I have found that when using higher octane fuel (leaded at least), if I keep the AFC settings the same. The a/f ratio goes richer. This could be due to the lead.

But anyhow. As far as the tune goes. If it does in fact go richer. That would be okay, at least it will still be safe. I really wouldnt want to take more fuel out, than is already taken out now.

We are at -9% up top now on top of the custom dynoflash, to get to 12.0:1 on the 100 octane.

Brian

 

Cool, I laid down 346hp/343tq on 93 pump gas on a Mustang dyno, same that tke 413 made his power on, but our numbers were dismissed by tuners as "inflated" and "altered". Congrats on the numbers man

 

Turbodawg and I had alot of fun on the dyno wednesday night. We started out in 4th gear like all the other times I went to see a base line, 288whp.Then we started like we should in 4th gear pulls. Since my last visit to the dyno, it has been recalibrated. Then we started at 306whp/289 wtrq. We were optinistic. This was on 22psi falling to 20. We adjusted the SAFC to fine tune the A/F ratio and went from their Like he said hour and half later we happy with the A/F, power, and torque.