electric question

[AddictedtoNITRO]

Hi guys I got a couple q's.
First off let me say that I am pretty new to the whole rc hobby maybe a year in. I have a T-maxx w/force .15 bb, A nitro Evader st stock .18, Mrp outrageous drag boat w/ 19t mod motor and novak esc, and now a losi jrx-t. My q's are I picked up a reedy 9t motor thats like new. I put it in with my novak and it runs for like 15 sec and quits. Pretty sure esc's not powerfull enough for it. what is a good cheap esc for this motor? Also how do I run for more than 4 freakin minuits. I have 1500 batts. How much more will I get if i get some 3300 or 3800's? Finally as you cam tell I'm going pretty cheap with my stuff. I buy stock replacements when I break. I'm saving my money for a zenoah powered 50" forabuck Project. I like to drive my stuff but this electric stuff is really frying me. lol
Any help would be appreciated also if you got something I need let me know
Thanks