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Old 01-24-2005, 02:10 PM   #1
Scooby Newbie
Member#: 22211
Join Date: Jul 2002
Default Hydra Boost adjust. questions

On element tuning it says that when boost is not reach it goes to
PWM map4 load zone, Going from high load zone (100%) if boost is off target.
Each load zone is set by cycle duty on the boost controll.
My question is why would you not do a linear cycle duty proportional to load zone. 100 load = 100% cycle duty... 90 load = 90% cycle duty.. and so on.
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Old 01-24-2005, 04:15 PM   #2
Scooby Specialist
Member#: 56468
Join Date: Mar 2004
Chapter/Region: NWIC
Location: Seattle, WA
04 Improved STI
Dirty White


Because boost is not "on" in every load zone (low load = no boost) and up to the wastegate cracking open their is no reason to control boost.

Do you want to adjust something, or are you just trying to understand the logic of boost control?
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