Boost 20psi?

[Romogst]

Currently I have my manual boost controller set up at 17psi, running an evoIII turbo with the supporting mods, my question is Can I raise the boost to about 20 psi keeping my SFAC setting the same?? Do I need to ajust my SFAC as I increase my boost?

 

[1990talon]

do you have a logger?

 

[FORMONTOYA]

Correct...........a logger will give you the information you're looking for.

Although the settings should be pretty close, don't increase anything without a logger to verify things are working correctly, your motor will thank you with longer service.

 

[Romogst]

i have no logger, just gauges and the SFAC

 

[FORMONTOYA]

How did you arrive at the tune you have now?

Really, at this stage of your game a logger would be your best friend.

 

[seefour]

If you have to ask that question you probably shouldn't be touching the boost controller. Do some research about tuning for higher boost levels, fuel trims...

The first thing you need is a logger to measure knock sum and timing. Then you can start thinking about upping the boost.

Good luck.