COBB Tuning Blog

COBB SF Intakes are back in stock for all previous applications!

04-07 Subaru STI SF Intake	02-07 Subaru WRX SF Intake	04-08 Subaru Forester XT SF Intake	08 Mitsubishi EVOX SF Intake
03-06 Mitsubishi EVO VIII & EVO IX SF Intake	07-09 Mazda MAZDASPEED3 SF Intake	06-07 Mazda MAZDASPEED6 SF Intake

COBB Silicone Inlets are back in stock for all previous applications!

04-07 Subaru STI Post MAF Hose	02-07 Subaru WRX Post MAF Hose	08 Mitsubishi EVO X Turbo Inlet Hose	07-09 Mazda MAZDASPEED3 Turbo Inlet Hose
06-07 Mazda MAZDASPEED6 Turbo Inlet Hose

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COBB Tuning announces the availability of the XLE Blow Off Valve (BOV) for turbo equipped Subarus and the MAZDASPEED3. The COBB XLE BOV can be configured to operate in multiple modes using simple hand tools. Innovative engineering and precision manufacturing result in a compact package capable of holding high levels of boost consistently and reliably.

The COBB XLE BOV can operate in one of three modes with simple adjustments. Full recirculation is achieved by plumbing the primary output back into the intake pre-turbo with the auxiliary port closed. Full atmosphere is possible by opening both the primary port and auxiliary port to atmosphere. A hybrid mode is also possible by pluming the primary port into the intake and leaving the auxiliary port open to atmosphere, causing much of the air to recirculate to retain driveability, while still creating an audible exhaust of some of the boost pressure.

Spring preload determines the pressure differential across the BOV piston required before the BOV opens and releases the pressurized intake charge. The COBB XLE BOV can be adjusted by loosening the locknut and turning the hex-head shaft clockwise for more preload or counter-clockwise for less preload. Once preload is set, the locknut is retightened and ensures the adjustment is secure.

Materials used to construct the COBB XLE BOV ensure ease of maintenance and long service life. The mounting flange, body, vent cover and piston are constructed of 6061 T6 aluminum, the spring seat is made from 303 stainless steel and the primary outlet is polished cast aluminum. O rings are used around the piston and on the mounting flange to ensure optimal sealing. The valve body is hard anodized for strength and corrosion resistance. The piston is dry filmed lubricated, providing enduring maintenance free service.

COBB Tuning is offering the XLE BOV for the following applications:

The COBB XLE BOV is a limited edition piece and will not be available for long. Please call or visit one of the following Premier COBB Tuning facilities to order your COBB Limited Edition Blow Off Valve today:

COBB Tuning Plano (214-291-3020)
1200 Placid Ave. Suite 550
Plano, TX 75074

COBB Tuning Surgeline (503-670-9500)
16580 SW 72nd Ave
Portland, Oregon 97224

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Cobb Tuning Plano showcased cars and parts at Import Face-off in Ennis, Texas recently. We convoyed out with our friends from DFWMazdas.com and really appreciated all the help they provided with set up. Cliff Wallace, organizer of IFO had his GT-R tuned the day before at our COBB Tuning Plano facility. His car made 545wtq and 527whp on our Mustang dyno. His only modifications are mid-pipe and AccessPORT with a custom tune by Calvin Dotson. Running an 18psi map, Cliff made a 11.2-second pass at 120 mph and was warned by event staff not to do it again without a roll cage! This is easily a 10-second car and Cliff is dead-set on proving it.

Our own Chris Fleming brought out his SCCA “Fat Albert” to see how it would do in the quarter mile. The car has spent its life dodging cones and has never seen a drag strip. Chris asked one of our good friends, Austin Lasure to drive the car. With a few practice runs, Austin made an 11.9-second pass at 119mph, very impressive considering he had never driven the car before. COBB Tuning is proud to sponsor and support community events like Import Face-off. Please contact us about sponsorship for your next event!

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Two AccessPORT-tuned cars stood on the podium after this weekend’s Redline Time Attack final race at Auto Club Speedway in Fontana, California. The GOTO:Racing GT-R driven by Brian Lock took third in the Unlimited AWD Class, and the Stoptech EVO X driven by Steven Ruiz took 2nd in the Street AWD class. Both cars still run the stock ECU and were tuned with COBB Tuning’s AccessTUNER Pro.

