Down are kernels and generated bins for X algos(11, 13, 15):

http://www.filedropper.com/x111315kernels
http://www.filedropper.com/x111314bins

Complete decision including last version of sgminer and all this kernels&bins&configuration file you can use:
http://www.filedropper.com/sgminer-51-dev-2014-mod

If you like to compile yourself you can download from:
https://github.com/sgminer-dev

This kernel&bins are for Tahiti&Hawaii. I have no Kaiman and Pitcairn to test.
After the test if you're satisfied you can tip me here: 13FykK1WoEwXV1WvrjT1hDRi1E1gFaBT8y
And Wolf0, of course!

270x is no speed? Thank you

hucyun