The MTOW from globalsec, fas.org and other sides they all state it is around 7500-8000 kg, the actual numbers is hard to come by, since China is fairly secretive about leaking informations and because it is still in development of upgrades and other systems that will have direct effect on the weight of the Helicopter also maybe further weapon integration will also have an impact on the MTOW and empty weight from the new more powerful engines, so that is why i can only specify what i know so far.
1000 kW which is 1341 shp with 8000 kg MTOW and this number will only raise with further upgrades with Radar, more electronics and new engines and rearrangement of the engine compartment room to fit the new engines. 1341/8t = 167.625 shp/t ~ 167.63 shp/t.
If you have more credible sources for MTOW and specific performance of WZ-9 engines in OEI, Take Off and max emergency power then i would be happy to see it.
Just because the numbers are hard to come by, doesn't mean you should be using the completely unreliable numbers of globalsec, fas.org. You would notice that in no other threads do we use these as "sources". There is no indication from any of the sources that I read that MTOW for Z-10 is in that range. Everything I read point to closer to Eurocopter Tiger. This is something I always try to preach around here. Be very careful about the source that you use when it comes to Chinese military.