Here is the reference for warranty-compliant enthusiasts:
2023 Road King Special
131 Stage IV Kit w/ SE Pro High Volume Oil Pump
Arlen Ness 15-spoke inverted series air cleaner
TAB performance BAM slip-on mufflers
SE Pro Street Tuner
Currently running an HD EPA compliant 131 in a ‘21 Limited. There seems like a lot of options for cam upgrade. Of course FM suggest the Woods 77X and most every company has a suggestion.
I decided to go with APE Cycle Rama, 483, 512, or 515. After a few emails with Ben from APE, I ordered the 515 from FM. It will probably be January before I have it installed, but looking forward to the upgrade. I will post a list of other upgraded components once I get a little further into the change.
Currently running an HD EPA compliant 131 in a ‘21 Limited. There seems like a lot of options for cam upgrade. Of course FM suggest the Woods 77X and most every company has a suggestion.
I decided to go with APE Cycle Rama, 483, 512, or 515. After a few emails with Ben from APE, I ordered the 515 from FM. It will probably be January before I have it installed, but looking forward to the upgrade. I will post a list of other upgraded components once I get a little further into the change.
I had a reputable builder (the Miller tech on YouTube from Australia that uses mostly CR cams) tell me that the 515 was designed for higher compression and to go with the 512 with the SE Stage 4 EPA build....
Here is the reference for warranty-compliant enthusiasts:
2023 Road King Special
131 Stage IV Kit w/ SE Pro High Volume Oil Pump
Arlen Ness 15-spoke inverted series air cleaner
TAB performance BAM slip-on mufflers
SE Pro Street Tuner
124HP @ 5.6K RPM
138TQ @ 4.0K RPM
Did the dyno guy happen to give you the AFR chart for the run?
I had a reputable builder (the Miller tech on YouTube from Australia that uses mostly CR cams) tell me that the 515 was designed for higher compression and to go with the 512 with the SE Stage 4 EPA build....
I’ve seen a few videos on Master Tech Miller as well as Those Dyno Guys. TDGs likes the 483 and MTM likes the 512. I don’t think you can go wrong with any of the 3 cams. Cycle Rama actually suggested the 483, but again APE said 515.
Could be wrong, but I think the 515 is a little newer and is not a drop in cam for stock bikes. I’ll post more updates as things progress.
NOTE; Matt @ThoseDynoGuys, actually tuned my ‘12 when I had an issue in Sturgis a few years ago. It was a difficult decision to go against Matt’s recommendation since he did such a great job on my prior build, but we will see.
For those interested we installed an assortment of camshafts in the Screamin Eagle SE 135 crate engine. There is a full article & dyno charts on the FM University website here>> https://university.fuelmotousa.com/article/2045/
11-20-2023, 01:25 PM
