The generator matrix

 1  0  0  0  1  1  1  1  2  2  1  6  0  1  1  4  6  1  1  1  1  2  1  4  1  0  6  1  1  1  4  1  1  1  0  0  0  0  1  2  1  1  1  1  1  1  6  1  6  1  6  1  0  1
 0  1  0  0  2  1  4  6  2  1  7  1  1  7  3  2  1  5  1  0  3  1  4  1  0  4  0  7  0  2  4  1  3  0  1  1  6  1  7  1  7  7  4  0  2  5  1  6  6  2  4  0  6  0
 0  0  1  0  0  0  1  1  1  1  5  4  5  3  6  1  1  2  5  7  2  2  6  2  0  6  1  4  7  6  1  2  7  7  7  6  0  6  5  7  1  7  2  2  5  6  6  4  1  1  1  2  4  4
 0  0  0  1  1  3  3  2  3  4  1  5  5  6  6  0  1  1  2  3  0  0  4  7  3  1  7  6  1  4  6  3  2  4  7  1  1  6  1  0  0  7  4  3  5  6  7  5  0  5  5  5  1  0
 0  0  0  0  4  0  0  4  4  4  4  4  0  0  4  0  0  0  0  0  4  0  0  4  4  0  4  0  4  4  4  4  4  4  4  0  4  4  0  4  0  4  0  4  4  4  4  0  0  0  0  0  0  0
 0  0  0  0  0  4  0  0  0  4  4  4  4  4  4  4  0  0  0  4  0  4  4  0  4  4  4  0  0  0  0  4  4  4  4  0  4  0  0  0  4  0  0  0  0  4  4  0  4  4  4  4  4  0

generates a code of length 54 over Z8 who´s minimum homogenous weight is 46.

Homogenous weight enumerator: w(x)=1x^0+113x^46+330x^47+606x^48+872x^49+1157x^50+1370x^51+1399x^52+1524x^53+1640x^54+1658x^55+1539x^56+1272x^57+1056x^58+786x^59+453x^60+296x^61+172x^62+68x^63+34x^64+19x^66+12x^67+4x^69+2x^70+1x^78

The gray image is a code over GF(2) with n=216, k=14 and d=92.
This code was found by Heurico 1.16 in 6.91 seconds.