HuskyBrutha
Husqvarna
AA Class
Hey, Xpat, let' s put your dynochart in some perspective here.
With reference to the dyno chart, those are nice curves you got there !
Torque curve : +85% of max torque is avaialbe from 2500RPM thru to 6500RPM.
Power curve: nice and linear and the drop off from 6500 to 8500 is very gradual -maybe the EHS is running out of flow there.
The smooth curves indicate that the engine is well designed and functioning well.
With reference to the final 54 rear wheel HP, we need to take drive train loss into account to get to Husqvarna quoted fly wheel / crankshaft hp.
Internet forum opinion is that drive train loss is between 10% and 15%
Final Crankshaft HP then works out to 61HP assuming a 12% drivetrain loss or 60HP assuming a 10% loss.
This compares favourably to the Official quoted figure of 57HP for the 630. Nice.
The real bonus here is the Torque.
Dyno Torque is 57NM + 10 % loss for altitude + 10% loss for drive train loss and 2 NM for the Knobly factor.
70NM Crankshaft torque.
Not shabby at all, my china

Considering that the all conquering and Iconic 650cc Honda XR650R produced 62HP and 64NM (altitude and drive train etc adjusted ) at the crank in uncorked and well tuned form on the dyno, I would say that your little 600cc TE is really pumping at 60HP and 70NM.

With reference to the dyno chart, those are nice curves you got there !

Torque curve : +85% of max torque is avaialbe from 2500RPM thru to 6500RPM.
Power curve: nice and linear and the drop off from 6500 to 8500 is very gradual -maybe the EHS is running out of flow there.
The smooth curves indicate that the engine is well designed and functioning well.
With reference to the final 54 rear wheel HP, we need to take drive train loss into account to get to Husqvarna quoted fly wheel / crankshaft hp.
Internet forum opinion is that drive train loss is between 10% and 15%
Final Crankshaft HP then works out to 61HP assuming a 12% drivetrain loss or 60HP assuming a 10% loss.
This compares favourably to the Official quoted figure of 57HP for the 630. Nice.

The real bonus here is the Torque.
Dyno Torque is 57NM + 10 % loss for altitude + 10% loss for drive train loss and 2 NM for the Knobly factor.
70NM Crankshaft torque.
Not shabby at all, my china


Considering that the all conquering and Iconic 650cc Honda XR650R produced 62HP and 64NM (altitude and drive train etc adjusted ) at the crank in uncorked and well tuned form on the dyno, I would say that your little 600cc TE is really pumping at 60HP and 70NM.
