I don't think you were mistaken, Frank's Pedal E value ranges from ~32-86, so I think that's where the 86 came from. but his D value (which is what I have been using) ranges ~16-70. So both have a range of 54 on his car.I made a mistake when i said 86. Frank's range in the data given is 32.15 to 71.76 normalize it to start at zero and it's 0-39.61. Your range is 15.69 to 76.08 which means your range normalizes to 0-60.39 which is way wider than frank's. but interestingly Frank's throttle blade never actually goes to 86 so i suspect there's something actually limiting physical travel of the accelerator pedal in his car.
My Pedal D range is ~16-76, or a range of 60. Not a ton more, but it is some.
We both have a blade range of ~16-81, range of 65.