Not for Nuthin' But Close!

[Glenn Briglio]

Originally Posted by Billy Nees

Yes open loop.

Billy can you set the fuel/O2 and timing tables to be able to run in closed loop?

[Doug Hoven]

Originally Posted by Glenn Briglio

Billy can you set the fuel/O2 and timing tables to be able to run in closed loop?

I would love to try it, but the issue is that there is no way to change what the desired O2 reading is. When it was in closed loop, it was commanding as rich as 11.8:1 by the end of the track, so it was decided that giving the tuner ultimate control was better than letting the ecu do its thing.

[JakeB23]

So, if I set up to run Open loop, does it still adjust timing based on IAC and ECT but not oxygen?

[Doug Hoven]

Originally Posted by JakeB23

So, if I set up to run Open loop, does it still adjust timing based on IAC and ECT but not oxygen?

This car I was able to tune around any timing adjustments the computer tried to make. I set up the base spark table to a point where as soon as you give it full throttle, it would be at 29 degrees. It also has a "minimum spark vs. rpm" table I was able to play with, and for the added "lockout" effect, I (riskily) disabled the knock retard.

[JakeB23]

Awesome, thanks for the advice. One more question - Did you make any transmission shift adjustments that really picked up the car? or what about the torque management? IE: I messed with the torque management, but it seemed to slide into gear, so I went back to factory settings..

[Doug Hoven]

Originally Posted by JakeB23

Awesome, thanks for the advice. One more question - Did you make any transmission shift adjustments that really picked up the car? or what about the torque management? IE: I messed with the torque management, but it seemed to slide into gear, so I went back to factory settings..

This car had the same problem after getting rid of the torque management, so I added about 5psi at a time to the shift pressure table until it felt good.