Well...why dont you enlighten us with the first 2 times you changed the engines.........what engines did u use and what were the problems you associate with them ......thats the first issue you need to address...maybe uve already tried the engine mentioned above by some viewers.........diesel engine in a rx8 wud be dodgy......it wud be great if sm1 who has swapped engines in a rx8 cud comment ........there was a red one smtime back with an underpowered starlet engine in it.......some boyz in peshawar swapped a 2jz in theirs,,,still no feedback......is it proven that the 1jz wud run just fine.???.......maybe importing a renesis engine wud be the answer to ur problems once and for all......dont think u wud sell it, as you clearly luv this baby......