Porsche Testing in Japan with Mitch McKee of COBB!

 

I am a big proponent of on track testing calibration’s. We want to be sure that right out of the box you guys are getting a calibration that we are 100% with. We did this with the 997.2 Turbo, taking the car to Laguna Seca and winning the Optima Challenge with a car setup by BBI and tuned by Cobb Tuning using the Accessport.

Now for this we wanted to show the Japanese guys what American tuners are capable of! I think we did pretty good

To start off we had 2 cars to test. A 997.1 GT2 and a 997.1 GT3. The GT2 was bone stock even down to the old Michelin’s. The GT3 had some muffler deletes and suspension.

Both were beautiful cars and it really was an honor that the customers let us test them sight unseen. Creft Motorsports is a shop in Yokohama and they were very helpful in getting the cars all setup.

Both cars were faster by a large margin at Fuji Speedway. Fuji speedway may be one of the most beautiful tracks on the planet as far as I am concerned. With Mt. Fuji looming behind the track it makes for beautiful scenery.

Now on to the pics! As soon as I get a little more time I will get the video up as well. ( Be warned I am a much better engineer than photographer!)

-Mitch

Me with Fuji-San checking datalogs after coming in from a quick morning session.

997.1 GT3 AP

This is just because I love these cars so much:

Thanks for looking guys! We have some more content to put up once it is edited!

Nissan GT-R Rolling Launch – Dyno Testing

We’ve been testing some exciting new features for the GT-R platform!  

With roll-racing events becoming more and more popular, our Rolling Launch feature will allow cars to build boost while maintaining a constant speed.  With the release of a button, full power is on tap!

Check out this quick video of our GT-R Experts testing this new feature on our in-house dyno!


 

 

2015 WRX Rev Hang

For 2015, Subaru introduced a completely overhauled WRX!  There are some awesome new changes, like direct injection,  and other changes many aren’t too thrilled about.  Subaru’s new “Rev Hang” logic seems to top the list of complaints.  Luckily though, COBB is hard at work coming up with a solution!

What is Rev Hang?

Typically, when you are in gear and revving high into the RPM range, pressing in the clutch would result in the RPMs quickly falling.  With Rev Hang, the RPM stays constant for a bit and slowly falls.

This isn’t necessarily a bad thing.  However, many car enthusiasts are purists and feel the only inputs the car should be considering, especially when it comes to throttle, come only from the driver.  We tend to agree!

Here’s a quick video of the Rev Hang “Fix” in action:

 

This does look subtle on video but if you own or have driven a 2015 WRX, you know how big a difference this will make!  Check out the latest v111 maps to try out the fix: https://cobb.app.box.com/2015-wrx-v111.  Stay tuned to our Website, Facebook Page, Twitter, Instagram, and Blog for the latest!

Porsche Updates – Brake Boosting and Adjustable Launch Control

Porsche 997 Turbo

The most powerful Porsche tuning software available just got better!

Brake boosting and adjustable launch control are now available for 997.2 Turbo Porsches.  Brake Boosting will allow users to build boost for roll-racing events which are becoming increasingly popular.  Adjustable Launch Control offers the ability to adjust Launch RPM to maximize traction when accelerating from a dead-stop.  These features are available exclusively from COBB using the Accessport and Accesstuner Pro!  No other tuning solution can offer these performance features, ease of use, and tuning support.  Simply launch Porsche Accesstuner or Accessport Manager and run updates!

2015 Subaru STI Development Update – COBB SF Intake Testing

So, you’ve probably seen some pretty cool early results from hardware swaps on the 2015 STI platform.  But, have you seen any actual data besides some basic dyno charts with really high smoothing?  Probably not. :) Lucky for you, we’re here to provide actual quantified data behind the madness.

