i mentioned your engine issue to my mitsu guru and his response:
Very odd. I have to wonder if they did porting on the oil pressure bypass? Second I'd look at the cylinder walls and make sure a piston pin hasn't walked (uncommon but I've seen it). Another thing is the balance shaft delete. If they didn't use the oenophile 1.6 style stub shaft it can cause issues. The oem style has and oiling groove the knock offs don't have.
epic when the announcer was in the middle of warning people: "Everyone Needs to Behave... There's Unmarked Police Patrolling the Perimeter!"
but was interrupted by a goofus in a z32tt doing a wacko loud reckless 300ft burnout
@riaan140z
contact these guys
http://lescollinsracing.com/engine/projects-engine/lz20b-rally
new chain + gears, etc. have to be fabbed up, and aust. is the place to have it done