Well I do not know what I am pushing for exact HP at the moment but the torque just wiped out a chain with 100 miles on it and another front sprocket. Chain can be fixed with extrat links, sprocket is missing teeth. 1/4 was unreal. I had a hard time launching, being out of practice. However the second 1/8 made up for what it lost of the line 150mph 160mph top speed at the end of the 1/4.