Many people were initially disappointed that our first release only included Stage1 maps.  This was because we prefer to *thoroughly* test parts to find out what each modification will do so that we can be sure our Staged Package offerings have a definitive gain for your investment.  For example, here is a NASIOC thread showing some of the testing we did to compare power output when a downpipe is added to a 2015 STI: http://forums.nasioc.com/forums/showthread.php?t=2639122

For intakes, we decided that looking at only power wasn’t good enough.  An age-old claim in Subaru world is that the factory airbox is not restrictive with the stock turbo, and we wanted to see it for ourselves.  We put this to the test by measuring turbo inlet vacuum generated on the stock airbox and with a COBB Tuning SF Intake system fitted to the car.  Garrett refers to vacuum in the turbo inlet as “depression”:  “Any restriction (caused by the air filter or restrictive ducting) will result in a “depression,” or pressure loss, upstream of the compressor that needs to be accounted for when determining pressure ratio.” (http://www.turbobygarrett.com/turbobygarrett/pressure_ratio)

By comparing the depression created by the factory intake against an upgraded intake, we can actually “see” if we have removed a restriction or not.  If the depression is the same, well, all we’ve done is added a noise-maker to the car :)

To complete this test, we first gathered boost and depression data on the stock airbox using a stock-hardware 2015 STI (tuning only), first on wastegate boost pressures only, then at ~17.5psi peak via our Stage1 93 OTS map in “S#” mode.  Next, we gathered the same data on the COBB SF Intake, with no calibration changes other than for the different MAF curve required.

What did we find?  Results!  The stock airbox creates depression levels of a bit over 1psi on wastegate boost at redline, and well over 2psi on the Stage1 boost levels!  What does this mean?  Here in Austin, where the elevation is ~800 ft, the barometer was ~14.21psi for the testing day.  With the stock airbox at redline, the turbo was only being fed with approximately 12psi of pressure due to the depression.  For comparison, this would be the same as running the car at 5500 ft of elevation if there were no depression!

Here is the boost and depression (intake pressure) data for wastegate and for 17.5psi, shown in gauge pressure relative to ambient atmosphere:

Boost and Intake Pressure – Wastegate Spring Only

 

Boost and Intake Pressure – 17.5psi Setting

As you can see, thanks to the reduction in depression with the upgraded intake, boost is a bit higher on the wastegate.  At 17.5psi, we can see that spool has improved and high RPM boost is held out better on the same WGDC settings.  In each case, the depression created by the COBB SF Intake system is roughly half of the factory airbox.  What does this mean?  Simply put, we’ve reduced restriction in the turbo’s inlet path, as shown by the reduction in depression.

I also decided to take this data one step further, which is to calculate the turbocharger’s effective pressure ratio for each case.  One caveat is that we’re looking at post-IC pressures, not pre-IC, but because the intercooler has not changed at all between tests, it shouldn’t skew the results too greatly.

Here is the pressure ratio for each scenario (again, baro in Austin was ~14.21psi on testing day), calculated using Garrett’s methodology here: http://www.turbobygarrett.com/turbobygarrett/pressure_ratio

Pressure Ratio Comparison – Wastegate Spring Only

 

Pressure Ratio Comparison – 17.5psi

On wastegate boost pressures, we can see that there isn’t too drastic of a difference — perhaps a tenth of a point at very most.  However, at 17.5psi, we can see the COBB SF Intake really start to separate itself: pressure ratio is decreased by about two full tenths across the board after spool.  What does this mean?  The turbocharger compressor is now operating more efficiently, at least in terms of the demanded pressure output (boost) again the amount of pressure available at the input.

So, at the end of the day, here’s what power looks like between the two.  COBB SF Intake are the solid lines, stock airbox are the dashed lines:

Stage 1 vs Stage 1+SF Intake Dyno Comparison

Long story short?  On the 2015 STI, even in otherwise-stock configuration, the COBB SF Intake system (and others that have the same or better airflow capabilities) help the turbo breathe easier and in turn, make the same boost more efficiently or more boost at the same efficiency when compared to the stock airbox.

Thanks for reading along! Hopefully you found this data interesting and helpful. We plan to keep providing results like this as we dig in further on the 2015 STI and WRX, so stay tuned :)

Cheers,

The COBB Subaru Expert Group

COBB Releases BMW Stage 1+ Front Mount Intercooler and Stage 2 Downpipe with OTS Map Support

COBB is proud to announce the release of our BMW Front Mount Intercooler and N55 Downpipe along with off-the-shelf map support!

