Dyno Results Help
Seasoned HDF Member
Joined: Dec 2005
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Zach
Outstanding HDF Member
Joined: Oct 2007
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That is a common thing. If you look at the hp vs the other side TQ you will see that one side is 20 points higher. If the scales were the same on both hp and tq they would cross at 5252. It is easier to read for most when the scales are the same but it does not have any effect on the numbers, it just makes the graph look more balanced. If the scales were the same the hp woul look even lower because the tq would be higher in comparison. the dyno teck can change the scaling with a stroke of the key board.
Seasoned HDF Member
Joined: Dec 2005
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It's kind of a weird graph. The hp peaks at 78, but the line looks closer to 75. Same for the tq. I'm not doubting the numbers, I'm just saying the chart looks a little weird. If it was stretched out and scaled the same for hp and tq, I think it would look much more familiar.
Zach
Zach
Tourer
Joined: Aug 2010
Posts: 320
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From: Hudson Valley
If you are not used to looking at that style chart it can be a little confusing.
I am not sure why anyone prints them that way.
Horsepower is on the left side axis and Torque is on the right side axis.
You will see that 80 is at the top on the left and 100 is at the top on the right.
If you go to 5252 on the bottom, then go up to the curves you will see that horsepower as read on the left and torque as read on the right are they same.
Take time and look at the sheet, it can be confusing, but if you stare at it long enough, you will see it. It might be easier if you print it out and touch it with your hands.
I am not sure why anyone prints them that way.
Horsepower is on the left side axis and Torque is on the right side axis.
You will see that 80 is at the top on the left and 100 is at the top on the right.
If you go to 5252 on the bottom, then go up to the curves you will see that horsepower as read on the left and torque as read on the right are they same.
Take time and look at the sheet, it can be confusing, but if you stare at it long enough, you will see it. It might be easier if you print it out and touch it with your hands.
Road Warrior
Joined: Feb 2009
Posts: 1,727
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From: TN
OK guys, I finally see the light. If the right hand numbers went to only 80 at the top of the chart, the intersecting points of hp and torque would move right to 5252. Thanks for the enlightenment, but it is still a stupid f-----chart. BTW I was never questioning the numbers, just the chart.
Bwana
Bwana
Tourer
Joined: Jul 2010
Posts: 277
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From: Central Ohio
Dyno-96-to-103-small.jpg
The peak numbers don't change much, but there is a lot of space between the lines and the difference is obvious when riding. This also indirectly addresses the original "are my numbers about right?" question of the thread...
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Stellar HDF Member
Joined: May 2008
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From: Sunny Southern California
If you read the post I was refering to, they were already at 90mph. By downshiftng at that speed, wouldn't that put the RPM's above the power curve of the 255's? I would think 90mph in 5th the R's are above the 4,000 or so RPM peak of the 255's?
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