Very exciting to let you guys know, this morning the first trial on a R35 using just an accessPORT successfully saw real controlled boost via the ecu, RPM based boost control. No boost controller in sight.
For the last month or so, to help take the work load away from the Cobb GT-R team (Trey, JoeGR, Turtle), GTC main tech man Thistle had been busy with the raw GT-R rom files. The wastegate duty table axis now uses RPM instead of airlow, which was the reason behind the boost spikes. This now allows proper independent control of overboost situations by rpm. Now wastegate duty follows the map by RPM.
More testing to be done, but an otherwise standard car with significant traction problems in the dry, although this was on the initial map which gave 20 PSI midrange and 17 PSI at 6000 RPM and will be detuned in the midrange as the car is otherwise stock. The important point is that now we can detune the midrange and keep the high RPM boost up
Next up Knock in datalogs
If you thought the AP was good, its about to go to next level thanks to the tireless efforts of the team who never stop striving to improve.
All being well GTC will shortly be offering custom tunes with the new features included. I have told a number of people to hold off buying custom tunes from us until this was implented and we were happy, and also to save boost controller £££
Items changed and optimized in the custom tuning:
Boost Wastegate duty cycle is optimized to the specific vehicle, and smoothed to eliminate drivability issues, while maintaining a safe boost level
Intake and Exhaust cam timing are optimized for best spool-up, drivability and top-end power
Ignition timing is optimized and smoothed
Fueling is adjusted to meet the engine's requirements
