Quote:
Originally Posted by shiv@vishnu
The overboost feature, when triggered, will induce an extra 1psi of boost for 1.5 seconds. If the regular boost target is 15 (which it is between 5250-6000rpm), it is possible to see 16psi. But it's pretty rare for overboost to be triggered at that RPM due to the underlying logic. But if you routinely see 16psi for sustained periods of time (over 0.5 sec) then you will need to drop the user TQ values a few 5 in that rpm range.
shiv
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Thanks for the explanation and the "autoboost" sounds technically cool but to echo Eugen's comment earlier in this thread, I'd rather not have that feature enabled especially when I'd already getting my own form of overboost spikes. Perhaps when this trigger is combined with the intake pressure surge a few of us are seeing it explains the 18.1 psi number I have experienced a couple of times?
I'm not looking for the absolute max power, but rather power that is consistent and useable. As a feature request it would be great to be able to override the overboost trigger when uploading the map. At the very least this would make it easier to validate that the system is working as expected. Then depending on mood, quality of gas we are free to push the envelope a little with the tune -- the user torque settings are a great start in that respect.
Thanks for listening.