Yeah I kinda figured that . How has it been detuned, ECM programing, different airbox/filter assembly, exhaust???
Exhaust and air intake are obviously different, and camshafts are also more "conservative". ECU programming is probably different too. I'm not sure if there are other differences.
Daytona is equipped with 'hotter' cams, which theoretically will give more top end at the expense of some bottom and midrange. ECU mapping, fueling, etc is also different to match the engine requirements.
Result? The torque peak is shifted much higher in the RPM range on the Daytona (11750 rpm vs 9100 rpm on the Street). Since POWER is simply torque x speed, the power peak is also shifted higher (12500 rpm vs 11700 on the Street).
So...the increased power is a result of:
1. Slightly higher torque (+2 ft-lb, but higher in the rev range)
2. Higher RPM (note: even if the torque was the same, the higher rpm for the Daytona's power peak would add 7.3 hp)
What does this mean? if you're ripping and keeping the rpm very high (say, on a track), the Daytona motor has the advantage. Everywhere that I ride, I would prefer the Street's motor.
If Triumph had put the ST engine into a sports bike it would probably have been considered an 'also ran' and totally overlooked by the press.........Put the Daytona motor in the ST and it would be given the same treatment......too peaky, to much hardwork for that type of bike. Despite this, ST owners are already trying to find ways of getting back that extra peakiness.
. How has it been detuned, ECM programing, different airbox/filter assembly, exhaust???
Linear Mode
