If you have been following Project Porsche 987 Cayman S, you have been seeing the engine power parts we have installed as well as the mods to improve cooling and oiling. Now it was time to tune the ECU and PDK transmission controller to match the mods that we had done. For our tuning we went to Mitch Mckee of M-Engineering. Mitch has tuned our GT3RS with stellar results and we were confident that our Cayman would be in good hands.
For a tuning interface we used Cobbs Access Port. The Access Port enabled Mitch to access the maps for engine control and the transmission controller.
For the dyno, we used World Motorsports wind tunnel dyno. For tuning sophisticated newer model cars we use Worlds facilities because the dyno spins all 4 wheels and the wind tunnel has superior thermal management during tuning. A lot of late model cars freak out unless all 4 wheels are spun. The Wind Tunnel dyno uses the pictured huge fan to simulate road airflow. Capable of wind speeds of up to 140 mph, the fan is linked to the dyno and matches the dyno’s road speed. This requires over 300 hp. It’s one hell of an electric motor spinning that fan. The World Motorsports dyno also has several other ducted fans to make for rapid air exchange in the dyno cell. These smaller air exchange fans blow about as much air as a normal dyno fan and they cover the entire back wall!
Mitch is hard at work tuning the cars fuel and ignition tables. Our car was running on the lean side which is to be expected since we really uncorked the engine. With adding a lot more fuel, the direct injection engine can now tolerate more ignition timing.
Wow, our Cayman now makes the distinct Porsche race car shriek. It sounds glorious but it is kinda ear splitting in the confines of the dyno room! Our engine now makes a lot more top end power and the revs are increased to 7500 RPM.