I've been running a TFI for several years now on my '03 RKC 88" with the Stage 1 download. My bike ran very well with the TFI dialed in as follows:
G - 1:30, Y - 3:00, Red - 3:00 and RPM - 4:30. My MPG at these settings averaged 37 city/42 Hwy depending on my wrist.
I recently did the cam conversion, installing the 21N grind. I left the TFI at the previous settings and went out the following day and did a 185 mile loop running anywhere for 55 - 90 mph on two lane and super slab. Bike ran flawlessly with plenty of pull when I wanted it, averaging over 45 mpg.
Then I decided to tweak the TFI to something a tad richer than what I was running, but the TFI instructions didn't have my configuration. I decided to use the Stage 2 motor - 95" with cams and exhaust no download as a base, but slightly modified which calls for the settings of G - 3:00, Y - 8:00, Red - 6:00 and RPM - 4:00. I instead used G - 3:00, Y - 6:00, Red - 6:00 and RPM - 4:30, and while I'm still on my first tank, my seat dyno says it's slightly better in the power than before TFI adjustments, and mpg is noticably lower based on typical 1/2 tank emperical data. I'll run another tank this weekend and make a judgement then, but rolling back half of what I dialed in is strongly being considered. :yes
Note: Bike had 35k on the clock and running Amsoil since around 10K. Bike is a daily rider for the last 3 years and gets ridden hard. Cams, lifters, tensioners, etc. looked
(EDIT) near perfect. Very slight wear on both tensioners, which in all honesty was the reason for the cam swap. I read too many horror stories on these forums and was terrified of failure. :reyes
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