COBB Tuning Blog

Boost select maps for Stage1 stock intake-equipped 2008-2010 STIs are now available for download from COBB Tuning. Our proprietary boost-select maps let users dial in their peak boost settings, allowing the driver to fine tune their car for current conditions for either maximum boost for best performance or decrease boost for better fuel economy or poor road conditions.

With the boost select maps flashed to the vehicle, boost can be dialed in from low to high boost by using the SI-Drive knob to select between the two different boost settings. Boost can be increased by 3 psi from “S” mode to “S#” mode using the SI-Drive knob on the fly.

Boost select is only available on specific calibrations and only from COBB Tuning from our OTS Map Download Pages. For more information see the map notes or give us a call at 1-866-922-3059 for more information.

Stage1 93 v301 Boost Select – Intended for 2008-2011 Subaru Impreza WRX STi vehicles with stock intake system, and a stock exhaust running 93 or 94 octane petrol. Boost Targets: ~18psi (S#) or 15.5psi (S) peak boost pressure tapering down to ~13psi by the 7000 RPM redline, +/- 1.0psi.

Stage1 91 v301 Boost Select – Intended for 2008-2011 Subaru Impreza WRX STi vehicles with stock intake system, and a stock exhaust running 91 or 92 octane petrol. Boost Targets: ~17.5psi (S#) or 14.5psi (S) peak boost pressure tapering down to ~13psi by the 7000 RPM redline, +/- 1.0psi.

Stage1 ACN91 v301 Boost Select – Intended for 2008-2011 Subaru Impreza WRX STi vehicles with stock intake system, and a stock exhaust running Arizona, California or Nevada 91 octane petrol. Boost Targets: ~17.5psi (S#) or 14.5psi (S) peak boost pressure tapering down to ~13psi by the 7000 RPM redline, +/- 1.0psi.

“HWG” and “LWG” Versions – All Stage1 maps now include high wastegate and low wastegate duty cycle versions to accomodate variances in vehicle production.

• HWG: Higher wastegate duty cycles (HWG) for use when regular calibration produces lower than targeted boost.
• LWG: Lower wastegate duty cycle (LWG) for use when regular calibration produces higher than targeted boost.

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COBB Tuning is happy to announce the release of revised Stage1 maps for all BMW AccessPORTs. These new v2.02 maps feature slight revisions to fuel, boost and ignition tuning as well as alternate maps with different throttle calibrations to suit a wider range of drivers. In addition, ACN91 (Arizona, California, Nevada) calibrations have also been added to support users in these states using the blend of 91 octane fuels particular to these states.

Throttle Mapping

Based on user feedback, COBB Tuning has released 2 versions of each calibration with more linear throttle mapping. All maps are available with standard throttle mapping as well as the new v1 and v2 linear throttle mapping. The v2 calibrations offer a more aggressive accelerator pedal feel and may be more suitable for 6MT-equipped cars. The v1 calibrations are less aggressive and may be more suitable for automatic vehicles, however, both calibrations are safe to use on all transmission types.

Map Revisions

Boost levels, fueling and ignition timing have been revised to improve performance and reduce ECU intervention over driver inputs. Torque and load limits have also been altered to allow for significantly increased power levels over stock. The speed limiter has been raised to a maximum value of 198.4mph (ECU limit). The rev-limiter has been raised to 7,200RPM for 91 and 93 octane maps, only.

ACN91 Mapping

ACN91 octane calibrations have been added to further support users in Arizona, California and Nevada. These states use a specific blend of 91 octane that has been shown to perform below standard 91 octane. Users in these states are strongly encouraged to use the ACN91-specific calibrations.

These newest calibrations are available right now from the COBB Tuning BMW Map Database. For more detailed information on maps and revisions, please consult the BMW Stage1 Map Notes or call COBB Tuning at 1-866-922-3059. 

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Check out the latest big build and video from COBB Tuning featuring EVOXForums.com user Hollywood_X and his 550whp AccessPORT Tuned, E85 Powered EVOX! The car features an ERL-built 2.3-liter stroker engine, Cosworth head and cams, Deatschwerks 1300cc injectors, custom dual fuel pump setup, FPBlack turbocharger, huge FMIC and lots of other modifications. Coupled with the AccessPORT and E85, COBB Tuning’s head tuner, Tim Bailey, was able to extract 550whp from this combination! The result is a very fast and torquey EVOX, thanks to the 2.3-liters of displacement. Great things are in store for the EVO X community, stay tuned for more updates to the EVO X AccessPORT and more big builds from COBB Tuning!

