Rob,
Yes I have.. actually I did something this weekend that went against all that I thought tuning wise and the mph paid off.
This may or may not help you, i'll see what I end up with solution wise.
My car typically I shot for higher EGT readings like mid 1600's and the car ET'd great but suffered on the top end pull. After having it on the Dyno last Saturday, I found adding fuel it picked up HP and dropped AFR.
So on Saturday when I ran the car a little richer, it was picking up an average of 26-27 MPH vs the 22-23 I typically got. Here are some of the examples,
96.53-123.86
97.35-122.72
92.77-118.41
90.88-116.11
87.10-116.01
Only problem is it dropped of ET running a richer bottom end.. and the egt's dropped to high 1400's low 1500's with a greater MPH pull.
When I get this puzzled sorted.. it will make a pretty fast combo. And the converter was unlocked on these runs shifting into OD.
The 28 inch tire may be one part of the ticket.. for now..some more data logging.
123 was fun
