I emailed the FAA here is their answer:
Yes, the airman is allowed to log PIC time in a Robinson R-22 as long as the airman meets the requirements of § 61.51(e)(1)(i) provided the airman holds the required category and class ratings to do so. However, the airman may not act as PIC until the airman has received 10 hours of instruction from a qualified flight instructor and received a logbook endorsement in accordance with SFAR 73 2.(b)(1)(ii).