Porsche 997.1 GT3 - GT3RS Map Notes

Owned by Matt Matteson
Last updated: May 23, 2022 by Brandyn Mowat
3 min read

Supported Vehicles:

Porsche 997.1 GT3 / GT3 RS

  • 2007-2008 Porsche 911 (997.1) GT3
  • 2007-2008 Porsche 911 (997.1) GT3 RS





Map Revision:

Porsche 997.1 GT3 / GT3 RS
  • Stage0 v102
  • Stage1 v102
  • Valet Mode v102





Required Accessport Firmware:

Map Availability:






Fuel Requirements:

Each map lists the minimum required octane. A higher octane fuel can be used safely on a map designed for lower octane. DO NOT use maps designed for higher octane with lower octane fuels. Top Tier gasoline should be used where available.

  • Maps designated with "93" are for use with 93 and 94 octane/98 RON fuel or better.
  • Maps designated with "91" are for use with 91 and 92 octane/95 RON fuel or better.
  • Maps designated with "ACN91" are for use with 91 octane fuel found in Arizona, California, and Nevada or better.


These maps are designed for E10 fuel (fuel with 10% ethanol content). For those who only have access to E0 fuel (fuel with 0% ethanol) it is recommended to use the "91" and "ACN91" octane versions of the maps and datalog the car to ensure your fuel is performing to the necessary level. This is especially important for those using Canadian 94 octane E0 fuel. 






Stage1


Porsche 997.1 GT3 / GT3 RS Peak Gains
Stock Baseline: 
ACN91 Stage1 +6% HP, +4% TQ
91 Octane Stage1+6% HP, +6% TQ
93 Octane Stage1+7% HP, +6% TQ






Stage1

  • Intake: Stock Intake, optional aftermarket air filter
  • Exhaust: Stock Exhaust System


Peak Gains are measured as the absolute maximum value between the highest points of two plots.
Max. Gains are measured as the average maximum value between the highest and lowest point of two plots. Thin line is measured horsepower and bold line is measured torque.






Non Performance Maps:

Valet Mode

  • Rev limiter set to 4000 RPM.

Stage 0

  • Stock calibration. No changes made at all.

    • NOTE: Stock and OTS maps are not compatible with iPE Exhaust systems.





Closing Warnings and Precautions: 

  • Use of inappropriate calibration/modification combinations will promote engine damage.
  • Seek the help of a professional COBB Protuner should your Porsche fall outside of OTS map requirements.
  • Top Tier gasoline should be used where available. Use of lower quality fuels can result in catastrophic engine damage.
  • For track events, we recommend adding at least 2 gallons of 100 octane fuel to battle high track temperatures.





Map Revisions:

Map Version:Notes:
v102Map Description Fixes
v101Background improvements
v100

Original Calibration. Adjustments made to Ignition Timing, Throttle Limits, Air Fuel Ratios, Rev Limit, Left Foot Braking and torque limits.


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