Foot lbs or Pound ft = torque?
SIGH...Ummm without being able to click on 5252, looking at that graph HP at 5252 looks about 112 and torque at 5252 is the same. This is exactly what every single post I made states will happen. Horsepower and torque cross at 5252 ALWAYS. Visually when scaled differently they do not because you are graphing two different scales on one piece of paper.
I could graph 1000TQ on one side and 50 HP on the other and the lines would be so far away it would be pathetic, but the values DID cross at 5252.
I know Max gets it but everyone worried about lines might as well have a crayon in their hand because they don't understand what values mean. Lines crossing on a differently scaled graph mean NOTHING regarding where they cross.
Seasoned HDF Member
Joined: Dec 2005
Posts: 19,939
Likes: 8,036
From: poway
SIGH...Ummm without being able to click on 5252, looking at that graph HP at 5252 looks about 112 and torque at 5252 is the same. This is exactly what every single post I made states will happen. Horsepower and torque cross at 5252 ALWAYS. Visually when scaled differently they do not because you are graphing two different scales on one piece of paper.
I could graph 1000TQ on one side and 50 HP on the other and the lines would be so far away it would be pathetic, but the values DID cross at 5252.
I know Max gets it but everyone worried about lines might as well have a crayon in their hand because they don't understand what values mean. Lines crossing on a differently scaled graph mean NOTHING regarding where they cross.
I could graph 1000TQ on one side and 50 HP on the other and the lines would be so far away it would be pathetic, but the values DID cross at 5252.
I know Max gets it but everyone worried about lines might as well have a crayon in their hand because they don't understand what values mean. Lines crossing on a differently scaled graph mean NOTHING regarding where they cross.
Club Member
Joined: Jul 2014
Posts: 11,470
Likes: 3,572
From: Idaho
SIGH...Ummm without being able to click on 5252, looking at that graph HP at 5252 looks about 112 and torque at 5252 is the same. This is exactly what every single post I made states will happen. Horsepower and torque cross at 5252 ALWAYS. Visually when scaled differently they do not because you are graphing two different scales on one piece of paper.
I could graph 1000TQ on one side and 50 HP on the other and the lines would be so far away it would be pathetic, but the values DID cross at 5252.
I know Max gets it but everyone worried about lines might as well have a crayon in their hand because they don't understand what values mean. Lines crossing on a differently scaled graph mean NOTHING regarding where they cross.
I could graph 1000TQ on one side and 50 HP on the other and the lines would be so far away it would be pathetic, but the values DID cross at 5252.
I know Max gets it but everyone worried about lines might as well have a crayon in their hand because they don't understand what values mean. Lines crossing on a differently scaled graph mean NOTHING regarding where they cross.
The curves, although they do not intersect at 5252 because of the different scaling, still give identical numbers at 5252, even though the lines are different.
Love it!
Grand HDF Member
Joined: Sep 2017
Posts: 4,359
Likes: 1,219
From: Dubuque, IA
More hp means = more torque hanging on longer.
Torque isn't always higher than hp in an HD twin cam either. Depends on the cam mostly. But bore vs stroke to some extent too. An all bore 107 will typically have more square numbers than a "stroker" 107 with the same cam. Exhaust plays a part to some extent too.
I prefer more square numbers personally. My 127hp/126ft.lbs. in a "stroker" 107 is because of the cams mostly and to some extent the pipes.
And notice since both are scaled the same(100 on one side lines up with 100 on the other side, etc) hp and torque cross at 5252rpm.
Now take my peak torque of 126.37 and multiply it times the rpm it occurs at(4350) and you get 549,709.5 and divide that by 5252 and you get the 104.66hp that occurs at the same rpm(4350). Simple. Doesn't get any simpler than that.
Last edited by 60Gunner; Apr 23, 2022 at 04:37 PM.
Grand HDF Member
Joined: Sep 2017
Posts: 4,359
Likes: 1,219
From: Dubuque, IA
My bad if you already knew that.
Last edited by 60Gunner; Apr 23, 2022 at 04:59 PM.
Seasoned HDF Member
Joined: Dec 2005
Posts: 19,939
Likes: 8,036
From: poway
I already knew that. It's hard to get the line right on the number. It's close enough.
HD Forum Stories
The Best of Harley-Davidson for Lifelong Riders
7 Times Harley-Davidson Chucked Tradition Out the Window
Verdad Gallardo
7 Surprising Harley-Davidson Products that Are Not Motorcycles
Verdad Gallardo
8 Best Harley-Davidson Motorcycles Ever
Pouria Savadkouei
10 Worst Harley-Davidson Motorcycles Ever
Pouria Savadkouei
Killer Custom's Jail Break Is The Breakout That Refused to Blend In
Verdad Gallardo
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?
Verdad Gallardo
Harley-Davidson Reveals Super Cool Cafe Racer Concept
Verdad Gallardo
Engraved Rebellion: Inside Bundnerbike's Glam Rock II
Verdad Gallardo
