Here is the last 20-sec sprint from the other day, it had the highest peak torque of the sprint-intervals:
By that point all I had left in my legs was a 6-sec ~800 sprint 
That one had highest torque but not the highest power!
Some coaches use muscle tension intervals In the early season / base to prepare for this type of work. For example:
and
And don’t forget @HMG posted above about your posterior chain (back, glutes, hips, etc). Delivering a strong shot of power/torque to the pedals is more than just training the brain/body connection.
And FWIW my vo2max and threshold and sweet spot and tempo intervals are all in the 25-35Nm of torque unless I reduce cadence down to 40rpm.