COBB Tuning Blog

This feature is still in beta, but it’s coming along very nicely.  Using a complex algorithm originally derived from a SAE paper we referenced, the AccessPORT can datalog key parameters from your ECU as you drive to determine peak HP and Torque (at the wheels).  This takes into account everything from different gear ratios, weights, and aerodynamic profiles of the various vehicles we support.  Initially it’ll be available for Subaru models, with others coming along shortly.

Below are some example graphs from back to back runs made on our 2008 STi demo car.  In the beginning, the AccessPORT will show you only the peak values but in the near future we hope to provide a tool you can use to download the full dyno graph off the AccessPORT and onto your PC for viewing, sharing, bragging, etc.  Ultimately, it turns out some pretty accurate and consistent results which is very impressive!

Expect this to be available as a free update to download from our website in the near future.

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We’ve had a few requests for us to post data regarding some testing we’ve performed on our SF Intake Air Box for the Subaru WRX/STI. I think the results state pretty clearly how much an air box helps with keeping Intake Air Temps in check.

Highway Driving:
COBB SF Intake no box: Max 124 degrees F Avg. 91.6 degrees F
COBB SF Intake w/ box: Max 108 degrees F Avg. 74.9 degrees F
Difference of: Max ~16 degrees F Avg. ~16.7 degees F

City Driving:
COBB SF Intake no box: Max 149 degrees F, Avg. 117.4 degrees F
COBB SF Intake w/ box: Max 111 degrees F, Avg. 87.5 degrees F
Difference of: Max ~38 degrees F, Avg. ~29.9 degrees F

Idle (~5 mins):
COBB SF Intake no box: Max 149 degrees F, Avg. 133.5 degrees F
COBB SF Intake w/ box: Max 113 degrees F, Avg. 99.2 degrees F
Difference of: Max ~36 degrees F, Avg. ~34.3 degrees F

All measurements were taken from the factory IAT sensor located in the MAF sensor. This is exactly what your ECU uses to determine how much timing to pull, boost compensations to make, etc. Not to mention the basic fact that cooler air = more, reliable power.

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Progress continues to be made on our EVO X line of products.  Below is a picture of our complete SF Intake kit with how our bracket will look, the MAF housing w/ integrated velocity stack, and the high flow silicone turbo inlet tube.  Note that the bracket and MAF housing are rapid prototypes, the final products will be black.

Also in testing is our new Sway Bar kit for the EVO X.  Pictured below is one of the front bars we are testing.  Like our other sway bars, ours will be a lightweight tubular design.

These parts, and our new EVO X demo car, will be on display at the Redline Time Attack event March 29-30th at Buttonwillow.  We’ll be providing ride alongs in our EVO X, as well as our 2008 STi demo car.  Please stop by if you can!

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Recently we caught wind of a 2008 Stage 2 STi that ran 12.48 in the 1/4 mile using a AMR tuned AccessPORT.  That makes it the first ‘08 STi into the 12s, to our knowledge.  Stock turbo and all… Nice work AMR guys!  The new ‘08 STi is really starting to show it’s potential!

Click here for AMR’s posting on IWSTI.

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So I’m a little behind on blog posts, sorry! We recently released our suspension upgrades for the 2008 Subaru Impreza WRX. To demonstrate how our solutions perform, we invited local driving phenom (and celebrity – Setup on SpeedTV) Matt Guiver to take our 2008 WRX out on track and give us feedback on both the stock WRX and each component and combination of our suspension package. Below is the video of his impressions.

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We just finished up the first article of our turbo inlet for the new EVO X.  This is to replace the factory piece between the factory MAF/Airbox and the turbocharger.  The goal is to improve air flow into the turbocharger and improve efficiency.  Basically free HP without pushing the engine or turbocharger harder in order to gain it.  Our design utilizes a steel coil reinforced multi-ply silicone tubing that an exact bolt on replacement for the factory piece.

Expect these to be available for purchase in the next 4-6 weeks.

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Our engineering staff has been quite busy developing product for the new R35 GT-R.  Josh and Eric have already started work on the exhaust system, and today Billy and Eric put some time in on our SF Intake for the GT-R.  Below are a few pictures of a mock up.
Our R35 SF Intake will feature our composite MAF housings with integrated velocity stack and air flow straighteners.  Air is filtered through high flow, serviceable, blue cotton filters.  As with all modern intake systems, a lot of care and effort must go into keeping the air flow smooth throughout the entire system.  Any failure to do so will lead to stumbles, hesitations, or even a loss in power.  OEMs aren’t slacking when it comes to factory air boxes anymore, and particularly on a car like the GT-R, so you really have to do your homework to make something work well.

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