hot-J

I am about to dyno the car as soon as my clutch get here, and have heard varying optimal AFR#'s...... So lets hear from those in the know.....

ibkevin

RKD in OKC

Depends on the weather condition and loading.

It should not go higher than 12.3 or below 11.

RolexNJ

If someone would post a dyno sheet with an optimal A/F ratio, that would be the best thing to do. This way Hot-J could see graphically what he should be shooting for. Anyone? Bueller, Bueller...

fast951

To be 100% exact there are few factors involved (turbo efficiency, boost level, spoolup characteristics, fuel octane, outside temps, ..)
In general, the 951 likes to be in the 11.8:1AFR (under load). A bit richer at times (11.5:1).
Under load anything leaner than 12.5:1 is risky (again, under load).

You will notice that AFR fluctuates a bit, as long as it is in a acceptable range.