The GOTO:Racing GT-R is making just under 800whp on the more conservative 22psi map created by Tim Bailey of COBB Tuning and Jon Drenas of HB Speed, a COBB Tuning ProTuner shop. With time winding down to shave precious tenths off their final time, Bailey upped the boost to 24psi on the AMS-modified turbos to make an estimated 800+whp. This gave the GOTO team the added power to solidify their 3rd place standing. The event ran flawlessly for the GOTO:Racing team except for a scary moment when the right rear tired blew out on the oval section at over 170mph. Brian was able to hold the car steady and bring it to a gentle stop. Damage was only superficial and the car was back out on track for the next timed session.

The Stoptech EVO X driven and tuned by Stephen Ruiz of GMG Racing had a solid weekend after their troubled efforts at Superlap Battle where they finished third. Thursday and Friday were spent swapping out their direct bolt-on Garrett GT3076 turbo, a job that usually requires dropping the engine. After finishing around 11pm on Friday, the team loaded the car up and drove out to Fontana to be ready Saturday morning for practice. “It was just tough getting to the event, doing a turbo job on this car without dropping the engine is very difficult,” said Stephen. Once at the track, the AccessTUNER Pro-tuned car ran flawlessly posting a 1:49.00 lap time, which was good enough for a first place early in the event. However, the Stoptech team was edged out by the Reese Tuning EVO. “We just did suspension tuning and tire pressures and did a very good 1:49,” said Stephen.”That was good enough for second and we are happy with that. The car ran 25-minute practice sessions without issues. No changes to the tune were needed. We did not touch the motor, just checked datalog info and everything was cool.”

Both of these cars showcase the power of the AccessPORT and AccessTUNER tools. Both cars were put through their paces, driven at their absolute limits and performed flawlessly, dispelling the myth that standalone ECUs are the only way to tune big horsepower racecars. The GOTO:Racing GT-R will be back next season ready to stand on top of the podium. Plans are already in the works at GMG to install a larger turbo and also stand atop the podium thanks to more power and tuning by the COBB Tuning AccessPORT!

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Trey HATES doing interviews, but since he is the man with the plan at COBB Tuning, we shove him in front of the cameras from time to time. This is an interview with Nads (John Naderi) from Streetfire.net about the AccessPORT and AccessPORT tuning on the GT-R!

COBB+Tuning

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The COBB Tuning-sponsored GOTO:Racing GT-R crew had a busy mid week event overcoming some serious issues to bring home a very respectable lap time at Buttonwillow Raceway at the Super Lap Battle. After coming from HB Speed where COBB Tuning calibrator Tim Bailey and HB Speed owner and Tuner Jon Drenas tuned the GT-R to make an astounding 787 whp, there were some questions about how the drivetrain would handle this massive amount of power. The first session out Brian Lock, lead driver for GOTO:Racing, reported major clutch slip, bad enough that the car could not be driven at speed. Upon the car’s arrival in the pit lane, fire was seen under the hood of the car as the heat shielding of a turbo line was smoldering. To make matters worse, Brian also reported that the car was getting serious rear brake lockup, and the car was way off pace. The crew went to work. A quick run over to the AMS paddock was made and some more heat shielding was acquired. A big thanks to AMS for the track support of their amazing turbos! After some tricky work the fire problem was fixed. Tim Bailey from COBB Surgline sent us some new maps to try on the car with manipulated load readings to try to get the clutches to engage harder.

The GT-R headed back out on track for its second session on the 22 psi map. Time to find out what the transmission would take on-track and if the dyno tune would be good under harsh conditions. Everything worked perfectly, the power delivery was nothing short of flawless, and Brian was getting some hot laps. The fun would not last though as going through the sweeper the transmission cooler line split and pumped out about 6 quarts of Willall transmission fluid all over the car. Unfortunately, the GT-R uses specialized transmission fluid and GOTO:Racing did not have enough spare Willall on hand to refill the transmission, the rest of the day was lost.

