ABS Splitting apart on tall builds

I've been trying to print some taller parts 3-6" tall with ABS.  I Would like to print something as tall as 12-16" tall.  When printing a 6" tall part it usually splits and warps half way up.  I'm printing with a tip temp of 255, bed temp of 110 and have an enclosure, speed is 40mm/sec.  Don't have problem with it coming off the glass, just splitting and warping somewhere up the part.  Would a higher bed temp help?  I can go as high as 125. Should I slow it down, have less infill?  I've been using 80-100% infill on 3mm walls with a 1mm wall thickness.
I'm using a Airwolf 3d HD, but plan to build something larger if I can figure this out.

I have a t-glase print running right now on a 4" tall part, hopefully that will perform better.  Other than the blobs it seems to be running pretty good.  It's just very slow compared to ABS. It prints at about 18mm/sec, much faster the bead prints as a dashed line.  So this build is suppose to take 25hrs. 

I would like to find something that does't warp as much and can print faster than t-glase. I don't mind epoxy coating afterwards if need be.  If you have any suggestions please let me know.  I want to print small tanks (3-4 gal), pump and motor housings for submersible pumps.