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COBB Tuning is happy to announce the final result of the Mustache March contest! After two separate votes that saw some very creative voting tactics, the COBB Tuning staff has picked a winner! COBB Tuning Forums user “Spag” is the proud winner of a COBB Tuning AccessPORT!

With his wild AccessPORT and OBDII dongle ‘stache, the COBB Tuning staff overwhelmingly decided for this most creative and dedicated entry! Congratulations, Spag!

In addition, all contestants will receive a COBB Tuning T-shirt as a thank you for their participation!

COBB Tuning would like to thank everyone who entered and participated in this contest. For further questions, inquires or details please contact us at contests@cobbtuning.com.

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COBB Tuning is pleased to announce the availability of Launch Control and Flat-Foot Shift* for all Subaru turbocharged manual transmission equipped vehicles. Launch Control limits engine RPM to a user-set value when launching to build boost and increase launch consistency. Flat-Foot Shift allows the user to maintain wide-open-throttle during gear changes, keeping partial boost between shifts and improving acceleration post-shift. This release of Launch Control and Flat-Foot Shift addresses isolated issues with the prior version and expands support to additional vehicles.** Please note that using Launch Control and Flat-Foot Shift (LC/FFS) can be abusive to the engine, clutch, transmission, axles and differentials. If you are willing to accept these risks, read on!

This release of Launch Control and Flat-Foot Shift now supports the following applications:

Currently Supported Vehicles
Launch control (LC) and Flat-Foot Shift (FFS):
– 2004-2008 Forester XT (MT only)
– 2005-2010 Legacy GT (MT only)
– 2007-2009 Legacy GT spec. B
– 2006-2011 WRX (MT only)
– 2004-2011 STI

Launch control (LC) only:
– 2002-2005 WRX (MT only)

Easy Implementation and Installation
To enable Launch Control and Flat-Foot Shift on your Subaru, download AccessPORT Manager version 2.0.1.5 or greater to update the AccessPORT firmware to version 1.6.4.0-1645 or greater. Stage1 and Stage2 v3.00 Launch Control enabled maps are included in the firmware. In addition, all of the maps in our Subaru AccessPORT Map Database have been updated to v3.00 and are available for download. Simply select the v3.00 map that suits your power modifications, Reflash the v3.00 map as your ECU base map (not Realtime map) and configure the Launch Control and Flat-Foot Shift RPM settings to your preferences using the AccessPORT by navigating to Tune > Adjustments > Launch Control or Tune > Adjustments > Flat-Foot Shift.

ProTuned Map Conversion
Customers using ProTuned maps have two options for converting their map to enable Launch Control. These maps can be converted to a Launch Control enabled map using our online map conversion utility or your Pro Tuner may be willing to update the map for you. To use the online map conversion utility, click the link, click on the “Choose File” button, select the map on your computer to be converted and click the “Submit” button. Depending on the settings of your web browser, the new LC/FFS enabled map file will either be automatically downloaded or you will be prompted to initiate the download (and choose a download directory). Using AccessPORT Manager, load the new LC/FFS enabled map to your AccessPORT and you are ready to flash this map to your ECU. Note: This utility does not unlock ProTuner maps for use in AccessTUNER Race.

Custom Map Conversion
Customers using AccessTUNER Race maps also have two options for converting custom maps to enable Launch Control. Launch Control can be enabled map using our online map conversion utility or the map can be opened and saved using Subaru AccessTUNER Race version 1.9.1.0-1695 or greater. To get the latest version of AccessTUNER Race, open the software, click on Help > Updates > Check for updates. If your version of AccessTUNER Race does not have the auto-update feature, submit a new AccessTUNER Race Request Form in order to download the latest version of the software.

For further information and detailed instructions on enabling Launch Control and Flat Foot Shifting on your Subaru, please download our Launch Control and Flat-Foot Shift FAQ, call the COBB Tuning tech support line at 1-866-922-3059 or email us at tech@cobbtuning.com.

*Flat Foot Shifting is not available on 2002-2005 Subaru WRX 2.0L vehicles due to vehicle hardware limitations.

** This version of Launch Control and Flat Foot Shift is not compatible with the previous version, which is no longer supported. Note that the cruise control feature for setting RPM has been removed from this versionfor consistency across all platforms.

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COBB Tuning introduces the 3” Stainless Steel Catless Downpipe Kit for 2008+ Nissan GT-R vehicles. These stainless steel units are the same downpipes that helped power our COBB Motorsports Redline Time Attack Modified Class GT-R to a Class Championship in 2010! Designed to bolt up to the stock turbos or stock-location upgraded turbocharger kit, this downpipe kit has been rigorously track-tested and proven reliable at power levels beyond 800whp.

