Quote:
Originally Posted by tuikku
Smaller turbo has two jobs, produce back pressure enough for recycling and wake up the bigger one, after that ecu turns it aside.
In my car, I have forced the change earlier. I am trying to have as much low end torq as possible.
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Sometimes I saw dips in the boost curve at the transition, when the car was stock. Remapping helps. I have always thought the transition timing was not right. Interesting to hear you have made an adjustment to bring the LP turbo on sooner.