! To read more about EFI Logic’s killer build, head over to LegacyGT.com for more photos, information and comparison dyno charts!

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Congratulations to the top 5 entries of the 2010 COBB Tuning Film Festival. Evan Younker of Winter Park, Florida takes home the Grand Prize of $2000 for the most viewed video of the competition. But the contest isn’t over yet. It is now up to you to decide which is the best video for the People’s Choice Award, worth $500! Simply watch the videos from our 5 finalists then vote for the one you like the most.

While you are doing that, the COBB Tuning staff will be voting on the videos to select the COBB Employee’s Choice Award, worth another $500!

Check back on September 13th to see who took home the People’s Choice Award and the COBB Employee’s Choice Award.

		Evan Younker Winter Park, FL
		Raksmey Praing Homestead, FL
		Ryker Garrett West Jordan, UT
		Jared Auslander Astoria, NY
		Barbara Manrique Garden Grove, CA

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We have begun testing and R&D on the brand new, 2011 Subaru STI Sedan. Subaru says this is the most powerful STI ever. We’ve made it even more powerful with a COBB Tuning AccessPORT, COBB Tuning Catted downpipe and an SPT catback for a 2009 WRX Sedan! Stay tuned for updates at The COBB Tuning Homepage or sign up for our Mailing List for COBB Tuning news and updates delivered right to your inbox!

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COBB Tuning Surgeline customer Brian Gee and his 575whp GT-R made the pages of the September 2010 Issue of SuperStreet Magazine. Brian’s 2009 GT-R was built and tuned at COBB Tuning Surgeline in Portland, OR by GT-R maestro, Tim Bailey with a COBB Tuning AccessPORT. The car features a custom fuel system built by COBB Tuning Surgeline so that this Godzilla can run on E85! To read all about Brian’s killer ride!

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Big-power and high-speeds demand efficient and effective aerodynamics to keep the tires planted, especially when racing around the “roval” of Auto Club Speedway at 180mph! When the COBB Tuning Motorsports team decided to revise the aerodynamics package on their wide-body 800hp GT-R, they went right to experts at Aeromotions. Not only does the Aeromotions R2 Static Wing provide more downforce at much higher efficiency than other offerings on the market, it is designed to withstand the huge loads generated from the sustained ultra-high-speeds that are only seen on the country’s fastest race tracks.

“I am very impressed with our new Aeromotions wing,” said GT-R driver Brian Lock. “We were able to balance out our aero package with 3 degrees less angle than our previous wing. This tells us that the Aeromotions aerofoil is extremely efficient, creating the same downforce with less drag. This should definitely show on the time sheets at tracks like Auto Club Speedway where drag is a major problem. And considering the 180+mph speeds reached at that track, knowing that this wing is built to withstand the huge aero loading gives me the confidence to push that much harder.”

The Aeromotions wing element was born in a wind tunnel at the Massachusetts Institute of Technology and was continuously refined through computational fluid dynamic (CFD modeling) to bring it to its current high-downforce, low-drag, 200+mph configuration. However, the excellent wing element design is just the start of Aeromotions’ solution. The wing is upgradeable to an active element that can change its angle of attack via high-speed servos and sophisticated control software based on what the car is doing at any given time.

On straights the wing lays flat to reduce drag when downforce isn’t needed. In the braking zones it pops up to maximum angle of attack for improved stability and enhanced rear braking. In the corners it goes to the position that provides the best mid-corner balance as set by the driver. Aeromotions’ on-track testing with data-acquisition has shown that simply by switching the Aeromotions wing from static-mode to active-mode can drop lap times by up to 1.5 seconds.

Race car development is a continuous endeavor with smaller and smaller returns on additional investment. This upgrade path from a simple fixed wing element to full-on active wing control offers a perfect entry point for the racer on a budget to acquire a wing with wind tunnel designed aerodynamics and motorsports grade construction and mounting hardware for just $1,699, with the option of significant performance enhancements by upgrading to the full active wing as budget allows. The prospect of flipping a switch and dropping 1.5 seconds off the lap time of a fully sorted race car is a valuable option!

With the recent win at Round 5 of the Redline Time Attack at Autobahn Country Club, the COBB Tuning Motorsports Team learned firsthand just how responsive, efficient and effective wing the Aeromotions R2 Static wing is. With the next event at Button Willow and its fast sweeping turns, the team will continue to explore the limits of performance and balance with the help of Aeromotions.

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With the season off to a rocky start and the GT-R suffering engine trouble, I wasn’t sure what to expect at the Auto Club Speedway event. However, with a month of downtime spent rebuilding both the STI and the GT-R, we decided to go for broke and run the GT-R in both Modified and Super Modified with our new Yokohama A005 slicks.

