things to do before dyno day

Jordo!

I personally prefer Redline, based on the UOA's I was getting on my previous Z, where I was the original owner and responsible for break-in vs. "German" Castrol, but I don't recall any clear evidence of Mobil 1 being especially bad based on other folks' UOA's.

Are you going on something from the Oil Nerd's thread, BITOG or your own UOA's?

A couple of suggestions:

1. Mustangs can "break hearts" or "lift spirits" -- it all depends how they are calibrated. Don't get too wrapped up the absolute values -- look to see what you put down BEFORE tuning and then AFTER tuning.

I also advise you allow for three runs before AND after (i.e., 6 runs minimum in total) to give the ECU time to adjust to changes made to the target AFR map. Try to take all runs with oil temps between 180* F and 200* F. If it gets over 220* F (and it might), let it cool down before the next pull.

2. While you are there, ask for adjustment to the throttle maps to improve throttle response, turning the radiator fans on full bast a bit earlier (there's a few threads on each of these items) and if you have a 7AT, ask the tuner to firm up the shifts by adjusting the torque map.

Good luck!

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