has anyone checked their backpressure? a company here in sweden tune the cars by checking the backpressure,
first they make a really safe ignition map, then they turn the boost up until the backpressure go by the boost and then they stop and start tuning the ignition.
i think this sounds like a good ide but a little more backpressure than boost cant hurt so much?
whats the most anyone have picked up on a garrett t04e t3 with a stage 3 wheel?