COBB BMW 1 & 3 Series N54-N55 FMIC Kit

COBB N54/N55 FMIC – One of the best power modifications for your BMW 1 or 3 Series – Click here for more pictures and details.

COBB BMW N55 Downpipe Kit

COBB BMW N55 Downpipe – Take your N55 powered BMW up to Stage 2! Click here for more pictures and details.

Tune your ECU for these modifications using our off-the-shelf maps!

 

COBB January 2013 Releases – New Nissan GT-R Support and Features

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COBB is excited to announce the full world market support for the latest generation of the 2012 and 2013 Nissan GT-R (2011-2012 World Market). This support will be rolled into our existing Nissan GT-R Accessports, part numbers AP-NIS-005 and AP-NIS-006. Our Accesstuner software has also been updated to allow custom tuning of the 2012 and 2013 Nissan GT-R by both professional tuners and DIY tuners alike. Read on for more details about the work COBB is doing to make sure the Accessport is the most comprehensive tuning solution for GT-R performance enthusiasts.

Off the Shelf Map Improvements

Along with the application support, COBB would also like to announce the most comprehensive set of Off The Shelf COBB GTR calibrations to date with features directly requested by COBB GTR customers.

  • Map support for different fuel types translating to the perfect tune for your region’s fuel type.
  • 100 octane performance maps available for free download from the COBB website.
  • Up to 4 boost levels (13, 15, 17, 18 psi) and valet mode per calibration – easily accessible from cruise control buttons.
  • Popular mechanical configurations supported including stock (Stage 1) and exhaust modifications (Stage 2) in addition to 2.75” and 3.0” diameter COBB SF and BigSF GT-R intake kits.

Supported Vehicles:

  • 2011 ADM GT-R
  • 2011 East Asia GT-R
  • 2011 EDM GT-R
  • 2011 Gulf Spec. GT-R
  • 2011 JDM GT-R
  • 2011 South Africa GT-R
  • 2012 ADM GT-R
  • 2012 East Asia GT-R
  • 2012 EDM GT-R
  • 2012 Gulf Spec. GT-R
  • 2012 South Africa GT-R
  • 2012 USDM GT-R
  • 2013 USDM GT-R

Map Revision (version 404):

OEM Intake/COBB SF Intake (2.75”):

  • Stage1 91 OCT or 95 RON v404
  • Stage1 93 OCT or 97 RON v404
  • Stage1 100 OCT or 102 RON v404
  • Stage1 ACN91 OCT or 95 RON v404
  • Stage2 91 OCT or 95 RON v404
  • Stage2 93 OCT or 97 RON v404
  • Stage2 100 OCT or 102 RON v404
  • Stage2 ACN91 OCT or 95 RON v404

COBB BigSF (3.0”):

  • Stage1+BigSF 91 OCT or 95 RON v404
  • Stage1+BigSF 93 OCT or 97 RON v404
  • Stage1+BigSF 100 OCT or 102 RON v404
  • Stage1+BigSF ACN91 OCT or 95 RON v404
  • Stage2+BigSF 91 OCT or 95 RON v404
  • Stage2+BigSF 93 OCT or 97 RON v404
  • Stage2+BigSF 100 OCT or 102 RON v404
  • Stage2+BigSF ACN91 OCT or 95 RON v404

New Features!

The Nissan GT-R Performance mapping for v404 includes:

  • Real -Time map switching with the cruise control buttons.
  • This Accessport firmware enables users to switch between real-time maps on-the-fly using cruise control controls. The v4.04 calibrations contain 4 to 5 active map slots targeting 15, 16, 17 and 10 psi (valet). Some high octane calibrations contain map slots targeting 18+ psi. See the map long description for specific details. Peak boost levels will vary with altitude and exhaust modifications.
  • Heads up display based engine knock warning.
  • Knock monitoring with the Heads-Up-Display is not available for MY11+ GT-Rs during this initial release. Knock activity can be observed by monitoring the “High Det. Flag” and “Dynamic Timing Advance” monitors on the Accessport

