My '91 RX7 needs a new engine, but I dont know what to do. What would be better: remanufactured 13B, used 13B, or J-SPEC? Also, what is so special about the J-SPEC? I know they have more power, but what is done differently to give them more power? Thanks!



By the way, I have a $3500 budget. https://www.nopistons.com/forums/pub...1047683358.gif

rebuild.... if its already turbo, if its not sell the shell or part it out and buy a t2. jspec's alot of times need rebuilds, not always but ive seen quite a few cases where they did. but your best bet is to rebuild your turbo motor or part out/ sell your car and buy a t2 =D

nothing is special about j-spec ecxept misc emissions ****. and they don't have more power.