However, we were taking on a big challenge running two classes, and on a motor that was not track tested, and with a front diff that was not track tested. The weekend before we had missed our test day due to some knock sensor issues with the new forged internals of our GT-R engine. With no test day under our belt, anything could have happened. And with our racing luck this year, I was sure that anything WOULD have happened to upset our weekend. To ward off any bad monkeys that might have been following me around on my back, I dyed my hair COBB blue for the weekend.

Perhaps it was the blue hair, or maybe it was all the hard work and preparation put in by the COBB Tuning Motorsports and Surgeline crews, but it worked! We had an extremely trouble free weekend and took home 4 top spots, in Modified, Super Modified, the Super Session and the overall event win! In addition our street class STI took home its first, 1st place win, so I think I may have to go blue for the rest of the season. After a long month of sleepless, work-filled nights, insanely long hours, lots of travel, and enough anxiety to cause physical ailment, this event really gave me and the team a shot in the arm. Yes, a lot of the big hitters were not there in Super Mod, but I believe our time was still competitive given the track conditions. It was also our narrowest margin of victory in the modified class with James Elterman in the COBB sponsored Takata Time Attack/LIC Motorsports STI getting faster every event.

The only problem from the weekend was a bizarre front diff issue. To be clear, it wasn’t a front diff issue at all. Our new OS Giken front LSD was functioning perfectly, it was the brain of the GT-R that was confused. Imagine that. For some reason the lack of differential front wheel spin was causing the ECU to not demand FWD from the center differential. The result was a kind of a RWD car for the weekend, although worse because the FWD would go on and off, creating an exciting ride behind the wheel with 700+ lb feet of torque, and a chassis not setup for RWD only. But with a lot of sideways driving and a set of corded RA-1′s later, we got the results we wanted which included the new track record for a Modified Class car.

Now it’s on to Chicago, and Autoban Country Club for Round 5, the second round of the East Coast championship. I really am looking forward to this event. I love learning new tracks, seeing new competitors, and I believe we are going to have our toughest event to date battling with Ryan Gates in his EVO X. That car has shown some incredible speed in practice at a couple of event, but mechanical faults have kept it out of any official times sessions.

See everyone in Chicago, with a fresh coat of COBB blue in my hair.

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Following the 3rd round of the Redline Time Attack series at Las Vegas Motor Speedway, the COBB Tuning Motorsports GT-R was trucked to the COBB Tuning Surgeline facility for a complete teardown and rebuild. The engine that was installed in the GT-R after the first-round Buttonwillow race, was from a wrecked street car and had quickly succumbed to the rigors of motorsports. The crew from COBB Tuning Motorsports and COBB Tuning Surgeline, worked quickly and tirelessly to tear down the injured car, remove the engine, and have it rebuilt and ready in time for the next race at Auto Club Speedway in Fontana, CA. Parts were flown in from all over the country and proved to be difficult to source for Nissan’s supercar. But the team was able to get the engine back together and the car tuned, just in time for the 4th round event. Look for the car to dominate the track in California!

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Recently, the World Challenge Brass Monkey Racing GT-R’s got a little help in the power department thanks to AMS Performance and the COBB Tuning AccessPORT. The twin GT-R’s were tuned at AMS Performance’s tuning facility, both with the COBB Tuning AccessPORT, proving once again that the AccessPORT is motorsports grade! Follow the Brass Monkey Team this season by visiting their website.

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With victory and champagne fresh in the minds of the COBB Tuning Motorsports team, Friday afternoon practice signaled the begining of a tough weekend for the team for Round 3 of the Redline Time Attack at Las Vegas Motor Speedway. The GT-R of Brian Lock continued to have engine issues in Las Vegas, despite it’s miraculous 11th-hour victory in New Jersey.

An oil change following the Friday practice session revealed large quantities of bearing material, most likely caused by an oil starvation issue discovered during a track testing session earlier in the week. Knowing that complete engine failure was eminent should the car continue to compete, the team decided that caution was the better part of valor and parked the GT-R for the weekend.

Down but not out, Brian Lock and STI diver, Cameron Benner, will share Benner’s car for the remainder of the weekend with Cameron continuing to campaign in Street Class, and Brian looking to secure some points in the Modified Class.

COBB Tuning founder, Trey Cobb, continues to mature as a driver and has showed good speed at this tight and technical 2.2-mile Las Vegas track. Look for Trey near the top of the podium on Sunday!

For more photos from the weekend click HERE for the COBB Tuning Flickr page.

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Check out the April 2010 Issue of Modified Magazine for the low-down on a very sexy, and well-executed 2008 STI built by AccessPORT ProTuners P&L Motorsports! This car, which was inspired by the owner’s father’s love for all things Hotrod, features a P&L custom turbokit centered around a Garrett GT35R turbocharger. A COBB Tuning double-adjustable shortshifter and shift knob, as well as a COBB Tuning lightweight pulley also round out this spectacular car filled with cool JDM goodness. The car was tuned on a COBB Tuning AccessPORT to over 360whp and 370wtq on pump fuel. Look for a copy available on newstands right now!

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