I don't know if it is me, but since I put in my B18b1 in my '94 civic it has been eating tires. Just trying to figure out if anybody had this same problem and how did you fix this problem. My suspension is the stock '94 civic ex suspension. My thing is I am not sure if upgrading the suspension will help any.

i would look online and see what different characteristic fit...usually by how the tire looks you can see what could be the problem

Are there any differences in weight capacity for the suspension of the civic and integra?

not to my knowledge, the 94 civic and DC integra use the same suspension

yeah theres no real difference besides the front sway bars thickness and the DC havin a rear sway bar. but if you're lookin into upgrades in suspension i did the integra rear oem sway bar and control arms with a full front and rear energy suspension lca bushing kit with the sway bar links and a tein super street full body coilover system. i love it