Take your Stage2 GT-R with upgraded Y-Pipes to the next level with the COBB Tuning 3” Catless Downpipe Kit. Consistently improve turbo spool-up by 250-300RPM and open the door to maximum stock turbo power output when coupled with complementary modifications including; injectors, fuel pumps, intakes, boost tubes and intercoolers.

These high-flow, mandrel-bent, 304-stainless downpipes remove the restrictive stock catalytic converters for better flow, faster turbo-spool and improved transient response. This downpipe kit is a direct OEM replacement and will bolt up to the stock exhausts system or aftermarket systems alike.

For more information on the COBB Tuning 3” SS Catless Downpipe Kit for the 08+ Nissan GT-R, please visit our website at www.cobbtuning.com or call toll free at 1-866-922-3059.

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The entries are in and it is time to vote for your favorite “Stache!” The rules are simple: The stache with the most votes wins a brand new AccessPORT! Never has annoying your significant other been so profitable! Check out the entries below and then go to our Mustach March Voting Page to cast your vote. You must sign up to the COBB Tuning Forums to vote! Thank you to all those that entered and may the best ‘stache, or other facial growth, win!

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Photo Courtesy of GotCone.com

It has been a long, cold, snow-filled winter for most of us and that means few opportunities for motorsports events. However, with the coming of spring means the big thaw and once again, petrol heads are filling parking lots full of cones. That’s right, autocross season is upon us! COBB Tuning hot-shoes Rob Irish (BMW and MINI ECU Guru) and Jon Pomrenke (Subaru ECU and Software Engineer) hit the course recently to clear the cobwebs out of their STU class STI along with long time friend and COBB Tuning customer, John Hale.  After nine months away from racing, Rob’s 2006 STI returned to the 2011 Mineral Wells ProSolo with a 1-2 finish! John Hale contested the event in his own car, a 2005 STU-prepared STI, and finished third behind Jon Pomrenke.

Winter is a time for racers to rebuild and refit. However, sometimes quick rebuilds take a bit longer than expected. The STI was torn down nine months ago for a suspension rebuild but the car was not completed until the Thursday before the Houston event! In that time, the turbo-back exhaust was replaced with a COBB Tuning turbo-back exhaust for better power, sound, and ground clearance. The intake was replaced with the stock airbox at a loss of top-end in exchange for cooler air. Suspension was replaced with all new remote reservoir coilovers to properly control the high spring rates.

Just one weekend prior, Jon and Rob contested the first round in the 2011 Houston National ProSolo Tour (2nd and 4th place finishes) in Jon’s S2000, so while they had a little bit of seat-time to get back into the groove, the STI was still in pieces waiting to be reassembled. With that event behind them, the team quickly completed the STI to make it ready for the Mineral Wells event just a week away. The suspension was installed Monday-Tuesday, alignment done Wednesday, tires mounted Thursday with the race on Saturday and Sunday.

With fresh, unscrubbed tires and untested suspension, both Jon and Rob came out strong Saturday morning to end in 1st and 2nd after the first session. More seat time and a faster course allowed the class to find more time in the afternoon session. Jon managed to hold 1st through afternoon runs, but Rob slipped to 3rd. With more rubber on the course and the cold morning temperatures, they headed out for the final session. The 1st place position was lost and regained repeatedly through the weekend, with the top three drivers all holding 1st place during the final runs of the weekend! Jon fought and held 1st until Rob’s last run, which catapulted Rob from 3rd to 1st.

Jon and Rob use the COBB Tuning AccessPORT to tune their ride. Not only this, but the pair use the map switching capabilities of the AccessPORT to quickly change from a pump gas calibration to a race gas map at the event. They drive to the track on as little pump fuel as possible. Then, they take off the fuel return line and drain the tank trackside. Then they fill up with race gas and switch maps for more horsepower! At the end of the day, they drain the race gas and switch back to pump fuel and the pump fuel map!

Jon and Rob will be looking to continue their winning ways this year with both local and national events being contested. Check out Cobb Tuning.com for more information on the parts they use to take their STI to the top of the class!

1st- Rob Irish
left: 43.669s, .544 R/T, 1.820 60′
right: 43.929s, .567 R/T, 1.873 60′
total: 87.598s

2nd- Jon Pomrenke
left: 43.930s, .534 R/T, 1.795 60′
right: 43.763s, 0.530 R/T, 1.814 60′
total: 87.693s (0.095 from 1st)

3rd- John Hale
left: 43.807s, .582 R/T, 1.811 60′
right: 43.877s, .646 R/T, 1.856 60′
total: 87.784s (0.091 from 2nd)

Rob’s Best Run

Jon’s Best Run

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