Initial Details into How The Boost Based Tuning Works with AccessTUNER

[Lex]

Originally Posted by Christian. I debated that, but I wanted to explain things in an easy to understand manner so I thought stating boost before WGDC was best. It would not matter if WGDC or Boost was first...this system is pretty damn fast with boost control and it operates in a closed-loop manner with MAP delta feedback. Christian.

If you've played around with this, how much do initial conditions matter? In other words if I start with 100% in the WGDC table, how much does the boost overshoot for example?

Also, say there is a MAP sensor failure, does the ECU revert to using the WGDC table only?

[djuosnteisn]

Originally Posted by bmorrisj how does this boost based switch affect ignition timing? since the ecu doesn't use full set timing if not necessary with achieved load. (or is that even correct?)

With constant boost, you'll have varying load. For instance 15psi in 100 degree weather would result in much lower load (air flow) than in 30 degree weather (and 100 degree weather would be quite a bit slower). The ign advance will be calculated as normally for that given rpm and load point.