Tried to look into it, If we consider Torque - HorsePower ratio equal on all engines, than the strongest engine which Russia is building is 1250 HP for the T-90M, which is 250 HP short, I guess they can develop 1500+ if they want to, the other 2 points supply and compatibility. Well Altay is still prototyping so compatibility can be worked around, coming to supply this can be a issue, can they produce the number of engines and parts we need and if they can are they willing to supply us with those engines even though it might give them some income.