128 kit.
SE 64mm manifold
SE 64mm throttle body
GMR 8.4 injector
GMR Performance hydraulic lifters
Fueling 521 cam
Stock heads
S&S Grand National 2 into 1 into 2 full system
Probably giving away a few hp with the pipe but great torque and outsranding curve with gobs of torque from the get go..
2020 Road King 107 Dead Stock vs Tuned with Mastertune, Tuning all done in the Torque Control mode used by HD for RDRS.
Not one part changed but dealer what to see what we could do with tuning only.
That torque dip at 2600 RPM is horrendous. A clear example of putting the wrong pipes on the bike.
IMHO your a ways off base with your statements. Look at other dyno charts and you will see most of them start the dyno pulls north of 2100 rpm, now why is that? Typically they are hiding what happens at lower RPM's as the dip as you call it shows up as it does in the chart I posted. For reference let's look at the 131 posted just before it and look at what it makes at 1700 - 2100 RPM.......... sorry but you cannot do it, as the runs starts later in the RPM range. So it's important to compare numbers, not pictures. Now could it of had a better pipe, possibly, but this is what the customer had on his bike and since I was only there to aid one of our dealers this was the results. The bike itself hauls *** and you cannot feel the dip as you call it at all. Another thing is the engine temperature runs are made at and how consistent the bike runs from one run to another and as anyone can see it lays one run right with the others as the engine temperatures rise.
06-12-2021, 06:19 PM
