Hey,

I'm planning a belt conversion for my X3. The gearbox will be bypassed and I plan to have the max spindle be at least 5000 rpm. I run flood coolant and will be running it through a heatsink mounted on the head.

My question is, should I buy a more powerful motor and VFD while I'm at it?

I'm in the dark when it comes to VFDs. Does a VFD act like a gear ratio in a sense; when VFD slows the motor down, the motor gains torque. That's a big gain for me. I'd like to not have to change belts.

Could the X3 even use more power or will rigidity become a problem?

Thanks
Adam