Hi, I don't know if this is going to affect some of your calculations on TTGL, but according to the novel of this one, Gozu is ten times the size of an adult (1.707m x 10 = 17.07m).
Also Gunzar is stated to be larger than the two of them and Gurren Lagann should have a larger size. Just like Dai-Gunzan is said to be ten times the size of Gurren Lagann.
()
Also Gunzar is stated to be larger than the two of them and Gurren Lagann should have a larger size. Just like Dai-Gunzan is said to be ten times the size of Gurren Lagann.
()