Here’s Casey Mulkins’ PCIII midrange tuning. These numbers have seemed to eliminate the part throttle surging he’s had riding his sled with stock pipe and the 154hp WOT map.
He tried the big numbers I punched in intuitively, and they were way too fat. He gradually brought those numbers down and here’s where he improved the drivability of his sled. His High RPM map is still the way we programmed it, with negative numbers.
5000 0 0 2 2 2 2 2 2 0
5250 0 0 5 5 5 5 5 5 0
5500 0 0 5 7 7 7 7 7 0
5750 0 0 5 9 9 9 9 9 0
6000 0 0 5 5 7 7 7 5 0
6250 0 0 5 4 4 4 4 4 0
6500 0 0 4 4 3 3 4 4 0
6750 0 0 3 3 3 3 3 4 0
Next Dragon 800 on the dyno will get this map installed, and we’ll see what it does for midrange A/F ratio and BSFC. We’re planning to create new maps for the production DynoPort and Bikeman single pipes when we get them.
This midrange D8 PCIII map came from Chad Okeson, of Okeson Off trail Sales in Detroit Lakes MN, who tweaked one of his customers’ PCIII to improve Casey’s first map even further. As you can see he has added fuel at lower RPM than Casey’s first midrange map. If you’re using Casey’s midrange numbers on your PCIII and still have light hesitation or surginess at the lower RPM try punching these numbers into your PCIII.
1/2/09 Here’s another map with more fuel added at lower revs. This one is from Chad okeson of Okenson’s Off Trail Sales in Detroit Lakes MN. Try this if you still feel lower RPM leanness of hesitation. Thanks Casey and Chad.
2 5 10 20 40 60 80 100
0 0 0 0 0 0 0 0 500
0 0 0 0 0 0 0 0 750
0 0 0 0 0 0 0 0 1000
0 0 0 0 0 0 0 0 etc
0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0
3 7 5 5 5 5 5 0 5000
3 6 9 9 9 9 9 0 5250
0 5 9 9 9 9 9 0 5500
0 5 9 9 9 9 9 0 etc
0 5 5 7 7 7 5 0
0 5 4 4 4 4 4 0
0 4 4 3 3 3 4 0
0 4 4 3 3 3 4 0