I have some good news for you guys!
On Thursday this week i installed the swingarm back to the bike, hooked everything up and did a test run.
Test run probably is the wrong describing as it was going without any worth mentioning issues and it was so fun that i almost would have need to shove the bike home because i overseen battery soc. It was a 60km ride in a hilly area.
First i must mention that i wasn't able to set more than 200A phase because the thin 12AWG motor wires (i used a grin tech motor wire only temporarly for the test) got so damn hot it almost melted when i was going uphill, or after a few hard accelerations.
The battery amps were set to 120A and i was seeing above 9kW peak.
Setting up the Adaptto controller for optimal efficiency is definitely a nightmare.
Autodedect "detected" a hall angle of -2,5° to be optimal, but it wasn't (i adjusted the halls mechanically to be exactly 0° with the oscilloscope).
During the ride it turned out that an angle between 0 and -0,8° is optimal (unfortunately a value between cannot be chosen as the numbers jump).
Same with PWR timing. 0,35 - 0,53 - 0,71.
At 0,71 together with half open throttle the power was pumping while i was maintaining crusing speed. 0,35 was a bit too low as i noticed a bit more heat in the motor, so i set it to 0,53°and got good results.
Well, how is the performance, noise etc?
It is on the same, rather better overall performance level as the MXUS 3k which was previously installed on the bike.
The 8057 does heat up a little bit quicker due to much lower copper and iron mass, but it was staying below a dangerous temperature most of the time due to good cooling.
When i was riding around 75kmh continuously on the road in a hilly area, the temperature was alternating between 65 and 90°C.
Definitely not bad for a 2,7kg motor with a reduction of 1:6
But the best thing, or the thing which was noticeable the most was the MUCH better feeling due to the lower unsprung mass.
I can now lean into corners without need to be afraid to loose traction if the road isn't totally smooth. When riding over potholes with the MXUS it felt like someone is giving me a looong and hard kick in the ass. Now the kick feels short and very well dampened by the suspensions.
It is no comparison!! It rides soooo much more comfortable and better now
Now i need to swap the phase wires from 12AWG to something like 8AWG so i can crank up the phase amps to 300A+.
I also noticed that there is some strange noise coming from the bearing on the shaft side. It was defect out of the box as it has had some play from the beginning on.
Aside from the noise a defect bearing makes it also makes the rotor vibrating too. I need to swap it out for i high quality SKF.
The belt stays on the pulleys like it should. There is absolutely no risk that it could go off.
Just on the small drive pulley it sometimes is moving by 1-2mm away from the guide flange, but i believe this can be fixed by mounting the motor with a little twist.