Table: nissan_yd_engine_data
Columns: code
vehicle
year
displacement
bore
stroke
c_r
max_power

Question: What stroke has a max power of 109 ps(80kw)@4000 rpm?
SQL: SELECT "stroke" FROM nissan_yd_engine_data 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 nissan_yd_engine_data WHERE "vehicle" = 'nissan primera p12 nissan almera n16'

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

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