There are no real surprises, though note how this motor delivers pretty much 90% of its peak torque figure from around 2300 RPMs all the way to 6200 RPM. According to Doug Macmillan of Hondata, the VTEC "window" on the L15A falls between 2200 and 3400 rpm with actuation dependent upon throttle position and load. At WOT, the second intake valve should joins the party at around 2200 rpms (the "VTEC engagement point"). At about 3400 rpm, the torque curve takes a brief dip - this is due to a momentary peak in the torque curve between 2500 and 3300 rpms which can be attributed to the long narrow runners of intake manifold. As you can imagine, on the street this motor feels pretty consistent across the rev range.