Please see individual map notes for additional information and instructions for use. And as always, if you have any questions, just contact COBB Support: support@cobbtuning.com

COBB AccessPORT for the 2013 Ford Focus ST

COBB is proud to announce the AccessPORT for the 2013 Ford Focus ST. The AccessPORT is the industry leading OEM ECU flashing, managing and monitoring assistant. Unlock power hidden within the ECU by replacing conservative factory settings with more aggressive calibrations. The result is impressive gains in torque and horsepower while maintaining a high degree of safety. The AccessPORT comes with pre-installed maps that are optimized for common performance modifications.

The AccessPORT currently comes pre-installed with Stage 1 maps for a 7% increase in peak horsepower and a 20% increase in peak torque. The area under the curve is also massively increased with maximum power gains of 12% in HP and 25% in torque when using 93 octane fuel. Mapping is also available for 91 and 87 octane fuels to accommodate your local pump. Stay tuned for more map and feature updates as Ford Focus ST research and development continues! Click the link below for more information and to get yours today!

2013 Ford Focus ST AccessPORT: AP-FOR-001

COBB AccessPORT for the 2011 BMW 135, 335i and 335xi

COBB is extremely happy to announce the release of the AccessPORT for the N55 powered 2011 BMW 135, 335i and 335xi. We have been cranking extremely hard to get this out – with our best engineers working on making this a terrific product.

This is a Beta release – which means that although the support and tuning are 100% complete and, frankly, bad ass – we don’t support every single ROM on the road right now. As most of you know (but your friends might not), a ROM is an individual calibration file that makes small tweaks to the Engine Control Unit from the factory. Usually these changes are small and completely imperceptible to the consumer – however, we always want to support the latest the OEM has to offer so that all of the safety and reliability that BMW engineers into its vehicles stay there. It takes more work to do it this way – but we think it’s best for you and your car.

As such, during this Beta release of the AccessPORT, it is expected that several customers will need to send in the ROM data collected by the AccessPORT before the installation can be completed. Typically, new ROM support can be added in only 3-5 business days and is as simple as emailing your ROM information, and then completing an AccessPORT update on your home computer. As we collect more ROMs, the chance of having an unsupported ECU software revision goes down significantly and the sooner you can enjoy the added power!

The AP-BMW-002 will come pre-loaded with Stage 1 Sport and Stage 1 Aggressive power maps, as well as a Stage 0 map and Valet mode for reduced power when needed. Using the Aggressive map, you can expect an 11% increase in peak HP and a 25% increase in peak torque. The area under the curved is also massively increased with maximum power gains near 18% in HP and 26% in torque. Stay tuned for more maps (Stage 1+COBB FMIC) and updates coming soon as N55 development continues! Click the link below for more information and to get yours now!

BMW N55 AccessPORT: AP-BMW-002

2013 Subaru WRX Stage 2 Firmware and Map Updates

COBB has just released new map and firmware updates for all AP-SUB-003 AccessPORTs that fixes a map issue for the 2013 WRX, STI, and Forester XT that can cause the vehicle to show a P0605 ROM Error with Stage 2 mapping. To prevent this from happening or to resolve a current issue, first you will just need to uninstall the AccessPORT from the vehicle using the Uninstall option from the main menu. Then, update the AccessPORT to the latest firmware (1.6.7.0-5151 or greater) using AP Manager. Finally, do a full Reflash map change with the newest maps on the AccessPORT or downloaded from the Maps section of our website. You can verify your current firmware by going to AccessPORT, then About and you can verify your current map version by going to Tune, then Show current Map, then Reflash Map.

For the 2013 STI, use Stage 2 map version v321 or greater. For the 2013 WRX, use Stage 2 stock intake map version v301 or greater or Stage 2+SF/AEM map version v312 or greater. For the 2013 Forester XT, use Stage 2 map version v311 or greater.

If you are unfamiliar with updating the firmware on your AccessPORT, please follow this link for Step-By-Step Firmware Update Instructions. Please feel free to call us at 866-922-3059 or email support@cobbtuning.com if you have any questions.