After a drive to LA and a lot of hard dirty work by the crew, the car was cleaned up and filled with new fluid and ready for the competition the next day. The crew did not sleep well though with the big question hanging in the air, is the transmission damaged? Brian also had a lot on his mind, could he actually get this pig of a car to handle the tight, bumpy, and technical Buttonwillow track? Thankfully one of GOTO:Racing’s amazing parts sponsors was on hand, Brian Hise from JRZ USA, and gave some input into the setup. Some drastic measures were taken which included sway bar adjustments, ride height changes, and shock changes.

On race day the crew was on pins and needles when the car went out for warm-up. “Transmission is perfect! Car is handling a lot better, I can acutally brake now,” reported Brian. The Dellâ„¢ Equallogic GT-R went on to set the 3rd fastest time in the morning session, and set 4th fastest time in class in the first timed session with a 1:49.3 lap time. This time was done on the 19 psi map. “I was on the ragged edge, I got everything I could out of the chassis this session,” Brian remarked after the first timed session, “we need to try to run the 22 psi map and hope we can put the power down.”

Unfortunately the chassis and brake development is a little behind the amazing power plant of the GT-R, and the fastest time would stand from the first session. Out of tires, and out of ideas other than take 1100 lbs out of the car to get down to the competition’s weight, the decision was made to save the car for Redline Time Attack the coming weekend. “California Speedway will suit this car much better than Buttonwillow,” commented Steve Lock, crew chief for GOTO:Racing, “We get to use our Hoosier R100 full slicks, which will put us back on par tire wise with the teams running C91’s, and the track is all about power, which we have plenty of.”

GOTO:Racing will be hard at work at HB Speed prepping the car for Fontana. With a solid result pulled out of a rough event, the crew looks forward to a podium finish in Southern California.

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COBB Tuning takes engine tuning very seriously. So seriously, in fact, that we are introducing the COBB AccessPORT Challenge. We will put the AccessPORT up against ANY other tuning solution out there. Regardless of who or what you are using to tune your vehicle today, we believe you will prefer the results that the AccessPORT provides!

The concept is simple. Visit COBB Tuning Plano or COBB Tuning Surgeline, purchase an AccessPORT and allow our Calibration Specialists to custom tune your ECU at no additional charge. Once the tune is complete, take your car out for a spin to feel the the results and use the AccessPORT. If you are unsatisfied in any way, we will refund the cost of the AccessPORT and return your car to the same setup you arrived with.

COBB Tuning is an automotive engineering company specializing in OEM ECU engine tuning. We develop our own hardware and software tuning tools to meet the tuning needs of the most demanding enthusiasts. We are so confident that you will appreciate the improved performance, driveability, responsiveness and features of the AccessPORT that we will stake your business on it!

So what have you got to lose? Call COBB Tuning Plano or COBB Tuning Surgeline today to schedule your COBB AccessPORT Challenge and experience why the AccessPORT is superior to all other tuning solutions . Our goal is to have you leave us knowing you have the best tuning solution money can buy. We guarantee it!

Offer only valid on new AccessPORT purchases from COBB Tuning Plano or COBB Tuning Surgeline from November 13, 2009 through December 31, 2009. Custom dyno tune may only be performed by COBB Tuning Plano or COBB Tuning Surgeline. Offer may not be combined with the AccessPORT Trade-In Program or any other discounts, coupons or price-matching advertisements. Additional restrictions may apply. See store for details.

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GOTO:Racing’s GT-R represents the very edge of development for this particular platform. There are perhaps a handful of fully race-prepared GT-Rs in the world. Of course, because this vehicle is not a factory effort, the progress on the GOTO GT-R is a direct reflection of the aftermarket industry that supports the GT-R. GOTO:Racing and the Lock family have prepared a state of the art chassis. However, at a comparatively heavy 3,400 pounds, this race car needs serious power to be competitive.

The GOTO:Racing GT-R is equipped with the COBB Tuning AccessPORT and custom mapping from a collaboration of Tim Bailey from COBB Tuning Surgeline, Portland, OR and Jon Drenas of HB Speed, Hunington Beach, CA. This form of engine management was a natural choice with the stock turbo chargers and just over 520whp, but some suggested with the recent addition of larger turbos from AMS and fuel injectors from Deatschwerks, that a standalone engine management system was needed. We are pleased to demonstrate in no uncertain terms that the COBB Tuning AccessPORT, with supporting modifications and competent tuning, is capable of coordinating extremely high horsepower.

