02/17/2023
2021 RoadGlide that we performed some minor upgrades on, just before Sturgis 2021. Came in desperately needing a proper tune. Was a brand new bike with a dealer installed stage 4 131”. These kits are the catfish of engine kits. Mid 120’s for hp and mid 130’s for tq. Same results we get out of the stock engines after just a cam swap, pipe, and tune.
With much left to desire out of the SE stage 4 131, the customer approved us to see what we could do with (most of) what was there. Basically make chicken soup out of chicken s… poo. Chicken poo. Main stipulation is that the drivability needed to be smooth for long hauls and daily riding. Stuck with the same throttle body and intake. Made some slight changes to the heads, different cam, and proper lifters. The stock clutch is a joke past 100hp, so we upgraded the primary with our RS High Output Primary Package, featuring the Barnett Scorpion clutch. Swapped out the crooked boat anchor of a swingarm for a work of art from Brock’s Performance. After breaking in the new configuration on the dyno, she laid down a healthy 151hp and 162tq. Sounds mean and the power hits harder than Kimbo Slice.
He’s been beating the snot out of it, like it’s a rental that you actually bought the insurance on. Now with 4000 miles of hard abuse, it’s back for inspection and updates. Still a beast but we want to make sure it stays that way. Just like the clutch, the crank is a joke at these power levels. It’s not a matter of if it will fail, it’s a matter of when. Really curious how far the crank has shifted. Doubt it will be a new high score since it still runs so smooth. After inspection we’ll offer this package as our big torque upgrade to the SE stage 4 131. The big hp version is pretty close for those that love their RPM’s. Low 160s for hp and low 150’s for tq.
