Quote:
Originally Posted by Dave-ROR
That's even worse. That means the graph is a lie.
It mathmatically does NOT work. If you know the RPM and either HP or TQ you can't mathmatically determine the other, and the numbers DO NOT work in the posted graph.
Example, if we have torque and RPM, we determine horsepower by: HP=TQ*RPM/5252. If we have HP and RPM, we determine torque by: TQ=5252*HP/RPM
So, if we use the spot they have a cursor on around 3225rpm, they show basically 254lbft of torque and approx 137-138hp, but lets call it 140.
If we do the math...
HP=254*3225/5252
HP=156HP
TQ=5252*140/3225
TQ=228lbft
So if we use EITHER of their provided numbers at a set RPM, it simply DOES NOT work. You can pick any RPM, I did so with a few and the results were always the same - the graph doesn't make sense if both are wheel numbers.
So take you pick, both are wheel and the graph is a lie or one is calculated somehow. Both can't be wheel and accurate. Unless the Dynopack changes the fundamental definition of the relationship between HP and TQ of course.
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This has already been explained too. That Dyno graph shifts up the Torque side so that peak HP and peak TQ are in the same level line. Look at the torque scale on the left, you will see a different number then the HP scale on the right (this is the shifting). That is why they don't meet at 5252.
The numbers are not Lying. It doesn't say 279 TQ and 279 HP, it says 254 TQ and 279 HP, they look like that only because of the torque shift up. And again, it was not intended to mislead, as AVO had already explained it.