The Dual FSESC6.6 build really feels underpowered. Motors have quite same specs. Lipo are the same. Gear ratio is the same. So I think this ESC based on VESC6 is guilty.
VESC-Tool 2019 1.06 says I can put 67A into the Turnigy SK8 6374-192KV motors. I tried Motor/Battery max 67A, 70A, 80A and 90A. I get strator saturation with 90A so I set below.
I did not manage to get more than 51A from the Lipo (Battery max current). There’s a lack of power, and delay when pulling the trigger before getting it. I set Positive Ramping Time to 0,10 but it’s not enough.
When looking at Jens (E-TOXX) videos relating to VESC6, I can not believe he uses the same kind of ESC, even though I know he uses bigger motors from Leopard or APS.
So, is it possible that this VESC6 based ESC from Flipsky is not as good as original VESC6 from Trampa?
Other question, should I increase Absolute Maximum Current? to 200 or 250 with Battery/Motor Current Max 80A?
I remember nowind complaining about vesc being lame until he installed the unlimited firmware and changed some settings. Maybe dig around in his threads? And post here what you find
The motors may have the same specs but I am not sure this also applies to their performance.
I am still on the fence about the SK8 motors as they don’t feel as strong as the Maytech 6374
Did you try zero? My minimum was 0.1 but would like to try 0.01 for positive ramping time. I’m afraid this could be bad for the Vesc because the tutorial says changements between 0.1 and 0.9. That’s why I never tried it, do you think it’s safe?
From this post it seems you are using an older version of the vesc tool that activated temperature compensation by default and caused various problems. I had that happen too.
Update your firmware and it will most likely solve your problem
I tried what @deucesdown said but I got no clues from @nowind’s thread about getting more power.
I don’t need it smooth, I have footstraps. I just need punch in the face
Tomorrow I’ll try almost vertical throttle curve.
@taz I use @ackmaniac latest firmware. I feel it overperforms official firmware imho.
About (as if) lost current I wonder if vedder’s antispark switch could steal current. It’s the only thing between the Lipos and the FSESCDUAL. If it does then it would change current into heat. The antispark is inside a box but I don’t think it gets hot. Maybe I’m wrong…
Anyway, this FSESCDUAL6 didn’t want to pull more than 66 A (I’d prefer 666).
While riding with the ROXXYs Lipos are warm at the end. With the FSESCDUAL6, the Lipos stay cool… Why that thing doesn’t want to pull the resquested amps…
