CREATE TABLE "engine_reference" (
  "code" text,
  "vehicle" text,
  "year" text,
  "displacement" text,
  "bore" text,
  "stroke" text,
  "c_r" text,
  "max_power" text
);

Question: What stroke has a max power of 109 ps(80kw)@4000 rpm?
SQL: SELECT "stroke" FROM "engine_reference" WHERE "max_power"='109 ps(80kw)@4000 rpm';

Question: The nissan primera p12 nissan almera n16 has what C.R.?
SQL: SELECT "c_r" FROM "engine_reference" WHERE "vehicle"='nissan primera p12 nissan almera n16';

Question: What displacement has the code yd22ddt?
SQL: SELECT "displacement" FROM "engine_reference" WHERE "code"='yd22ddt';

Question: What code has a C.R of 16.7:1?
SQL: SELECT "code" FROM "engine_reference" WHERE "c_r"='16.7:1';