Accompany us on our way to the 52 wild horses...
RED
39,3 hp at 7674 U/min
36,5Nm at 7372 U/min
Starting point was the barrel with original porting timings and a gentle pipe.
Guess that's what the powerband of the Husqvarna engine looked like, that had to splash out its barrel.
BLUE
47,5hp at 8593 U/min
41,1Nm at 7372 U/min
It's all about time: After having changed porting timing, time areas and the exhaust prototype several times the engine spits out 8hp more and a wider band – nevertheless peaking at the same rpm! (If only my maths teacher could see that)
GREEN
51,3hp at 9088 U/min
41,9Nm at 8171 U/min
After increasing bore to 71,5mm (=260cc) and again messing around with porting timing, time areas and the exhaust, the magical barrier is overcome – still with a powerband elastic as a bungee rope! |