Specifications:
Vehicle – 2010 Nissan GTR – race prepared by GOTO Racing/Brian Lock Racing
Engine – stock GT-R
Turbo – AMS stock location turbo upgrade
Injectors – Deatschwerks (800cc)
Fuel – 100 octane unleaded
Exhaust– fully catless 3”
Intake – Custom Harman Motive 3.1” ID intake with stock MAF sensors

Technical Tuning details
The key to tuning this car is the addition of the larger inner diameter intakes, kindly supplied by Harman Motive. The stock intake inner diameter is just 2.5-inches. This substantive increase in intake cross sectional area means that we can accurately measure up to 40% more airflow than is possible with the stock intake system. As you can see from the graph below, we were able to flow close to the limits of the MAF sensor without saturating their 5-Volt limit.

Because we were able to accurately meter airflow throughout the full RPM and boost range, the tuned stock ECU can easily control ignition timing and fueling. We have supplied relevant information for the rest of the tuning parameters in the additional graphs.

Please feel free to post your comments/questions below, or email Tim directly at tim.bailey@cobbtuning.com.

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Since its release in 2007, the Mazdaspeed3 has proven itself to be a potent performer. With just a few simple modifications, the MS3 is able to put down some impressive horsepower numbers. Coupled with a COBB Tuning AccessPORT and exhaust modifications, we have seen cars making over 350whp!

With the release of the 2010 Mazdaspeed3, COBB Tuning is able to announce that work has begun on the development of AccessPORT compatibility for this new generation of Mazdaspeed models. While still in the initial R&D and testing phases, COBB Tuning will be using our brand new 2010 MS3 as a test bed for the AccessPORT and other products. This newest Mazadaspeed3 features an all-new ECU which represents new challenges for the engineering team at COBB Tuning. Look for an AccessPORT for the 2010 Mazdaspeed3 to be available in the first half of the coming year. In the meantime, check back to our blog for exciting updates as we work on our 2010 MS3 project car and feel free to drop by the COBB Tuning Plano shop to get a close look.

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COBB Tuning is pleased to announce significant updates to the Mitsubishi EVO X AccessPORT firmware and AccessTUNER software. Several enhancements have made it even easier to tune the EVO X across a wider range of modifications and fuels. Torque monitor disabling, improved boost control between shifts and access to cranking enrichment tables that should allow for finer tuning of alternative fuels like E85 all make it into this AccessPORT firmware and AccessTUNER software release.

COBB Tuning has responded to tuner requests to disable checking of the torque and airflow limit tables. The logic that checks to see if torque and airflow are within targets can now be toggled on and off through AccessTUNER software. This will make tuning the EVO X easier and prevent DTC’s and limp modes from occurring when measured values are outside of table targets.

The EVO X MR receives upper and lower timing bound tables to better control boost during flat-foot-shifts with the Sport Shift Transmission. Retard tables can now be adjusted for shifting events, eliminating boost spikes between shifts.

Fans of ethanol based fuels will appreciate the new cranking enrichment table. This tables allows control of start-up fuel delivery, enabling the tuner to add the necessary fuel volume required for easy cold starting on ethanol.

Lastly, data monitors have been better aligned between the AccessPORT and AccessTUNER. “Low Det. Weight” and “Inj. Duty Cycle” monitors have been added to the AccessPORT to match AccessTUNER, while several AccessTUNER monitor names have been changed to match their AccessPORT equivalents.
To take advantage of these enhancements, the latest AccessPORT firmware and AccessTUNER software releases are required. Follow these instructions to ensure you have the latest versions:

AccessPORT Firmware: Plug the AccessPORT into your computer using a USB cable and start the AccessPORT Updater software. AccessPORT Updater will automatically download the latest version of the firmware and install it on your AccessPORT. Click HERE to download the latest version of AccessPORT Updater.

AccessTUNER Software: Fill out the AccessTUNER Race Order Form, making sure your email address and AccessPORT serial number are accurate. You will receive an email within 24 hours that contains a link to download AccessTUNER Race. Please be sure to check your spam folder in the event you have not received a download link email within 24 hours.

COBB Tuning is dedicated to meeting the tuning needs of the most demanding EVO X enthusiasts. More exciting news regarding the Mitsubishi EVO X AccessPORT will be announced soon!

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