Quote Originally Posted by TwinV6GTP View Post
In your case with the 3.5 and your mods you should never see any knock. What's your A/F ratio I don't think you answered this yet ?
A/F values (on my Wideband tuned for pump gas) are 14.7 @ cruise (target 9.85 on E85).

@ 28% throttle, it adds 1 to the A/F values, which yields between 12.5 and 13 on my WB.

after 45% throttle, full PE targets kick in which are set to 8/1. That yields around 10.8 - 11.0 AFR values on my wideband. I originally targeted 7.3 AFR values as base PE, but was seeing my wideband values of 10.0 - 10.3 during WOT, which seems too rich considering that is sub 7 AFRs on E85.

Let me know if all that made sense!