Doug904
Sponsor
- Joined
- March 30, 2001
- Messages
- 534
- Reaction score
- 1
- City, State
- Jasper, Alabama
- Year, Model & Trim Level
- 2005 Roush GT
I just thought I would break this out from the other posts as it is really good information for anyone planning to goto the dyno.....
Doug,
This is a question I get a lot and there is a very simple answer to it. The dyno software sets the scale for the HP and TQ automatically and therefore they are often different. For example: If a car makes 330HP and 360 TQ, Winpep will have 350 at the top of the HP side of the graph and 400 at the top of the TQ side. It is like two sepatate graphs on one page. When arranging the graph, however, I can "force" the scaling so that they are the same and the HP and TQ will cross A 5250 every time. Attached, you will find two graphs of the new base pull on Robert's Ranger. One is scaled
automatically and, on the other, I forced the scaling, neither affect the horsepower or torque numbers abit. I hope this helps......
Here's the two graph's he's attached....
Auto Scaling You'll notice on the top of the Torque side of the graph it is 220 but on the top of the HP side is 200 and therefore the numbers cross at 4800 rpm's.
Forced Scaling... Now if you look at this graph you'll see that the rating number as the top of both sides is 200, and the TQ goes higher.
Thanks, Doug.
Doug,
This is a question I get a lot and there is a very simple answer to it. The dyno software sets the scale for the HP and TQ automatically and therefore they are often different. For example: If a car makes 330HP and 360 TQ, Winpep will have 350 at the top of the HP side of the graph and 400 at the top of the TQ side. It is like two sepatate graphs on one page. When arranging the graph, however, I can "force" the scaling so that they are the same and the HP and TQ will cross A 5250 every time. Attached, you will find two graphs of the new base pull on Robert's Ranger. One is scaled
automatically and, on the other, I forced the scaling, neither affect the horsepower or torque numbers abit. I hope this helps......
Here's the two graph's he's attached....
Auto Scaling You'll notice on the top of the Torque side of the graph it is 220 but on the top of the HP side is 200 and therefore the numbers cross at 4800 rpm's.
Forced Scaling... Now if you look at this graph you'll see that the rating number as the top of both sides is 200, and the TQ goes higher.
Thanks, Doug.
